| Re: problem with corrupted pix-maps [message #12162 is a reply to message #12160] |
Mon, 29 June 1998 00:00   |
Phillip & Suzanne
Messages: 31
Registered: June 1998
|
Member |
|
|
David Fanning wrote:
> Mirko Vukovic (mirko_vukovic@notes.mrc.sony.com) offers us
> a programming puzzle when he writes:
>> following instructions of some of our more esteemed colleagues on this group,
>> I created copies of two windows in memory.
[ snipped description of things going awry ]
>> Now, in such situations,the first thought that comes to mind is a bug in IDL.
>> The second (and usually more correct thought) is that I overlooked something.
> A simple switch of an x coordinate in place of a y coordinate
> has been known to produce effects such as this. Does the problem go
> away if your window is square?
I have also had problems using pixmap windows. In my case, the problem
occurred when I was using IDL 4.0 on a Macintosh. I had a pixmap window that
was supposed to hold frames from a movie. I decided to create a single, very
large pixmap window, and handle creating offsets myself to extract just the
portion for the current frame. I thought this would work well, and it did on
both my Windows NT workstation and the UNIX workstation I use. When I tried
to test it on the Mac, things got quite weird. When I decided to use a
separate pixmap window for each frame, and copied the entire window each time,
the problem went away.
IDL 5.0 fixed the problem I was seeing, so I don't know what was going on.
However, the hypothesis that your problem *MIGHT* be a bug in IDL is truly feasible.
Phillip David
IDL Tool Developer
XonTech, Inc.
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
