| best way to save thousands of ROI objects? [message #68535] |
Wed, 04 November 2009 09:07  |
j.coenia@gmail.com
Messages: 36
Registered: December 2008
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Member |
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I'm writing an interactive ROI tool that could have 1000s of ROIGROUP
objects over many frames of image data. I'd like to save all the ROIs
in one file. Here's all I can think of:
(1) I experimented with just saving one idlgrmodel containing all the
ROIGROUPs, but it got too big to load back into memory after a ~4000
groups, although it was nice to just load this back into my view
without any rearrangement.
(2) I could save a folder with separate ROIGROUP .sav files for each
frame, but that's clunky, since that could result in thousands of
files! One file would be preferable.
(3) I could extract the important ROIGROUP instance data like
vertices, color, linestyle, etc, then somehow save into an ASSOC
structure variable, sort of a substructure of the roigroup self
structure. Many potential problems. I think I'd have to create a
default large array field to hold the vertices, since you can't ASSOC
deep into a structure with data in pointer fields, right?
(4) I could save each ROIGROUP object to a separate variable
corresponding to its frame in one .sav file (roigroup1,
roigroup2, ....) and access randomly. I just thought of this now.
Might also be difficult to load into memory.
(5) If only there was some way to ASSOC objects...
Thanks for any suggestions. JC
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