samer@0: package samer.mds;
samer@0: 
samer@0: import samer.core.*;
samer@0: import samer.core.types.*;
samer@0: import samer.core.util.*;
samer@0: import samer.maths.*;
samer@0: import samer.tools.*;
samer@0: import java.util.*;
samer@0: import java.awt.*;
samer@0: 
samer@0: public class MatrixPointViewer2 extends samer.core.util.swing.VCanvas implements Task, Observer, Agent
samer@0: {
samer@0: 	Matrix			P;			// point positions
samer@0: 	Vec			x;			// point activities
samer@0: 	int				N;
samer@0: 	int				k1, k2;
samer@0: 	Color[]		clut;
samer@0: 	VMap			xmap, ymap, cmap;
samer@0: 	VInteger		markerSize;
samer@0: 	int[]			ix, iy;
samer@0: 	
samer@0: 	public MatrixPointViewer2(Matrix P, Vec x) {
samer@0: 		this.P=P;
samer@0: 		this.x=x;
samer@0: 		N=P.getRowDimension();
samer@0: 		k1=0; k2=1;
samer@0: 
samer@0: //		ColorRamp cramp=new ColorRamp(256);
samer@0: //		cramp.set(0,Color.black);
samer@0: //		cramp.gradientTo(255,Color.white);
samer@0: 		clut=new Color[256];
samer@0: 		for (int i=0; i<256; i++) clut[i]=new Color(255,255,255,i);
samer@0: 
samer@0: 		ix = new int[N];
samer@0: 		iy = new int[N];
samer@0: 		
samer@0: 		markerSize=new VInteger("markerSize",4);
samer@0: 		cmap=new VMap(new LinearMap(256),new Node("cmap"));
samer@0: 		xmap=new VMap(new LinearMap(256),new Node("xmap"));
samer@0: 		ymap=new VMap(new LinearMap(256),new Node("ymap"));
samer@0: 		exposeCommands(this);
samer@0: 
samer@0: 		P.viewable().addObserver(this);
samer@0: 		xmap.addObserver(this);
samer@0: 		ymap.addObserver(this);
samer@0: 	}
samer@0: 
samer@0: 	public void sized() {
samer@0: 		xmap.getMap().setIntRange(width);
samer@0: 		ymap.getMap().setIntRange(height);
samer@0: 		update(null,null);
samer@0: 	}
samer@0: 	
samer@0: 	public void attach() { P.viewable().addObserver(this); }
samer@0: 	public void detach() {
samer@0: 		P.viewable().deleteObserver(this);
samer@0: 		xmap.dispose();
samer@0: 		ymap.dispose();
samer@0: 		cmap.dispose();
samer@0: 		markerSize.dispose();
samer@0: 	}	
samer@0: 
samer@0: 	public void rotate() {
samer@0: 		k2++;
samer@0: 		if (k2>=P.getColumnDimension()) {
samer@0: 			k2=0;	k1++;
samer@0: 			if (k1>=P.getColumnDimension()) k1=0;
samer@0: 		}
samer@0: 		if (k2==k1) rotate();
samer@0: 	}
samer@0: 
samer@0: 	public void starting() {}
samer@0: 	public void stopping() {}
samer@0: 	public void run() { repaint(); }
samer@0: 	public void dispose() { detach(); }
samer@0: 	
samer@0: 	public void update(Observable o, Object a)
samer@0: 	{
samer@0: 		double [][] p=P.getArray();
samer@0: 		IMap		xm=xmap.getMap();
samer@0: 		IMap		ym=ymap.getMap();
samer@0: 		
samer@0: 		for (int i=0; i<N; i++) {
samer@0: 			double r[]=p[i];
samer@0: 			ix[i]=xm.toInt(r[k1]);
samer@0: 			iy[i]=ym.toInt(r[k2]);
samer@0: 		}
samer@0: 		repaint();
samer@0: 	}
samer@0: 
samer@0: 	public void paint(Graphics g) {
samer@0: 		double [] a=x.array();
samer@0: 		IMap		cm=cmap.getMap();
samer@0: 		int			b=markerSize.value;
samer@0: 
samer@0: 		clear(g);
samer@0: 		for (int i=0; i<N; i++) {
samer@0: 			g.setColor(clut[cm.clipInt(a[i])]);
samer@0: 			g.fillRect(ix[i],iy[i],b,b);
samer@0: 		}
samer@0: 	}
samer@0: 
samer@0: 	public void getCommands(Registry r) {
samer@0: 		r.add("rotate").add("x-map").add("y-map").add("c-map");
samer@0: 	}
samer@0: 	public void execute(String cmd, Environment env)
samer@0: 	{
samer@0: 		if (cmd.equals("rotate")) { rotate(); update(null,null); }
samer@0: 		else if (cmd.equals("x-map")) Shell.expose(xmap.getViewer(),"x-map");
samer@0: 		else if (cmd.equals("y-map")) Shell.expose(ymap.getViewer(),"y-map");
samer@0: 		else if (cmd.equals("c-map")) Shell.expose(cmap.getViewer(),"c-map");
samer@0: 	}
samer@0: }