ScatterGraphPanel.java

/*
 Scatter Graph Panel object for Parkrun data collector
 Daniel Mesham
 28 January 2017
*/

import javax.swing.*;
import java.awt.*;
import java.lang.Math;

class ScatterGraphPanel extends GraphPanel {

 private GraphPoint[][] dataPoints;

 private static int size = 1;

 private static Color[] COLORS = { Color.RED, Color.GREEN, Color.BLUE, Color.ORANGE, Color.MAGENTA, Color.CYAN, Color.PINK, Color.YELLOW };

 public ScatterGraphPanel(int widthIn, int heightIn, double maxX, double maxY, GraphPoint[][] dataPointsIn) {
 super(widthIn, heightIn, maxX, maxY);
 dataPoints = dataPointsIn;
 }

 @Override
 public void paintComponent(Graphics g) {
 super.paintComponent(g);

 for (int i = 0; i < dataPoints.length; i ++) {
 int colorIndex = i % COLORS.length;
 plot(dataPoints[i], COLORS[colorIndex], g);
 }
 }

 private void plot(GraphPoint[] dataIn, Color colorIn, Graphics g) {
 Color oldColor = g.getColor();
 g.setColor(colorIn);
 for (GraphPoint gp : dataIn) {
 int x = xCoord(gp);
 int y = yCoord(gp);
 int offset = (int) Math.floor(size/2);
 g.fillRect(x-1,y-1,size,size);
 }
 g.setColor(oldColor);
 }

}