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Diffstat (limited to 'python/astra/experimental.pyx')
| -rw-r--r-- | python/astra/experimental.pyx | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/python/astra/experimental.pyx b/python/astra/experimental.pyx new file mode 100644 index 0000000..9bb73a2 --- /dev/null +++ b/python/astra/experimental.pyx @@ -0,0 +1,86 @@ +# ----------------------------------------------------------------------- +# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp +# 2013-2016, CWI, Amsterdam +# +# Contact: astra@uantwerpen.be +# Website: http://sf.net/projects/astra-toolbox +# +# This file is part of the ASTRA Toolbox. +# +# +# The ASTRA Toolbox is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# The ASTRA Toolbox is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>. +# +# ----------------------------------------------------------------------- +# +# distutils: language = c++ +# distutils: libraries = astra + +include "config.pxi" + +IF HAVE_CUDA==True: + + import six + from .PyIncludes cimport * + from libcpp.vector cimport vector + + cdef extern from "astra/CompositeGeometryManager.h" namespace "astra": + cdef cppclass CCompositeGeometryManager: + bool doFP(CProjector3D *, vector[CFloat32VolumeData3DMemory *], vector[CFloat32ProjectionData3DMemory *]) + bool doBP(CProjector3D *, vector[CFloat32VolumeData3DMemory *], vector[CFloat32ProjectionData3DMemory *]) + + cdef extern from *: + CFloat32VolumeData3DMemory * dynamic_cast_vol_mem "dynamic_cast<astra::CFloat32VolumeData3DMemory*>" (CFloat32Data3D * ) except NULL + CFloat32ProjectionData3DMemory * dynamic_cast_proj_mem "dynamic_cast<astra::CFloat32ProjectionData3DMemory*>" (CFloat32Data3D * ) except NULL + + cimport PyProjector3DManager + from .PyProjector3DManager cimport CProjector3DManager + cimport PyData3DManager + from .PyData3DManager cimport CData3DManager + + cdef CProjector3DManager * manProj = <CProjector3DManager * >PyProjector3DManager.getSingletonPtr() + cdef CData3DManager * man3d = <CData3DManager * >PyData3DManager.getSingletonPtr() + + def do_composite(projector_id, vol_ids, proj_ids, t): + cdef vector[CFloat32VolumeData3DMemory *] vol + cdef CFloat32VolumeData3DMemory * pVolObject + cdef CFloat32ProjectionData3DMemory * pProjObject + for v in vol_ids: + pVolObject = dynamic_cast_vol_mem(man3d.get(v)) + if pVolObject == NULL: + raise Exception("Data object not found") + if not pVolObject.isInitialized(): + raise Exception("Data object not initialized properly") + vol.push_back(pVolObject) + cdef vector[CFloat32ProjectionData3DMemory *] proj + for v in proj_ids: + pProjObject = dynamic_cast_proj_mem(man3d.get(v)) + if pProjObject == NULL: + raise Exception("Data object not found") + if not pProjObject.isInitialized(): + raise Exception("Data object not initialized properly") + proj.push_back(pProjObject) + cdef CCompositeGeometryManager m + cdef CProjector3D * projector = manProj.get(projector_id) # may be NULL + if t == "FP": + if not m.doFP(projector, vol, proj): + raise Exception("Failed to perform FP") + else: + if not m.doBP(projector, vol, proj): + raise Exception("Failed to perform BP") + + def do_composite_FP(projector_id, vol_ids, proj_ids): + do_composite(projector_id, vol_ids, proj_ids, "FP") + + def do_composite_BP(projector_id, vol_ids, proj_ids): + do_composite(projector_id, vol_ids, proj_ids, "BP") |