我正在为我的应用程序使用jfree图表。我需要图表看起来像这样
预期的
但是我已经以多种方式格式化了图表，但我只能像这样。
实际
请帮助我获得预期的图表。我需要一个没有x轴线的图表。
我的图表代码是
final JFreeChart chart = ChartFactory.createLineChart(
"", // chart title
"", // domain axis label
"", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
false, // include legend
false, // tooltips
false // urls
);
final CategoryPlot plot = chart.getCategoryPlot();
ValueAxis range = plot.getRangeAxis();
range.setVisible(false);
plot.setBackgroundPaint(Color.WHITE);
plot.setRangeZeroBaselinePaint(Color.RED);
plot.setOutlineVisible(false);
chart.setBackgroundPaint(Color.WHITE);
final LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
renderer.setItemLabelsVisible(false);
renderer.setBaseShapesVisible(true);
renderer.setBaseShapesFilled(true);
plot.setRangeGridlinePaint(Color.white);
renderer.setSeriesStroke(0, new BasicStroke(2.0f));
plot.setDomainGridlinePaint(Color.BLUE);
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setVisible(false);
rangeAxis.setLabelPaint(Color.BLUE);
Shape circle = new Ellipse2D.Double(-3, -3, 6, 6);
renderer.setSeriesShape(0, circle);
plot.getRenderer().setSeriesPaint(0, Color.BLUE);
rangeAxis.setRange(0, 3);
try {
ChartUtilities.saveChartAsPNG(new File("E:\\jfreeLinechart.png"), chart, 211, 90);
System.out.println("=====chart=====");
} catch (Exception e) {
e.printStackTrace();
}
最佳答案
您只需要设置类别轴即可。具体设置setAxisLineVisible(false)和setTickMarksVisible(false)。
我创建了一个运行示例，该示例可以满足您的需求。
package chart;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Shape;
import java.awt.geom.Ellipse2D;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
public class chartExample extends ApplicationFrame {
private static final long serialVersionUID = 1L;
public chartExample(final String title) {
super(title);
final CategoryDataset dataset = createDataset();
final JFreeChart chart = createChart(dataset);
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new Dimension(600, 350));
setContentPane(chartPanel);
}
private CategoryDataset createDataset() {
final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(1.0, "Line", "2009");
dataset.addValue(2.0, "Line", "2010");
return dataset;
}
private JFreeChart createChart(final CategoryDataset dataset) {
final JFreeChart chart = ChartFactory.createLineChart(
"", // chart title
"", // domain axis label
"", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips
false // urls
);
chart.setBackgroundPaint(Color.WHITE);
final CategoryPlot plot = (CategoryPlot) chart.getPlot();
plot.setBackgroundPaint(Color.WHITE);
plot.setRangeZeroBaselinePaint(Color.RED);
plot.setOutlineVisible(false);
plot.setRangeGridlinePaint(Color.white);
plot.setDomainGridlinePaint(Color.BLUE);
final CategoryAxis categoryAxis = (CategoryAxis) plot.getDomainAxis();
categoryAxis.setAxisLineVisible(false);
categoryAxis.setTickMarksVisible(false);
//categoryAxis.setVisible(false);
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
//rangeAxis.setAxisLineVisible(false);
rangeAxis.setVisible(false);
rangeAxis.setLabelPaint(Color.BLUE);
rangeAxis.setRange(0, 3);
final LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
//renderer.setItemLabelsVisible(false); //Deprecated.
renderer.setBaseShapesVisible(true);
renderer.setBaseShapesFilled(true);
renderer.setSeriesStroke(0, new BasicStroke(2.0f));
Shape circle = new Ellipse2D.Double(-3, -3, 6, 6);
renderer.setSeriesShape(0, circle);
plot.getRenderer().setSeriesPaint(0, Color.BLUE);
// Removed and added a main method.
//try {
// ChartUtilities.saveChartAsPNG(new File("E:\\jfreeLinechart.png"), chart, 211, 90);
// System.out.println("=====chart=====");
//} catch (Exception e) {
// e.printStackTrace();
//}
return chart;
}
public static void main(final String[] args) {
final chartExample ce = new chartExample("Chart Example");
ce.pack();
RefineryUtilities.centerFrameOnScreen(ce);
ce.setVisible(true);
}
}