Pythonify

__init__.py

@@ -1,7 +1,7 @@
 """BlenderPhotonics - a Blender addon for 3-D mesh generation and Monte Carlo simulation
 
 * Authors: (c) 2021-2022 Qianqian Fang <q.fang at neu.edu>
-	   (c) 2021	 Yuxuan Zhang <zhang.yuxuan1 at northeastern.edu>
+           (c) 2021	 Yuxuan Zhang <zhang.yuxuan1 at northeastern.edu>
 * License: GNU General Public License V3 or later (GPLv3)
 * Version: v2022 (v0.6.0)
 * Website: http://mcx.space/bp
@@ -22,7 +22,7 @@
 users to create sophisticated optical simulations needed for a wide range of
 biophotonics applications.
 
-Installing this module via Blender menu "Edit\Preference\Add-ons\Install..."
+Installing this module via Blender menu "Edit\\Preference\\Add-ons\\Install..."
 enables the BlenderPhotonics panel. The BlenderPhotonics panel contains
 the following 4 submodules:
 
@@ -38,7 +38,8 @@
 
 @article{BlenderPhotonics2022,
   author = {Yuxuan Zhang and Qianqian Fang},
-  title = {{BlenderPhotonics: an integrated open-source software environment for three-dimensional meshing and photon simulations in complex tissues}},
+  title = {{BlenderPhotonics: an integrated open-source software environment for three-dimensional meshing and photon
+   simulations in complex tissues}},
   volume = {27},
   journal = {Journal of Biomedical Optics},
   number = {8},
@@ -54,27 +55,31 @@
 
 """
 
+import bpy
+from .ui import BlenderPhotonics_UI
+from .blender2mesh import scene2mesh
+from .mesh2blender import mesh2scene
+from .obj2surf import object2surf
+from .runmmc import runmmc
+from .niifile import niifile
+from .nii2mesh import nii2mesh
+from bpy.props import PointerProperty
+
+
 bl_info = {
     "name": "BlenderPhotonics",
     "author": "(c) 2021 Yuxuan (Victor) Zhang, (c) 2021 Qianqian Fang",
     "version": (1, 0),  # min plug-in version
     "blender": (2, 82, 0),  # min blender version
     "location": "Layout，UI",
     "description": "An integrated 3D mesh generation and Monte Carlo photon transport simulation environment",
-    "warning": "This plug-in requires the preinstallation of Iso2Mesh (http://iso2mesh.sf.net) and MMCLAB (http://mcx.space)",
+    "warning": "This plug-in requires the preinstallation of Iso2Mesh (http://iso2mesh.sf.net) and "
+               "MMCLAB (http://mcx.space)",
     "doc_url": "https://github.com/COTILab/BlenderPhotonics",
     "tracker_url": "https://github.com/COTILab/BlenderPhotonics/issues",
     "category": "User Interface",
 }
-import bpy
-from .ui import BlenderPhotonics_UI
-from .blender2mesh import scene2mesh
-from .mesh2blender import mesh2scene
-from .obj2surf import object2surf
-from .runmmc import runmmc
-from .niifile import niifile
-from .nii2mesh import nii2mesh
-from bpy.props import PointerProperty
+
 
 def register():
     print("Registering BlenderPhotonics")
@@ -98,4 +103,3 @@ def unregister():
     bpy.utils.unregister_class(runmmc)
     bpy.utils.unregister_class(BlenderPhotonics_UI)
     del bpy.types.Scene.blender_photonics
-

backend.py

@@ -0,0 +1,56 @@
+from abc import ABC, abstractmethod, abstractproperty
+from collections import namedtuple
+from pathlib import Path
+
+
+PackageBrief = namedtuple('PackageBrief', ['name', 'probe_fun'])
+
+
+M_SCRIPTS = Path(__file__).parent / 'script'
+OUTPUT_DIR = Path(__file__).parent / 'out'
+GATEWAY_DIR = Path(__file__).parent / 'gateway'
+PACKAGES = [PackageBrief(name='jsonlab', probe_fun='loadjson'),
+            PackageBrief(name='iso2mesh', probe_fun='s2m')]
+
+
+class BackendABC(ABC):
+    @abstractmethod
+    def __init__(self, engine_type: str):
+        pass
+
+    @
+
+class OctaveBackend(BackendABC):
+    def __init__(self, engine_type: str):
+        self.engine_type = engine_type.lower()
+        if self.engine_type == 'octave':
+            self.EngineError2 = self.EngineError1 = __import__('oct2py.utils', globals(), locals(), ['Oct2PyError'], 0)
+            self.engine = __import__('oct2py', globals(), locals(), ['Oct2Py'], 0)
+        else:
+            matlab_stuff = __import__('matlab.engine', globals(), locals(), ['MatlabEngine',
+                                                                             'MatlabExecutionError',
+                                                                             'RejectedExecutionError'], 0)
+            self.EngineError1 = matlab_stuff.MatlabExecutionError
+            self.EngineError1 = matlab_stuff.RejectedExecutionError
+            self.engine = matlab_stuff.MatlabEngine
+
+    def __getattr__(self, item):
+        def inner(*args, nout: int = 0):
+            with self.engine() as engine:
+                # import
+                engine.addpath(M_SCRIPTS)
+                try:
+                    packages_to_load = filter(lambda p: p['name'] in PACKAGES, engine.pkg('list').tolist()[0])
+                    for package in packages_to_load:
+                        engine.addpath(str(Path(package['dir'])))
+                except IndexError:
+                    raise ImportError('No local packages installed for Octave')  # TODO: another exception type
+                try:
+                    return engine.feval(item, *args, nargout=nout)
+                except self.EngineError1:
+                    return engine.feval(item, *args, nout=nout)
+        return inner
+
+
+def get_backend(engine_type='octave'):
+    return Backend(engine_type)