Plot.js
上传用户:kimgenplus
上传日期:2016-06-05
资源大小:20877k
文件大小:2k
- /*
- 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;
- }});