CHARTDIRECTOR柱状图使用方法
ChartDirector除了一个英文件的帮助以外,也没有再提供JAVA DOC形式的文档,为了方便,写以下一个例子说明使用ChartDirector生成柱状图的方法.jsp方式实质与JAVA方式没有区别,这里是我从JSP中取的代码(JSP改起来方便,不过手动)
代码如下:
//output the chart
String chart1URL = c.makeSession(request, "chart1");
代码如下:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" import="ChartDirector.*;"%>
<%
request.setCharacterEncoding("UTF-8");
pageEncoding="UTF-8" import="ChartDirector.*;"%>
<%
request.setCharacterEncoding("UTF-8");
//以两个系列数据为例
double[] data = {185, 156, 179.5, 211, 123};
double[] data1 = {55, 76, 34.5, 88, 43};
//数据列名
String[] labels = {"一月", "二月", "三月", "四月", "五月"};
double[] data = {185, 156, 179.5, 211, 123};
double[] data1 = {55, 76, 34.5, 88, 43};
//数据列名
String[] labels = {"一月", "二月", "三月", "四月", "五月"};
//生成图片大小 250 x 250
XYChart c = new XYChart(550, 350);
//图标题
c.addTitle("第一个图","",15);
//支持中文
c.setDefaultFonts("SIMSUN.TTC","simhei.ttf");
//图表在图片中的定位及区域大小
c.setPlotArea(30, 40, 400, 250);
XYChart c = new XYChart(550, 350);
//图标题
c.addTitle("第一个图","",15);
//支持中文
c.setDefaultFonts("SIMSUN.TTC","simhei.ttf");
//图表在图片中的定位及区域大小
c.setPlotArea(30, 40, 400, 250);
//=========================
//加入单个数据
//BarLayer layer = c.addBarLayer(data,0xff3456,"我的测试");
//=========================
//加入多个BAR数据(多个datasets)
BarLayer layer = c.addBarLayer2(Chart.Side, 3);
layer.addDataSet(data, 0xff8080, "我测试1");
layer.addDataSet(data1, 0x008080, "你也测2");
//3d化
layer.set3D();
//设置BAR边框形式
layer.setBarShape(0);
//bar宽度
layer.setBarWidth(50);
//设置BAR边框颜色
//layer.setBorderColor(0xff9999);
//图例形式
layer.setLegend(1);
//每个BAR顶部加入数据显示
layer.setAggregateLabelStyle();
//设置BAR底部的名称显示
TextBox t = c.xAxis().setLabels(labels);
//名称文字大小
t.setFontSize(9);
//加图例
//LegendBox legend = c.addLegend(260, 120,true);
//legend.addKey("钱财",0xff8080);
//图例位置
c.addLegend(450, 120,true);
//BarLayer layer = c.addBarLayer(data,0xff3456,"我的测试");
//=========================
//加入多个BAR数据(多个datasets)
BarLayer layer = c.addBarLayer2(Chart.Side, 3);
layer.addDataSet(data, 0xff8080, "我测试1");
layer.addDataSet(data1, 0x008080, "你也测2");
//3d化
layer.set3D();
//设置BAR边框形式
layer.setBarShape(0);
//bar宽度
layer.setBarWidth(50);
//设置BAR边框颜色
//layer.setBorderColor(0xff9999);
//图例形式
layer.setLegend(1);
//每个BAR顶部加入数据显示
layer.setAggregateLabelStyle();
//设置BAR底部的名称显示
TextBox t = c.xAxis().setLabels(labels);
//名称文字大小
t.setFontSize(9);
//加图例
//LegendBox legend = c.addLegend(260, 120,true);
//legend.addKey("钱财",0xff8080);
//图例位置
c.addLegend(450, 120,true);
//output the chart
String chart1URL = c.makeSession(request, "chart1");
//include tool tip for the chart
String imageMap1 = c.getHTMLImageMap("#", "", "title='{xLabel}: US${value}K'");
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>图表测试</title>
</head>
<body>
<h1>中文</h1>
String imageMap1 = c.getHTMLImageMap("#", "", "title='{xLabel}: US${value}K'");
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>图表测试</title>
</head>
<body>
<h1>中文</h1>
<hr color="#000080">
<br>
<img src='<%=response.encodeURL("getchart.jsp?"+chart1URL)%>'
usemap="#map1" border="0">
<map name="map1"><%=imageMap1%></map>
<img src='<%=response.encodeURL("getchart.jsp?"+chart1URL)%>'
usemap="#map1" border="0">
<map name="map1"><%=imageMap1%></map>
</body>
</html>
</html>