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/*
        Copyright (c) 2004-2006, The Dojo Foundation
        All Rights Reserved.

        Licensed under the Academic Free License version 2.1 or above OR the
        modified BSD license. For more information on Dojo licensing, see:

                http://dojotoolkit.org/community/licensing.shtml
*/



dojo.provide("dojo.charting.Plot");
dojo.require("dojo.lang.common");
dojo.require("dojo.charting.Axis");
dojo.require("dojo.charting.Series");
dojo.charting.RenderPlotSeries = {Singly:"single", Grouped:"grouped"};
dojo.charting.Plot = function (xaxis, yaxis, series) {
        var id = "dojo-charting-plot-" + dojo.charting.Plot.count++;
        this.getId = function () {
                return id;
        };
        this.setId = function (key) {
                id = key;
        };
        this.axisX = null;
        this.axisY = null;
        this.series = [];
        this.dataNode = null;
        this.renderType = dojo.charting.RenderPlotSeries.Singly;
        if (xaxis) {
                this.setAxis(xaxis, "x");
        }
        if (yaxis) {
                this.setAxis(yaxis, "y");
        }
        if (series) {
                for (var i = 0; i < series.length; i++) {
                        this.addSeries(series[i]);
                }
        }
};
dojo.charting.Plot.count = 0;
dojo.extend(dojo.charting.Plot, {addSeries:function (series, plotter) {
        if (series.plotter) {
                this.series.push(series);
        } else {
                this.series.push({data:series, plotter:plotter || dojo.charting.Plotters["Default"]});
        }
}, setAxis:function (axis, which) {
        if (which.toLowerCase() == "x") {
                this.axisX = axis;
        } else {
                if (which.toLowerCase() == "y") {
                        this.axisY = axis;
                }
        }
}, getRanges:function () {
        var xmin, xmax, ymin, ymax;
        xmin = ymin = Number.MAX_VALUE;
        xmax = ymax = Number.MIN_VALUE;
        for (var i = 0; i < this.series.length; i++) {
                var values = this.series[i].data.evaluate();
                for (var j = 0; j < values.length; j++) {
                        var comp = values[j];
                        xmin = Math.min(comp.x, xmin);
                        ymin = Math.min(comp.y, ymin);
                        xmax = Math.max(comp.x, xmax);
                        ymax = Math.max(comp.y, ymax);
                }
        }
        return {x:{upper:xmax, lower:xmin}, y:{upper:ymax, lower:ymin}, toString:function () {
                return "[ x:" + xmax + " - " + xmin + ", y:" + ymax + " - " + ymin + "]";
        }};
}, destroy:function () {
        var node = this.dataNode;
        while (node && node.childNodes && node.childNodes.length > 0) {
                node.removeChild(node.childNodes[0]);
        }
        this.dataNode = null;
}});