def _update(self, updated, *attrs):
'''(INTERNAL) Zap cached attributes if updated.
'''
if updated:
Vector3d._update(self, updated, '_e9t', '_v4t', *attrs)
def _update(self, updated, *attrs):
'''(INTERNAL) Zap cached attributes if updated.
'''
if updated:
Vector3d._update(self, updated, '_latlon', '_philam', *attrs)
def _update(self, updated):
if updated: # reset cached attrs
self._e9t = self._v4t = None
Vector3d._update(self, updated)