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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | 1x 1x | import {
Types,
cache,
eventTarget,
triggerEvent,
Enums,
} from '@cornerstonejs/core';
import { getWebWorkerManager } from '@cornerstonejs/core';
import {
LabelmapSegmentationData,
LabelmapSegmentationDataStack,
LabelmapSegmentationDataVolume,
} from '../../../../types/LabelmapTypes';
import { computeVolumeSegmentationFromStack } from '../../convertStackToVolumeSegmentation';
import { WorkerTypes } from '../../../../enums';
const workerManager = getWebWorkerManager();
const triggerWorkerProgress = (eventTarget, progress) => {
triggerEvent(eventTarget, Enums.Events.WEB_WORKER_PROGRESS, {
progress,
type: WorkerTypes.POLYSEG_LABELMAP_TO_SURFACE,
});
};
/**
* Converts a labelmap representation to a surface representation.
*
* @param labelmapRepresentationData - The labelmap segmentation data.
* @param segmentIndex - The index of the segment to convert.
* @param isVolume - Optional flag indicating whether the labelmap is a volume or a stack. Default is true.
* @returns A promise that resolves to the surface data.
*/
export async function convertLabelmapToSurface(
labelmapRepresentationData: LabelmapSegmentationData,
segmentIndex: number,
isVolume = true
): Promise<Types.SurfaceData> {
let volumeId;
if (isVolume) {
volumeId = (labelmapRepresentationData as LabelmapSegmentationDataVolume)
.volumeId;
} else {
const { imageIdReferenceMap } =
labelmapRepresentationData as LabelmapSegmentationDataStack;
({ volumeId } = await computeVolumeSegmentationFromStack({
imageIdReferenceMap,
}));
}
const volume = cache.getVolume(volumeId);
const scalarData = volume.getScalarData();
const { dimensions, spacing, origin, direction } = volume;
triggerWorkerProgress(eventTarget, 0);
const results = await workerManager.executeTask(
'polySeg',
'convertLabelmapToSurface',
{
scalarData,
dimensions,
spacing,
origin,
direction,
segmentIndex,
},
{
callbacks: [
(progress) => {
triggerWorkerProgress(eventTarget, progress);
},
],
}
);
triggerWorkerProgress(eventTarget, 1);
return results;
}
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