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package cn.teammodel.utils;
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import org.jfree.chart.ChartFactory;
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import org.jfree.chart.JFreeChart;
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import org.jfree.chart.StandardChartTheme;
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import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
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import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
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import org.jfree.chart.plot.CategoryPlot;
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import org.jfree.chart.plot.PiePlot;
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import org.jfree.chart.plot.PlotOrientation;
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import org.jfree.chart.renderer.category.BarRenderer;
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import org.jfree.chart.renderer.category.LineAndShapeRenderer;
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import org.jfree.chart.renderer.category.StandardBarPainter;
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import org.jfree.data.category.DefaultCategoryDataset;
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import org.jfree.data.general.DefaultPieDataset;
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import java.awt.*;
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import java.text.DecimalFormat;
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import java.text.NumberFormat;
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/**
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* 生成图表工具类
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* @author winter
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* @create 2023-10-30 11:12
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*/
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public class ChartUtil {
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private static final Color[] BAR_COLORS = new Color[]{
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new Color(79,129,189),
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new Color(192, 80, 77),
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new Color(155, 187, 89),
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};
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private static final Color[] LINE_COLORS = new Color[]{
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new Color(237, 123, 46),
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new Color(90, 154, 213),
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new Color(164, 164, 164),
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};
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private static final Color[] PIE_COLORS = new Color[]{
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new Color(75, 172, 198),
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new Color(128, 100, 162),
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new Color(155, 187, 89),
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new Color(192, 80, 77),
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new Color(79, 129, 189),
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new Color(44, 77, 117),
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new Color(247, 150, 70),
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new Color(165, 165, 165),
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};
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private static StandardChartTheme initChartTheme(){
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StandardChartTheme currentTheme = new StandardChartTheme("JFree");
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// 横轴纵轴标题文字大小
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currentTheme.setLargeFont(new Font("宋体", Font.BOLD, 15));
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// 横轴纵轴数值文字大小
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currentTheme.setRegularFont(new Font("宋体", Font.PLAIN, 13));
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currentTheme.setExtraLargeFont(new Font("宋体", Font.BOLD, 20));
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// 背景颜色
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currentTheme.setPlotBackgroundPaint(new Color(255, 255, 204, 0));
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// 边框线条
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currentTheme.setPlotOutlinePaint(new Color(0, 0, 0, 0));
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// 网格线条
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currentTheme.setRangeGridlinePaint(new Color(78, 74, 74));
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return currentTheme;
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}
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/**
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* 线图
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*
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* @param title 标题
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* @param categoryAxisLabel 分类标签
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* @param valueAxisLabel 数值标签
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* @param dataset 数据集
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* @return org.jfree.chart.JFreeChart
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*/
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public static JFreeChart lineChart(String title, String categoryAxisLabel, String valueAxisLabel, DefaultCategoryDataset dataset){
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ChartFactory.setChartTheme(initChartTheme());
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JFreeChart chart = ChartFactory.createLineChart(
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title,
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categoryAxisLabel,
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valueAxisLabel,
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dataset,
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PlotOrientation.VERTICAL,
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true,
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true,
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false
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);
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CategoryPlot plot = chart.getCategoryPlot();
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LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
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// 折现点显示数值
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renderer.setDefaultItemLabelsVisible(true);
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renderer.setDefaultItemLabelGenerator(new StandardCategoryItemLabelGenerator());
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// 更改线条颜色
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for (int i = 0; i < dataset.getRowKeys().size(); i++) {
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renderer.setSeriesPaint(i, LINE_COLORS[i]);
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}
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return chart;
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}
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/**
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* 柱状图
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*
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* @param title
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* @param categoryAxisLabel
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* @param valueAxisLabel
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* @param dataset 数据集
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* @return org.jfree.chart.JFreeChart
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*/
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public static JFreeChart barChart(String title, String categoryAxisLabel, String valueAxisLabel, DefaultCategoryDataset dataset){
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ChartFactory.setChartTheme(initChartTheme());
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JFreeChart chart = ChartFactory.createBarChart(
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title,
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categoryAxisLabel,
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valueAxisLabel,
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dataset,
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PlotOrientation.VERTICAL,
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true,
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true,
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false
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);
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CategoryPlot plot = chart.getCategoryPlot();
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BarRenderer renderer = (BarRenderer) plot.getRenderer();
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// 纯色显示
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renderer.setBarPainter(new StandardBarPainter());
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// 柱子上显示小数字
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renderer.setDefaultItemLabelsVisible(true);
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renderer.setDefaultItemLabelGenerator(new StandardCategoryItemLabelGenerator());
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// 设置柱子间隔
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renderer.setItemMargin(0.0);
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// 设置柱子颜色
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for (int i = 0; i < dataset.getRowKeys().size(); i++) {
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renderer.setSeriesPaint(i, BAR_COLORS[i]);
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}
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return chart;
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}
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/**
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* 饼图
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* @param title
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* @param dataset
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* @return org.jfree.chart.JFreeChart
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*/
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public static JFreeChart pieChart(String title, DefaultPieDataset dataset){
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ChartFactory.setChartTheme(initChartTheme());
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JFreeChart chart = ChartFactory.createPieChart(
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title,
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dataset,
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true,
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true,
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false
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);
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PiePlot plot = (PiePlot) chart.getPlot();
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// 设置扇区颜色
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for (int i = 0; i < dataset.getKeys().size(); i++) {
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plot.setSectionPaint(dataset.getKey(i), PIE_COLORS[i]);
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}
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// 设置扇区的线条颜色
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plot.setDefaultSectionOutlinePaint(new Color(255, 255, 255));
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// 设置扇区的线条大小
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plot.setDefaultSectionOutlineStroke(new BasicStroke(3));
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// 设置标签颜色
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plot.setLabelLinkPaint(new Color(255,255,255, 0));
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// 设置标签背景色
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plot.setLabelBackgroundPaint(new Color(255, 255, 255,0));
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// 设置标签线条颜色
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plot.setLabelOutlinePaint(new Color(255, 255, 255, 0));
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// 设置标签阴影颜色
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plot.setLabelShadowPaint(new Color(255, 255, 255, 0));
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// 设置饼图阴影颜色
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plot.setShadowPaint(new Color(255, 255, 255, 0));
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// 添加标签数字百分比显示
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plot.setLabelGenerator(new StandardPieSectionLabelGenerator(("{0}{2}"), NumberFormat.getNumberInstance(),new DecimalFormat("0.00%")));
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return chart;
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}
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}
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