Method RenderingGeometryIntersectsImage

Modules/RT/src/mitkDoseImageVtkMapper2D.cpp:1084–1111

}

bool mitk::DoseImageVtkMapper2D::RenderingGeometryIntersectsImage(const PlaneGeometry *renderingGeometry,
                                                                  SlicedGeometry3D *imageGeometry)
{
  // if either one of the two geometries is nullptr we return true
  // for safety reasons
  if (renderingGeometry == nullptr || imageGeometry == nullptr)
    return true;

  // get the distance for the first cornerpoint
  ScalarType initialDistance = renderingGeometry->SignedDistance(imageGeometry->GetCornerPoint(0));
  for (int i = 1; i < 8; i++)
  {
    mitk::Point3D cornerPoint = imageGeometry->GetCornerPoint(i);

    // get the distance to the other cornerpoints
    ScalarType distance = renderingGeometry->SignedDistance(cornerPoint);

    // if it has not the same signing as the distance of the first point
    if (initialDistance * distance < 0)
    {
      // we have an intersection and return true
      return true;
    }
  }

  // all distances have the same sign, no intersection and we return false
  return false;
}

mitk::DoseImageVtkMapper2D::LocalStorage::~LocalStorage()
{