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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 | 1x 1x 1x 1x 1x 1x 1x 1x 1x | import getSliceRange from './getSliceRange';
import getTargetVolumeAndSpacingInNormalDir from './getTargetVolumeAndSpacingInNormalDir';
import {
ActorSliceRange,
IVolumeViewport,
ICamera,
VolumeActor,
} from '../types';
/**
* Calculates the slice range for the given volume based on its orientation
* @param viewport - Volume viewport
* @param volumeId - Id of one of the volumes loaded on the given viewport
* @param useSlabThickness - If true, the slice range will be calculated
* based on the slab thickness instead of the spacing in the normal direction
* @returns slice range information
*/
function getVolumeSliceRangeInfo(
viewport: IVolumeViewport,
volumeId: string,
useSlabThickness = false
): {
sliceRange: ActorSliceRange;
spacingInNormalDirection: number;
camera: ICamera;
} {
const camera = viewport.getCamera();
const { focalPoint, viewPlaneNormal } = camera;
const { spacingInNormalDirection, actorUID } =
getTargetVolumeAndSpacingInNormalDir(
viewport,
camera,
volumeId,
useSlabThickness
);
Iif (!actorUID) {
throw new Error(
`Could not find image volume with id ${volumeId} in the viewport`
);
}
const actorEntry = viewport.getActor(actorUID);
Iif (!actorEntry) {
console.warn('No actor found for with actorUID of', actorUID);
return null;
}
const volumeActor = actorEntry.actor as VolumeActor;
const sliceRange = getSliceRange(volumeActor, viewPlaneNormal, focalPoint);
return {
sliceRange,
spacingInNormalDirection,
camera,
};
}
export default getVolumeSliceRangeInfo;
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