Java 如何使用jfreechart动态更新散点图
我应该模拟球的运动。情节中的斑点是我的球。现在,我已经生成了一个随机数据集,但稍后我将读取一个输入文件,该文件将连续给出球的位置 所以我的问题是,我怎样才能不断更新我的图表,让它看起来像球在移动Java 如何使用jfreechart动态更新散点图,java,jfreechart,Java,Jfreechart,我应该模拟球的运动。情节中的斑点是我的球。现在,我已经生成了一个随机数据集,但稍后我将读取一个输入文件,该文件将连续给出球的位置 所以我的问题是,我怎样才能不断更新我的图表,让它看起来像球在移动 import java.awt.BasicStroke; import java.awt.Color; import java.awt.Shape; import java.awt.geom.Ellipse2D; //import java.security.PublicKey; import java
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Shape;
import java.awt.geom.Ellipse2D;
//import java.security.PublicKey;
import java.util.Random;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.NumberTickUnit;
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.XYLineAndShapeRenderer;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
public class visualize {
private static XYSeriesCollection createDataset() {
Random rgenX = new Random();
Random rgenY = new Random();
XYSeriesCollection dataset = new XYSeriesCollection();
for (int i = 999; i >= 0; i-=10) {
int x = rgenX.nextInt(i+1);
int y = rgenY.nextInt(i+1);
XYSeries series1 = new XYSeries(i);
series1.add(x, y);
dataset.addSeries(series1);
}
final XYSeries series3 = new XYSeries("line1");
series3.add(300, 400);
series3.add(500, 300);
dataset.addSeries(series3);
final XYSeries series4 = new XYSeries("line2");
series4.add(500, 200);
series4.add(700, 300);
dataset.addSeries(series4);
return dataset;
}
private static JFreeChart createChart(XYSeriesCollection dataset) {
JFreeChart chart = ChartFactory.createXYLineChart(
"", // chart title
"", // x axis label
"", // y axis label
dataset, // data ***-----PROBLEM------***
PlotOrientation.VERTICAL,
false, // include legend
true, // tooltips
false // urls
);
XYPlot xyPlot = (XYPlot) chart.getPlot();
final XYLineAndShapeRenderer renderer0 = new XYLineAndShapeRenderer();
renderer0.setSeriesShapesVisible(100, false);
renderer0.setSeriesShapesVisible(101, false);
renderer0.setSeriesStroke(100, new BasicStroke(5.0f));
renderer0.setSeriesStroke(101, new BasicStroke(5.0f));
xyPlot.setRenderer(renderer0);
Shape shape = new Ellipse2D.Double(0,0,20,20);
XYItemRenderer renderer = xyPlot.getRenderer();
renderer.setBaseShape(shape);
renderer.setBasePaint(Color.red);
renderer.setSeriesPaint(100, Color.black);
renderer.setSeriesPaint(101, Color.black);
for (int i = 0; i < 99; i++) {
renderer.setSeriesShape(i, shape);
}
NumberAxis domain = (NumberAxis) xyPlot.getDomainAxis();
domain.setRange(0, 1000);
domain.setTickUnit(new NumberTickUnit(50));
domain.setVerticalTickLabels(true);
NumberAxis range = (NumberAxis) xyPlot.getRangeAxis();
range.setRange(0, 1000);
range.setTickUnit(new NumberTickUnit(50));
xyPlot.setBackgroundPaint(Color.white);
return chart;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
ChartFrame frame = new ChartFrame("DropBalls", createChart(createDataset()));
frame.pack();
frame.setVisible(true);
}
}
import java.awt.BasicStroke;
导入java.awt.Color;
导入java.awt.Shape;
导入java.awt.geom.Ellipse2D;
//导入java.security.PublicKey;
导入java.util.Random;
导入org.jfree.chart.ChartFactory;
导入org.jfree.chart.ChartFrame;
导入org.jfree.chart.JFreeChart;
导入org.jfree.chart.axis.NumberAxis;
导入org.jfree.chart.axis.NumberTickUnit;
导入org.jfree.chart.plot.PlotOrientation;
导入org.jfree.chart.plot.XYPlot;
导入org.jfree.chart.renderer.xy.XYItemRenderer;
导入org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
导入org.jfree.data.xy.XYSeries;
导入org.jfree.data.xy.XYSeriesCollection;
公共类可视化{
私有静态XYSeriesCollection createDataset(){
Random rgenX=新的Random();
Random rgenY=新的Random();
XYSeriesCollection数据集=新的XYSeriesCollection();
对于(int i=999;i>=0;i-=10){
int x=rgenX.nextInt(i+1);
int y=rgenY.nextInt(i+1);
XYSeries系列1=新的XYSeries(i);
系列1.添加(x,y);
dataset.addSeries(系列1);
}
最终XYSeries系列3=新XYSeries(“第1行”);
系列3.添加(300400);
系列3.添加(500300);
dataset.addSeries(系列3);
最终XYSeries系列4=新XYSeries(“第2行”);
系列4.添加(500200);
系列4.添加(700300);
dataset.addSeries(系列4);
返回数据集;
}
私有静态JFreeChart createChart(XYSeriesCollection数据集){
JFreeChart chart=ChartFactory.createXYLineChart(
“”,//图表标题
“”,//x轴标签
“”,//y轴标签
数据集,//数据***----问题------***
PlotOrientation.VERTICAL,
false,//包含图例
true,//工具提示
false//url
);
XYPlot XYPlot=(XYPlot)chart.getPlot();
最终的XylineandShaperEnder渲染器0=新的XylineandShaperEnder();
渲染器0.setSeriesShapesVisible(100,false);
渲染器0.setSeriesShapesVisible(101,false);
渲染器0.设置经验行程(100,新基本行程(5.0f));
渲染器0.设置经验行程(101,新基本行程(5.0f));
setRenderer(渲染器0);
形状=新椭圆2d.双(0,0,20,20);
XYItemRenderer=xyPlot.getRenderer();
渲染器.setBaseShape(形状);
渲染器.setBasePaint(颜色:红色);
渲染器.setSeriesPaint(100,彩色.黑色);
渲染器.setSeriesPaint(101,颜色.黑色);
对于(int i=0;i<99;i++){
渲染器。设置经验形状(i,形状);
}
NumberAxis域=(NumberAxis)xyPlot.getDomainAxis();
domain.setRange(0,1000);
domain.setTickUnit(新的NumberTickUnit(50));
domain.setVerticalTickLabels(true);
NumberAxis range=(NumberAxis)xyPlot.getRangeAxis();
范围。设置范围(0,1000);
range.setTickUnit(新的NumberTickUnit(50));
xyPlot.setBackgroundPaint(颜色:白色);
收益表;
}
公共静态void main(字符串[]args){
//TODO自动生成的方法存根
ChartFrame框架=新的图表框架(“DropBalls”,createChart(createDataset());
frame.pack();
frame.setVisible(true);
}
}
显示了更新按钮动作侦听器中散点图的一种方法。对于连续更新,请使用插图。显示了更新按钮动作侦听器中散点图的一种方法。如需持续更新,请使用,如图所示