topical media & game development

topical media & game development

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

graphic-processing-site-examples-Topics-Image-Processing-LinearImage-LinearImage.pde / pde

Linear Image. Click and drag mouse up and down to control the signal. Press and hold any key to watch the scanning.


  
   
  PImage a;
  boolean onetime = true;
  int[] aPixels = new int[200*200];
  int direction = 1;
  
  float signal;
  
  void setup() 
  {
    size(200, 200);
    stroke(255);
    a = loadImage("florence03.jpg");
    for(int i=0; i<width*height; i++) {
      aPixels[i] = a.pixels[i];
    }
  }
  
  void draw() 
  {
    if (signal > width-1 || signal < 0) { 
      direction = direction * -1; 
    }
  
    if(mousePressed) {
      signal = abs(mouseY\%height);
    } else {
      signal += (0.3*direction);  
    }
    
    
    if(keyPressed) {
      loadPixels();
      for (int i=0; i<width*height; i++) { 
        pixels[i] = aPixels[i];  
      }
      updatePixels();
      line(0, signal, width, signal);
    } else {
      loadPixels();
      for (int i=0; i<width*height; i++) { 
        pixels[i] = aPixels[int((width*int(signal))+(i\%width))];
      }
      updatePixels();
    }
    
  }

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.