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/**
 * jqPlot
 * Pure JavaScript plotting plugin using jQuery
 *
 * Version: 1.0.8
 * Revision: 1250
 *
 * Copyright (c) 2009-2013 Chris Leonello
 * jqPlot is currently available for use in all personal or commercial projects 
 * under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL 
 * version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can 
 * choose the license that best suits your project and use it accordingly. 
 *
 * Although not required, the author would appreciate an email letting him 
 * know of any substantial use of jqPlot.  You can reach the author at: 
 * chris at jqplot dot com or see http://www.jqplot.com/info.php .
 *
 * If you are feeling kind and generous, consider supporting the project by
 * making a donation at: http://www.jqplot.com/donate.php .
 *
 * sprintf functions contained in jqplot.sprintf.js by Ash Searle:
 *
 *     version 2007.04.27
 *     author Ash Searle
 *     http://hexmen.com/blog/2007/03/printf-sprintf/
 *     http://hexmen.com/js/sprintf.js
 *     The author (Ash Searle) has placed this code in the public domain:
 *     "This code is unrestricted: you are free to use it however you like."
 * 
 */
(function($) {

    // Need to ensure pyramid axis and grid renderers are loaded.
    // You should load these with script tags in the html head, that is more efficient
    // as the browser will cache the request.
    // Note, have to block with synchronous request in order to execute bar renderer code.
    if ($.jqplot.PyramidAxisRenderer === undefined) {
        $.ajax({
            url: $.jqplot.pluginLocation + 'jqplot.pyramidAxisRenderer.js',
            dataType: "script",
            async: false
        });
    }
    
    if ($.jqplot.PyramidGridRenderer === undefined) {
        $.ajax({
            url: $.jqplot.pluginLocation + 'jqplot.pyramidGridRenderer.js',
            dataType: "script",
            async: false
        });
    }

    $.jqplot.PyramidRenderer = function(){
        $.jqplot.LineRenderer.call(this);
    };
    
    $.jqplot.PyramidRenderer.prototype = new $.jqplot.LineRenderer();
    $.jqplot.PyramidRenderer.prototype.constructor = $.jqplot.PyramidRenderer;
    
    // called with scope of a series
    $.jqplot.PyramidRenderer.prototype.init = function(options, plot) {
        options = options || {};
        this._type = 'pyramid';
        // Group: Properties
        //
        // prop: barPadding
        this.barPadding = 10;
        this.barWidth = null;
        // prop: fill
        // True to fill the bars.
        this.fill = true;
        // prop: highlightMouseOver
        // True to highlight slice when moused over.
        // This must be false to enable highlightMouseDown to highlight when clicking on a slice.
        this.highlightMouseOver = true;
        // prop: highlightMouseDown
        // True to highlight when a mouse button is pressed over a slice.
        // This will be disabled if highlightMouseOver is true.
        this.highlightMouseDown = false;
        // prop: highlightColors
        // an array of colors to use when highlighting a slice.
        this.highlightColors = [];
        // prop highlightThreshold
        // Expand the highlightable region in the x direction.
        // E.g. a value of 3 will highlight a bar when the mouse is
        // within 3 pixels of the bar in the x direction.
        this.highlightThreshold = 2;
        // prop: synchronizeHighlight
        // Index of another series to highlight when this series is highlighted.
        // null or false to not synchronize.
        this.synchronizeHighlight = false;
        // prop: offsetBars
        // False will center bars on their y value.
        // True will push bars up by 1/2 bar width to fill between their y values.
        // If true, there needs to be 1 more tick than there are bars.
        this.offsetBars = false;
        
        // if user has passed in highlightMouseDown option and not set highlightMouseOver, disable highlightMouseOver
        if (options.highlightMouseDown && options.highlightMouseOver == null) {
            options.highlightMouseOver = false;
        }

        this.side = 'right';
        
        $.extend(true, this, options);

        // if (this.fill === false) {
        //     this.shadow = false;
        // }

        if (this.side === 'left') {
            this._highlightThreshold = [[-this.highlightThreshold, 0], [-this.highlightThreshold, 0], [0,0], [0,0]];
        }

        else {
            this._highlightThreshold = [[0,0], [0,0], [this.highlightThreshold, 0], [this.highlightThreshold, 0]];
        }
        
        this.renderer.options = options;
        // index of the currenty highlighted point, if any
        this._highlightedPoint = null;
        // Array of actual data colors used for each data point.
        this._dataColors = [];
        this._barPoints = [];
        this.fillAxis = 'y';
        this._primaryAxis = '_yaxis';
        this._xnudge = 0;
        
        // set the shape renderer options
        var opts = {lineJoin:'miter', lineCap:'butt', fill:this.fill, fillRect:this.fill, isarc:false, strokeStyle:this.color, fillStyle:this.color, closePath:this.fill, lineWidth: this.lineWidth};
        this.renderer.shapeRenderer.init(opts);
        // set the shadow renderer options
        var shadow_offset = options.shadowOffset;
        // set the shadow renderer options
        if (shadow_offset == null) {
            // scale the shadowOffset to the width of the line.
            if (this.lineWidth > 2.5) {
                shadow_offset = 1.25 * (1 + (Math.atan((this.lineWidth/2.5))/0.785398163 - 1)*0.6);
                // var shadow_offset = this.shadowOffset;
            }
            // for skinny lines, don't make such a big shadow.
            else {
                shadow_offset = 1.25 * Math.atan((this.lineWidth/2.5))/0.785398163;
            }
        }
        var sopts = {lineJoin:'miter', lineCap:'butt', fill:this.fill, fillRect:this.fill, isarc:false, angle:this.shadowAngle, offset:shadow_offset, alpha:this.shadowAlpha, depth:this.shadowDepth, closePath:this.fill, lineWidth: this.lineWidth};
        this.renderer.shadowRenderer.init(sopts);

        plot.postDrawHooks.addOnce(postPlotDraw);
        plot.eventListenerHooks.addOnce('jqplotMouseMove', handleMove);

        // if this is the left side of pyramid, set y values to negative.
        if (this.side === 'left') {
            for (var i=0, l=this.data.length; i= 0) {
                        // xstart = this._xaxis.series_u2p(this._xnudge);
                        w = gridData[i][0] - xstart;
                        h = this.barWidth;
                        points = [xstart, base - bw2 - yadj, w, h];
                    }
                    else {
                        // xstart = this._xaxis.series_u2p(0);
                        w = xstart - gridData[i][0];
                        h = this.barWidth;
                        points = [gridData[i][0], base - bw2 - yadj, w, h];
                    }

                    this._barPoints.push([[points[0], points[1] + h], [points[0], points[1]], [points[0] + w, points[1]], [points[0] + w, points[1] + h]]);

                    if (shadow) {
                        this.renderer.shadowRenderer.draw(ctx, points);
                    }
                    var clr = opts.fillStyle || this.color;
                    this._dataColors.push(clr);
                    this.renderer.shapeRenderer.draw(ctx, points, opts); 
                }

                else {
                    if (i === 0) {
                        points =[[xstart, ystart], [gridData[i][0], ystart], [gridData[i][0], gridData[i][1] - bw2 - yadj]];
                    }

                    else if (i < l-1) {
                        points = points.concat([[gridData[i-1][0], gridData[i-1][1] - bw2 - yadj], [gridData[i][0], gridData[i][1] + bw2 - yadj], [gridData[i][0], gridData[i][1] - bw2 - yadj]]);
                    } 

                    // finally, draw the line
                    else {
                        points = points.concat([[gridData[i-1][0], gridData[i-1][1] - bw2 - yadj], [gridData[i][0], gridData[i][1] + bw2 - yadj], [gridData[i][0], yend], [xstart, yend]]);
                    
                        if (shadow) {
                            this.renderer.shadowRenderer.draw(ctx, points);
                        }
                        var clr = opts.fillStyle || this.color;
                        this._dataColors.push(clr);
                        this.renderer.shapeRenderer.draw(ctx, points, opts);
                    }
                }
            }  
        }        
        
        if (this.highlightColors.length == 0) {
            this.highlightColors = $.jqplot.computeHighlightColors(this._dataColors);
        }
        
        else if (typeof(this.highlightColors) == 'string') {
            this.highlightColors = [];
            for (var i=0; i= s.synchronizeHighlight && s.synchronizeHighlight !== sidx) {
            s = plot.series[s.synchronizeHighlight];
            opts = {fillStyle: s.highlightColors[pidx], fillRect: false};
            s.renderer.shapeRenderer.draw(canvas._ctx, s._barPoints[pidx], opts);
        }
        canvas = null;
    }
    
    function unhighlight (plot) {
        var canvas = plot.plugins.pyramidRenderer.highlightCanvas;
        canvas._ctx.clearRect(0,0, canvas._ctx.canvas.width, canvas._ctx.canvas.height);
        for (var i=0; i




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