marta lwin @ itp

midterm
3.21.05

canyon void

I decided to take advantage of the time element and have evolved the idea of user participation to change the concept of networked image manipulation. For the midterm, I brought in live webcam feed from the grand canyon, created an array, and devised a method for detecting presence which will erase the layers of the web cam image as the user looks at the image. For the final, I continue to develop the "worm hole effect".

code:

 
               
package grancanHole;

import java.awt.*;
import java.util.ArrayList;

public class GetCan extends java.applet.Applet implements Runnable { 
  Image img;
  MediaTracker tracker;
  boolean show = false;
  Thread runme;
  String message="Loading...";
  int imageNum=0;
  int startTime = (int) System.currentTimeMillis();
  int elapsedTime = 0;
  ArrayList imglist = new ArrayList();
   

  public void init() {
    img = getImage( getCodeBase(), "http://www2.nature.nps.gov/air/webcams/parks/grcacam/grca.jpg" );
    tracker = new MediaTracker(this);
    tracker.addImage( img, imageNum );
    resize (640, 480);
    imglist.add(img);
   // System.out.println( "the image number is:" imageNum );
     
  }

  public void GetNewImage(){
  	
  	 img = getImage( getCodeBase(), "http://www2.nature.nps.gov/air/webcams/parks/grcacam/grca.jpg" );
     tracker = new MediaTracker(this);
     tracker.addImage( img, imageNum );
	 imglist.add(img);
	 
  }
  
  
  public void start() {
    if ( !tracker.checkID( imageNum ) ) {
      runme = new Thread( this );
      runme.start();
    }
  }

  public void stop() {
    runme = null;
  }

  public void run() {
    // Paint the loading message
    repaint();
    // The wait for the image to finish loading
    try {
      tracker.waitForID( imageNum );
    } catch( InterruptedException e) { }
    //imglist. //trimtosize is an arraylist method
    // Check if there was a loading error
    if ( tracker.isErrorID( imageNum ) )
      message= "Error";
    else
      show = true;
    
    
    elapsedTime = (int) System.currentTimeMillis()-startTime;
    System.out.println(elapsedTime);
    
	if (elapsedTime > 900000){
		GetNewImage();
		startTime = (int) System.currentTimeMillis();
		elapsedTime = 0;
		System.out.println("got new image");	
	}
	
	repaint();
  }
	//	 Repaint with the image now if it loaded OK
	
  

 public void array(){
  
  for (int i = 0; i < imglist.size(); i++) {
   imglist.get(i);
   System.out.println("the number in the array is:");
   System.out.println(i);
  		}
  } 
  
  public void paint( Graphics g ) {
    if ( show )
      g.drawImage( img, 0, 0, this );
    else {
      g.drawRect( 0, 0, getSize().width-1, getSize().height-1);
      g.drawString( message, 20, 20 );
    }
  }
}

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