General scale down method

  /**
   * Method to create a new picture 1/2 the size of the original
   * @return the 1/2 sized picture
   /
  public Picture scaleDown()
  {
    Picture targetPicture = new Picture(this.getWidth()/2  + 1,this.getHeight()/2 + 1);
    Pixel sourcePixel = null;
    Pixel targetPixel = null;
    
    // loop through the columns
    for (int sourceX = 0, targetX=0; 
         sourceX < this.getWidth(); 
         sourceX+=2, targetX++)
    {
      // loop through the rows
      for (int sourceY=0, targetY=0; 
           sourceY < this.getHeight(); 
           sourceY+=2, targetY++)
      {
        sourcePixel = this.getPixel(sourceX,sourceY);
        targetPixel = targetPicture.getPixel(targetX,targetY);
        targetPixel.setColor(sourcePixel.getColor());
      }
    }
    
    // show the resulting picture
    targetPicture.show();
    
    return targetPicture;
    
  } 

Link to this Page

• Picture Methods from Teachers last edited on 16 June 2004 at 10:01 am by 216-88-16-125.tes.bil.biltmorecommunications.net