comparison src/samer/tools/ScatterPlot.java @ 0:bf79fb79ee13

Initial Mercurial check in.

+/*
+ *	Copyright (c) 2001, Samer Abdallah, King's College London.
+ *	All rights reserved.
+ *
+ *	This software is provided AS iS and WITHOUT ANY WARRANTY;
+ *	without even the implied warranty of MERCHANTABILITY or
+ *	FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+package samer.tools;
+
+import samer.core.*;
+import samer.core.types.*;
+import samer.core.util.*;
+//import samer.maths.*;
+import java.util.*;
+import java.awt.*;
+
+/**
+	Builds up a 2D joint histogram of 2 elements of a vector.
+*/
+
+public class ScatterPlot extends Plotter implements Observer {
+	public VDouble alpha, fade,marksz;
+	Pen		pen;
+	Color		fader;
+	
+	public ScatterPlot()
+	{
+		exposeMaps();
+		
+		alpha=new VDouble("alpha",0.1);
+		fade=new VDouble("fade",0.02);
+		marksz=new VDouble("blob",2);
+		marksz.addObserver(this);
+		fade.addObserver(this);
+		alpha.addObserver(this);
+		fader=VColor.withAlpha(getBackground(),fade.value);
+		setForeground(VColor.withAlpha(getForeground(),alpha.value));
+	}
+
+	public void update(Graphics g) { Shell.print("update"); }
+	public void paint(Graphics g) {
+		Shell.print("paint");
+		g.setColor(VColor.withAlpha(getForeground(),255));
+		g.fillRect(0,0,width,height);
+	}
+	
+	public void dispose() {
+		alpha.dispose();
+		fade.dispose();
+		marksz.dispose();
+//		super.dispose();
+	}
+
+	public void plot(double x, double y) {
+		pen.abs(x,y).marker();
+	}
+
+	public void fade() {
+		graphics.setColor(fader);
+		graphics.fillRect(0,0,width,height);
+		graphics.setColor(getForeground());
+	}
+	
+	protected void sized()
+	{
+		super.sized();
+
+		Graphics2D	g2=(Graphics2D)graphics;
+		g2.setComposite(AlphaComposite.SrcOver);
+		g2.setPaint(getForeground());
+		pen=getPen(g2);
+		pen.setMarkerSize((int)marksz.value);
+	}
+
+	public void update(Observable o, Object a)
+	{
+		if (o==marksz) pen.setMarkerSize((int)marksz.value);
+		else if (o==fade) fader=VColor.withAlpha(getBackground(),fade.value);
+		else if (o==alpha) {
+			setForeground(VColor.withAlpha(getForeground(),alpha.value));
+		}
+	}
+/*
+	public Task vecTask(final Vec v, final int _i, final int _j) {
+		return new AnonymousTask() {
+			int		i=_i, j=_j;
+			double  [] x=v.array();
+			public void run() { plot(x[i],x[j]); }
+		};
+	}
+ */
+}
+
+