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alexandre_ |
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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.charting.Plot");
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dojo.require("dojo.lang.common");
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dojo.require("dojo.charting.Axis");
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dojo.require("dojo.charting.Series");
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dojo.charting.RenderPlotSeries = {Singly:"single", Grouped:"grouped"};
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dojo.charting.Plot = function (xaxis, yaxis, series) {
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var id = "dojo-charting-plot-" + dojo.charting.Plot.count++;
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this.getId = function () {
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return id;
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};
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this.setId = function (key) {
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id = key;
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};
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this.axisX = null;
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this.axisY = null;
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this.series = [];
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this.dataNode = null;
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this.renderType = dojo.charting.RenderPlotSeries.Singly;
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if (xaxis) {
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this.setAxis(xaxis, "x");
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}
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if (yaxis) {
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this.setAxis(yaxis, "y");
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}
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if (series) {
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for (var i = 0; i < series.length; i++) {
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this.addSeries(series[i]);
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}
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}
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};
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dojo.charting.Plot.count = 0;
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dojo.extend(dojo.charting.Plot, {addSeries:function (series, plotter) {
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if (series.plotter) {
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this.series.push(series);
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} else {
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this.series.push({data:series, plotter:plotter || dojo.charting.Plotters["Default"]});
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}
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}, setAxis:function (axis, which) {
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if (which.toLowerCase() == "x") {
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this.axisX = axis;
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} else {
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if (which.toLowerCase() == "y") {
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this.axisY = axis;
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}
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}
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}, getRanges:function () {
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var xmin, xmax, ymin, ymax;
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xmin = ymin = Number.MAX_VALUE;
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xmax = ymax = Number.MIN_VALUE;
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for (var i = 0; i < this.series.length; i++) {
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var values = this.series[i].data.evaluate();
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for (var j = 0; j < values.length; j++) {
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var comp = values[j];
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xmin = Math.min(comp.x, xmin);
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ymin = Math.min(comp.y, ymin);
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xmax = Math.max(comp.x, xmax);
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ymax = Math.max(comp.y, ymax);
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}
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}
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return {x:{upper:xmax, lower:xmin}, y:{upper:ymax, lower:ymin}, toString:function () {
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return "[ x:" + xmax + " - " + xmin + ", y:" + ymax + " - " + ymin + "]";
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}};
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}, destroy:function () {
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var node = this.dataNode;
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while (node && node.childNodes && node.childNodes.length > 0) {
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node.removeChild(node.childNodes[0]);
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}
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this.dataNode = null;
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}});
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