PlotKit.Layout = function()

in web/servicemix-web-console/src/main/webapp/js/plotkit/Layout.js [51:111]

• 48 lines of code
• 4 McCabe index (conditional complexity)

PlotKit.Layout = function(style, options) {
    
    this.options = {
        "barWidthFillFraction": 0.75,
        "xOriginIsZero": true,
        "yOriginIsZero": true,
        "xAxis": null, // [xmin, xmax]
        "yAxis": null, // [ymin, ymax]
        "xTicks": null, // [{label: "somelabel", v: value}, ..] (label opt.)
        "yTicks": null, // [{label: "somelabel", v: value}, ..] (label opt.)
        "xNumberOfTicks": 10,
        "yNumberOfTicks": 5,
        "xTickPrecision": 1,
        "yTickPrecision": 3,
        "pieRadius": 0.4
    };

    // valid external options : TODO: input verification
    this.style = style; 
    MochiKit.Base.update(this.options, options ? options : {});

    // externally visible states
    // overriden if xAxis and yAxis are set in options
    if (!MochiKit.Base.isUndefinedOrNull(this.options.xAxis)) {
        this.minxval = this.options.xAxis[0];
        this.maxxval = this.options.xAxis[1];
        this.xscale = this.maxxval - this.minxval; 
    }
    else {
        this.minxval = 0;
        this.maxxval = null;
        this.xscale = null; // val -> pos factor (eg, xval * xscale = xpos)
    }

    if (!MochiKit.Base.isUndefinedOrNull(this.options.yAxis)) {
        this.minyval = this.options.yAxis[0];
        this.maxyval = this.options.yAxis[1];
        this.yscale = this.maxyval - this.maxymin;
    }
    else {
        this.minyval = 0;
        this.maxyval = null;
        this.yscale = null;
    }

    this.bars = new Array();   // array of bars to plot for bar charts
    this.points = new Array(); // array of points to plot for line plots
    this.slices = new Array(); // array of slices to draw for pie charts

    this.xticks = new Array();
    this.yticks = new Array();

    // internal states
    this.datasets = new Array();
    this.minxdelta = 0;
    this.xrange = 1;
    this.yrange = 1;

    this.hitTestCache = {x2maxy: null};
    
};