Java JFreeCharts图例文本和颜色框Don'；t对齐
我正在使用JFreeCharts并创建一个堆叠条形图。我创建了一个图例，但当我将图例的字体更改为Calibri size 9时，文本不会与彩色框垂直对齐 图例显示如下： 文本没有与框垂直对齐，就像下面有填充物或其他东西一样。下面是我自定义图表的代码Java JFreeCharts图例文本和颜色框Don'；t对齐,java,graph,alignment,jfreechart,Java,Graph,Alignment,Jfreechart,我正在使用JFreeCharts并创建一个堆叠条形图。我创建了一个图例，但当我将图例的字体更改为Calibri size 9时，文本不会与彩色框垂直对齐 图例显示如下： 文本没有与框垂直对齐，就像下面有填充物或其他东西一样。下面是我自定义图表的代码 public JFreeChart createStackedChart(final CategoryDataset categorydataset, String Title) throws DocumentException, IOExcept
public JFreeChart createStackedChart(final CategoryDataset categorydataset, String Title) throws DocumentException, IOException {
final JFreeChart chart = ChartFactory.createStackedBarChart(
Title, // chart title
"", // domain axis label
"", // range axis label
categorydataset, // data
PlotOrientation.VERTICAL, // the plot orientation
true, // legend
true, // tooltips
false // urls
);
chart.setTitle(
new org.jfree.chart.title.TextTitle(Title,
new java.awt.Font("Calibri", java.awt.Font.PLAIN, 12)
));
int columnCount = categorydataset.getColumnCount();
chart.setBackgroundPaint(Color.white);
chart.getTitle().setPadding(10, 2, 10, 2);
chart.setBorderVisible(true);
chart.setBorderPaint(Color.lightGray);//akash change
final CategoryPlot plot = chart.getCategoryPlot();
plot.setBackgroundPaint(Color.white);
plot.setDomainGridlinePaint(Color.lightGray);
plot.setRangeGridlinePaint(Color.lightGray);
plot.setDomainGridlineStroke(new BasicStroke(0.5f));
plot.setRangeGridlineStroke(new BasicStroke(0.5f));
plot.setOutlineVisible(true);
plot.setOutlinePaint(Color.lightGray);
plot.setAxisOffset(new RectangleInsets(0, 0, 0, 0));
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setTickLabelFont(new Font("Calibri", Font.PLAIN, 10));
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setAutoRangeStickyZero(false);
rangeAxis.setLowerMargin(0.0);
rangeAxis.setTickLabelPaint(Color.black);
rangeAxis.setTickMarkPaint(Color.lightGray);
rangeAxis.setTickMarkStroke(new BasicStroke(0.3f));
rangeAxis.setAxisLineStroke(new BasicStroke(0.3f));
rangeAxis.setLowerBound(0.0f);
rangeAxis.setAxisLinePaint(Color.lightGray);
GroupedStackedBarRenderer renderer = new GroupedStackedBarRenderer();
renderer.setDrawBarOutline(false);
renderer.setBarPainter(new StandardBarPainter());
Paint p1 = new GradientPaint(
0.0f, 0.0f, new Color(0x22, 0x22, 0xFF), 0.0f, 0.0f, new Color(0x88, 0x88, 0xFF)
);
renderer.setSeriesPaint(0, p1);
renderer.setSeriesPaint(4, p1);
renderer.setSeriesPaint(8, p1);
Paint p2 = new GradientPaint(
0.0f, 0.0f, new Color(0x22, 0xFF, 0x22), 0.0f, 0.0f, new Color(0x88, 0xFF, 0x88)
);
renderer.setSeriesPaint(1, p2);
renderer.setSeriesPaint(5, p2);
renderer.setSeriesPaint(9, p2);
Paint p3 = new GradientPaint(
0.0f, 0.0f, new Color(0xFF, 0x22, 0x22), 0.0f, 0.0f, new Color(0xFF, 0x88, 0x88)
);
renderer.setSeriesPaint(2, p3);
renderer.setSeriesPaint(6, p3);
renderer.setSeriesPaint(10, p3);
Paint p4 = new GradientPaint(
0.0f, 0.0f, new Color(0xFF, 0xFF, 0x22), 0.0f, 0.0f, new Color(0xFF, 0xFF, 0x88)
);
renderer.setSeriesPaint(3, p4);
renderer.setSeriesPaint(7, p4);
renderer.setSeriesPaint(11, p4);
renderer.setGradientPaintTransformer(
new StandardGradientPaintTransformer(GradientPaintTransformType.HORIZONTAL)
);
final CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setTickLabelPaint(Color.black);
domainAxis.setTickLabelFont(new Font("Calibri", Font.PLAIN, 10));
Color transparent = new Color(0, 0, 0, 0);
domainAxis.setAxisLinePaint(transparent);
domainAxis.setTickMarkPaint(Color.darkGray);
domainAxis.setTickMarkStroke(new BasicStroke(0.3f));
domainAxis.setMaximumCategoryLabelWidthRatio(4f);
if (columnCount == 2) {
domainAxis.setCategoryMargin(.6);
domainAxis.setLowerMargin(0.015);
domainAxis.setUpperMargin(0.015);
} else if (columnCount == 3) {
domainAxis.setCategoryMargin(.35);
domainAxis.setLowerMargin(0.15);
domainAxis.setUpperMargin(0.15);
} else {
domainAxis.setCategoryMargin(.55);
domainAxis.setLowerMargin(0.015);
domainAxis.setUpperMargin(0.015);
}
LegendTitle legend = chart.getLegend();//akash change
legend.setPosition(RectangleEdge.TOP);
legend.setItemPaint(Color.black);
chart.getLegend()
.setFrame(BlockBorder.NONE);
legend.setItemPaint(Color.GRAY);
Font labelFont = new Font("Calibri", Font.PLAIN, 9);
legend.setItemFont(labelFont);
if (columnCount >= 5) {
domainAxis.setCategoryLabelPositions(
CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 4.0));
chart.setPadding(new RectangleInsets(0, 5, 0, 5));
} else {
domainAxis.setCategoryLabelPositions(
STANDARD);
}
plot.setDomainAxis(domainAxis);
return chart;
}
重要的行包括我创建图例和更改字体大小的区域。再次感谢 从这一部分开始，我看到了预期结果，如下所示。请注意，相关的“应用默认的
JFreeTahomaderiveFont（）LegendTitle legend = chart.getLegend();
…
Font labelFont = legend.getItemFont().deriveFont(20f);
legend.setItemFont(labelFont);
如果我把字体改成Calibri，它还能用吗；由于您在多个地方使用了
ChartThemeChartThemeimport java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Font;
import javax.swing.BorderFactory;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.block.BlockBorder;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.GroupedStackedBarRenderer;
import org.jfree.chart.title.LegendTitle;
import org.jfree.data.KeyToGroupMap;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.chart.ui.ApplicationFrame;
import org.jfree.chart.ui.RectangleEdge;
/**
* @see https://stackoverflow.com/a/17342522/230513
*/
public class DomainTranslateDemo extends ApplicationFrame {
private static class DemoPanel extends JPanel implements ChangeListener {
private static final int SLIDER_INITIAL_VALUE = -42;
private static final double INCREMENT = 1 / 10.0;
private final JSlider slider;
private GroupedStackedBarRenderer renderer;
public DemoPanel() {
super(new BorderLayout());
final CategoryDataset dataset = createDataset();
final JFreeChart chart = createChart(dataset);
final ChartPanel chartPanel = new ChartPanel(chart) {
@Override
public Dimension getPreferredSize() {
return new Dimension(640, 360);
}
};
add(chartPanel);
JPanel dashboard = new JPanel(new BorderLayout());
dashboard.setBorder(BorderFactory.createEmptyBorder(0, 4, 4, 4));
this.slider = new JSlider(-50, 10, SLIDER_INITIAL_VALUE);
this.slider.addChangeListener(this);
dashboard.add(this.slider);
add(dashboard, BorderLayout.SOUTH);
}
private CategoryDataset createDataset() {
DefaultCategoryDataset result = new DefaultCategoryDataset();
result.addValue(1.5, "5YEUR", "5Y");
result.addValue(-1.5, "5YUSD", "5Y");
result.addValue(0.5, "5Yx5YEUR", "5Yx5Y");
result.addValue(-0.5, "5Yx5YUSD", "5Yx5Y");
result.addValue(1.5, "10Yx5YEUR", "10Yx5Y");
result.addValue(-1.5, "10Yx5YUSD", "10Yx5Y");
result.addValue(1.5, "15Yx5YEUR", "15Yx5Y");
result.addValue(-1.5, "15Yx5YUSD", "15Yx5Y");
result.addValue(1.5, "20Yx5YEUR", "20Yx5Y");
result.addValue(-1.5, "20Yx5YUSD", "20Yx5Y");
result.addValue(1.5, "20Yx5YEUR", "25Yx5Y");
result.addValue(-1.5, "20Yx5YUSD", "25Yx5Y");
return result;
}
private JFreeChart createChart(final CategoryDataset dataset) {
final JFreeChart chart = ChartFactory.createStackedBarChart(
"Max Bar Width", // chart title
"Category", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // the plot orientation
true, // legend
true, // tooltips
false // urls
);
LegendTitle legend = chart.getLegend();
legend.setPosition(RectangleEdge.TOP);
legend.setFrame(BlockBorder.NONE);
Font labelFont = legend.getItemFont().deriveFont(20f);
legend.setItemFont(labelFont);
renderer = new GroupedStackedBarRenderer();
KeyToGroupMap map = new KeyToGroupMap("G1");
map.mapKeyToGroup("5YEUR", "G1");
map.mapKeyToGroup("5YUSD", "G1");
map.mapKeyToGroup("5Yx5YEUR", "G2");
map.mapKeyToGroup("5Yx5YUSD", "G2");
map.mapKeyToGroup("10Yx5YEUR", "G3");
map.mapKeyToGroup("10Yx5YUSD", "G3");
map.mapKeyToGroup("15Yx5YEUR", "G4");
map.mapKeyToGroup("15Yx5YUSD", "G4");
map.mapKeyToGroup("20Yx5YEUR", "G5");
map.mapKeyToGroup("20Yx5YUSD", "G5");
map.mapKeyToGroup("25Yx5YEUR", "G6");
map.mapKeyToGroup("25Yx5YUSD", "G6");
renderer.setSeriesToGroupMap(map);
renderer.setItemMargin(SLIDER_INITIAL_VALUE * INCREMENT);
CategoryPlot plot = (CategoryPlot) chart.getPlot();
plot.setRenderer(renderer);
return chart;
}
@Override
public void stateChanged(ChangeEvent event) {
int value = slider.getValue();
renderer.setItemMargin(value * INCREMENT);
}
}
public DomainTranslateDemo(String title) {
super(title);
setContentPane(new DemoPanel());
}
public static JPanel createDemoPanel() {
return new DemoPanel();
}
public static void main(String[] args) {
DomainTranslateDemo demo = new DomainTranslateDemo("Translate Demo");
demo.pack();
demo.setLocationRelativeTo(null);
demo.setVisible(true);
}
}