com.ohalo.cn.awt.JFreeChartTest3.java Source code

Introduction

Here is the source code for com.ohalo.cn.awt.JFreeChartTest3.java

Source

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package com.ohalo.cn.awt;

import java.awt.Font;
import java.io.FileOutputStream;
import java.io.OutputStream;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.title.LegendTitle;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.general.DefaultPieDataset;

public class JFreeChartTest3 {
    public static void main(String[] args) throws Exception {
        JFreeChart chart = ChartFactory.createPieChart("???", getDataset(), true, true,
                false);
        chart.setTitle(new TextTitle("??", new Font("", Font.BOLD + Font.ITALIC, 20)));

        LegendTitle legend = chart.getLegend(0);// Legend
        legend.setItemFont(new Font("", Font.BOLD, 14));
        PiePlot plot = (PiePlot) chart.getPlot();// Plot
        plot.setLabelFont(new Font("", Font.BOLD, 16));

        OutputStream os = new FileOutputStream("company.jpeg");// ??FileOutputStream?
        ChartUtilities.writeChartAsJPEG(os, chart, 1000, 800);
        // ??applicationchart??JPEG?3?4?

        os.close();// ?
    }

    private static DefaultPieDataset getDataset() {
        DefaultPieDataset dpd = new DefaultPieDataset(); // 
        dpd.setValue("?", 25); // ?
        dpd.setValue("", 25);
        dpd.setValue("?", 45);
        dpd.setValue("", 10);
        return dpd;
    }
}