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object graphics visualization question [message #67992] Mon, 14 September 2009 08:47 Go to next message
natha is currently offline  natha
Messages: 482
Registered: October 2007
Senior Member
Hi folks,
I enjoy working with objects graphics when I can... Today I'm trying
to export an IDLgrScene to PS using the IDLgrClipboard. I've a problem
with one image that I added to some models using the ALIAS keyword.
When I call the Draw method of the clipboard I've the error you can
find at the end of this message.

If I delete the image, all works good !

Testing my code I realized that the problem is the size of the image
[3,2304,2048]. I don't visualize all the image because the viewplane
is smaller so, actually, the visualized part is something like [*,
0:300,0:300]. I can't cut the image because I implemented a camera and
the user can move the viewplane (PAN the camera) in order to see other
parts of the image. Also, the user can zoom in/out and visualize more
area.

The only problem is when I try to export to PS. Any suggestions to
solve this ?

thanks

nata


*** glibc detected *** /usr/local/itt/idl70/bin/bin.linux.x86/idl:
double free or corruption (!prev): 0x0b1be188 ***
======= Backtrace: =========
/lib/libc.so.6[0x7a82a1]
/usr/local/itt/idl70/bin/bin.linux.x86/libidl.so.7.0(IDL_Mem FreeQuiet
+0x3f)[0xecfe3f]
/usr/local/itt/idl70/bin/bin.linux.x86/libidl.so.7.0[0x12632 2e]
/usr/local/itt/idl70/bin/bin.linux.x86/libidl.so.7.0
(_IDL_MesaD_EndFeedback+0x6a9)[0x126472f]
/usr/local/itt/idl70/bin/bin.linux.x86/libidl.so.7.0[0x122c1 ae]
/usr/local/itt/idl70/bin/bin.linux.x86/libidl.so.7.0(IDL_GrS rcDestDraw
+0x566)[0x122c78e]
....
Re: object graphics visualization question [message #68102 is a reply to message #67992] Fri, 18 September 2009 01:05 Go to previous message
Robbie is currently offline  Robbie
Messages: 165
Registered: February 2006
Senior Member
You could try drawing to the IDLgrBuffer object. I find the buffer
object useful because I can have a secondary step where the user can
arrange various buffers on a page.

Robbie
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