chartsbug2532327Patch.js

chartsbug2532327Patch.js

var setAreaData = function()
{
    var isNumber = Y.Lang.isNumber,
        nextX, nextY,
        graph = this.get("graph"),
        w = graph.get("width"),
        h = graph.get("height"),
        xAxis = this.get("xAxis"),
        yAxis = this.get("yAxis"),
        xData = this.get("xData").concat(),
        yData = this.get("yData").concat(),
        xValue,
        yValue,
        xOffset = xAxis.getEdgeOffset(xData.length, w),
        yOffset = yAxis.getEdgeOffset(yData.length, h),
        padding = this.get("styles").padding,
        leftPadding = padding.left,
        topPadding = padding.top,
        dataWidth = w - (leftPadding + padding.right + xOffset),
        dataHeight = h - (topPadding + padding.bottom + yOffset),
        xcoords = [],
        ycoords = [],
        xMax = xAxis.get("maximum"),
        xMin = xAxis.get("minimum"),
        yMax = yAxis.get("maximum"),
        yMin = yAxis.get("minimum"),
        xScaleFactor = dataWidth / (xMax - xMin),
        yScaleFactor = dataHeight / (yMax - yMin),
        dataLength,
        direction = this.get("direction"),
        i = 0,
        xMarkerPlane = [],
        yMarkerPlane = [],
        xMarkerPlaneOffset = this.get("xMarkerPlaneOffset"),
        yMarkerPlaneOffset = this.get("yMarkerPlaneOffset"),
        graphic = this.get("graphic");
    graphic.set("width", w);
    graphic.set("height", h);
    dataLength = xData.length;
    xOffset *= 0.5;
    yOffset *= 0.5;
    //Assuming a vertical graph has a range/category for its vertical axis.    
    if(direction === "vertical")
    {
        yData = yData.reverse();
    }
    this._leftOrigin = Math.round(((0 - xMin) * xScaleFactor) + leftPadding + xOffset);
    this._bottomOrigin = Math.round((dataHeight + topPadding + yOffset)); 
    if(yMin < 0)
    {
        this._bottomOrigin = this._bottomOrigin - ((0 - yMin) * yScaleFactor);
    }
    for (; i < dataLength; ++i) 
    {
        xValue = parseFloat(xData[i]);
        yValue = parseFloat(yData[i]);
        if(isNumber(xValue))
        {
            nextX = (((xValue - xMin) * xScaleFactor) + leftPadding + xOffset);
        }
        else
        {
            nextX = NaN;
        }
        if(isNumber(yValue))
        {
            nextY = ((dataHeight + topPadding + yOffset) - (yValue - yMin) * yScaleFactor);
        }
        else
        {
            nextY = NaN;
        }
        xcoords.push(nextX);
        ycoords.push(nextY);
        xMarkerPlane.push({start:nextX - xMarkerPlaneOffset, end: nextX + xMarkerPlaneOffset});
        yMarkerPlane.push({start:nextY - yMarkerPlaneOffset, end: nextY + yMarkerPlaneOffset});
    }
    this.set("xcoords", xcoords);
    this.set("ycoords", ycoords);
    this.set("xMarkerPlane", xMarkerPlane);
    this.set("yMarkerPlane", yMarkerPlane);
    this._dataLength = dataLength;
};
Y.ColumnSeries.prototype.setAreaData = setAreaData;