Hi!
I am developing a software using pyqtgraph which uses the ROI capabilities
to create mask for area detectors. Everything works when the bounding
rectangle of the ROIs are less than 1000. But recently I had to work with
some of the detectors which are large in size i.e 2000X2000 pixels and
sometimes I need to create mask using polyline ROI, the bounding rectangle
of which may become larger than 1000. Once the bounding rectangle becomes
larger than 1000 the ROI.getArrayRegion crashes giving an exception as
shown below:
Traceback (most recent call last):
File "C:\Users\Mrinal Bera\Documents\Visual Studio
2017\Projects\XRTools\XRTools\maskWidget.py", line 260, in create_all_masks
self.create_mask(key)
File "C:\Users\Mrinal Bera\Documents\Visual Studio
2017\Projects\XRTools\XRTools\maskWidget.py", line 237, in create_mask
mpossx=self.mask[mask_number].getArrayRegion(possx,self.pg_image)
File "C:\Program
Files\Anaconda3\lib\site-packages\pyqtgraph\graphicsItems\ROI.py", line
2025, in getArrayRegion
raise Exception()
Exception
As per the exception raised in line 2025 of ROI.getArrayRegion method there
is indeed an exception for bounding rectangle larger than 1000. This
exception only raises with polylineROIs.
My question to Luke or any other who knows about this is: Is there any
reason for this exception to be put in explicitly? Can I get around this
exception by any other means without commenting the lines 2024-2025 of
ROI.getArrayRegion method?
Thanks in Advance!
Best,
Mrinal
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