viewport isViewportPreScaled.ts

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66.66% Branches 4/6

100% Functions 1/1

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  import {
  cache,
  StackViewport,
  Types,
  BaseVolumeViewport,
} from '@cornerstonejs/core';
 
function isViewportPreScaled(
  viewport: Types.IStackViewport | Types.IVolumeViewport,
  targetId: string
): boolean {
  if (viewport instanceof BaseVolumeViewport) {
    const volumeId = targetId.split('volumeId:')[1];
    const volume = cache.getVolume(volumeId);
    return volume.scaling && Object.keys(volume.scaling).length > 0;
  } else Eif (viewport instanceof StackViewport) {
    const { preScale } = viewport.getImageData();
    return preScale.scaled;
  } else {
    throw new Error('Viewport is not a valid type');
  }
}
 
export { isViewportPreScaled };