How can I update my image in a loop?

Question

I want to use "paint( )" automaticlly to display my 3D image slice by slice. I can't understand why it only display my final slice. Below is my coeds:
// press butten to display my 3D image slice by slice
if(e.getActionCommand() == "Play")
     for(int i = 0; i < finalSlice; i++)
          if(presentSlice == finalSlice)
               presentSlice = 0;
          presentSlice = presentSlice + 1;
          // read a new slice from a 3D data. Return
          // matrix is a new 2D image data
          pixel = mccd.readSlice(presentSlice, mapModel);
          //Gererate a new slice image
          img = createImage(new MemoryImageSource(width, height, pixel, 0, width));
          //input the image onto my image panel;
          imgPanel.imageUpdate(img);
          } // Here can not work. Only can               // work in the last time of loop.
public class ImagePanel extends JPanel
     public void imageUpdate(Image image)
          this.image = image;
          repaint();
     public void paintComponent(Graphics g)
          super.paintComponent(g); //paint background
          //Draw image at its natural size first.
          g.drawImage(image, 0, 0, this);
Thanks a lot for any help. Could you email me on
[email protected] Thanks again

Answer 1

You can try the following:
Create a new object that extends runnable. Have a variable that keeps track of the current slice. In its paint() method, paint the current slice.
Now, in its run() method start from the first slice and get into a loop that calls Thread.sleep(1000) and then makes the current slice = to the next slice. you can replace 1000 with whatever duration you want.
My recommendation is that this object should extend a container. After that, you just add the component into a window and display it.
Hope this helps,
Calin
PS: I did this and it worked for me. If you need it I will try to give you some code you can start from.