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stackPrefetch stops when selecting different element

See original GitHub issue

Hi, I have two divs. I assign a stack to each and do a cornerstoneTools.stackPrefetch.enable(elem1); to start prefetching the 1nst div. Then, I do the same on the 2nd div (I call it elem2). The problem I found is the prefetching of the first element stops when the 2nd element is enabled.

Is this the expected behavior of stackPrefetch?.

Issue Analytics

State:
Created 5 years ago
Reactions:1
Comments:7 (6 by maintainers)

Top GitHub Comments

1reaction

swederikcommented, Sep 13, 2018

Looks like we can close this since #542 was merged. Thanks!

1reaction

Saucistophecommented, Aug 17, 2018

We’ve add the same problem and solved it by tweaking the stack prefetch:

Prevent the poolManager clearing for prefetches, so that it does not forget what it’s doing.
Insert the images at the beginning, but from last to first. This way, it’s added to the top with the greatest priority, but does load in the intended order.

We’ve tested it with two side-by-side viewer and it worked like a charm: each time we interact with a viewer, the other one stops loading and the current one resumes loading, even if the current image changes. When it’s over, the remaining one loads. Really neat!

I’m working on a PR to handle it with a configuration parameter.

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