有关如何为X轴和Y轴设置范围的任何建议.
我的"X轴"范围是"0.00到1.00",相差"0.05".我的意思是0.00 0.05 0.10 0.15 ..... 0.90 0.95 1.00
我的"Y轴"范围从"0.0到1.0",差异为"0.1".我的意思是0.0 0.1 0.2 0.3 0.4 ......... 0.9 1.0
我尝试过这样做,但它没有反映在图表上; 我不知道如何应用它 ChartFactory.createScatterPlot().
final NumberAxis domainAxis = new NumberAxis("X-Axis");
domainAxis.setRange(0.00,1.00);
domainAxis.setTickUnit(new NumberTickUnit(0.1));
final NumberAxis rangeAxis = new NumberAxis("Y-Axis");
rangeAxis.setRange(0.0,1.0);
rangeAxis.setTickUnit(new NumberTickUnit(0.05));
public JPanel createDemoPanel() {
XYDataset dataset1 = samplexydataset2();
JFreeChart jfreechart = ChartFactory.createScatterPlot("Scatter Plot Demo",
"X", "Y",dataset1, PlotOrientation.VERTICAL, true, true, false);
}
对此有任何帮助都会很棒.
我在JFreeChart散点图上绘制了数千个点.现在的问题是我的程序正在用"正方形"绘制点,但我需要一些帮助来解决如何将Shape点从"正方形"更改为"点/圆"的问题.任何帮助,将不胜感激.
// *我正在使用ShapeUtilities,但是当我使用XYItemRenderer/XYDotRenderer时,它没有改变指向"DaigonalCross"的形状 - 如果代码中有任何错误,请更正.* ///
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Shape;
import java.util.*;
import javax.swing.JPanel;
import org.jfree.chart.*;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYDotRenderer;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.util.ShapeUtilities;
public class SPlotfinal extends ApplicationFrame {
public SPlotfinal(String s) {
super(s);
JPanel jpanel = createDemoPanel();
jpanel.setPreferredSize(new Dimension(500, 270));
setContentPane(jpanel);
}
public static JPanel createDemoPanel() {
JFreeChart jfreechart = ChartFactory.createScatterPlot("Scatter Plot Demo",
"X", "Y", samplexydataset2(), PlotOrientation.VERTICAL, true, …我在向XYSeries添加点时遇到问题.我有两节课.一个是Sample(它有一个main方法)而另一个是JfreeChart(它有JfreeChart代码).在我的Sample班级中,我有一个sample[row][2]最初有10行的2D数组,然后我需要调用JfreeChart该类并将它们添加到XYSeries并显示散点图.我设法做到了这一点,但下次我调用Jfreechart该类时,我的数组有25行.
我需要将值添加到XYSeries并在散点图上绘制它们,散点图应显示前面10行的不同颜色值,现在25行值不同颜色......这样就可以了.谁能提出一些建议或例子？
class Sample {
public static void main(String args[]) {
System.out.print("(X,Y) Paired Values");
double[][] sample = new double[row][2];
for (int g = 0; g < sampe.length; g++) {
for (int h = 0; h < 2; h++) {
System.out.print("" + sample[g][h] + ",");
}
}
JfreeChart sample = new JfreeChart("Demo", sample);
}
static XYDataset samplexydataset2(double[][] sample) {
XYSeriesCollection xySeriesCollection = new XYSeriesCollection();
XYSeries …我有一系列元素,它们属于一个系列,这些元素我计算了Centroids.问题是,当我用"ScatterPlot"显示它们时,我需要用"One Color"显示"Array Elements",并在"Different Color"中显示这些点的Centroid.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Shape;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.DefaultDrawingSupplier;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.data.xy.DefaultXYDataset;
import org.jfree.data.xy.XYDataset;
public class Scatteradd extends JFrame {
int i, x = 0, n1 = 0;
public Scatteradd(String title, final double[][] samples) {
super(title);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final DefaultXYDataset dataset = new DefaultXYDataset();
dataset.addSeries("Series0", createSeries(0, samples));
//dataset.addSeries("Series1", createSeries(1,trainingset3));
JFreeChart chart = createChart(dataset);
ChartPanel chartPanel …