Hi Kursat,
I am trying to get the image of the rendered maps from the display. When I call the
"getImage()" method of "DisplayImplJ2D", the thread waits infinitely. I think a
deadlock state occurs inside. How can get the image of the display? Thanks in advance...
We've had problems with lock ups during image capture. I haven't tried
any image captures using the visad 2D facilities, just the 3D.
When we are in interactive mode (as opposed to batch mode) we use the
Robot class (http://java.sun.com/j2se/1.3/docs/api/java/awt/Robot.html)
to do a screen capture. This allows us to capture more than the
DisplayImpl (e.g., multiple displays in the same window) However, the
robot capture is wysiwig - if there are other windows occluding the
window you want captured you'll get what is shown on the screen.
As to the lock up - there is a possibility for the capture thread to
wait indefinitely using VisADCanvasJ3D. I haven't looked into this
fully. One thing you can do when you are hung up is to do a stack trace
dump - this will show you where exactly you are stalled.
(To do a stack trace: On Unixes do a kill -3 of the jvm process. On
windows do a control-break in the command window)
-Jeff
