Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 83 84 85 86 87 88 89 90 91 92 93 94 95 | import cache from '../../../cache/cache';
import { loadAndCacheGeometry } from '../../../loaders/geometryLoader';
import { createAndCacheVolume } from '../../../loaders/volumeLoader';
import resolveViewportVolumeId from '../../helpers/resolveViewportVolumeId';
import type { LoadedData } from '../ViewportArchitectureTypes';
import {
getGenericViewportImageDisplaySet,
isGenericViewportImageDisplaySet,
} from '../genericViewportDisplaySetAccess';
import type {
Volume3DDataProvider,
Volume3DGeometryPayload,
Volume3DRegisteredDataSet,
Volume3DVolumePayload,
} from './viewport3DTypes';
export class DefaultVolume3DDataProvider implements Volume3DDataProvider {
async load(
dataId: string,
options?: {
renderMode: 'vtkVolume3d' | 'vtkGeometry3d';
}
): Promise<LoadedData<Volume3DVolumePayload | Volume3DGeometryPayload>> {
if (!options) {
throw new Error(
`[VolumeViewport3D] No load options were provided for ${dataId}`
);
}
const dataSet = this.getDataSet(dataId);
if (options.renderMode === 'vtkVolume3d') {
if (!dataSet?.imageIds?.length) {
throw new Error(
`[VolumeViewport3D] No registered volume dataset for ${dataId}`
);
}
const volumeId = resolveViewportVolumeId(dataSet.volumeId ?? dataId);
const imageVolume = await createAndCacheVolume(volumeId, {
imageIds: dataSet.imageIds,
});
imageVolume.load();
return {
id: dataId,
type: 'image',
imageIds: imageVolume.imageIds || dataSet.imageIds,
imageVolume,
renderMode: 'vtkVolume3d',
volumeId,
};
}
const geometryId = dataSet?.geometryId || dataId;
const geometry =
cache.getGeometry(geometryId) ||
(await loadAndCacheGeometry(geometryId, dataSet?.geometryLoadOptions));
return {
id: dataId,
type: 'geometry',
geometry,
geometryId,
renderMode: 'vtkGeometry3d',
};
}
private getDataSet(dataId: string): Volume3DRegisteredDataSet | undefined {
const dataSet = getGenericViewportImageDisplaySet(dataId);
if (!isVolume3DRegisteredDataSet(dataSet)) {
return;
}
return dataSet;
}
}
function isVolume3DRegisteredDataSet(
value: unknown
): value is Volume3DRegisteredDataSet {
if (!isGenericViewportImageDisplaySet(value)) {
return false;
}
return (
(value.geometryId === undefined || typeof value.geometryId === 'string') &&
(value.volumeId === undefined || typeof value.volumeId === 'string') &&
(value.geometryLoadOptions === undefined ||
(typeof value.geometryLoadOptions === 'object' &&
!Array.isArray(value.geometryLoadOptions)))
);
}
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