├── .github └── FUNDING.yml ├── LICENSE.md ├── README.md ├── __init__.py ├── documentation ├── blendmsh.png ├── blendmshUI.png ├── blendmshprompt.png ├── output.png └── physicalgroups.png ├── panel.py ├── preferences.py ├── processor.py ├── properties.py └── utils_pip.py /.github/FUNDING.yml: -------------------------------------------------------------------------------- 1 | # These are supported funding model platforms 2 | 3 | github: [imsenthur, ] 4 | -------------------------------------------------------------------------------- /LICENSE.md: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Blendmsh 2 | [![Blender](https://img.shields.io/badge/Blender-2.80%2B-orange)](https://www.blender.org/) 3 | [![Codacy Badge](https://api.codacy.com/project/badge/Grade/6ffbb6b533d044d590498fb4d730999b)](https://app.codacy.com/gh/blender-for-science/blendmsh?utm_source=github.com&utm_medium=referral&utm_content=blender-for-science/blendmsh&utm_campaign=Badge_Grade_Dashboard) 4 | [![Release](https://img.shields.io/github/v/release/blender-for-science/blendmsh)](https://github.com/blender-for-science/blendmsh/releases) 5 | [![License](https://img.shields.io/github/license/blender-for-science/blendmsh)](https://github.com/blender-for-science/blendmsh/blob/master/LICENSE.md) 6 | [![Discord](https://img.shields.io/discord/750488363571740747?color=738ADB&label=Discord&style=flat-square)](https://discord.gg/K4jwkG) 7 | 8 | Blendmsh is a bridge between Blender 2.80+ and Gmsh, a fast and light 3D finite element mesh generator. 9 | 10 | ![Blendmsh](documentation/blendmsh.png) 11 | 12 | ## Installation 13 | ![Gmsh prompt](documentation/blendmshprompt.png) 14 | 15 | * Download the latest release as a '.zip' file and head over to Blender 2.80+. 16 | * Go to **Edit->Preferences->Add-on->Install** and point to the downloaded '.zip' file. 17 | * Make sure that the installed add-on is enabled. 18 | * Once enabled, the add-on looks for Gmsh module, it prompts for an installation if Gmsh module is not found. Kindly install it either via the prompt or manually. 19 | 20 | ## Usage 21 | ### Parameters 22 | ![Parameters](documentation/blendmshUI.png) 23 | 24 | * Workspace path 25 | * Physical groups 26 | * Element order 27 | * Meshing algorithm 28 | * auto 29 | * meshadapt 30 | * del2d 31 | * front2d 32 | * delquad 33 | * pack 34 | * initial2d 35 | * del3d 36 | * front3d 37 | * mmg3d 38 | * hxt 39 | * initial3d 40 | 41 | * Element size 42 | * Mesh dimension 43 | * Output 44 | * .msh 45 | * .inp 46 | * .vtk 47 | 48 | ### Definition of Physical Groups 49 | Physical groups can be defined by assigning materials to faces (Boundaries). 50 | 51 | ![Physical Groups](documentation/physicalgroups.png) 52 | 53 | ### Output 54 | Output mesh is saved to the specified workspace path, it can then be imported into FreeCAD, OpenFOAM, Paraview or anyother application that supports the above mentioned mesh format. 55 | 56 | ![Output](documentation/output.png) 57 | 58 | ## Issues 59 | Report any issues or feedback [here](https://github.com/blender-for-science/blendmsh/issues). 60 | 61 | ## References 62 | * [Gmsh](http://gmsh.info/doc/texinfo/gmsh.html) 63 | * [gmsh-api](https://pypi.org/project/gmsh-api) 64 | -------------------------------------------------------------------------------- /__init__.py: -------------------------------------------------------------------------------- 1 | # This program is free software; you can redistribute it and/or modify 2 | # it under the terms of the GNU General Public License as published by 3 | # the Free Software Foundation; either version 3 of the License, or 4 | # (at your option) any later version. 5 | # 6 | # This program is distributed in the hope that it will be useful, but 7 | # WITHOUT ANY WARRANTY; without even the implied warranty of 8 | # MERCHANTIBILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 9 | # General Public License for more details. 10 | # 11 | # You should have received a copy of the GNU General Public License 12 | # along with this program. If not, see . 13 | 14 | ################################################# 15 | 16 | # ------------------- 17 | # Blender for Science 18 | # ------------------- 19 | # Add-on: blendmsh 20 | # Author: Senthur Raj (Github: imsenthur) 21 | # Description: Blendmsh is a bridge between Blender 2.80+ and Gmsh, a fast and light 3D finite element mesh generator. 22 | # https://github.com/blender-for-science/blendmsh 23 | 24 | ################################################# 25 | 26 | bl_info = { 27 | "name" : "blendmsh", 28 | "author" : "Senthur Raj", 29 | "description" : "Blendmsh is a bridge between Blender 2.80+ and Gmsh, a fast and light 3D finite element mesh generator.", 30 | "blender" : (2, 80, 0), 31 | "version" : (1, 1, 0), 32 | "location" : "View3D", 33 | "warning" : "", 34 | "wiki_url" : "https://github.com/blender-for-science/blendmsh", 35 | "tracker_url" : "https://github.com/blender-for-science/blendmsh", 36 | "category" : "Mesh" 37 | } 38 | 39 | import bpy 40 | 41 | from .properties import BlendmshProperties 42 | from .panel import BLENDMSH_PT_Panel 43 | from .processor import BLENDMSH_OT_Meshinit, BLENDMSH_OT_Meshproc, BLENDMSH_OT_Physicalgroups 44 | from .preferences import BlendmshPreferences, BlendmshInstaller 45 | 46 | def register(): 47 | bpy.utils.register_class(BlendmshPreferences) 48 | bpy.utils.register_class(BlendmshInstaller) 49 | bpy.utils.register_class(BlendmshProperties) 50 | bpy.utils.register_class(BLENDMSH_PT_Panel) 51 | bpy.types.Scene.blendmsh = bpy.props.PointerProperty(type=BlendmshProperties) 52 | bpy.utils.register_class(BLENDMSH_OT_Meshinit) 53 | bpy.utils.register_class(BLENDMSH_OT_Meshproc) 54 | bpy.utils.register_class(BLENDMSH_OT_Physicalgroups) 55 | 56 | def unregister(): 57 | bpy.utils.unregister_class(BlendmshPreferences) 58 | bpy.utils.unregister_class(BlendmshInstaller) 59 | bpy.utils.unregister_class(BlendmshProperties) 60 | bpy.utils.unregister_class(BLENDMSH_PT_Panel) 61 | bpy.utils.unregister_class(BLENDMSH_OT_Meshinit) 62 | bpy.utils.unregister_class(BLENDMSH_OT_Meshproc) 63 | bpy.utils.unregister_class(BLENDMSH_OT_Physicalgroups) 64 | 65 | if __name__ == "__main__": 66 | register() -------------------------------------------------------------------------------- /documentation/blendmsh.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/senthurayyappan/blendmsh/0a0b425ca325b3be70968952ad4e3be4621c2fd3/documentation/blendmsh.png -------------------------------------------------------------------------------- /documentation/blendmshUI.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/senthurayyappan/blendmsh/0a0b425ca325b3be70968952ad4e3be4621c2fd3/documentation/blendmshUI.png -------------------------------------------------------------------------------- /documentation/blendmshprompt.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/senthurayyappan/blendmsh/0a0b425ca325b3be70968952ad4e3be4621c2fd3/documentation/blendmshprompt.png -------------------------------------------------------------------------------- /documentation/output.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/senthurayyappan/blendmsh/0a0b425ca325b3be70968952ad4e3be4621c2fd3/documentation/output.png -------------------------------------------------------------------------------- /documentation/physicalgroups.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/senthurayyappan/blendmsh/0a0b425ca325b3be70968952ad4e3be4621c2fd3/documentation/physicalgroups.png -------------------------------------------------------------------------------- /panel.py: -------------------------------------------------------------------------------- 1 | import bpy 2 | 3 | class BLENDMSH_PT_Panel(bpy.types.Panel): 4 | bl_idname = 'BLENDMSH_PT_panel' 5 | bl_label = 'blendmsh' 6 | bl_category = 'blendmsh' 7 | bl_space_type = 'VIEW_3D' 8 | bl_region_type = 'UI' 9 | 10 | def draw(self, context): 11 | layout = self.layout 12 | scene = context.scene 13 | 14 | row = layout.row() 15 | rowsub = layout.row(align=True) 16 | rowsub.prop(scene.blendmsh, 'workspace_path') 17 | 18 | col = layout.column() 19 | col.operator('blendmsh.meshinit', text='Initialize') 20 | 21 | row = layout.row() 22 | row.label(text=" ") 23 | 24 | rowsub = layout.row(align=True) 25 | rowsub.prop(scene.blendmsh, "n_physicalgroups") 26 | rowsub.operator('blendmsh.physicalgroups', icon='ADD') 27 | 28 | row = layout.row() 29 | row.label(text=" ") 30 | 31 | row = layout.row(align=True) 32 | row.prop(scene.blendmsh, "element_order", icon='NONE', expand=True, 33 | slider=True, toggle=False, icon_only=False, event=False, 34 | full_event=False, emboss=True) 35 | 36 | rowsub = layout.row(align=True) 37 | rowsub.prop(scene.blendmsh, 'algorithm') 38 | 39 | rowsub = layout.row(align=True) 40 | rowsub.prop(scene.blendmsh, "cl_max") 41 | 42 | rowsub = layout.row(align=True) 43 | rowsub.prop(scene.blendmsh, "mesh_dimension", expand=True, slider=True, 44 | toggle=False, icon_only=False, emboss=True) 45 | 46 | row = layout.row(align=True) 47 | row.prop(scene.blendmsh, 'output_file_format') 48 | 49 | row = layout.row() 50 | row.label(text=" ") 51 | 52 | col = layout.column() 53 | col.operator('blendmsh.meshproc', text='Mesh') 54 | 55 | row = layout.row() 56 | row.label(text=" ") 57 | 58 | row = layout.row(align=True) 59 | row.alignment = 'RIGHT' 60 | row.label(text="Made with") 61 | row.label(icon='FUND') 62 | 63 | -------------------------------------------------------------------------------- /preferences.py: -------------------------------------------------------------------------------- 1 | import bpy 2 | 3 | class BlendmshPreferences(bpy.types.AddonPreferences): 4 | bl_idname = __package__ 5 | 6 | def draw(self, context): 7 | 8 | import importlib 9 | from .utils_pip import Pip 10 | Pip._ensure_user_site_package() 11 | 12 | layout = self.layout 13 | 14 | if importlib.util.find_spec('gmsh-api') is not None: 15 | layout.label(text='gmsh-api loaded.', icon='INFO') 16 | else: 17 | layout.label(text='Blendmsh requires gmsh-api!', icon='ERROR') 18 | row = layout.row() 19 | row.operator('blendmsh.installer') 20 | 21 | class BlendmshInstaller(bpy.types.Operator): 22 | bl_idname = "blendmsh.installer" 23 | bl_label = "Install gmsh-api" 24 | bl_description = ("Install gmsh-api") 25 | 26 | def execute(self, context): 27 | try: 28 | from .utils_pip import Pip 29 | # Pip.upgrade_pip() 30 | Pip.install('gmsh-api') 31 | 32 | import gmsh_api 33 | print(gmsh_api.__version__) 34 | self.report({'INFO'}, 'Successfully installed gmsh-api.') 35 | except ModuleNotFoundError: 36 | self.report({'ERROR'}, 'Could not install gmsh-api, Kindly install it manually.') 37 | return {'FINISHED'} -------------------------------------------------------------------------------- /processor.py: -------------------------------------------------------------------------------- 1 | import bpy 2 | import os 3 | from collections import OrderedDict 4 | 5 | class BLENDMSH_OT_Physicalgroups(bpy.types.Operator): 6 | bl_idname = "blendmsh.physicalgroups" 7 | bl_label = "" 8 | 9 | diffuse_library = [ 10 | (255/255, 0/255, 199/255, 1), 11 | (255/255, 248/255, 0/255, 1), 12 | (83/255, 255/255, 0/255, 1), 13 | (13/255, 218/255, 134/255, 1), 14 | (115/255, 255/255, 0/255, 1), 15 | (0/255, 217/255, 255/255, 1), 16 | (235/255, 255/255, 0/255, 1), 17 | (255/255, 178/255, 83/255, 1), 18 | (148/255, 13/255, 88/255, 1), 19 | (255/255, 0/255, 141/255, 1), 20 | (255/255, 139/255, 0/255, 1)] 21 | 22 | def execute(self, context): 23 | scene = context.scene 24 | 25 | if scene.blendmsh.initialized: 26 | active_object = bpy.context.active_object 27 | 28 | if 'NATIVE' not in bpy.data.materials: 29 | native_mat = bpy.data.materials.new(name='NATIVE') 30 | active_object.data.materials.append(native_mat) 31 | 32 | for i in range(scene.blendmsh.n_physicalgroups): 33 | if str('GROUP_{}'.format(i+1)) not in bpy.data.materials: 34 | 35 | temp_mat = bpy.data.materials.new(name='GROUP_{}'.format(i+1)) 36 | temp_mat.diffuse_color = self.diffuse_library[i] 37 | active_object.data.materials.append(temp_mat) 38 | 39 | self.report({'INFO'}, 'PHYSICAL GROUPS: {}'.format(scene.blendmsh.n_physicalgroups)) 40 | return{'FINISHED'} 41 | else: 42 | self.report({'ERROR'}, 'Kindly initialize geometry before defining physical groups.') 43 | return {'CANCELLED'} 44 | 45 | class BLENDMSH_OT_Meshinit(bpy.types.Operator): 46 | bl_idname = 'blendmsh.meshinit' 47 | bl_label = 'Blendmsh_Meshinit' 48 | bl_description = 'Triangulates object.' 49 | 50 | def execute(self, context): 51 | scene = context.scene 52 | active_object = bpy.context.active_object 53 | bpy.context.space_data.shading.type = 'MATERIAL' 54 | 55 | filename = active_object.name + '.stl' 56 | bpy.ops.export_mesh.stl(filepath=os.path.join(scene.blendmsh.workspace_path, filename), ascii=True) 57 | active_object.select_set(True) 58 | bpy.ops.object.delete() 59 | 60 | bpy.ops.import_mesh.stl(filepath=os.path.join(scene.blendmsh.workspace_path, filename)) 61 | active_object = bpy.context.active_object 62 | 63 | native_mat = bpy.data.materials.new(name='NATIVE') 64 | active_object.data.materials.append(native_mat) 65 | 66 | scene.blendmsh.initialized = True 67 | return {'FINISHED'} 68 | 69 | 70 | class BLENDMSH_OT_Meshproc(bpy.types.Operator): 71 | bl_idname = 'blendmsh.meshproc' 72 | bl_label = 'Blendmsh_Meshproc' 73 | bl_description = 'Mesh processor.' 74 | 75 | def execute(self, context): 76 | scene = context.scene 77 | 78 | try: 79 | import gmsh_api.gmsh as gmsh 80 | 81 | if scene.blendmsh.initialized: 82 | filename = bpy.context.active_object.name 83 | active_object = bpy.context.active_object 84 | 85 | physical_group_faces = OrderedDict() 86 | bpy.ops.object.mode_set(mode='OBJECT') 87 | for _face in bpy.context.active_object.data.polygons: 88 | if 'GROUP' in active_object.data.materials[_face.material_index].name_full: 89 | group_id = str(active_object.data.materials[_face.material_index].name_full) 90 | 91 | # GMSH INDEX STARTS FROM 1, HENCE '_face.index + 1' 92 | if group_id not in physical_group_faces.keys(): 93 | physical_group_faces[group_id] = set([_face.index + 1]) 94 | else: 95 | physical_group_faces[group_id].add(_face.index + 1) 96 | 97 | data = self.get_raw_data(os.path.join(scene.blendmsh.workspace_path, filename+'.stl')) 98 | 99 | points = OrderedDict() 100 | edges = OrderedDict() 101 | triangles = OrderedDict() 102 | curve_loop = OrderedDict() 103 | 104 | geo_points = OrderedDict() 105 | geo_edges = OrderedDict() 106 | 107 | i = 1 108 | for _surface in data: 109 | for _vertex in _surface: 110 | if _vertex not in points.keys(): 111 | points[_vertex] = i 112 | geo_points[i] = _vertex 113 | i += 1 114 | 115 | for i, _data in enumerate(data): 116 | triangles[i+1] = [points[_data[0]], points[_data[1]], points[_data[2]]] 117 | 118 | i = 1 119 | for _triangle in triangles.values(): 120 | for _edge in self.get_edge_indices(_triangle): 121 | if _edge not in edges.keys() and _edge[::-1] not in edges.keys(): 122 | edges[_edge] = i 123 | geo_edges[i] = _edge 124 | i += 1 125 | 126 | for _triangle_id in triangles.keys(): 127 | curve_loop[_triangle_id] = [] 128 | for connection in self.get_curve_loop(triangles[_triangle_id]): 129 | if connection in edges.keys(): 130 | curve_loop[_triangle_id].append(edges[connection]) 131 | elif connection[::-1] in edges.keys(): 132 | curve_loop[_triangle_id].append(-1*edges[connection[::-1]]) 133 | 134 | all_physical_group_faces = set() 135 | for _face_lists in physical_group_faces.values(): 136 | for _face_id in _face_lists: 137 | all_physical_group_faces.add(_face_id) 138 | 139 | gmsh.initialize() 140 | gmsh.option.setNumber('General.Terminal', 1) 141 | 142 | lc = scene.blendmsh.cl_max 143 | geo = gmsh.model.geo 144 | 145 | for _point in points.keys(): 146 | geo.addPoint(_point[0], _point[1], _point[2], lc, points[_point]) 147 | 148 | for _edge in edges.keys(): 149 | geo.addLine(_edge[0], _edge[1], edges[_edge]) 150 | 151 | for _curve_id in curve_loop.keys(): 152 | geo.addCurveLoop([curve_loop[_curve_id][0], curve_loop[_curve_id][1], curve_loop[_curve_id][2]], _curve_id) 153 | surf_temp = geo.addPlaneSurface([_curve_id], _curve_id) 154 | 155 | if _curve_id in all_physical_group_faces: 156 | gmsh.model.addPhysicalGroup(2, [surf_temp], _curve_id) 157 | 158 | sl = geo.addSurfaceLoop(list(curve_loop.keys())) 159 | _ = geo.addVolume([sl]) 160 | 161 | gmsh.model.geo.synchronize() 162 | 163 | gmsh.option.setNumber("Mesh.Algorithm", int(scene.blendmsh.algorithm)) 164 | gmsh.option.setNumber("Mesh.ElementOrder", int(scene.blendmsh.element_order)) 165 | gmsh.option.setNumber("Mesh.Optimize", 1) 166 | gmsh.option.setNumber("Mesh.QualityType", 2) 167 | gmsh.option.setNumber("Mesh.SaveAll", 1) 168 | gmsh.model.mesh.generate(int(scene.blendmsh.mesh_dimension)) 169 | 170 | gmsh.write(os.path.join(scene.blendmsh.workspace_path, filename+scene.blendmsh.output_file_format)) 171 | gmsh.finalize() 172 | 173 | self.report({'INFO'}, '{} file written to {}'.format(filename+scene.blendmsh.output_file_format, scene.blendmsh.workspace_path)) 174 | return {'FINISHED'} 175 | 176 | else: 177 | self.report({'ERROR'}, 'Kindly initialize geometry before defining physical groups.') 178 | return {'CANCELLED'} 179 | 180 | except ModuleNotFoundError: 181 | self.report({'ERROR'}, 'Couldnot import Gmsh module, Kindly re-install it manually.') 182 | return {'CANCELLED'} 183 | 184 | @staticmethod 185 | def get_raw_data(path): 186 | data = [[]] 187 | with open(path, 'r') as f: 188 | line = f.readline() 189 | while(line): 190 | if 'endfacet' in line: 191 | data.append([]) 192 | else: 193 | if 'vertex' in line: 194 | #IGNORING NORMALS FOR NOW 195 | data[-1].append(tuple(map(float, line[:-1].split(' ')[1:]))) 196 | 197 | line = f.readline() 198 | 199 | return data[:-1] 200 | 201 | @staticmethod 202 | def get_curve_loop(surf): 203 | return [(surf[0], surf[1]), (surf[1], surf[2]), (surf[2], surf[0])] 204 | 205 | @staticmethod 206 | def get_edge_indices(surf): 207 | return [(surf[0], surf[2]), (surf[0], surf[1]), (surf[1], surf[2])] 208 | -------------------------------------------------------------------------------- /properties.py: -------------------------------------------------------------------------------- 1 | import bpy 2 | from bpy.props import StringProperty, IntProperty, FloatProperty, EnumProperty, BoolProperty 3 | 4 | class BlendmshProperties(bpy.types.PropertyGroup): 5 | 6 | initialized : BoolProperty(default=False) 7 | 8 | workspace_path : StringProperty( 9 | name="", 10 | description="Path for the results", 11 | default='/tmp/', 12 | subtype='DIR_PATH') 13 | 14 | cl_max : FloatProperty( 15 | name="", 16 | default=0.1, 17 | min=0.1, 18 | max = 5.0, 19 | precision=3, 20 | description="Maximum size of the element.") 21 | 22 | n_physicalgroups : IntProperty( 23 | name="Physical groups", 24 | default=0, 25 | min=0, 26 | description="Number of physical groups.") 27 | 28 | element_order : EnumProperty( 29 | name='Element order', 30 | items=[ 31 | ('1', '1', 'First order elements'), 32 | ('2', '2', 'Second order elements'), 33 | ('3', '3', 'Third order elements')], 34 | default='1', 35 | description='Element order') 36 | 37 | mesh_dimension : EnumProperty( 38 | name='Mesh dimension', 39 | items=[ 40 | ('1', '1D', '1D mesh'), 41 | ('2', '2D', '2D mesh'), 42 | ('3', '3D', '3D mesh')], 43 | default='3', 44 | description='Dimension of output mesh') 45 | 46 | algorithm : EnumProperty( 47 | name='', 48 | items=[ 49 | ('0', 'auto', 'Automatic'), 50 | ('1', 'meshadapt', 'Meshadapt'), 51 | ('2', 'del2d', 'Delunay2D'), 52 | ('3', 'front2d', 'Front2D'), 53 | ('4', 'delquad', 'Delquad'), 54 | ('5', 'pack', 'Pack'), 55 | ('6', 'initial2d', 'Initial2D'), 56 | ('7', 'del3d', 'Delunay3D'), 57 | ('8', 'front3d', 'Front3D'), 58 | ('9', 'mmg3d', 'MMG3D'), 59 | ('10', 'hxt', 'HXT'), 60 | ('11', 'initial3d', 'Initial3D')], 61 | 62 | default='0', 63 | description="Algorithm") 64 | 65 | output_file_format : EnumProperty( 66 | name='Output', 67 | items=[ 68 | ('.msh', '.msh', 'Gmsh (.msh)'), 69 | ('.inp', '.inp', 'Abaqus (.inp)'), 70 | ('.vtk', '.vtk', 'The Visualization Toolkit (.vtk)')], 71 | default='.msh', 72 | description='Output file format') 73 | 74 | -------------------------------------------------------------------------------- /utils_pip.py: -------------------------------------------------------------------------------- 1 | # -*- coding:utf-8 -*- 2 | 3 | # ##### BEGIN GPL LICENSE BLOCK ##### 4 | # 5 | # This program is free software; you can redistribute it and/or 6 | # modify it under the terms of the GNU General Public License 7 | # as published by the Free Software Foundation; either version 2 8 | # of the License, or (at your option) any later version. 9 | # 10 | # This program is distributed in the hope that it will be useful, 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | # GNU General Public License for more details. 14 | # 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program; if not, write to the Free Software Foundation, 17 | # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 18 | # 19 | # ##### END GPL LICENSE BLOCK ##### 20 | 21 | # 22 | 23 | # ---------------------------------------------------------- 24 | # Author: Stephen Leger (s-leger) 25 | # 26 | # ---------------------------------------------------------- 27 | import bpy 28 | import subprocess 29 | 30 | 31 | PYPATH = bpy.app.binary_path_python 32 | 33 | 34 | class Pip: 35 | 36 | def __init__(self): 37 | self._ensurepip() 38 | 39 | @staticmethod 40 | def _ensure_user_site_package(): 41 | import os 42 | import site 43 | import sys 44 | site_package = site.getusersitepackages() 45 | if not os.path.exists(site_package): 46 | site_package = bpy.utils.user_resource('SCRIPTS', "site_package", create=True) 47 | site.addsitedir(site_package) 48 | if site_package not in sys.path: 49 | sys.path.append(site_package) 50 | ''' 51 | @staticmethod 52 | def _ensure_user_site_package(): 53 | import os 54 | import site 55 | import sys 56 | site_package = site.getusersitepackages() 57 | if os.path.exists(site_package): 58 | if site_package not in sys.path: 59 | sys.path.append(site_package) 60 | else: 61 | site_package = bpy.utils.user_resource('SCRIPTS', "site_package", create=True) 62 | site.addsitedir(site_package) 63 | ''' 64 | def _cmd(self, action, options, module): 65 | if options is not None and "--user" in options: 66 | self._ensure_user_site_package() 67 | 68 | cmd = [PYPATH, "-m", "pip", action] 69 | 70 | if options is not None: 71 | cmd.extend(options.split(" ")) 72 | 73 | cmd.append(module) 74 | return self._run(cmd) 75 | 76 | def _popen(self, cmd): 77 | popen = subprocess.Popen(cmd, stdout=subprocess.PIPE, universal_newlines=True) 78 | for stdout_line in iter(popen.stdout.readline, ""): 79 | yield stdout_line 80 | popen.stdout.close() 81 | popen.wait() 82 | 83 | def _run(self, cmd): 84 | res = False 85 | status = "" 86 | for line in self._popen(cmd): 87 | if "ERROR:" in line: 88 | status = line.strip() 89 | if "Error:" in line: 90 | status = line.strip() 91 | print(line) 92 | if "Successfully" in line: 93 | status = line.strip() 94 | res = True 95 | return res, status 96 | 97 | def _ensurepip(self): 98 | pip_not_found = False 99 | try: 100 | import pip 101 | except ImportError: 102 | pip_not_found = True 103 | pass 104 | if pip_not_found: 105 | self._run([PYPATH, "-m", "ensurepip", "--default-pip"]) 106 | 107 | @staticmethod 108 | def upgrade_pip(): 109 | return Pip()._cmd("install", "--upgrade", "pip") 110 | 111 | @staticmethod 112 | def uninstall(module, options=None): 113 | """ 114 | :param module: string module name with requirements see:[1] 115 | :param options: string command line options see:[2] 116 | :return: True on uninstall, False if already removed, raise on Error 117 | [1] https://pip.pypa.io/en/stable/reference/pip_install/#id29 118 | [2] https://pip.pypa.io/en/stable/reference/pip_install/#id47 119 | """ 120 | if options is None or options.strip() == "": 121 | # force confirm 122 | options = "-y" 123 | return Pip()._cmd("uninstall", options, module) 124 | 125 | @staticmethod 126 | def install(module, options=None): 127 | """ 128 | :param module: string module name with requirements see:[1] 129 | :param options: string command line options see:[2] 130 | :return: True on install, False if already there, raise on Error 131 | [1] https://pip.pypa.io/en/stable/reference/pip_install/#id29 132 | [2] https://pip.pypa.io/en/stable/reference/pip_install/#id47 133 | """ 134 | if options is None or options.strip() == "": 135 | # store in user writable directory, use wheel, without deps 136 | options = "--user --only-binary all --no-deps" 137 | return Pip()._cmd("install", options, module) 138 | 139 | @staticmethod 140 | def blender_version(): 141 | """ 142 | :return: blender version tuple 143 | """ 144 | return bpy.app.version 145 | 146 | @staticmethod 147 | def python_version(): 148 | """ 149 | :return: python version object 150 | """ 151 | import sys 152 | # version.major, version.minor, version.micro 153 | return sys.version_info 154 | --------------------------------------------------------------------------------