我们可以在Grouped Stacked Bar Chart上绘制折线图
我正在尝试创建一个GroupedStackBar图表，其中显示了每个产品过去三个月的每个客户的收入，并添加了描述每个时段与客户完成的会议的折线图。我正在使用JasperReports创建一个PDF报告，使用常用的图表定制器来准备它。
下面的快照推测了我想要创建的图表：
报告需要为每个客户描绘月度收入和会议。同样，显示Client1提供了X个月的收入，并在11月举行了M次会议，Y收入和N会议在12月举行上..
所以，我的X轴有两个分组 - 上个季度的客户和月份。此外，收入进一步与产品相关。所以，我有点合并两个不同的数据集 - 每个客户的收入计量，月份，每个客户的产品与会议的度量，构建图表的月份。
我为生成图表而创建的示例程序：
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.SubCategoryAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.GroupedStackedBarRenderer;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.KeyToGroupMap;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
public class GroupedStackedBarLineChart extends ApplicationFrame {
public GroupedStackedBarLineChart(final String title) {
super(title);
// final JFreeChart chart = constructBarOverLineChart();
final JFreeChart chart = constructLineOverBarChart();
final ChartPanel panel = new ChartPanel(chart);
setContentPane(panel);
}
private JFreeChart constructLineOverBarChart() {
final JFreeChart chart = ChartFactory.createLineChart(
"Stacked Grouped Bar Line Chart", "Products/Month",
"Meetings/Month", fetchMeetingDataSet(),
PlotOrientation.VERTICAL, true, true, false);
final KeyToGroupMap map = new KeyToGroupMap("Jan13");
map.mapKeyToGroup("Jan13 (Product1)", "Jan13");
map.mapKeyToGroup("Jan13 (Product2)", "Jan13");
map.mapKeyToGroup("Jan13 (Product3)", "Jan13");
map.mapKeyToGroup("Feb13 (Product1)", "Feb13");
map.mapKeyToGroup("Feb13 (Product2)", "Feb13");
map.mapKeyToGroup("Feb13 (Product3)", "Feb13");
map.mapKeyToGroup("Mar13 (Product1)", "Mar13");
map.mapKeyToGroup("Mar13 (Product2)", "Mar13");
map.mapKeyToGroup("Mar13 (Product3)", "Mar13");
final GroupedStackedBarRenderer renderer = new GroupedStackedBarRenderer();
renderer.setSeriesToGroupMap(map);
renderer.setItemMargin(0.076);
final SubCategoryAxis domainAxis = new SubCategoryAxis("Products/Month");
domainAxis.addSubCategory("Jan13");
domainAxis.addSubCategory("Feb13");
domainAxis.addSubCategory("Mar13");
domainAxis.setCategoryMargin(0.28);
final CategoryPlot subPlot1 = (CategoryPlot) chart.getPlot();
subPlot1.setDataset(1, fetchRevenueDataSet());
subPlot1.setDomainAxis(domainAxis);
final ValueAxis revenueAxis = new NumberAxis("Revenue");
subPlot1.setRangeAxis(1, revenueAxis);
subPlot1.setRenderer(1, renderer);
return chart;
}
private JFreeChart constructBarOverLineChart() {
final JFreeChart chart = ChartFactory.createStackedBarChart(
"Stacked Grouped Bar Line Chart", "Clients", "Revenue",
fetchRevenueDataSet(), PlotOrientation.VERTICAL, true, true,
false);
final KeyToGroupMap map = new KeyToGroupMap("Jan13");
map.mapKeyToGroup("Jan13 (Product1)", "Jan13");
map.mapKeyToGroup("Jan13 (Product2)", "Jan13");
map.mapKeyToGroup("Jan13 (Product3)", "Jan13");
map.mapKeyToGroup("Feb13 (Product1)", "Feb13");
map.mapKeyToGroup("Feb13 (Product2)", "Feb13");
map.mapKeyToGroup("Feb13 (Product3)", "Feb13");
map.mapKeyToGroup("Mar13 (Product1)", "Mar13");
map.mapKeyToGroup("Mar13 (Product2)", "Mar13");
map.mapKeyToGroup("Mar13 (Product3)", "Mar13");
final GroupedStackedBarRenderer renderer = new GroupedStackedBarRenderer();
renderer.setSeriesToGroupMap(map);
renderer.setItemMargin(0.076);
final SubCategoryAxis domainAxis = new SubCategoryAxis("Products/Month");
domainAxis.addSubCategory("Jan13");
domainAxis.addSubCategory("Feb13");
domainAxis.addSubCategory("Mar13");
domainAxis.setCategoryMargin(0.28);
final CategoryPlot subPlot1 = (CategoryPlot) chart.getPlot();
subPlot1.setDomainAxis(domainAxis);
subPlot1.setRenderer(renderer);
final ValueAxis meetingAxis = new NumberAxis("Meetings");
subPlot1.setDataset(1, fetchMeetingDataSet());
// subPlot1.mapDatasetToDomainAxis(1, 1);
subPlot1.setRangeAxis(1, meetingAxis);
subPlot1.setRangeAxisLocation(0, AxisLocation.BOTTOM_OR_LEFT);
subPlot1.setRangeAxisLocation(1, AxisLocation.TOP_OR_RIGHT);
subPlot1.setRenderer(1, new LineAndShapeRenderer(true, false));
return chart;
}
private CategoryDataset fetchRevenueDataSet() {
final DefaultCategoryDataset revenueDataSet = new DefaultCategoryDataset();
revenueDataSet.addValue(20.3, "Jan13 (Product1)", "Client1");
revenueDataSet.addValue(27.2, "Jan13 (Product2)", "Client1");
revenueDataSet.addValue(19.7, "Jan13 (Product3)", "Client1");
revenueDataSet.addValue(19.4, "Feb13 (Product1)", "Client1");
revenueDataSet.addValue(10.9, "Feb13 (Product2)", "Client1");
revenueDataSet.addValue(18.4, "Feb13 (Product3)", "Client1");
revenueDataSet.addValue(16.5, "Mar13 (Product1)", "Client1");
revenueDataSet.addValue(15.9, "Mar13 (Product2)", "Client1");
revenueDataSet.addValue(16.1, "Mar13 (Product3)", "Client1");
revenueDataSet.addValue(23.3, "Jan13 (Product1)", "Client2");
revenueDataSet.addValue(16.2, "Jan13 (Product2)", "Client2");
revenueDataSet.addValue(28.7, "Jan13 (Product3)", "Client2");
revenueDataSet.addValue(12.7, "Feb13 (Product1)", "Client2");
revenueDataSet.addValue(17.9, "Feb13 (Product2)", "Client2");
revenueDataSet.addValue(12.6, "Feb13 (Product3)", "Client2");
revenueDataSet.addValue(15.4, "Mar13 (Product1)", "Client2");
revenueDataSet.addValue(21.0, "Mar13 (Product2)", "Client2");
revenueDataSet.addValue(11.1, "Mar13 (Product3)", "Client2");
revenueDataSet.addValue(23.8, "Jan13 (Product1)", "Client3");
revenueDataSet.addValue(23.4, "Jan13 (Product2)", "Client3");
revenueDataSet.addValue(19.3, "Jan13 (Product3)", "Client3");
revenueDataSet.addValue(11.9, "Feb13 (Product1)", "Client3");
revenueDataSet.addValue(31.0, "Feb13 (Product2)", "Client3");
revenueDataSet.addValue(22.7, "Feb13 (Product3)", "Client3");
revenueDataSet.addValue(15.3, "Mar13 (Product1)", "Client3");
revenueDataSet.addValue(14.4, "Mar13 (Product2)", "Client3");
revenueDataSet.addValue(25.3, "Mar13 (Product3)", "Client3");
return revenueDataSet;
}
private CategoryDataset fetchMeetingDataSet() {
final DefaultCategoryDataset meetingDataSet = new DefaultCategoryDataset();
meetingDataSet.addValue(20, "Jan13", "Client1");
meetingDataSet.addValue(8, "Feb13", "Client1");
meetingDataSet.addValue(35, "Mar13", "Client1");
meetingDataSet.addValue(7, "Jan13", "Client2");
meetingDataSet.addValue(20, "Feb13", "Client2");
meetingDataSet.addValue(12, "Mar13", "Client2");
meetingDataSet.addValue(25, "Jan13", "Client3");
meetingDataSet.addValue(17, "Feb13", "Client3");
meetingDataSet.addValue(7, "Mar13", "Client3");
return meetingDataSet;
}
public static void main(String[] args) {
GroupedStackedBarLineChart demo = new GroupedStackedBarLineChart(
"Client Revenue and Meetings");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
上述程序的输出未按要求显示图表。相反，折线图显示 Jan13 的P次会议，Client1，Q会议 Jan13 与Client2， Jan13 的R次会议， 2月13日Client3和X会议Client2次Y次会议for Feb13 with Client2等等。也就是说，不尊重客户端的分组。我尝试在折线图数据集中改变行键/列键而没有收益。
请指点我正确地获得折线图？
感谢。
1 个答案:
答案 0 :(得分：2)
我的第一个想法是实现一个自定义渲染器 - 一个混合使用GroupStackedBarRenderer和LineAndShapeRenderer - 但下面的伪分组更容易;）
所以我用StackeBarRenderer替换了GroupedStackedBarRenderer，并在组之间插入了一个虚拟列。 客户的分组类别标签由第二个域轴完成 - 幸运的是，无论使用多少客户/组，第二类轴的标签都集中在第一轴的组内...
import java.awt.Graphics2D;
import org.apache.commons.beanutils.PropertyUtilsBean;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.StackedBarRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.text.G2TextMeasurer;
import org.jfree.text.TextBlock;
import org.jfree.text.TextUtilities;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.RefineryUtilities;
public class GroupedStackedBarLineChart extends ApplicationFrame {
public GroupedStackedBarLineChart(final String title) {
super(title);
// final JFreeChart chart = constructBarOverLineChart();
final JFreeChart chart = constructLineOverBarChart();
final ChartPanel panel = new ChartPanel(chart);
setContentPane(panel);
}
private JFreeChart constructLineOverBarChart() {
final JFreeChart chart = ChartFactory.createLineChart(
"Stacked Grouped Bar Line Chart", "",
"Meetings/Month", fetchMeetingDataSet(),
PlotOrientation.VERTICAL, true, true, false);
final StackedBarRenderer renderer = new StackedBarRenderer();
renderer.setItemMargin(0.076);
final CategoryPlot cp = chart.getCategoryPlot();
cp.setDataset(1, fetchRevenueDataSet());
final ValueAxis revenueAxis = new NumberAxis("Revenue");
cp.setRangeAxis(1, revenueAxis);
cp.setRenderer(1, renderer);
chopCategoryLabels(cp);
insertFakeGrouping(cp);
CategoryAxis ca = new CategoryAxis("Products/Month");
cp.setDomainAxis(1, ca);
cp.setDataset(2, anotherDataSet());
cp.mapDatasetToDomainAxis(2, 1);
cp.setDomainAxisLocation(1, AxisLocation.BOTTOM_OR_LEFT);
ca.setAxisLineVisible(false);
ca.setTickMarksVisible(false);
return chart;
}
private void insertFakeGrouping(CategoryPlot cp) {
for (int i=0; i<cp.getDatasetCount(); i++) {
assert(cp.getDataset(i) instanceof DefaultCategoryDataset);
CategoryDataset cd = cp.getDataset(i);
Comparable<?> firstRow = cd.getRowKey(0);
DefaultCategoryDataset dcd = new DefaultCategoryDataset();
for (int col=0; col<cd.getColumnCount(); col++) {
if (col > 0) {
String c1 = cd.getColumnKey(col-1).toString();
c1 = c1.substring(c1.indexOf('_'));
String c2 = cd.getColumnKey(col).toString();
c2 = c2.substring(c2.indexOf('_'));
if (!c1.equals(c2)) {
dcd.addValue(null, firstRow, "dummy"+col);
}
}
for (int row=0; row<cd.getRowCount(); row++) {
Comparable<?> rowKey = cd.getRowKey(row);
Comparable<?> columnKey = cd.getColumnKey(col);
dcd.addValue(cd.getValue(rowKey, columnKey), rowKey, columnKey);
}
}
cp.setDataset(i, dcd);
}
}
private void chopCategoryLabels(CategoryPlot cp) {
CategoryAxis caOld = cp.getDomainAxis();
CategoryAxis caNew = new CategoryAxis(){
protected TextBlock createLabel(Comparable category, float width,
RectangleEdge edge, Graphics2D g2) {
String cat = category.toString();
cat = (cat.contains("_"))
? cat.substring(0, cat.indexOf('_'))
: "";
TextBlock label = TextUtilities.createTextBlock(cat,
getTickLabelFont(category), getTickLabelPaint(category), width,
getMaximumCategoryLabelLines(), new G2TextMeasurer(g2));
return label;
}
};
try {
new PropertyUtilsBean().copyProperties(caNew, caOld);
cp.setDomainAxis(0, caNew);
} catch (Exception e) {
throw new RuntimeException("not really?", e);
}
}
private CategoryDataset anotherDataSet() {
final DefaultCategoryDataset ds = new DefaultCategoryDataset();
ds.addValue(1, "1", "Client 1");
ds.addValue(1, "2", "Client 2");
ds.addValue(1, "3", "Client 3");
return ds;
}
private CategoryDataset fetchRevenueDataSet() {
final DefaultCategoryDataset revenueDataSet = new DefaultCategoryDataset();
revenueDataSet.addValue(20.3, "Product 1", "Jan13_1");
revenueDataSet.addValue(27.2, "Product 2", "Jan13_1");
revenueDataSet.addValue(19.7, "Product 3", "Jan13_1");
revenueDataSet.addValue(19.4, "Product 1", "Feb13_1");
revenueDataSet.addValue(10.9, "Product 2", "Feb13_1");
revenueDataSet.addValue(18.4, "Product 3", "Feb13_1");
revenueDataSet.addValue(16.5, "Product 1", "Mar13_1");
revenueDataSet.addValue(15.9, "Product 2", "Mar13_1");
revenueDataSet.addValue(16.1, "Product 3", "Mar13_1");
revenueDataSet.addValue(23.3, "Product 1", "Jan13_2");
revenueDataSet.addValue(16.2, "Product 2", "Jan13_2");
revenueDataSet.addValue(28.7, "Product 3", "Jan13_2");
revenueDataSet.addValue(12.7, "Product 1", "Feb13_2");
revenueDataSet.addValue(17.9, "Product 2", "Feb13_2");
revenueDataSet.addValue(12.6, "Product 3", "Feb13_2");
revenueDataSet.addValue(15.4, "Product 1", "Mar13_2");
revenueDataSet.addValue(21.0, "Product 2", "Mar13_2");
revenueDataSet.addValue(11.1, "Product 3", "Mar13_2");
revenueDataSet.addValue(23.8, "Product 1", "Jan13_3");
revenueDataSet.addValue(23.4, "Product 2", "Jan13_3");
revenueDataSet.addValue(19.3, "Product 3", "Jan13_3");
revenueDataSet.addValue(11.9, "Product 1", "Feb13_3");
revenueDataSet.addValue(31.0, "Product 2", "Feb13_3");
revenueDataSet.addValue(22.7, "Product 3", "Feb13_3");
revenueDataSet.addValue(15.3, "Product 1", "Mar13_3");
revenueDataSet.addValue(14.4, "Product 2", "Mar13_3");
revenueDataSet.addValue(25.3, "Product 3", "Mar13_3");
return revenueDataSet;
}
private CategoryDataset fetchMeetingDataSet() {
final DefaultCategoryDataset meetingDataSet = new DefaultCategoryDataset();
meetingDataSet.addValue(20, "Meetings", "Jan13_1");
meetingDataSet.addValue(8, "Meetings", "Feb13_1");
meetingDataSet.addValue(35, "Meetings", "Mar13_1");
meetingDataSet.addValue(7, "Meetings", "Jan13_2");
meetingDataSet.addValue(20, "Meetings", "Feb13_2");
meetingDataSet.addValue(12, "Meetings", "Mar13_2");
meetingDataSet.addValue(25, "Meetings", "Jan13_3");
meetingDataSet.addValue(17, "Meetings", "Feb13_3");
meetingDataSet.addValue(7, "Meetings", "Mar13_3");
return meetingDataSet;
}
public static void main(String[] args) {
GroupedStackedBarLineChart demo = new GroupedStackedBarLineChart(
"Client Revenue and Meetings");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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