add_mesh_extra_objects/add_mesh_teapot.py

   1 # GPL #  Author, Anthony D'Agostino
   2
   3 import bpy
   4 from bpy.props import (
   5     IntProperty,
   6     EnumProperty,
   7     )
   8 import mathutils
   9 import io
  10 import operator
  11 import functools
  12 from bpy_extras import object_utils
  13
  14
  15 class AddTeapot(bpy.types.Operator, object_utils.AddObjectHelper):
  16     bl_idname = "mesh.primitive_teapot_add"
  17     bl_label = "Add Teapot"
  18     bl_description = "Construct a teapot or teaspoon mesh"
  19     bl_options = {"REGISTER", "UNDO"}
  20
  21     resolution: IntProperty(
  22             name="Resolution",
  23             description="Resolution of the Teapot",
  24             default=5,
  25             min=2, max=15,
  26             )
  27     objecttype: EnumProperty(
  28             name="Object Type",
  29             description="Type of Bezier Object",
  30             items=(('1', "Teapot", "Construct a teapot mesh"),
  31                    ('2', "Tea Spoon", "Construct a teaspoon mesh")),
  32             default='1',
  33             )
  34
  35     def draw(self, context):
  36         layout = self.layout
  37
  38         box = layout.box()
  39         box.prop(self, 'resolution')
  40
  41         box = layout.box()
  42         box.prop(self, 'objecttype')
  43
  44         # generic transform props
  45         box = layout.box()
  46         box.prop(self, 'align', expand=True)
  47         box.prop(self, 'location', expand=True)
  48         box.prop(self, 'rotation', expand=True)
  49
  50     def execute(self, context):
  51         # turn off 'Enter Edit Mode'
  52         use_enter_edit_mode = bpy.context.preferences.edit.use_enter_edit_mode
  53         bpy.context.preferences.edit.use_enter_edit_mode = False
  54
  55         cmode = bpy.context.mode
  56         verts, faces = make_teapot(self.objecttype,
  57                                    self.resolution)
  58         # Actually create the mesh object from this geometry data.
  59         obj = create_mesh_object(self, context, verts, [], faces, "Teapot")
  60         bpy.ops.object.mode_set(mode='EDIT')
  61         bpy.ops.mesh.remove_doubles()
  62         if cmode != "EDIT_MESH":
  63             bpy.ops.object.mode_set(mode=cmode)
  64
  65         if use_enter_edit_mode:
  66             bpy.ops.object.mode_set(mode = 'EDIT')
  67
  68         # restore pre operator state
  69         bpy.context.preferences.edit.use_enter_edit_mode = use_enter_edit_mode
  70
  71         return {'FINISHED'}
  72
  73
  74 def create_mesh_face_hack(faces):
  75     # FIXME, faces with duplicate vertices shouldn't be created in the first place.
  76     faces_copy = []
  77     for f in faces:
  78         f_copy = []
  79         for i in f:
  80             if i not in f_copy:
  81                 f_copy.append(i)
  82         faces_copy.append(f_copy)
  83     faces[:] = faces_copy
  84
  85
  86 def create_mesh_object(self, context, verts, edges, faces, name):
  87
  88     create_mesh_face_hack(faces)
  89
  90     # Create new mesh
  91     mesh = bpy.data.meshes.new(name)
  92     # Make a mesh from a list of verts/edges/faces.
  93     mesh.from_pydata(verts, edges, faces)
  94     # Update mesh geometry after adding stuff.
  95     mesh.update()
  96
  97     return object_utils.object_data_add(context, mesh, operator=self)
  98
  99
 100 # ==========================
 101 # === Bezier patch Block ===
 102 # ==========================
 103
 104 def read_indexed_patch_file(filename):
 105     file = io.StringIO(filename)
 106     rawpatches = []
 107     patches = []
 108     numpatches = int(file.readline())
 109     for i in range(numpatches):
 110         line = file.readline()
 111         (a, b, c, d,
 112          e, f, g, h,
 113          i, j, k, l,
 114          m, n, o, p,
 115          ) = map(int, line.split(","))
 116         patches.append([[a, b, c, d], [e, f, g, h], [i, j, k, l], [m, n, o, p]])
 117         rawpatches.append([[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]])
 118     verts = []
 119     numverts = int(file.readline())
 120     for i in range(numverts):
 121         line = file.readline()
 122         v1, v2, v3 = map(float, line.split(","))
 123         verts.append((v1, v2, v3))
 124     for i in range(len(patches)):
 125         for j in range(4):      # len(patches[i])):
 126             for k in range(4):  # len(patches[i][j])):
 127                 index = patches[i][j][k] - 1
 128                 rawpatches[i][j][k] = verts[index]
 129     return rawpatches
 130
 131
 132 def patches_to_raw(patches, resolution):
 133     raw = []
 134     for patch in patches:
 135         verts = make_verts(patch, resolution)
 136         faces = make_faces(resolution)
 137         rawquads = indexed_to_rawquads(verts, faces)
 138         raw.append(rawquads)
 139     raw = functools.reduce(operator.add, raw)  # flatten the list
 140     return raw
 141
 142
 143 def make_bezier(ctrlpnts, resolution):
 144
 145     def b1(t):
 146         return t * t * t
 147
 148     def b2(t):
 149         return 3.0 * t * t * (1.0 - t)
 150
 151     def b3(t):
 152         return 3.0 * t * (1.0 - t) * (1.0 - t)
 153
 154     def b4(t):
 155         return (1.0 - t) * (1.0 - t) * (1.0 - t)
 156
 157     p1, p2, p3, p4 = map(mathutils.Vector, ctrlpnts)
 158
 159     def makevert(t):
 160         x, y, z = b1(t) * p1 + b2(t) * p2 + b3(t) * p3 + b4(t) * p4
 161         return (x, y, z)
 162     curveverts = [makevert(i / resolution) for i in range(resolution + 1)]
 163     return curveverts
 164
 165
 166 def make_verts(a, resolution):
 167     s = []
 168     for i in a:
 169         c = make_bezier(i, resolution)
 170         s.append(c)
 171     b = transpose(s)
 172     s = []
 173     for i in b:
 174         c = make_bezier(i, resolution)
 175         s.append(c)
 176     verts = s
 177     verts = functools.reduce(operator.add, verts)  # flatten the list
 178     return verts
 179
 180
 181 def make_faces(resolution):
 182     n = resolution + 1
 183     faces = []
 184     for i in range(resolution):
 185         for j in range(resolution):
 186             v1 = (i + 1) * n + j
 187             v2 = (i + 1) * n + j + 1
 188             v3 = i * n + j + 1
 189             v4 = i * n + j
 190             faces.append([v1, v2, v3, v4])
 191     return faces
 192
 193
 194 def indexed_to_rawquads(verts, faces):
 195     rows = len(faces)
 196     cols = len(faces[0])    # or 4
 197     rawquads = [[None] * cols for i in range(rows)]
 198     for i in range(rows):
 199         for j in range(cols):
 200             index = faces[i][j]
 201             rawquads[i][j] = verts[index]
 202     return rawquads
 203
 204
 205 def raw_to_indexed(rawfaces):
 206     # Generate verts and faces lists, without dups
 207     verts = []
 208     coords = {}
 209     index = 0
 210     for i in range(len(rawfaces)):
 211         for j in range(len(rawfaces[i])):
 212             vertex = rawfaces[i][j]
 213             if vertex not in coords:
 214                 coords[vertex] = index
 215                 index += 1
 216                 verts.append(vertex)
 217             rawfaces[i][j] = coords[vertex]
 218     return verts, rawfaces
 219
 220
 221 def transpose(rowsbycols):
 222     rows = len(rowsbycols)
 223     cols = len(rowsbycols[0])
 224     colsbyrows = [[None] * rows for i in range(cols)]
 225     for i in range(cols):
 226         for j in range(rows):
 227             colsbyrows[i][j] = rowsbycols[j][i]
 228     return colsbyrows
 229
 230
 231 def make_teapot(enumname, resolution):
 232     filenames = [None, teapot, teaspoon]
 233     try:
 234         indexes = int(enumname)
 235         filename = filenames[indexes]
 236     except:
 237         print("Add Teapot Error: EnumProperty could not be set")
 238         filename = filenames[1]
 239
 240     patches = read_indexed_patch_file(filename)
 241     raw = patches_to_raw(patches, resolution)
 242     verts, faces = raw_to_indexed(raw)
 243     return (verts, faces)
 244
 245
 246 # =================================
 247 # === Indexed Bezier Data Block ===
 248 # =================================
 249 teapot = """32
 250 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
 251 4,17,18,19,8,20,21,22,12,23,24,25,16,26,27,28
 252 19,29,30,31,22,32,33,34,25,35,36,37,28,38,39,40
 253 31,41,42,1,34,43,44,5,37,45,46,9,40,47,48,13
 254 13,14,15,16,49,50,51,52,53,54,55,56,57,58,59,60
 255 16,26,27,28,52,61,62,63,56,64,65,66,60,67,68,69
 256 28,38,39,40,63,70,71,72,66,73,74,75,69,76,77,78
 257 40,47,48,13,72,79,80,49,75,81,82,53,78,83,84,57
 258 57,58,59,60,85,86,87,88,89,90,91,92,93,94,95,96
 259 60,67,68,69,88,97,98,99,92,100,101,102,96,103,104,105
 260 69,76,77,78,99,106,107,108,102,109,110,111,105,112,113,114
 261 78,83,84,57,108,115,116,85,111,117,118,89,114,119,120,93
 262 121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136
 263 124,137,138,121,128,139,140,125,132,141,142,129,136,143,144,133
 264 133,134,135,136,145,146,147,148,149,150,151,152,69,153,154,155
 265 136,143,144,133,148,156,157,145,152,158,159,149,155,160,161,69
 266 162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177
 267 165,178,179,162,169,180,181,166,173,182,183,170,177,184,185,174
 268 174,175,176,177,186,187,188,189,190,191,192,193,194,195,196,197
 269 177,184,185,174,189,198,199,186,193,200,201,190,197,202,203,194
 270 204,204,204,204,207,208,209,210,211,211,211,211,212,213,214,215
 271 204,204,204,204,210,217,218,219,211,211,211,211,215,220,221,222
 272 204,204,204,204,219,224,225,226,211,211,211,211,222,227,228,229
 273 204,204,204,204,226,230,231,207,211,211,211,211,229,232,233,212
 274 212,213,214,215,234,235,236,237,238,239,240,241,242,243,244,245
 275 215,220,221,222,237,246,247,248,241,249,250,251,245,252,253,254
 276 222,227,228,229,248,255,256,257,251,258,259,260,254,261,262,263
 277 229,232,233,212,257,264,265,234,260,266,267,238,263,268,269,242
 278 270,270,270,270,279,280,281,282,275,276,277,278,271,272,273,274
 279 270,270,270,270,282,289,290,291,278,286,287,288,274,283,284,285
 280 270,270,270,270,291,298,299,300,288,295,296,297,285,292,293,294
 281 270,270,270,270,300,305,306,279,297,303,304,275,294,301,302,271
 282 306
 283 1.4,0.0,2.4
 284 1.4,-0.784,2.4
 285 0.784,-1.4,2.4
 286 0.0,-1.4,2.4
 287 1.3375,0.0,2.53125
 288 1.3375,-0.749,2.53125
 289 0.749,-1.3375,2.53125
 290 0.0,-1.3375,2.53125
 291 1.4375,0.0,2.53125
 292 1.4375,-0.805,2.53125
 293 0.805,-1.4375,2.53125
 294 0.0,-1.4375,2.53125
 295 1.5,0.0,2.4
 296 1.5,-0.84,2.4
 297 0.84,-1.5,2.4
 298 0.0,-1.5,2.4
 299 -0.784,-1.4,2.4
 300 -1.4,-0.784,2.4
 301 -1.4,0.0,2.4
 302 -0.749,-1.3375,2.53125
 303 -1.3375,-0.749,2.53125
 304 -1.3375,0.0,2.53125
 305 -0.805,-1.4375,2.53125
 306 -1.4375,-0.805,2.53125
 307 -1.4375,0.0,2.53125
 308 -0.84,-1.5,2.4
 309 -1.5,-0.84,2.4
 310 -1.5,0.0,2.4
 311 -1.4,0.784,2.4
 312 -0.784,1.4,2.4
 313 0.0,1.4,2.4
 314 -1.3375,0.749,2.53125
 315 -0.749,1.3375,2.53125
 316 0.0,1.3375,2.53125
 317 -1.4375,0.805,2.53125
 318 -0.805,1.4375,2.53125
 319 0.0,1.4375,2.53125
 320 -1.5,0.84,2.4
 321 -0.84,1.5,2.4
 322 0.0,1.5,2.4
 323 0.784,1.4,2.4
 324 1.4,0.784,2.4
 325 0.749,1.3375,2.53125
 326 1.3375,0.749,2.53125
 327 0.805,1.4375,2.53125
 328 1.4375,0.805,2.53125
 329 0.84,1.5,2.4
 330 1.5,0.84,2.4
 331 1.75,0.0,1.875
 332 1.75,-0.98,1.875
 333 0.98,-1.75,1.875
 334 0.0,-1.75,1.875
 335 2.0,0.0,1.35
 336 2.0,-1.12,1.35
 337 1.12,-2.0,1.35
 338 0.0,-2.0,1.35
 339 2.0,0.0,0.9
 340 2.0,-1.12,0.9
 341 1.12,-2.0,0.9
 342 0.0,-2.0,0.9
 343 -0.98,-1.75,1.875
 344 -1.75,-0.98,1.875
 345 -1.75,0.0,1.875
 346 -1.12,-2.0,1.35
 347 -2.0,-1.12,1.35
 348 -2.0,0.0,1.35
 349 -1.12,-2.0,0.9
 350 -2.0,-1.12,0.9
 351 -2.0,0.0,0.9
 352 -1.75,0.98,1.875
 353 -0.98,1.75,1.875
 354 0.0,1.75,1.875
 355 -2.0,1.12,1.35
 356 -1.12,2.0,1.35
 357 0.0,2.0,1.35
 358 -2.0,1.12,0.9
 359 -1.12,2.0,0.9
 360 0.0,2.0,0.9
 361 0.98,1.75,1.875
 362 1.75,0.98,1.875
 363 1.12,2.0,1.35
 364 2.0,1.12,1.35
 365 1.12,2.0,0.9
 366 2.0,1.12,0.9
 367 2.0,0.0,0.45
 368 2.0,-1.12,0.45
 369 1.12,-2.0,0.45
 370 0.0,-2.0,0.45
 371 1.5,0.0,0.225
 372 1.5,-0.84,0.225
 373 0.84,-1.5,0.225
 374 0.0,-1.5,0.225
 375 1.5,0.0,0.15
 376 1.5,-0.84,0.15
 377 0.84,-1.5,0.15
 378 0.0,-1.5,0.15
 379 -1.12,-2.0,0.45
 380 -2.0,-1.12,0.45
 381 -2.0,0.0,0.45
 382 -0.84,-1.5,0.225
 383 -1.5,-0.84,0.225
 384 -1.5,0.0,0.225
 385 -0.84,-1.5,0.15
 386 -1.5,-0.84,0.15
 387 -1.5,0.0,0.15
 388 -2.0,1.12,0.45
 389 -1.12,2.0,0.45
 390 0.0,2.0,0.45
 391 -1.5,0.84,0.225
 392 -0.84,1.5,0.225
 393 0.0,1.5,0.225
 394 -1.5,0.84,0.15
 395 -0.84,1.5,0.15
 396 0.0,1.5,0.15
 397 1.12,2.0,0.45
 398 2.0,1.12,0.45
 399 0.84,1.5,0.225
 400 1.5,0.84,0.225
 401 0.84,1.5,0.15
 402 1.5,0.84,0.15
 403 -1.6,0.0,2.025
 404 -1.6,-0.3,2.025
 405 -1.5,-0.3,2.25
 406 -1.5,0.0,2.25
 407 -2.3,0.0,2.025
 408 -2.3,-0.3,2.025
 409 -2.5,-0.3,2.25
 410 -2.5,0.0,2.25
 411 -2.7,0.0,2.025
 412 -2.7,-0.3,2.025
 413 -3.0,-0.3,2.25
 414 -3.0,0.0,2.25
 415 -2.7,0.0,1.8
 416 -2.7,-0.3,1.8
 417 -3.0,-0.3,1.8
 418 -3.0,0.0,1.8
 419 -1.5,0.3,2.25
 420 -1.6,0.3,2.025
 421 -2.5,0.3,2.25
 422 -2.3,0.3,2.025
 423 -3.0,0.3,2.25
 424 -2.7,0.3,2.025
 425 -3.0,0.3,1.8
 426 -2.7,0.3,1.8
 427 -2.7,0.0,1.575
 428 -2.7,-0.3,1.575
 429 -3.0,-0.3,1.35
 430 -3.0,0.0,1.35
 431 -2.5,0.0,1.125
 432 -2.5,-0.3,1.125
 433 -2.65,-0.3,0.9375
 434 -2.65,0.0,0.9375
 435 -2.0,-0.3,0.9
 436 -1.9,-0.3,0.6
 437 -1.9,0.0,0.6
 438 -3.0,0.3,1.35
 439 -2.7,0.3,1.575
 440 -2.65,0.3,0.9375
 441 -2.5,0.3,1.125
 442 -1.9,0.3,0.6
 443 -2.0,0.3,0.9
 444 1.7,0.0,1.425
 445 1.7,-0.66,1.425
 446 1.7,-0.66,0.6
 447 1.7,0.0,0.6
 448 2.6,0.0,1.425
 449 2.6,-0.66,1.425
 450 3.1,-0.66,0.825
 451 3.1,0.0,0.825
 452 2.3,0.0,2.1
 453 2.3,-0.25,2.1
 454 2.4,-0.25,2.025
 455 2.4,0.0,2.025
 456 2.7,0.0,2.4
 457 2.7,-0.25,2.4
 458 3.3,-0.25,2.4
 459 3.3,0.0,2.4
 460 1.7,0.66,0.6
 461 1.7,0.66,1.425
 462 3.1,0.66,0.825
 463 2.6,0.66,1.425
 464 2.4,0.25,2.025
 465 2.3,0.25,2.1
 466 3.3,0.25,2.4
 467 2.7,0.25,2.4
 468 2.8,0.0,2.475
 469 2.8,-0.25,2.475
 470 3.525,-0.25,2.49375
 471 3.525,0.0,2.49375
 472 2.9,0.0,2.475
 473 2.9,-0.15,2.475
 474 3.45,-0.15,2.5125
 475 3.45,0.0,2.5125
 476 2.8,0.0,2.4
 477 2.8,-0.15,2.4
 478 3.2,-0.15,2.4
 479 3.2,0.0,2.4
 480 3.525,0.25,2.49375
 481 2.8,0.25,2.475
 482 3.45,0.15,2.5125
 483 2.9,0.15,2.475
 484 3.2,0.15,2.4
 485 2.8,0.15,2.4
 486 0.0,0.0,3.15
 487 0.0,-0.002,3.15
 488 0.002,0.0,3.15
 489 0.8,0.0,3.15
 490 0.8,-0.45,3.15
 491 0.45,-0.8,3.15
 492 0.0,-0.8,3.15
 493 0.0,0.0,2.85
 494 0.2,0.0,2.7
 495 0.2,-0.112,2.7
 496 0.112,-0.2,2.7
 497 0.0,-0.2,2.7
 498 -0.002,0.0,3.15
 499 -0.45,-0.8,3.15
 500 -0.8,-0.45,3.15
 501 -0.8,0.0,3.15
 502 -0.112,-0.2,2.7
 503 -0.2,-0.112,2.7
 504 -0.2,0.0,2.7
 505 0.0,0.002,3.15
 506 -0.8,0.45,3.15
 507 -0.45,0.8,3.15
 508 0.0,0.8,3.15
 509 -0.2,0.112,2.7
 510 -0.112,0.2,2.7
 511 0.0,0.2,2.7
 512 0.45,0.8,3.15
 513 0.8,0.45,3.15
 514 0.112,0.2,2.7
 515 0.2,0.112,2.7
 516 0.4,0.0,2.55
 517 0.4,-0.224,2.55
 518 0.224,-0.4,2.55
 519 0.0,-0.4,2.55
 520 1.3,0.0,2.55
 521 1.3,-0.728,2.55
 522 0.728,-1.3,2.55
 523 0.0,-1.3,2.55
 524 1.3,0.0,2.4
 525 1.3,-0.728,2.4
 526 0.728,-1.3,2.4
 527 0.0,-1.3,2.4
 528 -0.224,-0.4,2.55
 529 -0.4,-0.224,2.55
 530 -0.4,0.0,2.55
 531 -0.728,-1.3,2.55
 532 -1.3,-0.728,2.55
 533 -1.3,0.0,2.55
 534 -0.728,-1.3,2.4
 535 -1.3,-0.728,2.4
 536 -1.3,0.0,2.4
 537 -0.4,0.224,2.55
 538 -0.224,0.4,2.55
 539 0.0,0.4,2.55
 540 -1.3,0.728,2.55
 541 -0.728,1.3,2.55
 542 0.0,1.3,2.55
 543 -1.3,0.728,2.4
 544 -0.728,1.3,2.4
 545 0.0,1.3,2.4
 546 0.224,0.4,2.55
 547 0.4,0.224,2.55
 548 0.728,1.3,2.55
 549 1.3,0.728,2.55
 550 0.728,1.3,2.4
 551 1.3,0.728,2.4
 552 0.0,0.0,0.0
 553 1.5,0.0,0.15
 554 1.5,0.84,0.15
 555 0.84,1.5,0.15
 556 0.0,1.5,0.15
 557 1.5,0.0,0.075
 558 1.5,0.84,0.075
 559 0.84,1.5,0.075
 560 0.0,1.5,0.075
 561 1.425,0.0,0.0
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 590
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