chart.jsp

jCharts是一个100％基于Java的制图工具

<%@ page import="java.awt.*,org.jCharts.*,org.jCharts.chartData.*,org.jCharts.properties.*,org.jCharts.types.ChartType,org.jCharts.axisChart.*,org.jCharts.test.TestDataGenerator,org.jCharts.encoders.JPEGEncoder13,org.jCharts.properties.util.ChartFont,
					  org.jCharts.encoders.ServletEncoderHelper"%><%
/**************************************************************************************
* Copyright 2002 (C) Nathaniel G. Auvil. All Rights Reserved.
*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided
* that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright
*    statements and notices.  Redistributions must also contain a
*    copy of this document.
*
* 2. Redistributions in binary form must reproduce the
*    above copyright notice, this list of conditions and the
*    following disclaimer in the documentation and/or other
*    materials provided with the distribution.
*
* 3. The name "jCharts" or "Nathaniel G. Auvil" must not be used to
* 	  endorse or promote products derived from this Software without
* 	  prior written permission of Nathaniel G. Auvil.  For written
*    permission, please contact [e-mail]
*
* 4. Products derived from this Software may not be called "jCharts"
*    nor may "jCharts" appear in their names without prior written
*    permission of Nathaniel G. Auvil. jCharts is a registered
*    trademark of Nathaniel G. Auvil.
*
* 5. Due credit should be given to the jCharts Project
*    (http://jcharts.sourceforge.net/).
*
* THIS SOFTWARE IS PROVIDED BY Nathaniel G. Auvil AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
* jCharts OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
**********************************************************************************/

	try
	{
		//From AxisChartServlet.java:init()
		LegendProperties legendProperties = new LegendProperties();
		ChartProperties chartProperties = new ChartProperties();
		AxisProperties axisProperties = new AxisProperties( false );

		ChartFont axisScaleFont = new ChartFont( new Font( "Georgia Negreta cursiva", Font.PLAIN, 13 ), Color.black );
		axisProperties.getXAxisProperties().setScaleChartFont( axisScaleFont );
		axisProperties.getYAxisProperties().setScaleChartFont( axisScaleFont );

		ChartFont axisTitleFont = new ChartFont( new Font( "Arial Narrow", Font.PLAIN, 14 ), Color.black );
		axisProperties.getXAxisProperties().setTitleChartFont( axisTitleFont );
		axisProperties.getYAxisProperties().setTitleChartFont( axisTitleFont );

		Stroke[] strokes= { LineChartProperties.DEFAULT_LINE_STROKE, LineChartProperties.DEFAULT_LINE_STROKE, LineChartProperties.DEFAULT_LINE_STROKE };
		Shape[] shapes= { PointChartProperties.SHAPE_TRIANGLE,PointChartProperties.SHAPE_DIAMOND, PointChartProperties.SHAPE_CIRCLE };
		LineChartProperties lineChartProperties = new LineChartProperties(strokes,shapes);
		
		String[] xAxisLabels= { "1998", "1999", "2000", "2001", "2002", "2003", "2004"};
		String xAxisTitle= "Years";
		String yAxisTitle= "Problems";
		String title= "Micro$oft At Work";
		DataSeries dataSeries = new DataSeries( xAxisLabels, xAxisTitle, yAxisTitle,title );
		
				
		//From AxisChartServlet.java:createAxisChartDataSet
		double[][] data= TestDataGenerator.getRandomNumbers( 3, 7, 200, 500 );
		String[] legendLabels= { "Bugs", "Security Holes", "Backdoors" };
		Paint[] paints= TestDataGenerator.getRandomPaints( 3 );
		AxisChartDataSet acds = new AxisChartDataSet(data, legendLabels, paints,ChartType.LINE, lineChartProperties );
		dataSeries.addIAxisPlotDataSet(acds);
		AxisChart axisChart = new AxisChart(dataSeries, chartProperties, axisProperties,legendProperties, 550, 360);
	
		ServletEncoderHelper.encodeJPEG13(axisChart, 1.0f, response);
	
	}
	catch(Exception e)
	{
		System.out.println(e);
	}
%>