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Current File : /var/www/html/ouvidoria/cmbeberibe/js/RGraph/libraries/RGraph.scatter.js
// version: 2014-08-16
/**
 * o--------------------------------------------------------------------------------o
 * | This file is part of the RGraph package - you can learn more at:               |
 * |                                                                                |
 * |                          http://www.rgraph.net                                 |
 * |                                                                                |
 * | This package is licensed under the Creative Commons BY-NC license. That means  |
 * | that for non-commercial purposes it's free to use and for business use there's |
 * | a 99 GBP per-company fee to pay. You can read the full license here:           |
 * |                                                                                |
 * |                      http://www.rgraph.net/license                             |
 * o--------------------------------------------------------------------------------o
 */

RGraph = window.RGraph || {isRGraph: true};


/**
 * The scatter graph constructor
 *
 * @param object canvas The cxanvas object
 * @param array  data   The chart data
 */
RGraph.Scatter = function (conf) {
    /**
     * Allow for object config style
     */
    if (typeof conf === 'object'
        && typeof conf.data === 'object'
        && typeof conf.id === 'string') {

        var parseConfObjectForOptions = true; // Set this so the config is parsed (at the end of the constructor)

        this.data = new Array(conf.data.length);

        // Store the data set(s)
        this.data = RGraph.arrayClone(conf.data);


        // Account for just one dataset being given
        if (typeof conf.data === 'object' && typeof conf.data[0] === 'object' && (typeof conf.data[0][0] === 'number' || typeof conf.data[0][0] === 'string')) {
            var tmp = RGraph.arrayClone(conf.data);
            conf.data = new Array();
            conf.data[0] = RGraph.arrayClone(tmp);

            this.data = RGraph.arrayClone(conf.data);
        }

    } else {

        var conf = {id: conf};
        conf.data = arguments[1];


        this.data = [];

        // Handle multiple datasets being given as one argument
        if (arguments[1][0] && arguments[1][0][0] && typeof arguments[1][0][0] == 'object') {
            // Store the data set(s)
            for (var i = 0; i < arguments[1].length; ++i) {
                this.data[i] = RGraph.arrayClone(arguments[1][i]);
            }

            // Handle multiple data sets being supplied as seperate arguments
        } else {

            // Store the data set(s)
            for (var i = 1; i < arguments.length; ++i) {
                this.data[i - 1] = RGraph.arrayClone(arguments[i]);
            }
        }
    }


    this.id = conf.id;
    this.canvas = document.getElementById(this.id);
    this.canvas.__object__ = this;
    this.context = this.canvas.getContext ? this.canvas.getContext('2d') : null;
    this.max = 0;
    this.coords = [];
    this.type = 'scatter';
    this.isRGraph = true;
    this.uid = RGraph.CreateUID();
    this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
    this.colorsParsed = false;
    this.coordsText = [];
    this.original_colors = [];
    this.firstDraw = true; // After the first draw this will be false


    // Handle multiple datasets being given as one argument
    //if (arguments[1][0] && arguments[1][0][0] && typeof(arguments[1][0][0]) == 'object') {
    //    // Store the data set(s)
    //    for (var i=0; i<arguments[1].length; ++i) {
    //        this.data[i] = arguments[1][i];
    //    }

    // Handle multiple data sets being supplied as seperate arguments
    //} else {
    // Store the data set(s)
    //for (var i=1; i<arguments.length; ++i) {
    //    this.data[i - 1] = arguments[i];
    //}
    //}


    // Various config properties
    this.properties = {
        'chart.background.barcolor1': 'rgba(0,0,0,0)',
        'chart.background.barcolor2': 'rgba(0,0,0,0)',
        'chart.background.grid': true,
        'chart.background.grid.width': 1,
        'chart.background.grid.color': '#ddd',
        'chart.background.grid.hsize': 20,
        'chart.background.grid.vsize': 20,
        'chart.background.hbars': null,
        'chart.background.vbars': null,
        'chart.background.grid.vlines': true,
        'chart.background.grid.hlines': true,
        'chart.background.grid.border': true,
        'chart.background.grid.autofit': true,
        'chart.background.grid.autofit.numhlines': 5,
        'chart.background.grid.autofit.numvlines': 20,
        'chart.background.image': null,
        'chart.background.image.stretch': true,
        'chart.background.image.x': null,
        'chart.background.image.y': null,
        'chart.background.image.w': null,
        'chart.background.image.h': null,
        'chart.background.image.align': null,
        'chart.background.color': null,
        'chart.text.size': 10,
        'chart.text.angle': 0,
        'chart.text.color': 'black',
        'chart.text.font': 'Arial',
        'chart.tooltips': [], // Default must be an empty array
        'chart.tooltips.effect': 'fade',
        'chart.tooltips.event': 'onmousemove',
        'chart.tooltips.hotspot': 3,
        'chart.tooltips.css.class': 'RGraph_tooltip',
        'chart.tooltips.highlight': true,
        'chart.tooltips.coords.page': false,
        'chart.units.pre': '',
        'chart.units.post': '',
        'chart.numyticks': 10,
        'chart.tickmarks': 'cross',
        'chart.tickmarks.image.halign': 'center',
        'chart.tickmarks.image.valign': 'center',
        'chart.tickmarks.image.offsetx': 0,
        'chart.tickmarks.image.offsety': 0,
        'chart.ticksize': 5,
        'chart.numxticks': true,
        'chart.xaxis': true,
        'chart.gutter.left': 25,
        'chart.gutter.right': 25,
        'chart.gutter.top': 25,
        'chart.gutter.bottom': 25,
        'chart.xmin': 0,
        'chart.xmax': 0,
        'chart.ymax': null,
        'chart.ymin': 0,
        'chart.scale.decimals': null,
        'chart.scale.point': '.',
        'chart.scale.thousand': ',',
        'chart.title': '',
        'chart.title.background': null,
        'chart.title.hpos': null,
        'chart.title.vpos': null,
        'chart.title.bold': true,
        'chart.title.font': null,
        'chart.title.xaxis': '',
        'chart.title.xaxis.bold': true,
        'chart.title.xaxis.size': null,
        'chart.title.xaxis.font': null,
        'chart.title.yaxis': '',
        'chart.title.yaxis.bold': true,
        'chart.title.yaxis.size': null,
        'chart.title.yaxis.font': null,
        'chart.title.yaxis.color': null,
        'chart.title.xaxis.pos': null,
        'chart.title.yaxis.pos': null,
        'chart.title.yaxis.x': null,
        'chart.title.yaxis.y': null,
        'chart.title.xaxis.x': null,
        'chart.title.xaxis.y': null,
        'chart.title.x': null,
        'chart.title.y': null,
        'chart.title.halign': null,
        'chart.title.valign': null,
        'chart.labels': [],
        'chart.labels.ingraph': null,
        'chart.labels.above': false,
        'chart.labels.above.size': 8,
        'chart.labels.above.decimals': 0,
        'chart.ylabels': true,
        'chart.ylabels.count': 5,
        'chart.ylabels.invert': false,
        'chart.ylabels.specific': null,
        'chart.ylabels.inside': false,
        'chart.contextmenu': null,
        'chart.defaultcolor': 'black',
        'chart.xaxispos': 'bottom',
        'chart.yaxispos': 'left',
        'chart.crosshairs': false,
        'chart.crosshairs.color': '#333',
        'chart.crosshairs.linewidth': 1,
        'chart.crosshairs.coords': false,
        'chart.crosshairs.coords.fixed': true,
        'chart.crosshairs.coords.fadeout': false,
        'chart.crosshairs.coords.labels.x': 'X',
        'chart.crosshairs.coords.labels.y': 'Y',
        'chart.crosshairs.hline': true,
        'chart.crosshairs.vline': true,
        'chart.annotatable': false,
        'chart.annotate.color': 'black',
        'chart.line': false,
        'chart.line.linewidth': 1,
        'chart.line.colors': ['green', 'red'],
        'chart.line.shadow.color': 'rgba(0,0,0,0)',
        'chart.line.shadow.blur': 2,
        'chart.line.shadow.offsetx': 3,
        'chart.line.shadow.offsety': 3,
        'chart.line.stepped': false,
        'chart.line.visible': true,
        'chart.noaxes': false,
        'chart.noyaxis': false,
        'chart.key': null,
        'chart.key.background': 'white',
        'chart.key.position': 'graph',
        'chart.key.halign': 'right',
        'chart.key.shadow': false,
        'chart.key.shadow.color': '#666',
        'chart.key.shadow.blur': 3,
        'chart.key.shadow.offsetx': 2,
        'chart.key.shadow.offsety': 2,
        'chart.key.position.gutter.boxed': false,
        'chart.key.position.x': null,
        'chart.key.position.y': null,

        'chart.key.interactive': false,
        'chart.key.interactive.highlight.chart.fill': 'rgba(255,0,0,0.9)',
        'chart.key.interactive.highlight.label': 'rgba(255,0,0,0.2)',

        'chart.key.color.shape': 'square',
        'chart.key.rounded': true,
        'chart.key.linewidth': 1,
        'chart.key.colors': null,
        'chart.key.text.color': 'black',
        'chart.axis.color': 'black',
        'chart.zoom.factor': 1.5,
        'chart.zoom.fade.in': true,
        'chart.zoom.fade.out': true,
        'chart.zoom.hdir': 'right',
        'chart.zoom.vdir': 'down',
        'chart.zoom.frames': 25,
        'chart.zoom.delay': 16.666,
        'chart.zoom.shadow': true,
        'chart.zoom.background': true,
        'chart.zoom.action': 'zoom',
        'chart.boxplot.width': 1,
        'chart.boxplot.capped': true,
        'chart.resizable': false,
        'chart.resize.handle.background': null,
        'chart.xmin': 0,
        'chart.labels.specific.align': 'left',
        'chart.xscale': false,
        'chart.xscale.units.pre': '',
        'chart.xscale.units.post': '',
        'chart.xscale.numlabels': 10,
        'chart.xscale.formatter': null,
        'chart.xscale.decimals': 0,
        'chart.xscale.thousand': ',',
        'chart.xscale.point': '.',
        'chart.noendxtick': false,
        'chart.noendytick': true,
        'chart.events.mousemove': null,
        'chart.events.click': null,
        'chart.highlight.stroke': 'rgba(0,0,0,0)',
        'chart.highlight.fill': 'rgba(255,255,255,0.7)'
    }

    /**
     * This allows the data points to be given as dates as well as numbers. Formats supported by RGraph.parseDate() are accepted.
     */
    for (var i = 0; i < this.data.length; ++i) {
        for (var j = 0; j < this.data[i].length; ++j) {
            if (this.data[i][j] && typeof(this.data[i][j][0]) == 'string') {
                this.data[i][j][0] = RGraph.parseDate(this.data[i][j][0]);
            }
        }
    }


    /**
     * Now make the data_arr array - all the data as one big array
     */
    this.data_arr = [];

    for (var i = 0; i < this.data.length; ++i) {
        for (var j = 0; j < this.data[i].length; ++j) {
            this.data_arr.push(this.data[i][j]);
        }
    }

    // Create the $ objects so that they can be used
    for (var i = 0; i < this.data_arr.length; ++i) {
        this['$' + i] = {}
    }


    // Check for support
    if (!this.canvas) {
        alert('[SCATTER] No canvas support');
        return;
    }


    /**
     * Translate half a pixel for antialiasing purposes - but only if it hasn't beeen
     * done already
     */
    if (!this.canvas.__rgraph_aa_translated__) {
        this.context.translate(0.5, 0.5);

        this.canvas.__rgraph_aa_translated__ = true;
    }


    // Short variable names
    var RG = RGraph;
    var ca = this.canvas;
    var co = ca.getContext('2d');
    var prop = this.properties;
    var jq = jQuery;
    var pa = RG.Path;
    var win = window;
    var doc = document;
    var ma = Math;


    /**
     * "Decorate" the object with the generic effects if the effects library has been included
     */
    if (RG.Effects && typeof RG.Effects.decorate === 'function') {
        RG.Effects.decorate(this);
    }


    /**
     * A simple setter
     *
     * @param string name  The name of the property to set
     * @param string value The value of the property
     */
    this.set =
        this.Set = function (name) {
            var value = typeof arguments[1] === 'undefined' ? null : arguments[1];

            /**
             * the number of arguments is only one and it's an
             * object - parse it for configuration data and return.
             */
            if (arguments.length === 1 && typeof name === 'object') {
                RG.parseObjectStyleConfig(this, name);
                return this;
            }


            /**
             * This should be done first - prepend the propertyy name with "chart." if necessary
             */
            if (name.substr(0, 6) != 'chart.') {
                name = 'chart.' + name;
            }

            /**
             * BC for chart.xticks
             */
            if (name == 'chart.xticks') {
                name == 'chart.numxticks';
            }

            /**
             * This is here because the key expects a name of "chart.colors"
             */
            if (name == 'chart.line.colors') {
                prop['chart.colors'] = value;
            }

            /**
             * Allow compatibility with older property names
             */
            if (name == 'chart.tooltip.hotspot') {
                name = 'chart.tooltips.hotspot';
            }


            /**
             * chart.yaxispos should be left or right
             */
            if (name == 'chart.yaxispos' && value != 'left' && value != 'right') {
                alert("[SCATTER] chart.yaxispos should be left or right. You've set it to: '" + value + "' Changing it to left");
                value = 'left';
            }

            /**
             * Check for xaxispos
             */
            if (name == 'chart.xaxispos') {
                if (value != 'bottom' && value != 'center') {
                    alert('[SCATTER] (' + this.id + ') chart.xaxispos should be center or bottom. Tried to set it to: ' + value + ' Changing it to center');
                    value = 'center';
                }
            }

            prop[name.toLowerCase()] = value;

            return this;
        };


    /**
     * A simple getter
     *
     * @param string name  The name of the property to set
     */
    this.get =
        this.Get = function (name) {
            /**
             * This should be done first - prepend the property name with "chart." if necessary
             */
            if (name.substr(0, 6) != 'chart.') {
                name = 'chart.' + name;
            }

            return prop[name];
        };


    /**
     * The function you call to draw the line chart
     */
    this.draw =
        this.Draw = function () {
            // MUST be the first thing done!
            if (typeof prop['chart.background.image'] === 'string') {
                RG.DrawBackgroundImage(this);
            }


            /**
             * Fire the onbeforedraw event
             */
            RG.FireCustomEvent(this, 'onbeforedraw');


            /**
             * Parse the colors. This allows for simple gradient syntax
             */
            if (!this.colorsParsed) {
                this.parseColors();

                // Don't want to do this again
                this.colorsParsed = true;
            }


            /**
             * Stop this growing uncontrollably
             */
            this.coordsText = [];


            /**
             * This is new in May 2011 and facilitates indiviual gutter settings,
             * eg chart.gutter.left
             */
            this.gutterLeft = prop['chart.gutter.left'];
            this.gutterRight = prop['chart.gutter.right'];
            this.gutterTop = prop['chart.gutter.top'];
            this.gutterBottom = prop['chart.gutter.bottom'];

            // Go through all the data points and see if a tooltip has been given
            this.hasTooltips = false;
            var overHotspot = false;

            // Reset the coords array
            this.coords = [];

            /**
             * This facilitates the xmax, xmin and X values being dates
             */
            if (typeof(prop['chart.xmin']) == 'string') prop['chart.xmin'] = RG.parseDate(prop['chart.xmin']);
            if (typeof(prop['chart.xmax']) == 'string') prop['chart.xmax'] = RG.parseDate(prop['chart.xmax']);


            /**
             * Look for tooltips and populate chart.tooltips
             *
             * NB 26/01/2011 Updated so that chart.tooltips is ALWAYS populated
             */
            if (!RGraph.ISOLD) {
                this.Set('chart.tooltips', []);
                for (var i = 0, len = this.data.length; i < len; i += 1) {
                    for (var j = 0, len2 = this.data[i].length; j < len2; j += 1) {

                        if (this.data[i][j] && this.data[i][j][3]) {
                            prop['chart.tooltips'].push(this.data[i][j][3]);
                            this.hasTooltips = true;
                        } else {
                            prop['chart.tooltips'].push(null);
                        }
                    }
                }
            }

            // Reset the maximum value
            this.max = 0;

            // Work out the maximum Y value
            //if (prop['chart.ymax'] && prop['chart.ymax'] > 0) {
            if (typeof prop['chart.ymax'] === 'number') {

                this.max = prop['chart.ymax'];
                this.min = prop['chart.ymin'] ? prop['chart.ymin'] : 0;


                this.scale2 = RG.getScale2(this, {
                    'max': this.max,
                    'min': this.min,
                    'strict': true,
                    'scale.thousand': prop['chart.scale.thousand'],
                    'scale.point': prop['chart.scale.point'],
                    'scale.decimals': prop['chart.scale.decimals'],
                    'ylabels.count': prop['chart.ylabels.count'],
                    'scale.round': prop['chart.scale.round'],
                    'units.pre': prop['chart.units.pre'],
                    'units.post': prop['chart.units.post']
                });

                this.max = this.scale2.max;
                this.min = this.scale2.min;
                var decimals = prop['chart.scale.decimals'];

            } else {

                var i = 0;
                var j = 0;

                for (i = 0, len = this.data.length; i < len; i += 1) {
                    for (j = 0, len2 = this.data[i].length; j < len2; j += 1) {
                        if (this.data[i][j][1] != null) {
                            this.max = Math.max(this.max, typeof(this.data[i][j][1]) == 'object' ? RG.array_max(this.data[i][j][1]) : Math.abs(this.data[i][j][1]));
                        }
                    }
                }

                this.min = prop['chart.ymin'] ? prop['chart.ymin'] : 0;

                this.scale2 = RG.getScale2(this, {
                    'max': this.max,
                    'min': this.min,
                    'scale.thousand': prop['chart.scale.thousand'],
                    'scale.point': prop['chart.scale.point'],
                    'scale.decimals': prop['chart.scale.decimals'],
                    'ylabels.count': prop['chart.ylabels.count'],
                    'scale.round': prop['chart.scale.round'],
                    'units.pre': prop['chart.units.pre'],
                    'units.post': prop['chart.units.post']
                });

                this.max = this.scale2.max;
                this.min = this.scale2.min;
            }

            this.grapharea = ca.height - this.gutterTop - this.gutterBottom;


            // Progressively Draw the chart
            RG.background.Draw(this);

            /**
             * Draw any horizontal bars that have been specified
             */
            if (prop['chart.background.hbars'] && prop['chart.background.hbars'].length) {
                RG.DrawBars(this);
            }

            /**
             * Draw any vertical bars that have been specified
             */
            if (prop['chart.background.vbars'] && prop['chart.background.vbars'].length) {
                this.DrawVBars();
            }

            if (!prop['chart.noaxes']) {
                this.DrawAxes();
            }

            this.DrawLabels();

            i = 0;
            for (i = 0; i < this.data.length; ++i) {
                this.DrawMarks(i);

                // Set the shadow
                co.shadowColor = prop['chart.line.shadow.color'];
                co.shadowOffsetX = prop['chart.line.shadow.offsetx'];
                co.shadowOffsetY = prop['chart.line.shadow.offsety'];
                co.shadowBlur = prop['chart.line.shadow.blur'];

                this.DrawLine(i);

                // Turn the shadow off
                RG.NoShadow(this);
            }


            if (prop['chart.line']) {
                for (var i = 0, len = this.data.length; i < len; i += 1) {
                    this.DrawMarks(i); // Call this again so the tickmarks appear over the line
                }
            }


            /**
             * Setup the context menu if required
             */
            if (prop['chart.contextmenu']) {
                RG.ShowContext(this);
            }


            /**
             * Draw the key if necessary
             */
            if (prop['chart.key'] && prop['chart.key'].length) {
                RG.DrawKey(this, prop['chart.key'], prop['chart.line.colors']);
            }


            /**
             * Draw " above" labels if enabled
             */
            if (prop['chart.labels.above']) {
                this.DrawAboveLabels();
            }

            /**
             * Draw the "in graph" labels, using the member function, NOT the shared function in RGraph.common.core.js
             */
            this.DrawInGraphLabels(this);


            /**
             * This function enables resizing
             */
            if (prop['chart.resizable']) {
                RG.AllowResizing(this);
            }


            /**
             * This installs the event listeners
             */
            RG.InstallEventListeners(this);


            /**
             * Fire the onfirstdraw event
             */
            if (this.firstDraw) {
                RG.fireCustomEvent(this, 'onfirstdraw');
                this.firstDraw = false;
                this.firstDrawFunc();
            }


            /**
             * Fire the RGraph ondraw event
             */
            RG.FireCustomEvent(this, 'ondraw');


            return this;
        }


    /**
     * Draws the axes of the scatter graph
     */
    this.drawAxes =
        this.DrawAxes = function () {
            var graphHeight = ca.height - this.gutterTop - this.gutterBottom;

            co.beginPath();
            co.strokeStyle = prop['chart.axis.color'];
            co.lineWidth = (prop['chart.axis.linewidth'] || 1) + 0.001; // Strange Chrome bug

            // Draw the Y axis
            if (prop['chart.noyaxis'] == false) {
                if (prop['chart.yaxispos'] == 'left') {
                    co.moveTo(this.gutterLeft, this.gutterTop);
                    co.lineTo(this.gutterLeft, ca.height - this.gutterBottom);
                } else {
                    co.moveTo(ca.width - this.gutterRight, this.gutterTop);
                    co.lineTo(ca.width - this.gutterRight, ca.height - this.gutterBottom);
                }
            }


            // Draw the X axis
            if (prop['chart.xaxis']) {
                if (prop['chart.xaxispos'] == 'center') {
                    co.moveTo(this.gutterLeft, Math.round(this.gutterTop + ((ca.height - this.gutterTop - this.gutterBottom) / 2)));
                    co.lineTo(ca.width - this.gutterRight, Math.round(this.gutterTop + ((ca.height - this.gutterTop - this.gutterBottom) / 2)));
                } else {
                    co.moveTo(this.gutterLeft, ca.height - this.gutterBottom);
                    co.lineTo(ca.width - this.gutterRight, ca.height - this.gutterBottom);
                }
            }

            // Draw the Y tickmarks
            if (prop['chart.noyaxis'] == false) {
                var numyticks = prop['chart.numyticks'];

                //for (y=this.gutterTop; y < ca.height - this.gutterBottom + (prop['chart.xaxispos'] == 'center' ? 1 : 0) ; y+=(graphHeight / numyticks)) {
                for (i = 0; i < numyticks; ++i) {

                    var y = ((ca.height - this.gutterTop - this.gutterBottom) / numyticks) * i;
                    y = y + this.gutterTop;

                    if (prop['chart.xaxispos'] == 'center' && i == (numyticks / 2)) {
                        continue;
                    }

                    if (prop['chart.yaxispos'] == 'left') {
                        co.moveTo(this.gutterLeft, Math.round(y));
                        co.lineTo(this.gutterLeft - 3, Math.round(y));
                    } else {
                        co.moveTo(ca.width - this.gutterRight + 3, Math.round(y));
                        co.lineTo(ca.width - this.gutterRight, Math.round(y));
                    }
                }

                /**
                 * Draw the end Y tickmark if the X axis is in the centre
                 */
                if (prop['chart.numyticks'] > 0) {
                    if (prop['chart.xaxispos'] == 'center' && prop['chart.yaxispos'] == 'left') {
                        co.moveTo(this.gutterLeft, Math.round(ca.height - this.gutterBottom));
                        co.lineTo(this.gutterLeft - 3, Math.round(ca.height - this.gutterBottom));
                    } else if (prop['chart.xaxispos'] == 'center') {
                        co.moveTo(ca.width - this.gutterRight + 3, Math.round(ca.height - this.gutterBottom));
                        co.lineTo(ca.width - this.gutterRight, Math.round(ca.height - this.gutterBottom));
                    }
                }

                /**
                 * Draw an extra tick if the X axis isn't being shown
                 */
                if (prop['chart.xaxis'] == false && prop['chart.yaxispos'] == 'left') {
                    co.moveTo(this.gutterLeft, Math.round(ca.height - this.gutterBottom));
                    co.lineTo(this.gutterLeft - 3, Math.round(ca.height - this.gutterBottom));
                } else if (prop['chart.xaxis'] == false && prop['chart.yaxispos'] == 'right') {
                    co.moveTo(ca.width - this.gutterRight, Math.round(ca.height - this.gutterBottom));
                    co.lineTo(ca.width - this.gutterRight + 3, Math.round(ca.height - this.gutterBottom));
                }
            }


            /**
             * Draw the X tickmarks
             */
            if (prop['chart.numxticks'] > 0 && prop['chart.xaxis']) {

                var x = 0;
                var y = (prop['chart.xaxispos'] == 'center') ? this.gutterTop + (this.grapharea / 2) : (ca.height - this.gutterBottom);
                this.xTickGap = (prop['chart.labels'] && prop['chart.labels'].length) ? ((ca.width - this.gutterLeft - this.gutterRight ) / prop['chart.labels'].length) : (ca.width - this.gutterLeft - this.gutterRight) / 10;

                /**
                 * This allows the number of X tickmarks to be specified
                 */
                if (typeof(prop['chart.numxticks']) == 'number') {
                    this.xTickGap = (ca.width - this.gutterLeft - this.gutterRight) / prop['chart.numxticks'];
                }


                for (x = (this.gutterLeft + (prop['chart.yaxispos'] == 'left' && prop['chart.noyaxis'] == false ? this.xTickGap : 0) );
                     x <= (ca.width - this.gutterRight - (prop['chart.yaxispos'] == 'left' || prop['chart.noyaxis'] == true ? -1 : 1));
                     x += this.xTickGap) {

                    if (prop['chart.yaxispos'] == 'left' && prop['chart.noendxtick'] == true && x == (ca.width - this.gutterRight)) {
                        continue;
                    } else if (prop['chart.yaxispos'] == 'right' && prop['chart.noendxtick'] == true && x == this.gutterLeft) {
                        continue;
                    }

                    co.moveTo(Math.round(x), y - (prop['chart.xaxispos'] == 'center' ? 3 : 0));
                    co.lineTo(Math.round(x), y + 3);
                }

            }

            co.stroke();

            /**
             * Reset the linewidth back to one
             */
            co.lineWidth = 1;
        };


    /**
     * Draws the labels on the scatter graph
     */
    this.drawLabels =
        this.DrawLabels = function () {
            co.fillStyle = prop['chart.text.color'];
            var font = prop['chart.text.font'];
            var xMin = prop['chart.xmin'];
            var xMax = prop['chart.xmax'];
            var yMax = this.scale2.max;
            var yMin = prop['chart.ymin'] ? prop['chart.ymin'] : 0;
            var text_size = prop['chart.text.size'];
            var units_pre = prop['chart.units.pre'];
            var units_post = prop['chart.units.post'];
            var numYLabels = prop['chart.ylabels.count'];
            var invert = prop['chart.ylabels.invert'];
            var inside = prop['chart.ylabels.inside'];
            var context = co;
            var canvas = ca;
            var boxed = false;

            this.halfTextHeight = text_size / 2;


            this.halfGraphHeight = (ca.height - this.gutterTop - this.gutterBottom) / 2;

            /**
             * Draw the Y yaxis labels, be it at the top or center
             */
            if (prop['chart.ylabels']) {

                var xPos = prop['chart.yaxispos'] == 'left' ? this.gutterLeft - 5 : ca.width - this.gutterRight + 5;
                var align = prop['chart.yaxispos'] == 'right' ? 'left' : 'right';

                /**
                 * Now change the two things above if chart.ylabels.inside is specified
                 */
                if (inside) {
                    if (prop['chart.yaxispos'] == 'left') {
                        xPos = prop['chart.gutter.left'] + 5;
                        align = 'left';
                        boxed = true;
                    } else {
                        xPos = ca.width - prop['chart.gutter.right'] - 5;
                        align = 'right';
                        boxed = true;
                    }
                }

                if (prop['chart.xaxispos'] == 'center') {


                    /**
                     * Specific Y labels
                     */
                    if (typeof(prop['chart.ylabels.specific']) == 'object' && prop['chart.ylabels.specific'] != null && prop['chart.ylabels.specific'].length) {

                        var labels = prop['chart.ylabels.specific'];

                        if (prop['chart.ymin'] > 0) {
                            labels = [];
                            for (var i = 0; i < (prop['chart.ylabels.specific'].length - 1); ++i) {
                                labels.push(prop['chart.ylabels.specific'][i]);
                            }
                        }

                        for (var i = 0; i < labels.length; ++i) {
                            var y = this.gutterTop + (i * (this.grapharea / (labels.length * 2) ) );
                            RG.Text2(this, {
                                'font': font,
                                'size': text_size,
                                'x': xPos,
                                'y': y,
                                'text': labels[i],
                                'valign': 'center',
                                'halign': align,
                                'bounding': boxed,
                                'tag': 'labels.specific'
                            });
                        }

                        var reversed_labels = RG.array_reverse(labels);

                        for (var i = 0; i < reversed_labels.length; ++i) {
                            var y = this.gutterTop + (this.grapharea / 2) + ((i + 1) * (this.grapharea / (labels.length * 2) ) );
                            RG.Text2(this, {
                                'font': font,
                                'size': text_size,
                                'x': xPos,
                                'y': y,
                                'text': reversed_labels[i],
                                'valign': 'center',
                                'halign': align,
                                'bounding': boxed,
                                'tag': 'labels.specific'
                            });
                        }

                        /**
                         * Draw the center label if chart.ymin is specified
                         */
                        if (prop['chart.ymin'] != 0) {
                            RG.Text2(this, {
                                'font': font,
                                'size': text_size,
                                'x': xPos,
                                'y': (this.grapharea / 2) + this.gutterTop,
                                'text': prop['chart.ylabels.specific'][prop['chart.ylabels.specific'].length - 1],
                                'valign': 'center',
                                'halign': align,
                                'bounding': boxed,
                                'tag': 'labels.specific'
                            });
                        }
                    }


                    if (!prop['chart.ylabels.specific'] && typeof numYLabels == 'number') {

                        /**
                         * Draw the top half
                         */
                        for (var i = 0, len = this.scale2.labels.length; i < len; i += 1) {

                            //var value = ((this.max - this.min)/ numYLabels) * (i+1);
                            //value  = (invert ? this.max - value : value);
                            //if (!invert) value += this.min;
                            //value = value.toFixed(prop['chart.scale.decimals']);

                            if (!invert) {
                                RG.Text2(this, {
                                    'font': font,
                                    'size': text_size,
                                    'x': xPos,
                                    'y': this.gutterTop + this.halfGraphHeight - (((i + 1) / numYLabels) * this.halfGraphHeight),
                                    'valign': 'center',
                                    'halign': align,
                                    'bounding': boxed,
                                    'boundingFill': 'white',
                                    'text': this.scale2.labels[i],
                                    'tag': 'scale'
                                });
                            } else {
                                RG.Text2(this, {
                                    'font': font,
                                    'size': text_size,
                                    'x': xPos,
                                    'y': this.gutterTop + this.halfGraphHeight - ((i / numYLabels) * this.halfGraphHeight),
                                    'valign': 'center',
                                    'halign': align,
                                    'bounding': boxed,
                                    'boundingFill': 'white',
                                    'text': this.scale2.labels[this.scale2.labels.length - (i + 1)],
                                    'tag': 'scale'
                                });
                            }
                        }

                        /**
                         * Draw the bottom half
                         */
                        for (var i = 0, len = this.scale2.labels.length; i < len; i += 1) {

                            //var value = (((this.max - this.min)/ numYLabels) * i) + this.min;
                            //    value = (invert ? value : this.max - (value - this.min)).toFixed(prop['chart.scale.decimals']);

                            if (!invert) {
                                RG.Text2(this, {
                                    'font': font,
                                    'size': text_size,
                                    'x': xPos,
                                    'y': this.gutterTop + this.halfGraphHeight + this.halfGraphHeight - ((i / numYLabels) * this.halfGraphHeight),
                                    'valign': 'center',
                                    'halign': align,
                                    'bounding': boxed,
                                    'boundingFill': 'white',
                                    'text': '-' + this.scale2.labels[len - (i + 1)],
                                    'tag': 'scale'
                                });
                            } else {

                                // This ensures that the center label isn't drawn twice
                                if (i == (len - 1) && invert) {
                                    continue;
                                }

                                RG.Text2(this, {
                                    'font': font,
                                    'size': text_size,
                                    'x': xPos,
                                    'y': this.gutterTop + this.halfGraphHeight + this.halfGraphHeight - (((i + 1) / numYLabels) * this.halfGraphHeight),
                                    'valign': 'center',
                                    'halign': align,
                                    'bounding': boxed,
                                    'boundingFill': 'white',
                                    'text': '-' + this.scale2.labels[i],
                                    'tag': 'scale'
                                });
                            }
                        }


                        // If ymin is specified draw that
                        if (!invert && yMin > 0) {
                            RG.Text2(this, {
                                'font': font,
                                'size': text_size,
                                'x': xPos,
                                'y': this.gutterTop + this.halfGraphHeight,
                                'valign': 'center',
                                'halign': align,
                                'bounding': boxed,
                                'boundingFill': 'white',
                                'text': RG.number_format(this, yMin.toFixed(prop['chart.scale.decimals']), units_pre, units_post),
                                'tag': 'scale'
                            });
                        }

                        if (invert) {
                            RG.Text2(this, {
                                'font': font,
                                'size': text_size,
                                'x': xPos,
                                'y': this.gutterTop,
                                'valign': 'center',
                                'halign': align,
                                'bounding': boxed,
                                'boundingFill': 'white',
                                'text': RG.number_format(this, yMin.toFixed(prop['chart.scale.decimals']), units_pre, units_post),
                                'tag': 'scale'
                            });
                            RG.Text2(this, {
                                'font': font,
                                'size': text_size,
                                'x': xPos,
                                'y': this.gutterTop + (this.halfGraphHeight * 2),
                                'valign': 'center',
                                'halign': align,
                                'bounding': boxed,
                                'boundingFill': 'white',
                                'text': '-' + RG.number_format(this, yMin.toFixed(prop['chart.scale.decimals']), units_pre, units_post),
                                'tag': 'scale'
                            });
                        }
                    }

                    // X axis at the bottom
                } else {

                    var xPos = prop['chart.yaxispos'] == 'left' ? this.gutterLeft - 5 : ca.width - this.gutterRight + 5;
                    var align = prop['chart.yaxispos'] == 'right' ? 'left' : 'right';

                    if (inside) {
                        if (prop['chart.yaxispos'] == 'left') {
                            xPos = prop['chart.gutter.left'] + 5;
                            align = 'left';
                            boxed = true;
                        } else {
                            xPos = ca.width - obj.gutterRight - 5;
                            align = 'right';
                            boxed = true;
                        }
                    }

                    /**
                     * Specific Y labels
                     */
                    if (typeof prop['chart.ylabels.specific'] == 'object' && prop['chart.ylabels.specific']) {

                        var labels = prop['chart.ylabels.specific'];

                        // Lose the last label
                        if (prop['chart.ymin'] > 9999) {
                            labels = [];
                            for (var i = 0; i < (prop['chart.ylabels.specific'].length - 1); ++i) {
                                labels.push(prop['chart.ylabels.specific'][i]);
                            }
                        }

                        for (var i = 0, len = labels.length; i < len; i += 1) {

                            var y = this.gutterTop + (i * (this.grapharea / (len - 1)) );

                            RG.Text2(this, {
                                'font': font,
                                'size': text_size,
                                'x': xPos,
                                'y': y,
                                'text': labels[i],
                                'halign': align,
                                'valign': 'center',
                                'bounding': boxed,
                                'tag': 'scale'
                            });
                        }

                        /**
                         * X axis at the bottom
                         */
                    } else {

                        if (typeof(numYLabels) == 'number') {

                            if (invert) {

                                for (var i = 0; i < numYLabels; ++i) {

                                    //var value = ((this.max - this.min)/ numYLabels) * i;
                                    //    value = value.toFixed(prop['chart.scale.decimals']);
                                    var interval = (ca.height - this.gutterTop - this.gutterBottom) / numYLabels;

                                    RG.Text2(this, {
                                        'font': font,
                                        'size': text_size,
                                        'x': xPos,
                                        'y': this.gutterTop + ((i + 1) * interval),
                                        'valign': 'center',
                                        'halign': align,
                                        'bounding': boxed,
                                        'boundingFill': 'white',
                                        'text': this.scale2.labels[i],
                                        'tag': 'scale'
                                    });
                                }


                                // No X axis being shown and there's no ymin. If ymin IS set its added further down
                                if (!prop['chart.xaxis'] && !prop['chart.ymin']) {
                                    RG.Text2(this, {
                                        'font': font,
                                        'size': text_size,
                                        'x': xPos,
                                        'y': this.gutterTop,
                                        'valign': 'center',
                                        'halign': align,
                                        'bounding': boxed,
                                        'boundingFill': 'white',
                                        'text': RG.number_format(this, (this.min).toFixed(prop['chart.scale.decimals']), units_pre, units_post),
                                        'tag': 'scale'
                                    });
                                }

                            } else {
                                for (var i = 0, len = this.scale2.labels.length; i < len; i += 1) {

                                    //var value = ((this.max - this.min)/ numYLabels) * (i+1);
                                    //    value  = (invert ? this.max - value : value);
                                    //    if (!invert) value += this.min;
                                    //    value = value.toFixed(prop['chart.scale.decimals']);

                                    RG.Text2(this, {
                                        'font': font,
                                        'size': text_size,
                                        'x': xPos,
                                        'y': this.gutterTop + this.grapharea - (((i + 1) / this.scale2.labels.length) * this.grapharea),
                                        'valign': 'center',
                                        'halign': align,
                                        'bounding': boxed,
                                        'boundingFill': 'white',
                                        'text': this.scale2.labels[i],
                                        'tag': 'scale'
                                    });
                                }

                                if (!prop['chart.xaxis'] && prop['chart.ymin'] == 0) {
                                    RG.Text2(this, {
                                        'font': font,
                                        'size': text_size,
                                        'x': xPos,
                                        'y': ca.height - this.gutterBottom,
                                        'valign': 'center',
                                        'halign': align,
                                        'bounding': boxed,
                                        'boundingFill': 'white',
                                        'text': RG.number_format(this, (0).toFixed(prop['chart.scale.decimals']), units_pre, units_post),
                                        'tag': 'scale'
                                    });
                                }
                            }
                        }

                        if (prop['chart.ymin'] && !invert) {
                            RG.Text2(this, {
                                'font': font,
                                'size': text_size,
                                'x': xPos,
                                'y': ca.height - this.gutterBottom,
                                'valign': 'center',
                                'halign': align,
                                'bounding': boxed,
                                'boundingFill': 'white',
                                'text': RG.number_format(this, prop['chart.ymin'].toFixed(prop['chart.scale.decimals']), units_pre, units_post),
                                'tag': 'scale'
                            });
                        } else if (invert) {
                            RG.Text2(this, {
                                'font': font,
                                'size': text_size,
                                'x': xPos,
                                'y': this.gutterTop,
                                'valign': 'center',
                                'halign': align,
                                'bounding': boxed,
                                'boundingFill': 'white',
                                'text': RG.number_format(this, prop['chart.ymin'].toFixed(prop['chart.scale.decimals']), units_pre, units_post),
                                'tag': 'scale'
                            });

                        }
                    }
                }
            }


            /**
             * Draw an X scale
             */
            if (prop['chart.xscale']) {

                var numXLabels = prop['chart.xscale.numlabels'];
                var y = ca.height - this.gutterBottom + 5 + (text_size / 2);
                var units_pre_x = prop['chart.xscale.units.pre'];
                var units_post_x = prop['chart.xscale.units.post'];
                var decimals = prop['chart.xscale.decimals'];
                var point = prop['chart.xscale.point'];
                var thousand = prop['chart.xscale.thousand'];


                if (!prop['chart.xmax']) {

                    var xmax = 0;
                    var xmin = prop['chart.xmin'];

                    for (var ds = 0, len = this.data.length; ds < len; ds += 1) {
                        for (var point = 0, len2 = this.data[ds].length; point < len2; point += 1) {
                            xmax = Math.max(xmax, this.data[ds][point][0]);
                        }
                    }
                } else {
                    xmax = prop['chart.xmax'];
                    xmin = prop['chart.xmin']
                }

                this.xscale2 = RG.getScale2(this, {
                    'max': xmax,
                    'min': xmin,
                    'scale.decimals': decimals,
                    'scale.point': point,
                    'scale.thousand': thousand,
                    'units.pre': units_pre_x,
                    'units.post': units_post_x,
                    'ylabels.count': numXLabels,
                    'strict': true
                });

                this.Set('chart.xmax', this.xscale2.max);
                var interval = (ca.width - this.gutterLeft - this.gutterRight) / this.xscale2.labels.length;

                for (var i = 0, len = this.xscale2.labels.length; i < len; i += 1) {

                    var num = ( (prop['chart.xmax'] - prop['chart.xmin']) * ((i + 1) / numXLabels)) + (xmin || 0);
                    var x = this.gutterLeft + ((i + 1) * interval);

                    if (typeof(prop['chart.xscale.formatter']) == 'function') {
                        var text = String(prop['chart.xscale.formatter'](this, num));

                    } else {

                        var text = this.xscale2.labels[i]
                    }

                    RG.Text2(this, {
                        'font': font,
                        'size': text_size,
                        'x': x,
                        'y': y,
                        'valign': 'center',
                        'halign': 'center',
                        'text': text,
                        'tag': 'xscale'
                    });
                }

                // If the Y axis is on the right hand side - draw the left most X label
                if (prop['chart.yaxispos'] == 'right') {
                    RG.Text2(this, {
                        'font': font,
                        'size': text_size,
                        'x': this.gutterLeft,
                        'y': y,
                        'valign': 'center',
                        'halign': 'center',
                        'text': String(prop['chart.xmin']),
                        'tag': 'xscale'
                    });
                }

                /**
                 * Draw X labels
                 */
            } else {

                // Put the text on the X axis
                var graphArea = ca.width - this.gutterLeft - this.gutterRight;
                var xInterval = graphArea / prop['chart.labels'].length;
                var xPos = this.gutterLeft;
                var yPos = (ca.height - this.gutterBottom) + 3;
                var labels = prop['chart.labels'];

                /**
                 * Text angle
                 */
                var angle = 0;
                var valign = 'top';
                var halign = 'center';

                if (prop['chart.text.angle'] > 0) {
                    angle = -1 * prop['chart.text.angle'];
                    valign = 'center';
                    halign = 'right';
                    yPos += 10;
                }

                for (i = 0; i < labels.length; ++i) {

                    if (typeof(labels[i]) == 'object') {

                        if (prop['chart.labels.specific.align'] == 'center') {
                            var rightEdge = 0;

                            if (labels[i + 1] && labels[i + 1][1]) {
                                rightEdge = labels[i + 1][1];
                            } else {
                                rightEdge = prop['chart.xmax'];
                            }

                            var offset = (this.getXCoord(rightEdge) - this.getXCoord(labels[i][1])) / 2;

                        } else {
                            var offset = 5;
                        }


                        RG.Text2(this, {
                            'font': font,
                            'size': prop['chart.text.size'],
                            'x': this.getXCoord(labels[i][1]) + offset,
                            'y': yPos,
                            'valign': valign,
                            'halign': angle != 0 ? 'right' : (prop['chart.labels.specific.align'] == 'center' ? 'center' : 'left'),
                            'text': String(labels[i][0]),
                            'angle': angle,
                            'marker': false,
                            'tag': 'labels.specific'
                        });

                        /**
                         * Draw the gray indicator line
                         */
                        co.beginPath();
                        co.strokeStyle = '#bbb';
                        co.moveTo(Math.round(this.gutterLeft + (graphArea * ((labels[i][1] - xMin) / (prop['chart.xmax'] - xMin)))), ca.height - this.gutterBottom);
                        co.lineTo(Math.round(this.gutterLeft + (graphArea * ((labels[i][1] - xMin) / (prop['chart.xmax'] - xMin)))), ca.height - this.gutterBottom + 20);
                        co.stroke();

                    } else {

                        RG.Text2(this, {
                            'font': font,
                            'size': prop['chart.text.size'],
                            'x': xPos + (xInterval / 2),
                            'y': yPos,
                            'valign': valign,
                            'halign': halign,
                            'text': String(labels[i]),
                            'angle': angle,
                            'tag': 'labels'
                        });
                    }

                    // Do this for the next time around
                    xPos += xInterval;
                }

                /**
                 * Draw the final indicator line
                 */
                if (typeof(labels[0]) == 'object') {
                    co.beginPath();
                    co.strokeStyle = '#bbb';
                    co.moveTo(this.gutterLeft + graphArea, ca.height - this.gutterBottom);
                    co.lineTo(this.gutterLeft + graphArea, ca.height - this.gutterBottom + 20);
                    co.stroke();
                }
            }
        };


    /**
     * Draws the actual scatter graph marks
     *
     * @param i integer The dataset index
     */
    this.drawMarks =
        this.DrawMarks = function (i) {
            /**
             *  Reset the coords array
             */
            this.coords[i] = [];

            /**
             * Plot the values
             */
            var xmax = prop['chart.xmax'];
            var default_color = prop['chart.defaultcolor'];

            for (var j = 0, len = this.data[i].length; j < len; j += 1) {
                /**
                 * This is here because tooltips are optional
                 */
                var data_point = this.data[i];

                var xCoord = data_point[j][0];
                var yCoord = data_point[j][1];
                var color = data_point[j][2] ? data_point[j][2] : default_color;
                var tooltip = (data_point[j] && data_point[j][3]) ? data_point[j][3] : null;


                this.DrawMark(
                    i,
                    xCoord,
                    yCoord,
                    xmax,
                    this.scale2.max,
                    color,
                    tooltip,
                    this.coords[i],
                    data_point,
                    j
                );
            }
        };


    /**
     * Draws a single scatter mark
     */
    this.drawMark =
        this.DrawMark = function (data_set_index, x, y, xMax, yMax, color, tooltip, coords, data, data_index) {
            var tickmarks = prop['chart.tickmarks'];
            var tickSize = prop['chart.ticksize'];
            var xMin = prop['chart.xmin'];
            var x = ((x - xMin) / (xMax - xMin)) * (ca.width - this.gutterLeft - this.gutterRight);
            var originalX = x;
            var originalY = y;

            /**
             * This allows chart.tickmarks to be an array
             */
            if (tickmarks && typeof(tickmarks) == 'object') {
                tickmarks = tickmarks[data_set_index];
            }


            /**
             * This allows chart.ticksize to be an array
             */
            if (typeof(tickSize) == 'object') {
                var tickSize = tickSize[data_set_index];
                var halfTickSize = tickSize / 2;
            } else {
                var halfTickSize = tickSize / 2;
            }


            /**
             * This bit is for boxplots only
             */
            if (y
                && typeof(y) == 'object'
                && typeof(y[0]) == 'number'
                && typeof(y[1]) == 'number'
                && typeof(y[2]) == 'number'
                && typeof(y[3]) == 'number'
                && typeof(y[4]) == 'number'
            ) {

                //var yMin = prop['chart.ymin'] ? prop['chart.ymin'] : 0;
                this.Set('chart.boxplot', true);
                //this.graphheight = ca.height - this.gutterTop - this.gutterBottom;

                //if (prop['chart.xaxispos'] == 'center') {
                //    this.graphheight /= 2;
                //}


                var y0 = this.getYCoord(y[0]);//(this.graphheight) - ((y[4] - yMin) / (yMax - yMin)) * (this.graphheight);
                var y1 = this.getYCoord(y[1]);//(this.graphheight) - ((y[3] - yMin) / (yMax - yMin)) * (this.graphheight);
                var y2 = this.getYCoord(y[2]);//(this.graphheight) - ((y[2] - yMin) / (yMax - yMin)) * (this.graphheight);
                var y3 = this.getYCoord(y[3]);//(this.graphheight) - ((y[1] - yMin) / (yMax - yMin)) * (this.graphheight);
                var y4 = this.getYCoord(y[4]);//(this.graphheight) - ((y[0] - yMin) / (yMax - yMin)) * (this.graphheight);


                var col1 = y[5];
                var col2 = y[6];

                var boxWidth = typeof(y[7]) == 'number' ? y[7] : prop['chart.boxplot.width'];

                //var y = this.graphheight - y2;

            } else {

                /**
                 * The new way of getting the Y coord. This function (should) handle everything
                 */
                var yCoord = this.getYCoord(y);
            }

            //if (prop['chart.xaxispos'] == 'center'] {
            //    y /= 2;
            //    y += this.halfGraphHeight;
            //    
            //    if (prop['chart.ylabels.invert']) {
            //        p(y)
            //    }
            //}

            /**
             * Account for the X axis being at the centre
             */
                // This is so that points are on the graph, and not the gutter - which helps
            x += this.gutterLeft;
            //y = ca.height - this.gutterBottom - y;


            co.beginPath();

            // Color
            co.strokeStyle = color;


            /**
             * Boxplots
             */
            if (prop['chart.boxplot']) {

                // boxWidth is a scale value, so convert it to a pixel vlue
                boxWidth = (boxWidth / prop['chart.xmax']) * (ca.width - this.gutterLeft - this.gutterRight);

                var halfBoxWidth = boxWidth / 2;

                if (prop['chart.line.visible']) {
                    co.beginPath();
                    co.strokeRect(x - halfBoxWidth, y1, boxWidth, y3 - y1);

                    // Draw the upper coloured box if a value is specified
                    if (col1) {
                        co.fillStyle = col1;
                        co.fillRect(x - halfBoxWidth, y1, boxWidth, y2 - y1);
                    }

                    // Draw the lower coloured box if a value is specified
                    if (col2) {
                        co.fillStyle = col2;
                        co.fillRect(x - halfBoxWidth, y2, boxWidth, y3 - y2);
                    }
                    co.stroke();

                    // Now draw the whiskers
                    co.beginPath();
                    if (prop['chart.boxplot.capped']) {
                        co.moveTo(x - halfBoxWidth, Math.round(y0));
                        co.lineTo(x + halfBoxWidth, Math.round(y0));
                    }

                    co.moveTo(Math.round(x), y0);
                    co.lineTo(Math.round(x), y1);

                    if (prop['chart.boxplot.capped']) {
                        co.moveTo(x - halfBoxWidth, Math.round(y4));
                        co.lineTo(x + halfBoxWidth, Math.round(y4));
                    }

                    co.moveTo(Math.round(x), y4);
                    co.lineTo(Math.round(x), y3);

                    co.stroke();
                }
            }


            /**
             * Draw the tickmark, but not for boxplots
             */
            if (prop['chart.line.visible'] && typeof(y) == 'number' && !y0 && !y1 && !y2 && !y3 && !y4) {

                if (tickmarks == 'circle') {
                    co.arc(x, yCoord, halfTickSize, 0, 6.28, 0);
                    co.fillStyle = color;
                    co.fill();

                } else if (tickmarks == 'plus') {

                    co.moveTo(x, yCoord - halfTickSize);
                    co.lineTo(x, yCoord + halfTickSize);
                    co.moveTo(x - halfTickSize, yCoord);
                    co.lineTo(x + halfTickSize, yCoord);
                    co.stroke();

                } else if (tickmarks == 'square') {
                    co.strokeStyle = color;
                    co.fillStyle = color;
                    co.fillRect(
                        x - halfTickSize,
                        yCoord - halfTickSize,
                        tickSize,
                        tickSize
                    );
                    //co.fill();

                } else if (tickmarks == 'cross') {

                    co.moveTo(x - halfTickSize, yCoord - halfTickSize);
                    co.lineTo(x + halfTickSize, yCoord + halfTickSize);
                    co.moveTo(x + halfTickSize, yCoord - halfTickSize);
                    co.lineTo(x - halfTickSize, yCoord + halfTickSize);

                    co.stroke();

                    /**
                     * Diamond shape tickmarks
                     */
                } else if (tickmarks == 'diamond') {
                    co.fillStyle = co.strokeStyle;

                    co.moveTo(x, yCoord - halfTickSize);
                    co.lineTo(x + halfTickSize, yCoord);
                    co.lineTo(x, yCoord + halfTickSize);
                    co.lineTo(x - halfTickSize, yCoord);
                    co.lineTo(x, yCoord - halfTickSize);

                    co.fill();
                    co.stroke();

                    /**
                     * Custom tickmark style
                     */
                } else if (typeof(tickmarks) == 'function') {

                    var graphWidth = ca.width - this.gutterLeft - this.gutterRight
                    var graphheight = ca.height - this.gutterTop - this.gutterBottom;
                    var xVal = ((x - this.gutterLeft) / graphWidth) * xMax;
                    var yVal = ((graphheight - (yCoord - this.gutterTop)) / graphheight) * yMax;

                    tickmarks(this, data, x, yCoord, xVal, yVal, xMax, yMax, color, data_set_index, data_index)


                    /**
                     * Image based tickmark
                     */
                    // lineData, xPos, yPos, color, isShadow, prevX, prevY, tickmarks, index
                } else if (
                    typeof tickmarks === 'string' &&
                    (
                        tickmarks.substr(0, 6) === 'image:' ||
                        tickmarks.substr(0, 5) === 'data:' ||
                        tickmarks.substr(0, 1) === '/' ||
                        tickmarks.substr(0, 3) === '../' ||
                        tickmarks.substr(0, 7) === 'images/'
                    )
                ) {

                    var img = new Image();

                    if (tickmarks.substr(0, 6) === 'image:') {
                        img.src = tickmarks.substr(6);
                    } else {
                        img.src = tickmarks;
                    }


                    img.onload = function () {
                        if (prop['chart.tickmarks.image.halign'] === 'center') x -= (this.width / 2);
                        if (prop['chart.tickmarks.image.halign'] === 'right')  x -= this.width;

                        if (prop['chart.tickmarks.image.valign'] === 'center') yCoord -= (this.height / 2);
                        if (prop['chart.tickmarks.image.valign'] === 'bottom') yCoord -= this.height;

                        x += prop['chart.tickmarks.image.offsetx'];
                        yCoord += prop['chart.tickmarks.image.offsety'];

                        co.drawImage(this, x, yCoord);
                    }


                    /**
                     * No tickmarks
                     */
                } else if (tickmarks === null) {

                    /**
                     * Unknown tickmark type
                     */
                } else {
                    alert('[SCATTER] (' + this.id + ') Unknown tickmark style: ' + tickmarks);
                }
            }

            /**
             * Add the tickmark to the coords array
             */
            if (prop['chart.boxplot']
                && typeof y0 === 'number'
                && typeof y1 === 'number'
                && typeof y2 === 'number'
                && typeof y3 === 'number'
                && typeof y4 === 'number') {

                x = [x - halfBoxWidth, x + halfBoxWidth];
                yCoord = [y0, y1, y2, y3, y4];
            }

            coords.push([x, yCoord, tooltip]);
        };


    /**
     * Draws an optional line connecting the tick marks.
     *
     * @param i The index of the dataset to use
     */
    this.drawLine =
        this.DrawLine = function (i) {
            if (typeof(prop['chart.line.visible']) == 'boolean' && prop['chart.line.visible'] == false) {
                return;
            }

            if (prop['chart.line'] && this.coords[i].length >= 2) {

                if (prop['chart.line.dash'] && typeof co.setLineDash === 'function') {
                    co.setLineDash(prop['chart.line.dash']);
                }

                co.lineCap = 'round';
                co.lineJoin = 'round';
                co.lineWidth = this.getLineWidth(i);// i is the index of the set of coordinates
                co.strokeStyle = prop['chart.line.colors'][i];

                co.beginPath();

                var prevY = null;
                var currY = null;

                for (var j = 0, len = this.coords[i].length; j < len; j += 1) {


                    var xPos = this.coords[i][j][0];
                    var yPos = this.coords[i][j][1];

                    if (j > 0) prevY = this.coords[i][j - 1][1];
                    currY = yPos;

                    if (j == 0 || RG.is_null(prevY) || RG.is_null(currY)) {
                        co.moveTo(xPos, yPos);
                    } else {

                        // Stepped?
                        var stepped = prop['chart.line.stepped'];

                        if ((typeof stepped == 'boolean' && stepped)
                            || (typeof stepped == 'object' && stepped[i])
                        ) {
                            co.lineTo(this.coords[i][j][0], this.coords[i][j - 1][1]);
                        }

                        co.lineTo(xPos, yPos);
                    }
                }
                co.stroke();

                /**
                 * Set the linedash back to the default
                 */
                if (prop['chart.line.dash'] && typeof co.setLineDash === 'function') {
                    co.setLineDash([1, 0]);
                }
            }

            /**
             * Set the linewidth back to 1
             */
            co.lineWidth = 1;
        };


    /**
     * Returns the linewidth
     *
     * @param number i The index of the "line" (/set of coordinates)
     */
    this.getLineWidth =
        this.GetLineWidth = function (i) {
            var linewidth = prop['chart.line.linewidth'];

            if (typeof linewidth == 'number') {
                return linewidth;

            } else if (typeof linewidth == 'object') {
                if (linewidth[i]) {
                    return linewidth[i];
                } else {
                    return linewidth[0];
                }

                alert('[SCATTER] Error! chart.linewidth should be a single number or an array of one or more numbers');
            }
        };


    /**
     * Draws vertical bars. Line chart doesn't use a horizontal scale, hence this function
     * is not common
     */
    this.drawVBars =
        this.DrawVBars = function () {

            var vbars = prop['chart.background.vbars'];
            var graphWidth = ca.width - this.gutterLeft - this.gutterRight;

            if (vbars) {

                var xmax = prop['chart.xmax'];
                var xmin = prop['chart.xmin'];

                for (var i = 0, len = vbars.length; i < len; i += 1) {

                    var key = i;
                    var value = vbars[key];

                    /**
                     * Accomodate date/time values
                     */
                    if (typeof value[0] == 'string') value[0] = RG.parseDate(value[0]);
                    if (typeof value[1] == 'string') value[1] = RG.parseDate(value[1]) - value[0];

                    var x = (( (value[0] - xmin) / (xmax - xmin) ) * graphWidth) + this.gutterLeft;
                    var width = (value[1] / (xmax - xmin) ) * graphWidth;

                    co.fillStyle = value[2];
                    co.fillRect(x, this.gutterTop, width, (ca.height - this.gutterTop - this.gutterBottom));
                }
            }
        };


    /**
     * Draws in-graph labels.
     *
     * @param object obj The graph object
     */
    this.drawInGraphLabels =
        this.DrawInGraphLabels = function (obj) {
            var labels = obj.Get('chart.labels.ingraph');
            var labels_processed = [];

            if (!labels) {
                return;
            }

            // Defaults
            var fgcolor = 'black';
            var bgcolor = 'white';
            var direction = 1;

            /**
             * Preprocess the labels array. Numbers are expanded
             */
            for (var i = 0, len = labels.length; i < len; i += 1) {
                if (typeof(labels[i]) == 'number') {
                    for (var j = 0; j < labels[i]; ++j) {
                        labels_processed.push(null);
                    }
                } else if (typeof(labels[i]) == 'string' || typeof(labels[i]) == 'object') {
                    labels_processed.push(labels[i]);

                } else {
                    labels_processed.push('');
                }
            }

            /**
             * Turn off any shadow
             */
            RG.NoShadow(obj);

            if (labels_processed && labels_processed.length > 0) {

                var i = 0;

                for (var set = 0; set < obj.coords.length; ++set) {
                    for (var point = 0; point < obj.coords[set].length; ++point) {
                        if (labels_processed[i]) {
                            var x = obj.coords[set][point][0];
                            var y = obj.coords[set][point][1];
                            var length = typeof(labels_processed[i][4]) == 'number' ? labels_processed[i][4] : 25;

                            var text_x = x;
                            var text_y = y - 5 - length;

                            co.moveTo(x, y - 5);
                            co.lineTo(x, y - 5 - length);

                            co.stroke();
                            co.beginPath();

                            // This draws the arrow
                            co.moveTo(x, y - 5);
                            co.lineTo(x - 3, y - 10);
                            co.lineTo(x + 3, y - 10);
                            co.closePath();


                            co.beginPath();
                            // Fore ground color
                            co.fillStyle = (typeof(labels_processed[i]) == 'object' && typeof(labels_processed[i][1]) == 'string') ? labels_processed[i][1] : 'black';
                            RG.Text2(this, {
                                'font': obj.Get('chart.text.font'),
                                'size': obj.Get('chart.text.size'),
                                'x': text_x,
                                'y': text_y,
                                'text': (typeof(labels_processed[i]) == 'object' && typeof(labels_processed[i][0]) == 'string') ? labels_processed[i][0] : labels_processed[i],
                                'valign': 'bottom',
                                'halign': 'center',
                                'bounding': true,
                                'boundingFill': (typeof(labels_processed[i]) == 'object' && typeof(labels_processed[i][2]) == 'string') ? labels_processed[i][2] : 'white',
                                'tag': 'labels.ingraph'
                            });
                            co.fill();
                        }

                        i++;
                    }
                }
            }
        };


    /**
     * This function makes it much easier to get the (if any) point that is currently being hovered over.
     *
     * @param object e The event object
     */
    this.getShape =
        this.getPoint = function (e) {
            var mouseXY = RG.getMouseXY(e);
            var mouseX = mouseXY[0];
            var mouseY = mouseXY[1];
            var overHotspot = false;
            var offset = prop['chart.tooltips.hotspot']; // This is how far the hotspot extends

            for (var set = 0, len = this.coords.length; set < len; ++set) {
                for (var i = 0, len2 = this.coords[set].length; i < len2; ++i) {

                    var x = this.coords[set][i][0];
                    var y = this.coords[set][i][1];
                    var tooltip = this.data[set][i][3];

                    if (typeof(y) == 'number') {
                        if (mouseX <= (x + offset) &&
                            mouseX >= (x - offset) &&
                            mouseY <= (y + offset) &&
                            mouseY >= (y - offset)) {

                            var tooltip = RG.parseTooltipText(this.data[set][i][3], 0);
                            var index_adjusted = i;

                            for (var ds = (set - 1); ds >= 0; --ds) {
                                index_adjusted += this.data[ds].length;
                            }

                            return {
                                0: this, 1: x, 2: y, 3: set, 4: i, 5: this.data[set][i][3],
                                'object': this, 'x': x, 'y': y, 'dataset': set, 'index': i, 'tooltip': tooltip, 'index_adjusted': index_adjusted
                            };
                        }
                    } else if (RG.is_null(y)) {
                        // Nothing to see here

                    } else {

                        var mark = this.data[set][i];

                        /**
                         * Determine the width
                         */
                        var width = prop['chart.boxplot.width'];

                        if (typeof(mark[1][7]) == 'number') {
                            width = mark[1][7];
                        }

                        if (typeof(x) == 'object'
                            && mouseX > x[0]
                            && mouseX < x[1]
                            && mouseY < y[1]
                            && mouseY > y[3]
                        ) {

                            var tooltip = RG.parseTooltipText(this.data[set][i][3], 0);

                            return {
                                0: this, 1: x[0], 2: x[1] - x[0], 3: y[1], 4: y[3] - y[1], 5: set, 6: i, 7: this.data[set][i][3],
                                'object': this, 'x': x[0], 'y': y[1], 'width': x[1] - x[0], 'height': y[3] - y[1], 'dataset': set, 'index': i, 'tooltip': tooltip
                            };
                        }
                    }
                }
            }
        };


    /**
     * Draws the above line labels
     */
    this.drawAboveLabels =
        this.DrawAboveLabels = function () {
            var size = prop['chart.labels.above.size'];
            var font = prop['chart.text.font'];
            var units_pre = prop['chart.units.pre'];
            var units_post = prop['chart.units.post'];


            for (var set = 0, len = this.coords.length; set < len; ++set) {
                for (var point = 0, len2 = this.coords[set].length; point < len2; ++point) {

                    var x_val = this.data[set][point][0];
                    var y_val = this.data[set][point][1];

                    if (!RG.is_null(y_val)) {

                        // Use the top most value from a box plot
                        if (RG.is_array(y_val)) {
                            var max = 0;
                            for (var i = 0; i < y_val; ++i) {
                                max = Math.max(max, y_val[i]);
                            }

                            y_val = max;
                        }

                        var x_pos = this.coords[set][point][0];
                        var y_pos = this.coords[set][point][1];

                        RG.Text2(this, {
                            'font': font,
                            'size': size,
                            'x': x_pos,
                            'y': y_pos - 5 - size,
                            'text': x_val.toFixed(prop['chart.labels.above.decimals']) + ', ' + y_val.toFixed(prop['chart.labels.above.decimals']),
                            'valign': 'center',
                            'halign': 'center',
                            'bounding': true,
                            'boundingFill': 'rgba(255, 255, 255, 0.7)',
                            'tag': 'labels.above'
                        });
                    }
                }
            }
        };


    /**
     * When you click on the chart, this method can return the Y value at that point. It works for any point on the
     * chart (that is inside the gutters) - not just points within the Bars.
     *
     * @param object e The event object
     */
    this.getYValue =
        this.getValue = function (arg) {
            if (arg.length == 2) {
                var mouseX = arg[0];
                var mouseY = arg[1];
            } else {
                var mouseCoords = RG.getMouseXY(arg);
                var mouseX = mouseCoords[0];
                var mouseY = mouseCoords[1];
            }

            var obj = this;

            if (mouseY < this.gutterTop
                || mouseY > (ca.height - this.gutterBottom)
                || mouseX < this.gutterLeft
                || mouseX > (ca.width - this.gutterRight)
            ) {
                return null;
            }

            if (prop['chart.xaxispos'] == 'center') {
                var value = (((this.grapharea / 2) - (mouseY - this.gutterTop)) / this.grapharea) * (this.max - this.min)
                value *= 2;


                // Account for each side of the X axis
                if (value >= 0) {
                    value += this.min

                    if (prop['chart.ylabels.invert']) {
                        value -= this.min;
                        value = this.max - value;
                    }

                } else {

                    value -= this.min;
                    if (prop['chart.ylabels.invert']) {
                        value += this.min;
                        value = this.max + value;
                        value *= -1;
                    }
                }

            } else {

                var value = ((this.grapharea - (mouseY - this.gutterTop)) / this.grapharea) * (this.max - this.min)
                value += this.min;

                if (prop['chart.ylabels.invert']) {
                    value -= this.min;
                    value = this.max - value;
                }
            }

            return value;
        };


    /**
     * When you click on the chart, this method can return the X value at that point.
     *
     * @param mixed  arg This can either be an event object or the X coordinate
     * @param number     If specifying the X coord as the first arg then this should be the Y coord
     */
    this.getXValue = function (arg) {
        if (arg.length == 2) {
            var mouseX = arg[0];
            var mouseY = arg[1];
        } else {
            var mouseXY = RG.getMouseXY(arg);
            var mouseX = mouseXY[0];
            var mouseY = mouseXY[1];
        }
        var obj = this;

        if (mouseY < this.gutterTop
            || mouseY > (ca.height - this.gutterBottom)
            || mouseX < this.gutterLeft
            || mouseX > (ca.width - this.gutterRight)
        ) {
            return null;
        }

        var width = (ca.width - this.gutterLeft - this.gutterRight);
        var value = ((mouseX - this.gutterLeft) / width) * (prop['chart.xmax'] - prop['chart.xmin'])
        value += prop['chart.xmin'];

        return value;
    };


    /**
     * Each object type has its own Highlight() function which highlights the appropriate shape
     *
     * @param object shape The shape to highlight
     */
    this.highlight =
        this.Highlight = function (shape) {
            // Boxplot highlight
            if (shape['height']) {
                RG.Highlight.Rect(this, shape);

                // Point highlight
            } else {
                RG.Highlight.Point(this, shape);
            }
        };


    /**
     * The getObjectByXY() worker method. Don't call this call:
     *
     * RG.ObjectRegistry.getObjectByXY(e)
     *
     * @param object e The event object
     */
    this.getObjectByXY = function (e) {
        var mouseXY = RG.getMouseXY(e);

        if (
            mouseXY[0] > (this.gutterLeft - 3)
            && mouseXY[0] < (ca.width - this.gutterRight + 3)
            && mouseXY[1] > (this.gutterTop - 3)
            && mouseXY[1] < ((ca.height - this.gutterBottom) + 3)
        ) {

            return this;
        }
    };


    /**
     * This function can be used when the canvas is clicked on (or similar - depending on the event)
     * to retrieve the relevant X coordinate for a particular value.
     *
     * @param int value The value to get the X coordinate for
     */
    this.getXCoord = function (value) {
        if (typeof value != 'number' && typeof value != 'string') {
            return null;
        }

        // Allow for date strings to be passed
        if (typeof value === 'string') {
            value = RG.parseDate(value);
        }

        var xmin = prop['chart.xmin'];
        var xmax = prop['chart.xmax'];
        var x;

        if (value < xmin) return null;
        if (value > xmax) return null;

        var gutterRight = this.gutterRight;
        var gutterLeft = this.gutterLeft;

        if (prop['chart.yaxispos'] == 'right') {
            x = ((value - xmin) / (xmax - xmin)) * (ca.width - gutterLeft - gutterRight);
            x = (ca.width - gutterRight - x);
        } else {
            x = ((value - xmin) / (xmax - xmin)) * (ca.width - gutterLeft - gutterRight);
            x = x + gutterLeft;
        }

        return x;
    };


    /**
     * This function positions a tooltip when it is displayed
     *
     * @param obj object    The chart object
     * @param int x         The X coordinate specified for the tooltip
     * @param int y         The Y coordinate specified for the tooltip
     * @param objec tooltip The tooltips DIV element
     */
    this.positionTooltip = function (obj, x, y, tooltip, idx) {
        var shape = RG.Registry.Get('chart.tooltip.shape');
        var dataset = shape['dataset'];
        var index = shape['index'];
        var coordX = obj.coords[dataset][index][0]
        var coordY = obj.coords[dataset][index][1]
        var canvasXY = RG.getCanvasXY(obj.canvas);
        var gutterLeft = obj.gutterLeft;
        var gutterTop = obj.gutterTop;
        var width = tooltip.offsetWidth;
        var height = tooltip.offsetHeight;
        tooltip.style.left = 0;
        tooltip.style.top = 0;

        // Is the coord a boxplot
        var isBoxplot = typeof(coordY) == 'object' ? true : false;

        // Show any overflow (ie the arrow)
        tooltip.style.overflow = '';

        // Create the arrow
        var img = new Image();
        img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAFCAYAAACjKgd3AAAARUlEQVQYV2NkQAN79+797+RkhC4M5+/bd47B2dmZEVkBCgcmgcsgbAaA9GA1BCSBbhAuA/AagmwQPgMIGgIzCD0M0AMMAEFVIAa6UQgcAAAAAElFTkSuQmCC';
        img.style.position = 'absolute';
        img.id = '__rgraph_tooltip_pointer__';
        img.style.top = (tooltip.offsetHeight - 2) + 'px';
        tooltip.appendChild(img);

        // Reposition the tooltip if at the edges:

        // LEFT edge //////////////////////////////////////////////////////////////////

        if ((canvasXY[0] + (coordX[0] || coordX) - (width / 2)) < 10) {

            if (isBoxplot) {
                tooltip.style.left = canvasXY[0] + coordX[0] + ((coordX[1] - coordX[0]) / 2) - (width * 0.1) + 'px';
                tooltip.style.top = canvasXY[1] + coordY[2] - height - 5 + 'px';
                img.style.left = ((width * 0.1) - 8.5) + 'px';

            } else {
                tooltip.style.left = (canvasXY[0] + coordX - (width * 0.1)) + 'px';
                tooltip.style.top = canvasXY[1] + coordY - height - 9 + 'px';
                img.style.left = ((width * 0.1) - 8.5) + 'px';
            }

            // RIGHT edge //////////////////////////////////////////////////////////////////

        } else if ((canvasXY[0] + (coordX[0] || coordX) + (width / 2)) > doc.body.offsetWidth) {
            if (isBoxplot) {
                tooltip.style.left = canvasXY[0] + coordX[0] + ((coordX[1] - coordX[0]) / 2) - (width * 0.9) + 'px';
                tooltip.style.top = canvasXY[1] + coordY[2] - height - 5 + 'px';
                img.style.left = ((width * 0.9) - 8.5) + 'px';

            } else {
                tooltip.style.left = (canvasXY[0] + coordX - (width * 0.9)) + 'px';
                tooltip.style.top = canvasXY[1] + coordY - height - 9 + 'px';
                img.style.left = ((width * 0.9) - 8.5) + 'px';
            }

            // Default positioning - CENTERED //////////////////////////////////////////////////////////////////

        } else {
            if (isBoxplot) {
                tooltip.style.left = canvasXY[0] + coordX[0] + ((coordX[1] - coordX[0]) / 2) - (width / 2) + 'px';
                tooltip.style.top = canvasXY[1] + coordY[2] - height - 5 + 'px';
                img.style.left = ((width * 0.5) - 8.5) + 'px';

            } else {
                tooltip.style.left = (canvasXY[0] + coordX - (width * 0.5)) + 'px';
                tooltip.style.top = canvasXY[1] + coordY - height - 9 + 'px';
                img.style.left = ((width * 0.5) - 8.5) + 'px';
            }
        }
    };


    /**
     * Returns the applicable Y COORDINATE when given a Y value
     *
     * @param int value The value to use
     * @return int The appropriate Y coordinate
     */
    this.getYCoord =
        this.getYCoordFromValue = function (value) {
            if (typeof(value) != 'number') {
                return null;
            }

            var invert = prop['chart.ylabels.invert'];
            var xaxispos = prop['chart.xaxispos'];
            var graphHeight = ca.height - this.gutterTop - this.gutterBottom;
            var halfGraphHeight = graphHeight / 2;
            var ymax = this.max;
            var ymin = prop['chart.ymin'];
            var coord = 0;

            if (value > ymax || (prop['chart.xaxispos'] == 'bottom' && value < ymin) || (prop['chart.xaxispos'] == 'center' && ((value > 0 && value < ymin) || (value < 0 && value > (-1 * ymin))))) {
                return null;
            }

            /**
             * This calculates scale values if the X axis is in the center
             */
            if (xaxispos == 'center') {

                coord = ((Math.abs(value) - ymin) / (ymax - ymin)) * halfGraphHeight;

                if (invert) {
                    coord = halfGraphHeight - coord;
                }

                if (value < 0) {
                    coord += this.gutterTop;
                    coord += halfGraphHeight;
                } else {
                    coord = halfGraphHeight - coord;
                    coord += this.gutterTop;
                }

                /**
                 * And this calculates scale values when the X axis is at the bottom
                 */
            } else {

                coord = ((value - ymin) / (ymax - ymin)) * graphHeight;

                if (invert) {
                    coord = graphHeight - coord;
                }

                // Invert the coordinate because the Y scale starts at the top
                coord = graphHeight - coord;

                // And add on the top gutter
                coord = this.gutterTop + coord;
            }

            return coord;
        };


    /**
     * A helper class that helps facilitatesbubble charts
     */
    RG.Scatter.Bubble = function (scatter, min, max, width, data) {
        this.scatter = scatter;
        this.min = min;
        this.max = max;
        this.width = width;
        this.data = data;


        /**
         * A setter for the Bubble chart class - it just acts as a "passthru" to the Scatter object
         */
        this.set =
            this.Set = function (name, value) {
                this.scatter.Set(name, value);

                return this;
            };


        /**
         * A getter for the Bubble chart class - it just acts as a "passthru" to the Scatter object
         */
        this.get =
            this.Get = function (name) {
                this.scatter.Get(name);
            };


        /**
         * Tha Bubble chart draw function
         */
        this.draw =
            this.Draw = function () {
                var bubble_min = this.min;
                var bubble_max = this.max;
                var bubble_data = this.data;
                var bubble_max_width = this.width;

                // This custom ondraw event listener draws the bubbles
                this.scatter.ondraw = function (obj) {
                    // Loop through all the points (first dataset)
                    for (var i = 0; i < obj.coords[0].length; ++i) {

                        bubble_data[i] = Math.max(bubble_data[i], bubble_min);
                        bubble_data[i] = Math.min(bubble_data[i], bubble_max);

                        var r = ((bubble_data[i] - bubble_min) / (bubble_max - bubble_min) ) * bubble_max_width;

                        co.beginPath();
                        co.fillStyle = RG.RadialGradient(obj,
                            obj.coords[0][i][0] + (r / 2.5),
                            obj.coords[0][i][1] - (r / 2.5),
                            0,
                            obj.coords[0][i][0] + (r / 2.5),
                            obj.coords[0][i][1] - (r / 2.5),
                            50,
                            'white',
                            obj.data[0][i][2] ? obj.data[0][i][2] : obj.properties['chart.defaultcolor']
                        );
                        co.arc(obj.coords[0][i][0], obj.coords[0][i][1], r, 0, RG.TWOPI, false);
                        co.fill();
                    }
                }

                return this.scatter.Draw();
            };
    };


    /**
     * This allows for easy specification of gradients
     */
    this.parseColors = function () {
        // Save the original colors so that they can be restored when the canvas is reset
        if (this.original_colors.length === 0) {
            this.original_colors['data'] = RG.array_clone(this.data);
            this.original_colors['chart.background.vbars'] = RG.array_clone(prop['chart.background.vbars']);
            this.original_colors['chart.background.hbars'] = RG.array_clone(prop['chart.background.hbars']);
            this.original_colors['chart.line.colors'] = RG.array_clone(prop['chart.line.colors']);
            this.original_colors['chart.defaultcolor'] = RG.array_clone(prop['chart.defaultcolor']);
            this.original_colors['chart.crosshairs.color'] = RG.array_clone(prop['chart.crosshairs.color']);
            this.original_colors['chart.highlight.stroke'] = RG.array_clone(prop['chart.highlight.stroke']);
            this.original_colors['chart.highlight.fill'] = RG.array_clone(prop['chart.highlight.fill']);
            this.original_colors['chart.background.barcolor1'] = RG.array_clone(prop['chart.background.barcolor1']);
            this.original_colors['chart.background.barcolor2'] = RG.array_clone(prop['chart.background.barcolor2']);
            this.original_colors['chart.background.grid.color'] = RG.array_clone(prop['chart.background.grid.color']);
            this.original_colors['chart.background.color'] = RG.array_clone(prop['chart.background.color']);
            this.original_colors['chart.axis.color'] = RG.array_clone(prop['chart.axis.color']);
        }


        // Colors
        var data = this.data;
        if (data) {
            for (var dataset = 0; dataset < data.length; ++dataset) {
                for (var i = 0; i < this.data[dataset].length; ++i) {

                    // Boxplots
                    if (this.data[dataset][i] && typeof(this.data[dataset][i][1]) == 'object' && this.data[dataset][i][1]) {

                        if (typeof(this.data[dataset][i][1][5]) == 'string') this.data[dataset][i][1][5] = this.parseSingleColorForGradient(this.data[dataset][i][1][5]);
                        if (typeof(this.data[dataset][i][1][6]) == 'string') this.data[dataset][i][1][6] = this.parseSingleColorForGradient(this.data[dataset][i][1][6]);
                    }

                    this.data[dataset][i][2] = this.parseSingleColorForGradient(this.data[dataset][i][2]);
                }
            }
        }

        // Parse HBars
        var hbars = prop['chart.background.hbars'];
        if (hbars) {
            for (i = 0; i < hbars.length; ++i) {
                hbars[i][2] = this.parseSingleColorForGradient(hbars[i][2]);
            }
        }

        // Parse HBars
        var vbars = prop['chart.background.vbars'];
        if (vbars) {
            for (i = 0; i < vbars.length; ++i) {
                vbars[i][2] = this.parseSingleColorForGradient(vbars[i][2]);
            }
        }

        // Parse line colors
        var colors = prop['chart.line.colors'];
        if (colors) {
            for (i = 0; i < colors.length; ++i) {
                colors[i] = this.parseSingleColorForGradient(colors[i]);
            }
        }

        prop['chart.defaultcolor'] = this.parseSingleColorForGradient(prop['chart.defaultcolor']);
        prop['chart.crosshairs.color'] = this.parseSingleColorForGradient(prop['chart.crosshairs.color']);
        prop['chart.highlight.stroke'] = this.parseSingleColorForGradient(prop['chart.highlight.stroke']);
        prop['chart.highlight.fill'] = this.parseSingleColorForGradient(prop['chart.highlight.fill']);
        prop['chart.background.barcolor1'] = this.parseSingleColorForGradient(prop['chart.background.barcolor1']);
        prop['chart.background.barcolor2'] = this.parseSingleColorForGradient(prop['chart.background.barcolor2']);
        prop['chart.background.grid.color'] = this.parseSingleColorForGradient(prop['chart.background.grid.color']);
        prop['chart.background.color'] = this.parseSingleColorForGradient(prop['chart.background.color']);
        prop['chart.axis.color'] = this.parseSingleColorForGradient(prop['chart.axis.color']);
    };


    /**
     * Use this function to reset the object to the post-constructor state. Eg reset colors if
     * need be etc
     */
    this.reset = function () {
    };


    /**
     * This parses a single color value for a gradient
     */
    this.parseSingleColorForGradient = function (color) {
        if (!color || typeof(color) != 'string') {
            return color;
        }

        if (color.match(/^gradient\((.*)\)$/i)) {

            var parts = RegExp.$1.split(':');

            // Create the gradient
            var grad = co.createLinearGradient(0, ca.height - prop['chart.gutter.bottom'], 0, prop['chart.gutter.top']);

            var diff = 1 / (parts.length - 1);

            grad.addColorStop(0, RG.trim(parts[0]));

            for (var j = 1; j < parts.length; ++j) {
                grad.addColorStop(j * diff, RG.trim(parts[j]));
            }
        }

        return grad ? grad : color;
    };


    /**
     * This function handles highlighting an entire data-series for the interactive
     * key
     *
     * @param int index The index of the data series to be highlighted
     */
    this.interactiveKeyHighlight = function (index) {
        if (this.coords && this.coords[index] && this.coords[index].length) {
            this.coords[index].forEach(function (value, idx, arr) {
                co.beginPath();
                co.fillStyle = prop['chart.key.interactive.highlight.chart.fill'];
                co.arc(value[0], value[1], prop['chart.ticksize'] + 3, 0, RG.TWOPI, false);
                co.fill();
            });
        }
    };


    /**
     * Using a function to add events makes it easier to facilitate method chaining
     *
     * @param string   type The type of even to add
     * @param function func
     */
    this.on = function (type, func) {
        if (type.substr(0, 2) !== 'on') {
            type = 'on' + type;
        }

        this[type] = func;

        return this;
    };


    /**
     * This function runs once only
     * (put at the end of the file (before any effects))
     */
    this.firstDrawFunc = function () {
    };


    /**
     * Trace
     *
     * This effect is for the Scatter chart, uses the jQuery library and slowly
     * uncovers the Line/marks, but you can see the background of the chart.
     */
    this.trace = function () {
        var callback = typeof(arguments[1]) === 'function' ? arguments[1] : function () {
        };
        var opt = arguments[0] || [];
        var obj = this;

        opt['duration'] = opt['duration'] || 1500;
        if (opt['frames']) {
            opt['duration'] = (opt['frames'] / 60) * 1000;
        }

        RGraph.clear(ca);
        RGraph.redrawCanvas(ca);

        /**
         * Create the DIV that the second canvas will sit in
         */
        var div = document.createElement('DIV');
        var xy = RG.getCanvasXY(this.canvas);
        div.id = '__rgraph_trace_animation_' + RGraph.random(0, 4351623) + '__';
        div.style.left = xy[0] + 'px';
        div.style.top = xy[1] + 'px';
        div.style.width = prop['chart.gutter.left'];
        div.style.height = ca.height + 'px';
        div.style.position = 'absolute';
        div.style.overflow = 'hidden';
        document.body.appendChild(div);


        /**
         * Make the second canvas
         */
        var id = '__rgraph_scatter_trace_animation_' + RG.random(0, 99999999) + '__';
        var canvas2 = document.createElement('CANVAS');
        canvas2.width = ca.width;
        canvas2.height = ca.height;
        canvas2.style.position = 'absolute';
        canvas2.style.left = 0;
        canvas2.style.top = 0;

        // This stops the clear effect clearing the canvas - which can happen if you have multiple canvas tags on the page all with
        // dynamic effects that do redrawing
        canvas2.noclear = true;

        canvas2.id = id;
        div.appendChild(canvas2);

        var reposition_canvas2 = function (e) {

            var xy = RGraph.getCanvasXY(obj.canvas);

            div.style.left = xy[0] + 'px';
            div.style.top = xy[1] + 'px';
        }
        window.addEventListener('resize', reposition_canvas2, false)

        /**
         * Make a copy of the original Line object
         */
        var obj2 = new RGraph.Scatter(id, RG.array_clone(this.data));

        // Remove the new line from the ObjectRegistry so that it isn't redawn
        RG.ObjectRegistry.Remove(obj2);

        for (i in prop) {
            if (typeof i === 'string') {
                obj2.Set(i, prop[i]);
            }
        }


        obj2.Set('chart.labels', []);
        obj2.Set('chart.background.grid', false);
        obj2.Set('chart.background.barcolor1', 'rgba(0,0,0,0)');
        obj2.Set('chart.background.barcolor2', 'rgba(0,0,0,0)');
        obj2.Set('chart.ylabels', false);
        obj2.Set('chart.noaxes', true);
        obj2.Set('chart.title', '');
        obj2.Set('chart.title.xaxis', '');
        obj2.Set('chart.title.yaxis', '');
        obj2.Set('chart.key', []);
        obj2.Draw();


        /**
         * This effectively hides the line
         */
        this.set('chart.line.visible', false);


        RGraph.clear(ca);
        RGraph.redrawCanvas(ca);

        /**
         * Place a DIV over the canvas to stop interaction with it
         */
        if (!ca.__rgraph_scatter_trace_cover__) {
            var div2 = document.createElement('DIV');
            div2.id = '__rgraph_trace_animation_' + RGraph.random(0, 4351623) + '__';
            div2.style.left = xy[0] + 'px';
            div2.style.top = xy[1] + 'px';
            div2.style.width = ca.width + 'px';
            div2.style.height = ca.height + 'px';
            div2.style.position = 'absolute';
            div2.style.overflow = 'hidden';
            div2.style.backgroundColor = 'rgba(0,0,0,0)';
            div.div2 = div2;
            ca.__rgraph_scatter_trace_cover__ = div2
            document.body.appendChild(div2);
        } else {
            div2 = ca.__rgraph_scatter_trace_cover__;
        }

        /**
         * Animate the DIV that contains the canvas
         */
        jQuery('#' + div.id).animate({
            width: ca.width + 'px'
        }, opt['duration'], function () {
            // Remove the window resize listener
            window.removeEventListener('resize', reposition_canvas2, false);

            div.style.display = 'none';
            div2.style.display = 'none';

            //div.removeChild(canvas2);
            obj.Set('chart.line.visible', true);

            // Revert the colors back to what they were
            obj.Set('chart.colors', RGraph.array_clone(obj2.Get('chart.colors')));
            obj.Set('chart.key', RG.array_clone(obj2.Get('chart.key')));

            RGraph.RedrawCanvas(ca);

            ca.__rgraph_trace_cover__ = null;

            callback(obj);
        });

        return this;
    };


    /**
     * This helps the Gantt reset colors when the reset function is called.
     * It handles going through the data and resetting the colors.
     */
    this.resetColorsToOriginalValues = function () {
        /**
         * Copy the original colors over for single-event-per-line data
         */
        for (var i = 0, len = this.original_colors['data'].length; i < len; ++i) {
            for (var j = 0, len2 = this.original_colors['data'][i].length; j < len2; ++j) {

                // The color for the point
                this.data[i][j][2] = RG.array_clone(this.original_colors['data'][i][j][2]);

                // Handle boxplots
                if (typeof this.data[i][j][1] === 'object') {
                    this.data[i][j][1][5] = RG.array_clone(this.original_colors['data'][i][j][1][5]);
                    this.data[i][j][1][6] = RG.array_clone(this.original_colors['data'][i][j][1][6]);
                }
            }
        }
    };


    /**
     * Register the object
     */
    RG.Register(this);


    /**
     * This is the 'end' of the constructor so if the first argument
     * contains configuration data - handle that.
     */
    if (parseConfObjectForOptions) {
        RG.parseObjectStyleConfig(this, conf.options);
    }
};
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AnonSec Team