missing regions when the image is unmatched to the reference and gets a copy of the reference region list

[kswang1029]

To reproduce:

1. load an image and a region file with 2000 regions
2. append the same image and match it to the reference image
3. keep the region list widget active in the view
4. unmatch the 2nd image and it will get a copy (slow~) of the region list from the 1st image. We will see lots of SET_REGION_ACK but the total count in the region list is incorrect. In this case we expect to see 2000 region registered but there are 1813 only.

[markccchiang]

@kswang1029 are there sample image and region files that I can use to do the test?

[markccchiang]

It looks like the frontend's problem. When unmatching the image, the frontend only sends less than 2000 (say 1813) SET_REGION commands to the backend.

[kswang1029]

It looks like the frontend's problem. When unmatching the image, the frontend only sends less than 2000 (say 1813) SET_REGION commands to the backend.

@markccchiang are we able to tell it is the first part or the last part or random parts of the region list missing?

[veggiesaurus]

I suggest we add a new ICD entry for migrating regions. Perhaps SET_MULTIPLE_REGIONS? So instead of doing this 2000 times, we just send a single message

[markccchiang]

I suggest we add a new ICD entry for migrating regions. Perhaps SET_MULTIPLE_REGIONS? So instead of doing this 2000 times, we just send a single message

I think it is a much more efficient way.