Maestro Development Blog

I've revisted version 1.1 as the 1.2's Sine class is making it difficult to add on to at the moment. So, 1.1b is changing the pitch of a sine wave on the Y axis and changing the pitch of a triangle wave on the X axis. Here is the code:

import JMyron.*;
import krister.Ess.*;
import controlP5.*;
JMyron m; //a camera object
ControlP5 controlP5;
AudioChannel myChannel;
AudioChannel myChannel2;
SineWave myWave;
TriangleWave myWave2;
float volume=1;
int pitch=400;
int release=10000;
FadeIn myFadeIn;
FadeOut myFadeOut;
 
FadeIn myFadeIn2;
FadeOut myFadeOut2;
 
LowPass myLowPass;
 
int r;
int g;
int b;
int min_size = 50;
int max_size=100;
int sensitivity = 35;
float objx = 160;
float objy = 120;
float objdestx = 160;
float objdesty = 120;
 
void setup(){
  size(720,576);
  m = new JMyron();//make a new instance of the object
  m.start(width,height);//start a capture at 320x240
  m.findGlobs(1);//disable the intelligence to speed up frame rate
  controlP5 = new ControlP5(this);
  /*
  controlP5.addSlider("sensitivity",0,255,40,10,10,10,100).setId(1);
   name, low val, high val, default val, x, y, width, height,
   */
  controlP5.addSlider("sensitivity",0,255,sensitivity,10,10,10,100).setId(1);
  controlP5.addSlider("min size",0,800,min_size,60,10,10,100).setId(2);
  //controlP5.addSlider("max size",0,400,max_size,100,10,10,100).setId(3);
  //println("here are the globs:"  + m.globCenters());
   Ess.start(this);
   myChannel=new AudioChannel();
   myChannel2=new AudioChannel();
   myFadeIn=new FadeIn();
   myFadeOut=new FadeOut();
   myFadeIn2=new FadeIn();
   myFadeOut2=new FadeOut();
 
}
 
void draw(){
  m.update();//update the camera view
  m.trackColor(r,g,b,sensitivity);
  m.minDensity(min_size);
  //m.maxDensity(max_size);
  int[] img = m.image(); //get the normal image of the camera
 
  loadPixels();
  for(int i=0;i<width*height;i++){ //loop through all the pixels
    pixels[i] = img[i]; //draw each pixel to the screen
  }
  updatePixels();
 
  stroke(0,255,0);
  int[][][] list = m.globEdgePoints(30);//get the outlines
  for(int i=0;i
<list.length;i++){
    beginShape();
    if(list[i]!=null){
      for(int ii=0;ii<list[i].length;ii++){
        vertex(list[i][ii][0],list[i][ii][1]);
      }
    }
    endShape();
  }
  int[][] centers = m.globCenters();//get the center points
  //draw all the dots while calculating the average.
  //println("Amount of globs: " + centers.length);
  float avX=0;
  float avY=0;
  for(int i=0;i<centers.length;i++){
    fill(0);
    rect(centers[i][0],centers[i][1],1,1);
    avX += centers[i][0];
    avY += centers[i][1];
  }
  if(centers.length-1>0){
    avX/=centers.length-1;
    avY/=centers.length-1;
  }
 
  //draw the average of all the points in red.
  fill(255,0,0);
  rect(avX,avY,5,5);
 
  //update the location of the thing on the screen.
  if(!(avX==0&&avY==0)&&centers.length>0){
    objdestx = avX;
    objdesty = avY;
  }
  objx += (objdestx-objx)/5.0f;
  objy += (objdesty-objy)/5.0f;
 
  fill(30,100,0);
  ellipseMode(CENTER);
  ellipse(objx,objy,25,25);
  //println("X of Glob:" + objx + "Y of Glob:" + objy);
  //println("the avx variable:" + avX);
  myWave=new SineWave(objy,volume);
  myWave2=new TriangleWave(objx,1);
 
  myChannel2.initChannel(myChannel2.frames(release));
  myChannel.initChannel(myChannel2.frames(release));
 
  myWave.generate(myChannel,5,myChannel.frames(release));
  myWave2.generate(myChannel2,0,myChannel2.frames(release));
 
  myFadeOut.filter(myChannel);
  myFadeIn.filter(myChannel);
 
  myFadeOut2.filter(myChannel2);
  myFadeIn2.filter(myChannel2);
}
 
void controlEvent(ControlEvent theEvent) {
  switch(theEvent.controller().id()) {
 
    case(1):
    sensitivity = (int)(theEvent.controller().value());
    print("sensitivity changed to " + sensitivity + "\n");
    break;  
 
    case(2):
    min_size = (int)(theEvent.controller().value());
    break;
 
    case(3):
    max_size = (int)(theEvent.controller().value());
    break;
 
  }
 
}
 
void mouseClicked(MouseEvent m) {
  if (mouseEvent.getClickCount() == 2) {
    mouseX = m.getX();
    mouseY = m.getY();
    println("The co-ordinates of the mouse click are:");
    println("X:" + mouseX + " Y:" + mouseY);
    int c = get(mouseX, mouseY);
    r = int(red(c));
    g = int(green(c));
    b = int(blue(c));
    println ("R: " + r + " G: " + g + " B: " + b + " Sens: " + sensitivity);
 
    myChannel.play();
    myChannel2.play();
    return;
  }
}
 
public void stop(){
  Ess.stop();
  m.stop();//stop the object
  super.stop();
}

Tags: Audio, controlP5, ess r2, globs, JMyron, Processing, programming, video

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