-------------- Original message ----------------------
From: Thomas Radtke <
[hidden email]>
> Hi,
>
> I have implemented a MouseListener in a plugin and read the coordinates
> where the user has clicked from the MouseEvent class. Now I have two
> problems with magnified images.
>
> (1) I don't know how to find out what the magnification is. I've tried
> to read it from
>
> new ImageCanvas(my_imageplus).getMagnification()
>
> but that always returns 1
>
> (2) The Listener stops listening outside the original area after
> magnifying the image
>
> I've spent several hours on this problem and went through the message
> archive but to no avail. Can anyone here point me in the right direction?
>
> Thanks,
>
> Thmas
Hi Thomas,
The snippet below works for me. I've probably included way more code than you need.
Best wishes, Bill
==============================================
public class Gradient_Edges implements PlugInFilter, MouseListener {
ImageCanvas canvas;
boolean click=false;
Point clickPoint = new Point();
.
.
.
canvas = imp.getWindow().getCanvas();
canvas.addMouseListener(this);
waitForClick();
double mag = canvas.getMagnification();
double cx = (int)(clickPoint.x/mag);
double cy = (int)(clickPoint.y/mag);
public void waitForClick() {
while(!click) IJ.wait(300);
}
public void mouseClicked(MouseEvent e){
click = true;
clickPoint.x = e.getX();
clickPoint.y = e.getY(); .
}
public void mouseEntered(MouseEvent e){};
public void mouseExited(MouseEvent e){};
public void mouseReleased(MouseEvent e){};
public void mousePressed(MouseEvent e){};
Locked
