org.math.plot.plots.CloudPlot2D Maven / Gradle / Ivy

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/*
 * Created on 13 juil. 07 by richet
 */
package org.math.plot.plots;

import java.awt.Color;

import javax.swing.JFrame;

import org.math.plot.FrameView;
import org.math.plot.Plot2DPanel;
import org.math.plot.PlotPanel;
import org.math.plot.render.AbstractDrawer;
import org.math.plot.utils.Array;

public class CloudPlot2D extends Plot {

    double[][] NW;
    double[][] NE;
    double[][] SW;
    double[][] SE;
    double[] width_constant = {-1, -1};
    double[][] XY;
    float[] f;
    boolean fill_shape = true;

    public CloudPlot2D(String n, Color c, double[][] _XYcard, double wX, double wY) {
        super(n, c);
        splitXYf(_XYcard);
        width_constant = new double[]{wX, wY};

        build();
    }

    private void splitXYf(double[][] xycard) {
        XY = new double[xycard.length][2];
        f = new float[xycard.length];
        float normf = 0;
        for (int i = 0; i < xycard.length; i++) {
            XY[i][0] = xycard[i][0];
            XY[i][1] = xycard[i][1];
            f[i] = (float) xycard[i][2];
            normf += f[i];//Math.max(normf, f[i]);
        }

        for (int i = 0; i < f.length; i++) {
            f[i] = f[i] / normf;
        }

    }

    private void build() {
        if (width_constant[0] > 0) {
            NW = new double[XY.length][];
            NE = new double[XY.length][];
            SW = new double[XY.length][];
            SE = new double[XY.length][];
            for (int i = 0; i < XY.length; i++) {
                NW[i] = new double[]{XY[i][0] - width_constant[0] / 2, XY[i][1] + width_constant[1] / 2};
                NE[i] = new double[]{XY[i][0] + width_constant[0] / 2, XY[i][1] + width_constant[1] / 2};
                SW[i] = new double[]{XY[i][0] - width_constant[0] / 2, XY[i][1] - width_constant[1] / 2};
                SE[i] = new double[]{XY[i][0] + width_constant[0] / 2, XY[i][1] - width_constant[1] / 2};
            }
        }
    }

    public void plot(AbstractDrawer draw, Color c) {
        if (!visible) {
            return;
        }

        draw.canvas.includeInBounds(SW[0]);
        draw.canvas.includeInBounds(NE[XY.length - 1]);

        draw.setColor(c);
        draw.setLineType(AbstractDrawer.CONTINOUS_LINE);
        for (int i = 0; i < XY.length; i++) {
            if (f[i] > 0) {
                draw.fillPolygon(f[i], NW[i], NE[i], SE[i], SW[i]);
            }
        }
    }

    @Override
    public void setData(double[][] d) {
        datapanel = null;
        splitXYf(d);
    }

    @Override
    public double[][] getData() {
        return XY;
    }

    @Override
    public double[][] getBounds() {
        double[][] b = new double[][]{Array.min(XY), Array.max(XY)};
        for (int i = 0; i < b[0].length; i++) {
            b[0][i] = b[0][i] - width_constant[i] / 2;
            b[1][i] = b[1][i] + width_constant[i] / 2;
        }
        return b;
    }

    public double[] isSelected(int[] screenCoordTest, AbstractDrawer draw) {
        for (int i = 0; i < XY.length; i++) {
            int[] screenCoord = draw.project(XY[i]);

            if ((screenCoord[0] + note_precision > screenCoordTest[0]) && (screenCoord[0] - note_precision < screenCoordTest[0])
                    && (screenCoord[1] + note_precision > screenCoordTest[1]) && (screenCoord[1] - note_precision < screenCoordTest[1])) {
                return XY[i];
            }
        }
        return null;
    }

    public static void main(String[] args) {
        Plot2DPanel p = new Plot2DPanel();

        double[][] cloud = new double[100][2];
        for (int i = 0; i < cloud.length; i++) {
            cloud[i][0] = Math.random() + Math.random();
            cloud[i][1] = Math.random() + Math.random();
        }
        p.addCloudPlot("cloud", Color.RED, cloud, 5, 5);

        double[][] cloud2 = new double[100][2];
        for (int i = 0; i < cloud2.length; i++) {
            cloud2[i][0] = 2 + Math.random() + Math.random();
            cloud2[i][1] = 2 + Math.random() + Math.random();
        }
        p.addCloudPlot("cloud2", Color.RED, cloud2, 5, 5);

        p.setLegendOrientation(PlotPanel.SOUTH);
        new FrameView(p).setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}