def _createPupilPlaneCoordinatesInMeters(self):
     return bfft.distances_x_map(
         self.focalPlaneSizeInPixels(),
         self.pupilPlanePixelSizeInMeters())
 def _createFocalPlaneCoordinatesInArcSec(self):
     return bfft.distances_x_map(
         self.focalPlaneSizeInPixels(),
         self.focalPlanePixelSizeInArcsec())