gistfile1.java

import processing.opengl.*;
import SimpleOpenNI.*;

SimpleOpenNI kinect;

/*
import controlP5.*;
ControlP5 cp5;
int sliderValue = 180;
*/

int rotation = 0;
int boxSize = 150;
PVector boxCenter = new PVector(0,0,600);

float s = 1;
void setup(){
	size(1024, 768, OPENGL);
	kinect = new SimpleOpenNI(this);
	kinect.enableDepth();
 	//kinect.enableRGB();
 	//kinect.alternativeViewPointDepthToImage();

/*
 	cp5 = new ControlP5(this);
	cp5.addSlider("sliderValue")
	   .setPosition(10,10)
	   .setRange(0,360)
	   ;
*/

}

void draw(){
	strokeWeight(4);
	//println(frameRate);
	background(0);
	kinect.update();
	//PImage rgbImage = kinect.rgbImage();

	//pushMatrix();
	translate(width/2, height/2, -1000);
	rotateX(radians(180));

	translate(0, 0, 1400);

	rotateY(radians(map(mouseX, 0, width, -180, 180)));
	
	translate(0, 0, s*-1000);
	scale(s);
	stroke(255);

	PVector[] depthPoints = kinect.depthMapRealWorld();
	
	int depthPointsInBox = 0;
	for (int i = 0; i<depthPoints.length; i+=10){
		PVector currentPoint = depthPoints[i];
		if ( currentPoint.x > boxCenter.x - boxSize/2 && currentPoint.x < boxCenter.x + boxSize/2){
			if ( currentPoint.y > boxCenter.y - boxSize/2 && currentPoint.y < boxCenter.y + boxSize/2){
				if ( currentPoint.z > boxCenter.z - boxSize/2 && currentPoint.z < boxCenter.z + boxSize/2){				
					depthPointsInBox++;
				}
			}
		}
		point(currentPoint.x, currentPoint.y, currentPoint.z);
	}

	println(depthPointsInBox);
	float boxAlpha = map(depthPointsInBox, 0, 100, 0, 255);

	translate(boxCenter.x, boxCenter.y, boxCenter.z);

	fill(255, 0, 0, boxAlpha);
	stroke(255, 0, 0);


	box(boxSize);
	//popMatrix();


}

	void keyPressed(){
		if(keyCode == 38){
			s += 0.01;
		}
		if (keyCode == 40){
			s -= 0.01;
		}
	}