precision_drawing_tools/__init__.py

   1 # ##### BEGIN GPL LICENSE BLOCK #####
   2 #
   3 #  This program is free software; you can redistribute it and/or
   4 #  modify it under the terms of the GNU General Public License
   5 #  as published by the Free Software Foundation; either version 2
   6 #  of the License, or (at your option) any later version.
   7 #
   8 #  This program is distributed in the hope that it will be useful,
   9 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 #  GNU General Public License for more details.
  12 #
  13 #  You should have received a copy of the GNU General Public License
  14 #  along with this program; if not, write to the Free Software Foundation,
  15 #  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16 #
  17 # ##### END GPL LICENSE BLOCK #####
  18 #
  19 # <pep8 compliant>
  20 #
  21 # -----------------------------------------------------------------------
  22 # Author: Alan Odom (Clockmender), Rune Morling (ermo) Copyright (c) 2019
  23 # -----------------------------------------------------------------------
  24 #
  25 # ----------------------------------------------
  26 # Define Addon info
  27 # ----------------------------------------------
  28 #
  29 bl_info = {
  30     "name": "Precision Drawing Tools (PDT)",
  31     "author": "Alan Odom (Clockmender), Rune Morling (ermo)",
  32     "version": (1, 4, 0),
  33     "blender": (2, 83, 0),
  34     "location": "View3D > UI > PDT",
  35     "description": "Precision Drawing Tools for Acccurate Modelling",
  36     "warning": "",
  37     "doc_url": "https://github.com/Clockmender/Precision-Drawing-Tools/wiki",
  38     "category": "3D View",
  39 }
  40
  41
  42 # ----------------------------------------------
  43 # Import modules
  44 # ----------------------------------------------
  45 if "bpy" in locals():
  46     import importlib
  47
  48     importlib.reload(pdt_design)
  49     importlib.reload(pdt_pivot_point)
  50     importlib.reload(pdt_menus)
  51     importlib.reload(pdt_library)
  52     importlib.reload(pdt_view)
  53     importlib.reload(pdt_xall)
  54     importlib.reload(pdt_bix)
  55     importlib.reload(pdt_etof)
  56     importlib.reload(pdt_tangent)
  57     importlib.reload(pdt_trig_waves)
  58 else:
  59     from . import pdt_design
  60     from . import pdt_pivot_point
  61     from . import pdt_menus
  62     from . import pdt_library
  63     from . import pdt_view
  64     from . import pdt_xall
  65     from . import pdt_bix
  66     from . import pdt_etof
  67     from . import pdt_tangent
  68     from . import pdt_trig_waves
  69
  70 import bpy
  71 import os
  72 from pathlib import Path
  73 from bpy.types import (
  74     AddonPreferences,
  75     PropertyGroup, Scene,
  76     WindowManager,
  77     Object,
  78 )
  79 from bpy.props import (
  80     BoolProperty,
  81     CollectionProperty,
  82     EnumProperty,
  83     FloatProperty,
  84     FloatVectorProperty,
  85     IntProperty,
  86     PointerProperty,
  87     StringProperty,
  88 )
  89 from .pdt_msg_strings import (
  90     PDT_DES_COORDS,
  91     PDT_DES_FILLETPROF,
  92     PDT_DES_FILLETRAD,
  93     PDT_DES_FILLETSEG,
  94     PDT_DES_FILLETVERTS,
  95     PDT_DES_FILLINT,
  96     PDT_DES_FLIPANG,
  97     PDT_DES_FLIPPER,
  98     PDT_DES_LIBCOLS,
  99     PDT_DES_LIBMATS,
 100     PDT_DES_LIBMODE,
 101     PDT_DES_LIBOBS,
 102     PDT_DES_LIBSER,
 103     PDT_DES_MOVESEL,
 104     PDT_DES_OBORDER,
 105     PDT_DES_OFFANG,
 106     PDT_DES_OFFDIS,
 107     PDT_DES_OFFPER,
 108     PDT_DES_OPMODE,
 109     PDT_DES_OUTPUT,
 110     PDT_DES_PIVOTDIS,
 111     PDT_DES_PPLOC,
 112     PDT_DES_PPSCALEFAC,
 113     PDT_DES_PPSIZE,
 114     PDT_DES_PPTRANS,
 115     PDT_DES_PPWIDTH,
 116     PDT_DES_ROTMOVAX,
 117     PDT_DES_TRIM,
 118     PDT_DES_VALIDLET,
 119     PDT_DES_WORPLANE,
 120     PDT_DES_TANCEN1,
 121     PDT_DES_TANCEN2,
 122     PDT_DES_TANCEN3,
 123     PDT_DES_RADIUS1,
 124     PDT_DES_RADIUS2,
 125     PDT_DES_TPOINT,
 126     PDT_DES_EXPCOLL,
 127     PDT_DES_TANMODE,
 128 )
 129 from .pdt_command import command_run
 130 from .pdt_functions import scale_set
 131
 132
 133 # Declare enum items variables
 134 #
 135 _pdt_obj_items = []
 136 _pdt_col_items = []
 137 _pdt_mat_items = []
 138
 139
 140 class PDTPreferences(AddonPreferences):
 141     # This must match the addon name, use '__package__'
 142     # when defining this in a submodule of a python package.
 143
 144     bl_idname = __name__
 145
 146     debug: BoolProperty(
 147         name="Enable console debug output from PDT scripts",
 148         default=False,
 149         description="NOTE: Does not enable debugging globally in Blender (only in PDT scripts)",
 150     )
 151
 152     pdt_ui_width: IntProperty(
 153         name="UI Width Cut-off",
 154         default=350,
 155         description="Cutoff width for shrinking items per line in menus",
 156     )
 157
 158     pdt_input_round: IntProperty(
 159         name="Input Rounding", default=5, description="Rounding Factor for Inputs"
 160     )
 161
 162     def draw(self, context):
 163         layout = self.layout
 164
 165         box = layout.box()
 166         row1 = box.row()
 167         row2 = box.row()
 168         row1.prop(self, "debug")
 169         row2.prop(self, "pdt_ui_width")
 170         row2.prop(self, "pdt_input_round")
 171
 172
 173 def enumlist_objects(self, context):
 174     """Populate Objects List from Parts Library.
 175
 176     Creates list of objects that optionally have search string contained in them
 177     to populate variable pdt_lib_objects enumerator.
 178
 179     Args:
 180         context: Blender bpy.context instance.
 181
 182     Returns:
 183         list of Object Names.
 184     """
 185
 186     scene = context.scene
 187     pg = scene.pdt_pg
 188     file_path = pg.pdt_library_path
 189     path = Path(bpy.path.abspath(file_path))
 190     _pdt_obj_items.clear()
 191
 192     if path.is_file() and ".blend" in str(path):
 193         with bpy.data.libraries.load(str(path)) as (data_from, _):
 194             if len(pg.object_search_string) == 0:
 195                 object_names = [obj for obj in data_from.objects]
 196             else:
 197                 object_names = [obj for obj in data_from.objects if pg.object_search_string in obj]
 198         for object_name in object_names:
 199             _pdt_obj_items.append((object_name, object_name, ""))
 200     else:
 201         _pdt_obj_items.append(("MISSING", "Library Not Set", ""))
 202     return _pdt_obj_items
 203
 204
 205 def enumlist_collections(self, context):
 206     """Populate Collections List from Parts Library.
 207
 208     Creates list of collections that optionally have search string contained in them
 209     to populate variable pg.lib_collections enumerator
 210
 211     Args:
 212         context: Blender bpy.context instance.
 213
 214     Returns:
 215         list of Collections Names.
 216     """
 217
 218     scene = context.scene
 219     pg = scene.pdt_pg
 220     file_path = pg.pdt_library_path
 221     path = Path(bpy.path.abspath(file_path))
 222     _pdt_col_items.clear()
 223
 224     if path.is_file() and ".blend" in str(path):
 225         with bpy.data.libraries.load(str(path)) as (data_from, _):
 226             if len(pg.collection_search_string) == 0:
 227                 object_names = [obj for obj in data_from.collections]
 228             else:
 229                 object_names = [
 230                     obj for obj in data_from.collections if pg.collection_search_string in obj
 231                 ]
 232         for object_name in object_names:
 233             _pdt_col_items.append((object_name, object_name, ""))
 234     else:
 235         _pdt_col_items.append(("MISSING", "Library Not Set", ""))
 236     return _pdt_col_items
 237
 238
 239 def enumlist_materials(self, context):
 240     """Populate Materials List from Parts Library.
 241
 242     Creates list of materials that optionally have search string contained in them
 243     to populate variable pg.lib_materials enumerator.
 244
 245     Args:
 246         context: Blender bpy.context instance.
 247
 248     Returns:
 249         list of Object Names.
 250     """
 251
 252     scene = context.scene
 253     pg = scene.pdt_pg
 254     file_path = pg.pdt_library_path
 255     path = Path(bpy.path.abspath(file_path))
 256     _pdt_mat_items.clear()
 257
 258     if path.is_file() and ".blend" in str(path):
 259         with bpy.data.libraries.load(str(path)) as (data_from, _):
 260             if len(pg.material_search_string) == 0:
 261                 object_names = [obj for obj in data_from.materials]
 262             else:
 263                 object_names = [
 264                     obj for obj in data_from.materials if pg.material_search_string in obj
 265                 ]
 266         for object_name in object_names:
 267             _pdt_mat_items.append((object_name, object_name, ""))
 268     else:
 269         _pdt_mat_items.append(("MISSING", "Library Not Set", ""))
 270     return _pdt_mat_items
 271
 272
 273 class PDTSceneProperties(PropertyGroup):
 274     """Contains all PDT related properties."""
 275
 276     pdt_library_path: StringProperty(
 277         name="Library",
 278         default="",
 279         description="Parts Library File",
 280         maxlen=1024,
 281         subtype="FILE_PATH",
 282     )
 283
 284     object_search_string: StringProperty(name="Search", default="", description=PDT_DES_LIBSER)
 285     collection_search_string: StringProperty(name="Search", default="", description=PDT_DES_LIBSER)
 286     material_search_string: StringProperty(name="Search", default="", description=PDT_DES_LIBSER)
 287
 288     cartesian_coords: FloatVectorProperty(
 289         name="Coords", default=(0.0, 0.0, 0.0), subtype="XYZ", description=PDT_DES_COORDS
 290     )
 291     distance: FloatProperty(
 292         name="Distance", default=0.0, precision=5, description=PDT_DES_OFFDIS, unit="LENGTH"
 293     )
 294     angle: FloatProperty(
 295         name="Angle", min=-180, max=180, default=0.0, precision=5, description=PDT_DES_OFFANG
 296     )
 297     percent: FloatProperty(name="Percent", default=0.0, precision=5, description=PDT_DES_OFFPER)
 298     plane: EnumProperty(
 299         items=(
 300             ("XZ", "Front(X-Z)", "Use X-Z Plane"),
 301             ("XY", "Top(X-Y)", "Use X-Y Plane"),
 302             ("YZ", "Right(Y-Z)", "Use Y-Z Plane"),
 303             ("LO", "View", "Use View Plane"),
 304         ),
 305         name="Working Plane",
 306         default="XZ",
 307         description=PDT_DES_WORPLANE,
 308     )
 309     select: EnumProperty(
 310         items=(
 311             ("REL", "Current Pos.", "Move Relative to Current Position"),
 312             (
 313                 "SEL",
 314                 "Selected Entities",
 315                 "Move Relative to Selected Object or Vertex (Cursor & Pivot Only)",
 316             ),
 317         ),
 318         name="Move Mode",
 319         default="SEL",
 320         description=PDT_DES_MOVESEL,
 321     )
 322     operation: EnumProperty(
 323         items=(
 324             ("CU", "Move Cursor", "This function will Move the Cursor"),
 325             ("PP", "Move Pivot Point", "This function will Move the Pivot Point"),
 326             ("MV", "Move Entities", "This function will Move selected Vertices or Objects"),
 327             ("NV", "Add New Vertex", "This function will Add a New Vertex"),
 328             (
 329                 "EV",
 330                 "Extrude Vertex/Vertices",
 331                 "This function will Extrude Vertex/Vertices Only in EDIT Mode",
 332             ),
 333             ("SE", "Split Edges", "This function will Split Edges Only in EDIT Mode"),
 334             (
 335                 "DG",
 336                 "Duplicate Geometry",
 337                 "This function will Duplicate Geometry in EDIT Mode (Delta & Direction Only)",
 338             ),
 339             (
 340                 "EG",
 341                 "Extrude Geometry",
 342                 "This function will Extrude Geometry in EDIT Mode (Delta & Direction Only)",
 343             ),
 344         ),
 345         name="Operation",
 346         default="CU",
 347         description=PDT_DES_OPMODE,
 348     )
 349     taper: EnumProperty(
 350         items=(
 351             ("RX-MY", "RotX-MovY", "Rotate X - Move Y"),
 352             ("RX-MZ", "RotX-MovZ", "Rotate X - Move Z"),
 353             ("RY-MX", "RotY-MovX", "Rotate Y - Move X"),
 354             ("RY-MZ", "RotY-MovZ", "Rotate Y - Move Z"),
 355             ("RZ-MX", "RotZ-MovX", "Rotate Z - Move X"),
 356             ("RZ-MY", "RotZ-MovY", "Rotate Z - Move Y"),
 357         ),
 358         name="Axes",
 359         default="RX-MY",
 360         description=PDT_DES_ROTMOVAX,
 361     )
 362
 363     flip_angle: BoolProperty(name="Flip Angle", default=False, description=PDT_DES_FLIPANG)
 364     flip_percent: BoolProperty(name="Flip %", default=False, description=PDT_DES_FLIPPER)
 365
 366     extend: BoolProperty(name="Trim/Extend All", default=False, description=PDT_DES_TRIM)
 367
 368     lib_objects: EnumProperty(items=enumlist_objects, name="Objects", description=PDT_DES_LIBOBS)
 369     lib_collections: EnumProperty(
 370         items=enumlist_collections, name="Collections", description=PDT_DES_LIBCOLS
 371     )
 372     lib_materials: EnumProperty(
 373         items=enumlist_materials, name="Materials", description=PDT_DES_LIBMATS
 374     )
 375     lib_mode: EnumProperty(
 376         items=(
 377             ("OBJECTS", "Objects", "Use Objects"),
 378             ("COLLECTIONS", "Collections", "Use Collections"),
 379             ("MATERIALS", "Materials", "Use Materials"),
 380         ),
 381         name="Mode",
 382         default="OBJECTS",
 383         description=PDT_DES_LIBMODE,
 384     )
 385
 386     rotation_coords: FloatVectorProperty(
 387         name="Rotation", default=(0.0, 0.0, 0.0), subtype="XYZ", description="Rotation Coordinates"
 388     )
 389
 390     object_order: EnumProperty(
 391         items=(
 392             ("1,2,3,4", "1,2,3,4", "Objects 1 & 2 are First Line"),
 393             ("1,3,2,4", "1,3,2,4", "Objects 1 & 3 are First Line"),
 394             ("1,4,2,3", "1,4,2,3", "Objects 1 & 4 are First Line"),
 395         ),
 396         name="Order",
 397         default="1,2,3,4",
 398         description=PDT_DES_OBORDER,
 399     )
 400     vrotangle: FloatProperty(name="View Rotate Angle", default=10, max=180, min=-180)
 401     command: StringProperty(
 402         name="Command", default="CA0,0,0", update=command_run, description=PDT_DES_VALIDLET,
 403     )
 404     maths_output: FloatProperty(
 405         name="Maths output", default=0, description=PDT_DES_OUTPUT,
 406     )
 407     error: StringProperty(name="Error", default="")
 408
 409     # Was pivot* -- is now pivot_*
 410     pivot_loc: FloatVectorProperty(
 411         name="Pivot Location", default=(0.0, 0.0, 0.0), subtype="XYZ", description=PDT_DES_PPLOC,
 412     )
 413     pivot_scale: FloatVectorProperty(
 414         name="Pivot Scale", default=(1.0, 1.0, 1.0), subtype="XYZ", description=PDT_DES_PPSCALEFAC
 415     )
 416     pivot_size: FloatProperty(
 417         name="Pivot Factor", min=0.4, max=10, default=2, precision=1, description=PDT_DES_PPSIZE
 418     )
 419     pivot_width: IntProperty(name="Width", min=1, max=5, default=2, description=PDT_DES_PPWIDTH)
 420
 421     pivot_ang: FloatProperty(name="Pivot Angle", min=-180, max=180, default=0.0)
 422
 423     pivot_dis: FloatProperty(
 424         name="Pivot Dist", default=0.0, min=0, update=scale_set, description=PDT_DES_PIVOTDIS,
 425     )
 426     pivot_alpha: FloatProperty(
 427         name="Alpha", min=0.2, max=1, default=0.6, precision=1, description=PDT_DES_PPTRANS,
 428     )
 429     pivot_show: BoolProperty()
 430
 431     # Was filletrad
 432     fillet_radius: FloatProperty(
 433         name="Fillet Radius", min=0.0, default=1.0, description=PDT_DES_FILLETRAD
 434     )
 435     # Was filletnum
 436     fillet_segments: IntProperty(
 437         name="Fillet Segments", min=1, default=4, description=PDT_DES_FILLETSEG
 438     )
 439     # Was filletpro
 440     fillet_profile: FloatProperty(
 441         name="Fillet Profile", min=0.0, max=1.0, default=0.5, description=PDT_DES_FILLETPROF
 442     )
 443     # Was filletbool
 444     fillet_vertices_only: BoolProperty(
 445         name="Fillet Vertices Only", default=True, description=PDT_DES_FILLETVERTS,
 446     )
 447     fillet_intersect: BoolProperty(
 448         name="Intersect", default=False, description=PDT_DES_FILLINT,
 449     )
 450     tangent_point0: FloatVectorProperty(
 451         name="Coordst1", default=(0.0, 0.0, 0.0), subtype="XYZ", description=PDT_DES_TANCEN1
 452     )
 453     tangent_point1: FloatVectorProperty(
 454         name="Coordst2", default=(0.0, 0.0, 0.0), subtype="XYZ", description=PDT_DES_TANCEN2
 455     )
 456     tangent_radius0: FloatProperty(
 457         name="Arc Radius 1", min=0.00001,  default=1, description=PDT_DES_RADIUS1
 458     )
 459     tangent_radius1: FloatProperty(
 460         name="Arc Radius 2", min=0.00001, default=1, description=PDT_DES_RADIUS2
 461     )
 462     tangent_point2: FloatVectorProperty(
 463         name="Coordst3", default=(0.0, 0.0, 0.0), subtype="XYZ", description=PDT_DES_TANCEN3
 464     )
 465     menu_expand: BoolProperty(
 466         name="Expand", default=False, description=PDT_DES_EXPCOLL,
 467     )
 468     tangent_mode: EnumProperty(
 469         items=(
 470             ("inner", "Inner", "Inner Tangents"),
 471             ("outer", "Outer", "Outer Tangents"),
 472             ("both", "Inner & Outer", "Inner & Outer Tangents"),
 473             ("point", "From Point", "Tangents from Point"),
 474         ),
 475         name="Working Plane",
 476         default="both",
 477         description=PDT_DES_TANMODE,
 478     )
 479
 480     # For Trig Waves
 481     trig_type : EnumProperty(
 482         items=(
 483             ("sin", "Sine", "Sine Wave"),
 484             ("cos", "Cosine", "Cosine Wave"),
 485             ("tan", "Tangent", "Tangent Wave"),
 486         ),
 487         name="Wave Form",
 488         default="sin",
 489         description="Trig. Wave Form",
 490     )
 491     trig_cycles : IntProperty(name="Cycles #", default=1, min=1,
 492         description="1 Cycle = 180 Degrees")
 493     trig_amp : FloatProperty(name="Amplitude", default=1, min=0.01,
 494         description="Maximum Height of 1 Cycle (forms Basis for Tangents)")
 495     trig_len : FloatProperty(name="Cycle Length", default=2, min=0.02,
 496         description="Length in Blender Units of 1 Cycle")
 497     trig_obj : PointerProperty(name="Object", type=Object)
 498     trig_del : BoolProperty(name="Empty Object", default=False,
 499         description="Delete ALL Vertices in Object First")
 500     trig_res : IntProperty(name="Resolution", default=18, min=4, max=72,
 501         description="Number of Vertices per Cycle (180 Degrees)")
 502     trig_tanmax : FloatProperty(name="Tangent Max", default=10, min=0.1,
 503         description="Maximum Permitted Tangent Value")
 504     trig_off : FloatVectorProperty(name="Start Location", default=(0,0,0),
 505         description="Location in World Space for Origin of Wave")
 506     trig_abs : BoolProperty(name="Absolute", default=False,
 507         description="Use Absolute Values Only")
 508
 509
 510 # List of All Classes in the Add-on to register
 511 #
 512 # Due to the way PropertyGroups work, this needs to be listed/loaded first
 513 # (and unloaded last)
 514 #
 515 classes = (
 516     PDTPreferences,
 517     PDTSceneProperties,
 518     pdt_bix.PDT_OT_LineOnBisection,
 519     pdt_command.PDT_OT_CommandReRun,
 520     pdt_design.PDT_OT_PlacementAbs,
 521     pdt_design.PDT_OT_PlacementDelta,
 522     pdt_design.PDT_OT_PlacementDis,
 523     pdt_design.PDT_OT_PlacementCen,
 524     pdt_design.PDT_OT_PlacementPer,
 525     pdt_design.PDT_OT_PlacementNormal,
 526     pdt_design.PDT_OT_PlacementInt,
 527     pdt_design.PDT_OT_JoinVerts,
 528     pdt_design.PDT_OT_Angle2,
 529     pdt_design.PDT_OT_Angle3,
 530     pdt_design.PDT_OT_Origin,
 531     pdt_design.PDT_OT_Taper,
 532     pdt_design.PDT_OT_Fillet,
 533     pdt_etof.PDT_OT_EdgeToFace,
 534     pdt_library.PDT_OT_Append,
 535     pdt_library.PDT_OT_Link,
 536     pdt_library.PDT_OT_LibShow,
 537     pdt_menus.PDT_PT_PanelDesign,
 538     pdt_menus.PDT_PT_PanelTools,
 539     pdt_menus.PDT_PT_PanelTangent,
 540     pdt_menus.PDT_PT_PanelCommandLine,
 541     pdt_menus.PDT_PT_PanelViewControl,
 542     pdt_menus.PDT_PT_PanelPivotPoint,
 543     pdt_menus.PDT_PT_PanelPartsLibrary,
 544     pdt_menus.PDT_PT_PanelTrig,
 545     pdt_pivot_point.PDT_OT_ModalDrawOperator,
 546     pdt_pivot_point.PDT_OT_ViewPlaneRotate,
 547     pdt_pivot_point.PDT_OT_ViewPlaneScale,
 548     pdt_pivot_point.PDT_OT_PivotToCursor,
 549     pdt_pivot_point.PDT_OT_CursorToPivot,
 550     pdt_pivot_point.PDT_OT_PivotSelected,
 551     pdt_pivot_point.PDT_OT_PivotOrigin,
 552     pdt_pivot_point.PDT_OT_PivotWrite,
 553     pdt_pivot_point.PDT_OT_PivotRead,
 554     pdt_tangent.PDT_OT_TangentOperate,
 555     pdt_tangent.PDT_OT_TangentOperateSel,
 556     pdt_tangent.PDT_OT_TangentSet1,
 557     pdt_tangent.PDT_OT_TangentSet2,
 558     pdt_tangent.PDT_OT_TangentSet3,
 559     pdt_tangent.PDT_OT_TangentSet4,
 560     pdt_tangent.PDT_OT_TangentExpandMenu,
 561     pdt_trig_waves.PDT_OT_WaveGenerator,
 562     pdt_view.PDT_OT_ViewRot,
 563     pdt_view.PDT_OT_ViewRotL,
 564     pdt_view.PDT_OT_ViewRotR,
 565     pdt_view.PDT_OT_ViewRotU,
 566     pdt_view.PDT_OT_ViewRotD,
 567     pdt_view.PDT_OT_ViewRoll,
 568     pdt_view.PDT_OT_ViewIso,
 569     pdt_view.PDT_OT_Reset3DView,
 570     pdt_xall.PDT_OT_IntersectAllEdges,
 571 )
 572
 573
 574 def register():
 575     """Register Classes and Create Scene Variables.
 576
 577     Operates on the classes list defined above.
 578     """
 579
 580     from bpy.utils import register_class
 581
 582     for cls in classes:
 583         register_class(cls)
 584
 585     # OpenGL flag
 586     #
 587     window_manager = WindowManager
 588     # Register Internal OpenGL Property
 589     #
 590     window_manager.pdt_run_opengl = BoolProperty(default=False)
 591
 592     Scene.pdt_pg = PointerProperty(type=PDTSceneProperties)
 593
 594
 595 def unregister():
 596     """Unregister Classes and Delete Scene Variables.
 597
 598     Operates on the classes list defined above.
 599     """
 600
 601     from bpy.utils import unregister_class
 602
 603     # remove OpenGL data
 604     pdt_pivot_point.PDT_OT_ModalDrawOperator.handle_remove(
 605         pdt_pivot_point.PDT_OT_ModalDrawOperator, bpy.context
 606     )
 607     window_manager = bpy.context.window_manager
 608     pdt_wm = "pdt_run_opengl"
 609     if pdt_wm in window_manager:
 610         del window_manager[pdt_wm]
 611
 612     for cls in reversed(classes):
 613         unregister_class(cls)
 614
 615     del Scene.pdt_pg
 616
 617
 618 if __name__ == "__main__":
 619     register()