Re: Out of Memory Error

• To: "Bill Hibbard" <hibbard@xxxxxxxxxxxxxxxxx>
• Subject: Re: Out of Memory Error
• From: "Luke & Suzanne Catania" <lukecatania@xxxxxxxxx>
• Date: Tue, 21 Aug 2001 13:13:57 -0400

Thanks that fixed it.

----- Original Message -----
From: "Bill Hibbard" <hibbard@xxxxxxxxxxxxxxxxx>
To: "Luke & Suzanne Catania" <lukecatania@xxxxxxxxx>
Sent: Tuesday, August 21, 2001 6:33 AM
Subject: Re: Out of Memory Error


> Hi Luke & Suzanne,
>
> I am not sure where the memory leak is. However, it should not
> be necessary to completely destroy your DisplayImpl in order to
> change its properties. The following two calls should do it:
>
>   display.removeAllReferences();
>   display.clearMaps();
>
> Please let us know if these don't solve your problem.
>
> Good luck,
> Bill
>
> > I have a JFrame that contains the VisAD Display for 2D plotting and a
JMenuBar.  In the menus, I allow the user to change the color of the
> > data, background, x-axis, y-axis, and box.  I also allow the user to
change the axis scale.  With the background and box colors it seems easy
> > to change the color using:
> >
> >
display.getDisplayRenderer().setBackgroundColor(backgroundColors[0],backgrou
ndColors[1],backgroundColors[2]);
> >     display.getDisplayRenderer().setBoxColor(boxColors[0], boxColors[1],
boxColors[2]);
> >
> > But for the other properties , not knowing another way to change them in
the display once the user changes one of the above properties using
> > the menu, I
> > invoke the following code:
> >
> >     try {
> >       display.removeAllReferences();
> >       display.destroy();
> >       this.getContentPane().removeAll();  // JFrame contents
> >       this.showDisplay();  // With the property changes from the menu,
it draws another graph all over again
> >     } catch (RemoteException remoteEx) {
> >
this.applicationFeedbackFile.replaceSelection(remoteEx.getLocalizedMessage()
);
> >     } catch (VisADException visadEx) {
> >
this.applicationFeedbackFile.replaceSelection(visadEx.getLocalizedMessage())
;
> >     }
> >
> > and display is decalared somewhere as:
> >
> > DisplayImpl display;
> >
> >
> > I am trying to completely remove the previous display and redraw
another.  After a few of these as the user changes many of the graphs
> > properties, I get the following error of which some of the trace goes
through visAD, but alot through Java, so I am not sure where the problem
> > really lies.  Is there some memory that visAD uses that I am not
properly cleaning up?
> >
> >
> > Exception occurred during event dispatching:
> >
> > java.lang.OutOfMemoryError:
> >
> >  at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:48)
> >
> >  at java.awt.image.Raster.createPackedRaster(Raster.java:404)
> >
> >  at
java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorMo
del.java:637)
> >
> >  at sun.awt.windows.WComponentPeer.createImage(WComponentPeer.java:193)
> >
> >  at java.awt.Component.createImage(Component.java, Compiled Code)
> >
> >  at java.awt.Component.createImage(Component.java, Compiled Code)
> >
> >  at java.awt.Component.createImage(Component.java, Compiled Code)
> >
> >  at java.awt.Component.createImage(Component.java, Compiled Code)
> >
> >  at java.awt.Component.createImage(Component.java, Compiled Code)
> >
> >  at java.awt.Component.createImage(Component.java, Compiled Code)
> >
> >  at visad.java2d.VisADCanvasJ2D.createImages(VisADCanvasJ2D.java,
Compiled Code)
> >
> >  at
visad.java2d.VisADCanvasJ2D$1.componentResized(VisADCanvasJ2D.java:97)
> >
> >  at java.awt.Component.processComponentEvent(Component.java, Compiled
Code)
> >
> >  at java.awt.Component.processEvent(Component.java, Compiled Code)
> >
> >  at java.awt.Container.processEvent(Container.java, Compiled Code)
> >
> >  at java.awt.Component.dispatchEventImpl(Component.java, Compiled Code)
> >
> >  at java.awt.Container.dispatchEventImpl(Container.java, Compiled Code)
> >
> >  at java.awt.Component.dispatchEvent(Component.java, Compiled Code)
> >
> >  at java.awt.EventQueue.dispatchEvent(EventQueue.java, Compiled Code)
> >
> >  at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java,
Compiled Code)
> >
> >  at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:92)
> >
> >  at java.awt.EventDispatchThread.run(EventDispatchThread.java:83)
>
> --
> ----------------------------------------------------------
> Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI  53706
> hibbard@xxxxxxxxxxxxxxxxx  608-263-4427  fax: 608-263-6738
> http://www.ssec.wisc.edu/~billh/vis.html

• References:
  • Out of Memory Error
    • From: Luke & Suzanne Catania
  • Re: Out of Memory Error
    • From: Bill Hibbard