jzy3D从入门到弃坑_3

使用jzy3D0.9画2D散点图--多条线条

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主要思路

• 将多个线条的二维数组读入Scatter对象
• 存入到同一个画布中
  

  存入多个Scatter对象中

package momfo.metaheuristics.momfea;

import momfo.core.SolutionSet;
import org.jzy3d.chart.Chart;
import org.jzy3d.chart.ChartLauncher;
import org.jzy3d.colors.Color;
import org.jzy3d.global.Settings;
import org.jzy3d.maths.Coord3d;
import org.jzy3d.plot3d.primitives.Scatter;
import org.jzy3d.plot3d.rendering.canvas.Quality;
import org.jzy3d.chart.Chart;

import java.awt.*;

public class PlotTwoD_alpha {
    //如果要在一张图中添加多个点，我们采用首先取点，然后生成颜色的方式
    public Scatter Setpoint(double[][] maxtrix, float[] rgb, float alpha, float width) {
        Coord3d[] POINTS;
        Color[] COLORS;
        int size = maxtrix.length;//size
        int numobj = maxtrix[0].length;//2
        float x;
        float y;
        float z;
        POINTS = new Coord3d[size];
        COLORS = new Color[size];
        for (int i = 0; i < size; i++) {
            x = 0;
            y = (float) maxtrix[i][0];
            z = (float) maxtrix[i][1];
            POINTS[i] = new Coord3d(x, y, z);
            COLORS[i] = new Color(rgb[0], rgb[1], rgb[2], alpha);//表示RGB值和透明度
        }
        Scatter scatter = new Scatter(POINTS, COLORS, width);//width 表示线条宽度
        return scatter;
    }
}

在同一画布中将多个Scatter表示出来

package momfo.metaheuristics.momfea;

import java.awt.*;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.HashMap;

import momfo.core.*;
import momfo.util.comparators.LocationComparator;

import momfo.operators.crossover.CrossoverFactory;
import momfo.operators.mutation.MutationFactory;
import momfo.operators.selection.SelectionFactory;
import momfo.problems.benchmarks.*;
import momfo.qualityIndicator.QualityIndicator;
import momfo.util.JMException;
import org.jzy3d.chart.Chart;
import org.jzy3d.chart.ChartLauncher;
import org.jzy3d.global.Settings;
import org.jzy3d.plot3d.primitives.Scatter;
import org.jzy3d.plot3d.rendering.canvas.Quality;

public class ReadPrintPF {
    public static void main(String args[]) throws IOException, JMException, ClassNotFoundException {
        ProblemSet problemSet; // The problem to solve
        momfo.qualityIndicator.util.MetricsUtil utils_;
        SolutionSet TruePFT1;
        SolutionSet TruePFT2;

        problemSet = CIHS.getProblem();
        String pf1 = "PF/" + problemSet.get(0).getHType() + ".pf";
        String pf2 = "PF/" + problemSet.get(1).getHType() + ".pf";
        utils_ = new momfo.qualityIndicator.util.MetricsUtil();
        // 返回的是一个solutionSet变量
        //使用这种方式读取的SolutionSet没有决策变量
        TruePFT1 = utils_.readNonDominatedSolutionSet(pf1);
        TruePFT2 = utils_.readNonDominatedSolutionSet(pf2);
//        TruePFT1.printObjectivesToFile("./src/main/java/momfo/metaheuristics/momfea/" + "CIHS" + "T1" + ".txt");
        //并且可以发现目标函数值都是double类型的浮点数类型
//        TruePFT1.printObjectives();
        ReadPrintPFTools tools = new ReadPrintPFTools();
        double[][] TruePFT1_Matrix = tools.writeObjectivesToMatrix(TruePFT1);
        double[][] TruePFT2_Matrix = tools.writeObjectivesToMatrix(TruePFT2);
        float[] rgb1 = {0, 0, 0};//黑色
        float[] rgb2 = {(float) 0.5, (float) 0.5, (float) 0.5};//灰色
        float alpha = (float) 0.5;

        PlotTwoD_alpha pttwoD = new PlotTwoD_alpha();
        Scatter scatter1 = pttwoD.Setpoint(TruePFT1_Matrix, rgb1, alpha, 5);
        Scatter scatter2 = pttwoD.Setpoint(TruePFT2_Matrix, rgb2, alpha, 5);
        Chart chart = new Chart(Quality.Advanced, "awt");
        // add scatters
        chart.getScene().add(scatter1);
        chart.getScene().add(scatter2);
        Settings.getInstance().setHardwareAccelerated(true);
        //open chart
        ChartLauncher.openChart(chart, new Rectangle(0, 0, 600, 600), "CIHS");
    }

}

结果

原文地址：https://www.cnblogs.com/cloud-ken/p/12034479.html