From b4bd441549ea71dd6c34a9f2158bbebc39ba4e9e Mon Sep 17 00:00:00 2001 From: "Daniel M. Pelt" Date: Thu, 30 Jul 2015 15:34:10 +0200 Subject: Define a transpose for the OpTomo transpose as well Allows for chaining .T calls. --- python/astra/optomo.py | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'python') diff --git a/python/astra/optomo.py b/python/astra/optomo.py index 19b07e3..4a64150 100644 --- a/python/astra/optomo.py +++ b/python/astra/optomo.py @@ -197,6 +197,11 @@ class OpTomoTranspose(scipy.sparse.linalg.LinearOperator): self.parent = parent self.dtype = np.float32 self.shape = (parent.shape[1], parent.shape[0]) + try: + self.T = self.parent + except AttributeError: + # Scipy >= 0.16 defines self.T using self._transpose() + pass def _matvec(self, s): return self.parent.rmatvec(s) @@ -204,6 +209,9 @@ class OpTomoTranspose(scipy.sparse.linalg.LinearOperator): def rmatvec(self, v): return self.parent.matvec(v) + def _transpose(self): + return self.parent + def __mul__(self,s): # Catch the case of a backprojection of 2D/3D data if isinstance(s, np.ndarray) and s.shape==self.parent.sshape: -- cgit v1.2.3