[JAVA3D] AW: [JAVA3D] Canvas3D property values

[Florin Herinean]

Title: Canvas3D property values

It's not related to java3d but to the awt subsystem. You can't get any valid values from your canvas3d (or btw any other awt component) before the native peer is created. You should first create your frame, put inside your canvas3d with the associated universe, eventualy create your scenegraph but don't attach it to the universe, invoke show to display your window and AFTER that query the canvas to get your properties, set ScreenScale and atach the scene graph to your universe.

 

Hope it works that way (it should, but I didn't tried it).

 

Florin

-----Ursprüngliche Nachricht-----
Von: Jack Bowie [mailto:[EMAIL PROTECTED]]
Gesendet: Montag, 7. Oktober 2002 15:55
An: [EMAIL PROTECTED]
Betreff: [JAVA3D] Canvas3D property values

I am trying to get various screen properties (window PhysicalWidth, etc.) from my Canvas3D and am having timing problems. The objective is to set ScreenScale (I'm using parallel projection) correctly for a full window presentation of my geometry.

I instantiate the Canvas3D, connect it to a SimpleUniverse, create a SceneGraph and make it live. I then query the canvas (via getPhysicalWidth(), etc) for the properties. Get all zeros. Assuming a timing issue, I have launched a thread and used InvokeLater(). Still zeros.

If I wait to read the properties until I explicitly mouse click in the (now visible) canvas, the values are fine.

Any recommendations on how to synchronize my application thread to get the values?

Thanks,
Jack