All files / core/src/RenderingEngine/GenericViewport/Planar planarOrientationVectors.ts

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import { MPR_CAMERA_VALUES } from '../../../constants';
import { OrientationAxis } from '../../../enums';
import type { IImageVolume, Point3 } from '../../../types';
import getAcquisitionPlaneOrientation from '../../../utilities/getAcquisitionPlaneOrientation';
import { isPlanarOrientationVectors } from './planarLegacyCompatibility';
import type { PlanarViewState } from './PlanarViewportTypes';
 
type PlanarViewStateVectors = {
  viewPlaneNormal: Point3;
  viewUp: Point3;
};
 
export function getAcquisitionCameraVectors(
  imageVolume: IImageVolume
): PlanarViewStateVectors {
  const { viewPlaneNormal, viewUp } =
    getAcquisitionPlaneOrientation(imageVolume);
 
  return {
    viewPlaneNormal,
    viewUp: viewUp as Point3,
  };
}
 
export function getPlanarViewStateVectors(args: {
  imageVolume: IImageVolume;
  orientation?: PlanarViewState['orientation'];
}): PlanarViewStateVectors | undefined {
  const { imageVolume, orientation } = args;
 
  if (!orientation) {
    return;
  }
 
  if (orientation === OrientationAxis.ACQUISITION) {
    return getAcquisitionCameraVectors(imageVolume);
  }
 
  if (isPlanarOrientationVectors(orientation)) {
    return {
      viewPlaneNormal: [...orientation.viewPlaneNormal] as Point3,
      viewUp: [
        ...(orientation.viewUp ||
          getAcquisitionCameraVectors(imageVolume).viewUp),
      ] as Point3,
    };
  }
 
  const cameraValues = MPR_CAMERA_VALUES[orientation];
 
  if (!cameraValues) {
    return;
  }
 
  return {
    viewPlaneNormal: [...cameraValues.viewPlaneNormal] as Point3,
    viewUp: [...cameraValues.viewUp] as Point3,
  };
}