def get_normals_under(self, position):
if self.surface is not None:
(x, y, distance) = self.spherical_to_longlat(self.cartesian_to_spherical(position))
vectors = self.surface.get_normals_at(x, y)
else:
vectors = (LVector3d.up(), LVector3d.forward(), LVector3d.left())
sync_frame = SynchroneReferenceFrame(self)
return (sync_frame.get_orientation().xform(vectors[0]),
sync_frame.get_orientation().xform(vectors[1]),
sync_frame.get_orientation().xform(vectors[2]))
def get_normals_at(self, coord):
vectors = (LVector3d.up(), LVector3d.forward(), LVector3d.left())
return vectors
def get_normals_under_xy(self, x, y):
if self.surface is not None:
vectors = self.surface.get_normals_at(x, y)
else:
vectors = (LVector3d.up(), LVector3d.forward(), LVector3d.left())
return vectors
