linechartdemo5.java

大家打开看看啊, 很有用的东西

/* ======================================
 * JFreeChart : a free Java chart library
 * ======================================
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 * Project Lead:  David Gilbert ([e-mail]);
 *
 * (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * -------------------
 * LineChartDemo5.java
 * -------------------
 * (C) Copyright 2003 by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: LineChartDemo5.java,v 1.11 2003/07/10 14:18:10 mungady Exp $
 *
 * Changes
 * -------
 * 23-Apr-2003 : Version 1 (DG);
 *
 */

package org.jfree.chart.demo;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Polygon;
import java.awt.Shape;
import java.awt.geom.Rectangle2D;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.StandardLegend;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.DefaultDrawingSupplier;
import org.jfree.chart.plot.DrawingSupplier;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.LineAndShapeRenderer;
import org.jfree.data.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
 * A line chart demo showing the use of a custom drawing supplier.
 *
 * @author David Gilbert
 */
public class LineChartDemo5 extends ApplicationFrame {

    /**
     * Creates a new demo.
     *
     * @param title  the frame title.
     */
    public LineChartDemo5(String title) {

        super(title);

        // row keys...
        String series1 = "First";
        String series2 = "Second";
        String series3 = "Third";

        // column keys...
        String type1 = "Type 1";
        String type2 = "Type 2";
        String type3 = "Type 3";
        String type4 = "Type 4";
        String type5 = "Type 5";
        String type6 = "Type 6";
        String type7 = "Type 7";
        String type8 = "Type 8";

        // create the dataset...
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();

        dataset.addValue(1.0, series1, type1);
        dataset.addValue(4.0, series1, type2);
        dataset.addValue(3.0, series1, type3);
        dataset.addValue(5.0, series1, type4);
        dataset.addValue(5.0, series1, type5);
        dataset.addValue(7.0, series1, type6);
        dataset.addValue(7.0, series1, type7);
        dataset.addValue(8.0, series1, type8);

        dataset.addValue(5.0, series2, type1);
        dataset.addValue(7.0, series2, type2);
        dataset.addValue(6.0, series2, type3);
        dataset.addValue(8.0, series2, type4);
        dataset.addValue(4.0, series2, type5);
        dataset.addValue(4.0, series2, type6);
        dataset.addValue(2.0, series2, type7);
        dataset.addValue(1.0, series2, type8);

        dataset.addValue(4.0, series3, type1);
        dataset.addValue(3.0, series3, type2);
        dataset.addValue(2.0, series3, type3);
        dataset.addValue(3.0, series3, type4);
        dataset.addValue(6.0, series3, type5);
        dataset.addValue(3.0, series3, type6);
        dataset.addValue(4.0, series3, type7);
        dataset.addValue(3.0, series3, type8);

        // create the chart...
        JFreeChart chart = ChartFactory.createLineChart(
            "Line Chart Demo 5",      // chart title
            "Type",                   // domain axis label
            "Value",                  // range axis label
            dataset,                  // data
            PlotOrientation.VERTICAL, // orientation
            true,                     // include legend
            true,                     // tooltips
            false                     // urls
        );

        // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
        StandardLegend legend = (StandardLegend) chart.getLegend();
        legend.setDisplaySeriesShapes(true);

        Shape[] shapes = new Shape[3];
        int[] xpoints;
        int[] ypoints;

        // right-pointing triangle
        xpoints = new int[] {-3, 3, -3};
        ypoints = new int[] {-3, 0, 3};
        shapes[0] = new Polygon(xpoints, ypoints, 3);

        // vertical rectangle
        shapes[1] = new Rectangle2D.Double(-2, -3, 3, 6);

        // left-pointing triangle
        xpoints = new int[] {-3, 3, 3};
        ypoints = new int[] {0, -3, 3};
        shapes[2] = new Polygon(xpoints, ypoints, 3);

        DrawingSupplier supplier = new DefaultDrawingSupplier(
            DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE,
            DefaultDrawingSupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE,
            DefaultDrawingSupplier.DEFAULT_STROKE_SEQUENCE,
            DefaultDrawingSupplier.DEFAULT_OUTLINE_STROKE_SEQUENCE,
            shapes
        );
        CategoryPlot plot = chart.getCategoryPlot();
        plot.setDrawingSupplier(supplier);

        chart.setBackgroundPaint(Color.yellow);

        // set the stroke for each series...
        plot.getRenderer().setSeriesStroke(0, new BasicStroke(2.0f,
                                                              BasicStroke.CAP_ROUND,
                                                              BasicStroke.JOIN_ROUND,
                                                              1.0f,
                                                              new float[] {10.0f, 6.0f},
                                                              0.0f));
        plot.getRenderer().setSeriesStroke(1, new BasicStroke(2.0f,
                                                              BasicStroke.CAP_ROUND,
                                                              BasicStroke.JOIN_ROUND,
                                                              1.0f,
                                                              new float[] {6.0f, 6.0f},
                                                              0.0f));
        plot.getRenderer().setSeriesStroke(2, new BasicStroke(2.0f,
                                                              BasicStroke.CAP_ROUND,
                                                              BasicStroke.JOIN_ROUND,
                                                              1.0f,
                                                              new float[] {2.0f, 6.0f},
                                                              0.0f));

        // customise the renderer...
        LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
        renderer.setDrawShapes(true);
        renderer.setItemLabelsVisible(Boolean.TRUE);

        // customise the domain axis...
        CategoryAxis domainAxis = plot.getDomainAxis();
        domainAxis.setVerticalCategoryLabels(true);

        // customise the range axis...
        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        rangeAxis.setAutoRangeIncludesZero(false);
        rangeAxis.setUpperMargin(0.12);

        // OPTIONAL CUSTOMISATION COMPLETED.

        // add the chart to a panel...
        ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
        setContentPane(chartPanel);

    }

    /**
     * Starting point for the demonstration application.
     *
     * @param args  ignored.
     */
    public static void main(String[] args) {

        LineChartDemo5 demo = new LineChartDemo5("Line Chart Demo 5");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}