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Re: Object Graphics fonts [message #39677 is a reply to message #39240]

Mon, 07 June 2004 15:12

Michael Wallace
Messages: 409
Registered: December 2003

Senior Member

> I have found that rendering to the screen provides far better results than
> rendering to IDLgrBuffer (IDLgrBuffers are rendered using the software
> renderer). And better graphics adapters will do the anti-aliasing for you
> (check your graphics adapter settings). Render to the screen, read the
> window, and save as PNG.

Hmmm... interesting. Things do look better using and IDLgrWindow,
however is it possible to use the hardware rendering without a display
screen? This plot will be part of an automated process, so there will
never been a screen available. I remember that Direct Graphics will
bomb out and complain about not having a display if you try to create a
graphics window. I assumed that an Object Graphics window would also
complain about not having a display.

Let's test this theory.... time passes .... Hmmm, it seems that creating
an object graphics window without a display available causes it to just
sit there ... no error is coming back, but the program is stuck at the
Obj_New('IDLgrWindow').

Of course the fallback plan is to start up Xvfb and let IDL create its
windows there, unless someone knows a better solution.

-Mike

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[Message index]

		Object Graphics Fonts By: jamiesmyth_uni on Mon, 03 May 2004 14:54
		Re: Object Graphics fonts By: Karl Schultz on Tue, 08 June 2004 14:15
		Re: Object Graphics fonts By: Michael Wallace on Wed, 09 June 2004 12:46
		Re: Object Graphics fonts By: Rick Towler on Wed, 09 June 2004 11:42
		Re: Object Graphics fonts By: Rick Towler on Tue, 08 June 2004 09:41
		Re: Object Graphics fonts By: David Fanning on Mon, 07 June 2004 20:18
		Re: Object Graphics fonts By: Michael Wallace on Wed, 09 June 2004 13:15
		Re: Object Graphics fonts By: Michael Wallace on Mon, 07 June 2004 19:59
		Re: Object Graphics fonts By: Michael Wallace on Mon, 07 June 2004 15:12
		Re: Object Graphics fonts By: Rick Towler on Mon, 07 June 2004 14:36
		Re: Object Graphics fonts By: Michael Wallace on Mon, 07 June 2004 14:15
		Re: Object Graphics fonts By: David Fanning on Mon, 07 June 2004 12:56
		Re: Object Graphics fonts By: David Fanning on Wed, 09 June 2004 14:51
		Re: Object Graphics fonts By: Karl Schultz on Wed, 09 June 2004 14:35
		Re: Object Graphics fonts By: Karl Schultz on Wed, 09 June 2004 14:11
		Re: Object Graphics fonts By: Michael Wallace on Thu, 10 June 2004 09:01
		Re: Object Graphics fonts By: David Fanning on Wed, 09 June 2004 13:06
		Re: Object Graphics fonts By: David Fanning on Thu, 10 June 2004 09:07

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