How to export and import segmentation in volume? about cornerstone3d HOT 9 OPEN

I'm almost done with exporting segmentations and will create a PR soon. The import is done at OHIF here, although probably I will move it to adapters soon

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Here's the code how it works import segmentation.

const { viewport } = libCornerstone.getEnabledElement(element);

await libCornerstone.imageLoader.loadAndCacheImages(imageIds);

const volume = await libCornerstone.volumeLoader.createAndCacheVolume(volumeId, {
    imageIds: imageIds
});

volume.load();

await viewport.setVolumes([{ volumeId }]);

viewport.render();

// "arrayBuffer" is segmentation
const result = libCornerstone.adapters.segmentation.generateToolState(viewport.imageIds, arrayBuffer);

const derivedVolume = await libCornerstone.volumeLoader.createAndCacheDerivedVolume(volume.volumeId, {
    volumeId: segmentationId
});
const derivedVolumeScalarData = derivedVolume.getScalarData();
derivedVolumeScalarData.set(new Uint8Array(result.labelmapBufferArray[0]));

libCornerstoneTools.segmentation.addSegmentation(segmentationId);
await libCornerstoneTools.segmentation.addSegmentationRepresentation(toolGroupId, segmentationId);

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I'm almost done with exporting segmentations and will create a PR soon. The import is done at OHIF here, although probably I will move it to adapters soon

hi,i want to ask you that exporting segmentations is done? :)

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@sedghi How did the contourSets data come from

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@longuto you can take a look at the example https://www.cornerstonejs.org/live-examples/contourrendering and its code.

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@sedghi i know the data structure, I want to know How data is obtained from other software。 because i saw these data in OHIF.

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I was looking at how imports done by "ohif" work. And I couldn't get it to work or something is missing in the code. If anyone knows how it works, can you create a new example?

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I have already managed to present the segmentation

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@jlopes90 how can i get segmentations in arrayBuffer format? is it SEG file?

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