| 1 | |
|---|
| 2 | from string import find, rfind |
|---|
| 3 | |
|---|
| 4 | def mesh_file_to_mesh_dictionary(fileName): |
|---|
| 5 | """Load a pmesh file. Returning the mesh dictionary. |
|---|
| 6 | """ |
|---|
| 7 | try: |
|---|
| 8 | meshdic = import_trianglulation(fileName) |
|---|
| 9 | except IOError, e: |
|---|
| 10 | msg = 'Could not open file %s ' %fileName |
|---|
| 11 | raise IOError, msg |
|---|
| 12 | return meshdic |
|---|
| 13 | |
|---|
| 14 | def import_trianglulation(ofile): |
|---|
| 15 | """ |
|---|
| 16 | reading triangulation and meshoutline info. |
|---|
| 17 | import a file, ofile, with the format |
|---|
| 18 | |
|---|
| 19 | First line: <# of vertices> <# of attributes> |
|---|
| 20 | Following lines: <vertex #> <x> <y> [attributes] |
|---|
| 21 | One line: <# of triangles> |
|---|
| 22 | Following lines: <triangle #> <vertex #> <vertex #> <vertex #> <neigbouring triangle #> <neigbouring triangle #> <neigbouring triangle #> [attribute of region] |
|---|
| 23 | One line: <# of segments> |
|---|
| 24 | Following lines: <segment #> <vertex #> <vertex #> [boundary marker] |
|---|
| 25 | Note: This might throw a can't load file error |
|---|
| 26 | """ |
|---|
| 27 | fd = open(ofile,'r') |
|---|
| 28 | dict = read_trianglulation(fd) |
|---|
| 29 | dict_mesh = read_mesh(fd) |
|---|
| 30 | for element in dict_mesh.keys(): |
|---|
| 31 | dict[element] = dict_mesh[element] |
|---|
| 32 | |
|---|
| 33 | fd.close() |
|---|
| 34 | return dict |
|---|
| 35 | |
|---|
| 36 | |
|---|
| 37 | def read_trianglulation(fd): |
|---|
| 38 | delimiter = " " |
|---|
| 39 | ######### loading the point info |
|---|
| 40 | line = fd.readline() |
|---|
| 41 | #print line |
|---|
| 42 | fragments = line.split() |
|---|
| 43 | #for fragment in fragments: |
|---|
| 44 | # print fragment |
|---|
| 45 | if fragments ==[]: |
|---|
| 46 | NumOfVertices = 0 |
|---|
| 47 | NumOfVertAttributes = 0 |
|---|
| 48 | else: |
|---|
| 49 | NumOfVertices = fragments[0] |
|---|
| 50 | NumOfVertAttributes = fragments[1] |
|---|
| 51 | points = [] |
|---|
| 52 | pointattributes = [] |
|---|
| 53 | for index in range(int(NumOfVertices)): |
|---|
| 54 | #print index |
|---|
| 55 | fragments = fd.readline().split() |
|---|
| 56 | #print fragments |
|---|
| 57 | fragments.pop(0) #pop off the index |
|---|
| 58 | |
|---|
| 59 | # pop the x y off so we're left with a list of attributes |
|---|
| 60 | vert = [float(fragments.pop(0)),float(fragments.pop(0))] |
|---|
| 61 | points.append(vert) |
|---|
| 62 | apointattributes = [] |
|---|
| 63 | #print fragments |
|---|
| 64 | for fragment in fragments: |
|---|
| 65 | apointattributes.append(float(fragment)) |
|---|
| 66 | pointattributes.append(apointattributes) |
|---|
| 67 | |
|---|
| 68 | ######### loading the point title info |
|---|
| 69 | line = fd.readline() |
|---|
| 70 | #print "point title comments",line |
|---|
| 71 | vertTitle = [] |
|---|
| 72 | for index in range(int(NumOfVertAttributes)): |
|---|
| 73 | #print index |
|---|
| 74 | fragments = fd.readline().strip() |
|---|
| 75 | vertTitle.append(fragments) |
|---|
| 76 | #print vertTitle |
|---|
| 77 | |
|---|
| 78 | ######### loading the triangle info |
|---|
| 79 | line = fd.readline() |
|---|
| 80 | #print "triangle comments",line |
|---|
| 81 | fragments = line.split() |
|---|
| 82 | #for fragment in fragments: |
|---|
| 83 | # print fragment |
|---|
| 84 | NumOfTriangles = fragments[0] |
|---|
| 85 | triangles = [] |
|---|
| 86 | triangleattributes = [] |
|---|
| 87 | triangleneighbors = [] |
|---|
| 88 | for index in range(int(NumOfTriangles)): |
|---|
| 89 | #print index |
|---|
| 90 | line = fd.readline() |
|---|
| 91 | line.strip() # so we can get the region string |
|---|
| 92 | fragments = line.split() |
|---|
| 93 | #print "triangle info", fragments |
|---|
| 94 | fragments.pop(0) #pop off the index |
|---|
| 95 | |
|---|
| 96 | tri = [int(fragments[0]),int(fragments[1]),int(fragments[2])] |
|---|
| 97 | triangles.append(tri) |
|---|
| 98 | neighbors = [int(fragments[3]),int(fragments[4]),int(fragments[5])] |
|---|
| 99 | triangleneighbors.append(neighbors) |
|---|
| 100 | for x in range(7): # remove index [<vertex #>] [<neigbouring tri #>] |
|---|
| 101 | line = line[find(line,delimiter):] # remove index |
|---|
| 102 | line = line.lstrip() |
|---|
| 103 | stringmarker = line.strip() |
|---|
| 104 | triangleattributes.append([stringmarker]) |
|---|
| 105 | |
|---|
| 106 | ######### loading the segment info |
|---|
| 107 | line = fd.readline() |
|---|
| 108 | #print "seg comment line",line |
|---|
| 109 | fragments = line.split() |
|---|
| 110 | #for fragment in fragments: |
|---|
| 111 | # print fragment |
|---|
| 112 | NumOfSegments = fragments[0] |
|---|
| 113 | segments = [] |
|---|
| 114 | segmentmarkers = [] |
|---|
| 115 | for index in range(int(NumOfSegments)): |
|---|
| 116 | #print index |
|---|
| 117 | line = fd.readline() |
|---|
| 118 | line.strip() # to get the segment string |
|---|
| 119 | fragments = line.split() |
|---|
| 120 | #print fragments |
|---|
| 121 | fragments.pop(0) #pop off the index |
|---|
| 122 | seg = [int(fragments[0]),int(fragments[1])] |
|---|
| 123 | segments.append(seg) |
|---|
| 124 | line = line[find(line,delimiter):] # remove index |
|---|
| 125 | line = line.lstrip() |
|---|
| 126 | line = line[find(line,delimiter):] # remove x |
|---|
| 127 | line = line.lstrip() |
|---|
| 128 | line = line[find(line,delimiter):] # remove y |
|---|
| 129 | stringmarker = line.strip() |
|---|
| 130 | segmentmarkers.append(stringmarker) |
|---|
| 131 | meshDict = {} |
|---|
| 132 | meshDict['generatedpointlist'] = points |
|---|
| 133 | meshDict['generatedpointattributelist'] = pointattributes |
|---|
| 134 | meshDict['generatedtrianglelist'] = triangles |
|---|
| 135 | meshDict['generatedtriangleattributelist'] = triangleattributes |
|---|
| 136 | meshDict['generatedtriangleneighborlist'] = triangleneighbors |
|---|
| 137 | meshDict['generatedsegmentlist'] = segments |
|---|
| 138 | meshDict['generatedsegmentmarkerlist'] = segmentmarkers |
|---|
| 139 | meshDict['generatedpointattributetitlelist'] = vertTitle |
|---|
| 140 | return meshDict |
|---|
| 141 | |
|---|
| 142 | def import_mesh(ofile): |
|---|
| 143 | """ |
|---|
| 144 | import a file, ofile, with the format |
|---|
| 145 | |
|---|
| 146 | First line: <# of vertices> <# of attributes> |
|---|
| 147 | Following lines: <x> <y> [attributes] |
|---|
| 148 | One line: <# of segments> |
|---|
| 149 | Following lines: <vertex #> <vertex #> [boundary marker] |
|---|
| 150 | Note: This might throw a can't load file error |
|---|
| 151 | """ |
|---|
| 152 | fd = open(ofile,'r') |
|---|
| 153 | meshDict = read_mesh(fd) |
|---|
| 154 | fd.close() |
|---|
| 155 | return meshDict |
|---|
| 156 | |
|---|
| 157 | def read_mesh(fd): |
|---|
| 158 | """ |
|---|
| 159 | Note, if a file has no mesh info, it can still be read - the meshdic |
|---|
| 160 | returned will be 'empty'. |
|---|
| 161 | """ |
|---|
| 162 | delimiter = " " # warning: split() calls are using default whitespace |
|---|
| 163 | |
|---|
| 164 | ######### loading the point info |
|---|
| 165 | line = fd.readline() |
|---|
| 166 | #print line |
|---|
| 167 | fragments = line.split() |
|---|
| 168 | #for fragment in fragments: |
|---|
| 169 | if fragments ==[]: |
|---|
| 170 | NumOfVertices = 0 |
|---|
| 171 | NumOfVertAttributes = 0 |
|---|
| 172 | else: |
|---|
| 173 | NumOfVertices = fragments[0] |
|---|
| 174 | NumOfVertAttributes = fragments[1] |
|---|
| 175 | points = [] |
|---|
| 176 | pointattributes = [] |
|---|
| 177 | for index in range(int(NumOfVertices)): |
|---|
| 178 | #print index |
|---|
| 179 | fragments = fd.readline().split() |
|---|
| 180 | #print fragments |
|---|
| 181 | fragments.pop(0) #pop off the index |
|---|
| 182 | # pop the x y off so we're left with a list of attributes |
|---|
| 183 | vert = [float(fragments.pop(0)),float(fragments.pop(0))] |
|---|
| 184 | points.append(vert) |
|---|
| 185 | apointattributes = [] |
|---|
| 186 | #print fragments |
|---|
| 187 | for fragment in fragments: |
|---|
| 188 | apointattributes.append(float(fragment)) |
|---|
| 189 | pointattributes.append(apointattributes) |
|---|
| 190 | |
|---|
| 191 | |
|---|
| 192 | ######### loading the segment info |
|---|
| 193 | line = fd.readline() |
|---|
| 194 | #print line |
|---|
| 195 | fragments = line.split() |
|---|
| 196 | #for fragment in fragments: |
|---|
| 197 | # print fragment |
|---|
| 198 | if fragments ==[]: |
|---|
| 199 | NumOfSegments = 0 |
|---|
| 200 | else: |
|---|
| 201 | NumOfSegments = fragments[0] |
|---|
| 202 | segments = [] |
|---|
| 203 | segmentmarkers = [] |
|---|
| 204 | for index in range(int(NumOfSegments)): |
|---|
| 205 | #print index |
|---|
| 206 | line = fd.readline() |
|---|
| 207 | fragments = line.split() |
|---|
| 208 | #print fragments |
|---|
| 209 | fragments.pop(0) #pop off the index |
|---|
| 210 | |
|---|
| 211 | seg = [int(fragments[0]),int(fragments[1])] |
|---|
| 212 | segments.append(seg) |
|---|
| 213 | line = line[find(line,delimiter):] # remove index |
|---|
| 214 | line = line.lstrip() |
|---|
| 215 | line = line[find(line,delimiter):] # remove x |
|---|
| 216 | line = line.lstrip() |
|---|
| 217 | line = line[find(line,delimiter):] # remove y |
|---|
| 218 | stringmarker = line.strip() |
|---|
| 219 | segmentmarkers.append(stringmarker) |
|---|
| 220 | |
|---|
| 221 | ######### loading the hole info |
|---|
| 222 | line = fd.readline() |
|---|
| 223 | #print line |
|---|
| 224 | fragments = line.split() |
|---|
| 225 | #for fragment in fragments: |
|---|
| 226 | # print fragment |
|---|
| 227 | if fragments ==[]: |
|---|
| 228 | numOfHoles = 0 |
|---|
| 229 | else: |
|---|
| 230 | numOfHoles = fragments[0] |
|---|
| 231 | holes = [] |
|---|
| 232 | for index in range(int(numOfHoles)): |
|---|
| 233 | #print index |
|---|
| 234 | fragments = fd.readline().split() |
|---|
| 235 | #print fragments |
|---|
| 236 | fragments.pop(0) #pop off the index |
|---|
| 237 | hole = [float(fragments[0]),float(fragments[1])] |
|---|
| 238 | holes.append(hole) |
|---|
| 239 | |
|---|
| 240 | |
|---|
| 241 | ######### loading the region info |
|---|
| 242 | line = fd.readline() |
|---|
| 243 | #print line |
|---|
| 244 | fragments = line.split() |
|---|
| 245 | #for fragment in fragments: |
|---|
| 246 | # print fragment |
|---|
| 247 | if fragments ==[]: |
|---|
| 248 | numOfRegions = 0 |
|---|
| 249 | else: |
|---|
| 250 | numOfRegions = fragments[0] |
|---|
| 251 | regions = [] |
|---|
| 252 | regionattributes = [] |
|---|
| 253 | for index in range(int(numOfRegions)): |
|---|
| 254 | line = fd.readline() |
|---|
| 255 | fragments = line.split() |
|---|
| 256 | #print fragments |
|---|
| 257 | fragments.pop(0) #pop off the index |
|---|
| 258 | region = [float(fragments[0]),float(fragments[1])] |
|---|
| 259 | regions.append(region) |
|---|
| 260 | |
|---|
| 261 | line = line[find(line,delimiter):] # remove index |
|---|
| 262 | line = line.lstrip() |
|---|
| 263 | line = line[find(line,delimiter):] # remove x |
|---|
| 264 | line = line.lstrip() |
|---|
| 265 | line = line[find(line,delimiter):] # remove y |
|---|
| 266 | stringmarker = line.strip() |
|---|
| 267 | regionattributes.append(stringmarker) |
|---|
| 268 | regionmaxareas = [] |
|---|
| 269 | for index in range(int(numOfRegions)): # Read in the Max area info |
|---|
| 270 | line = fd.readline() |
|---|
| 271 | fragments = line.split() |
|---|
| 272 | #print fragments |
|---|
| 273 | fragments.pop(0) #pop off the index |
|---|
| 274 | if len(fragments) == 0: #no max area |
|---|
| 275 | regionmaxareas.append(None) |
|---|
| 276 | else: |
|---|
| 277 | regionmaxareas.append(float(fragments[0])) |
|---|
| 278 | |
|---|
| 279 | |
|---|
| 280 | meshDict = {} |
|---|
| 281 | meshDict['pointlist'] = points |
|---|
| 282 | meshDict['pointattributelist'] = pointattributes |
|---|
| 283 | meshDict['segmentlist'] = segments |
|---|
| 284 | meshDict['segmentmarkerlist'] = segmentmarkers |
|---|
| 285 | meshDict['holelist'] = holes |
|---|
| 286 | meshDict['regionlist'] = regions |
|---|
| 287 | meshDict['regionattributelist'] = regionattributes |
|---|
| 288 | meshDict['regionmaxarealist'] = regionmaxareas |
|---|
| 289 | |
|---|
| 290 | return meshDict |
|---|
| 291 | |
|---|
| 292 | def clean_line(line,delimiter): |
|---|
| 293 | """Remove whitespace |
|---|
| 294 | """ |
|---|
| 295 | #print ">%s" %line |
|---|
| 296 | line = line.strip() |
|---|
| 297 | #print "stripped>%s" %line |
|---|
| 298 | numbers = line.split(delimiter) |
|---|
| 299 | i = len(numbers) - 1 |
|---|
| 300 | while i >= 0: |
|---|
| 301 | if numbers[i] == '': |
|---|
| 302 | numbers.pop(i) |
|---|
| 303 | i += -1 |
|---|
| 304 | #for num in numbers: |
|---|
| 305 | # print "num>%s<" %num |
|---|
| 306 | return numbers |
|---|
| 307 | |
|---|
| 308 | def write_ASCII_trianglulation(fd, |
|---|
| 309 | gen_dict): |
|---|
| 310 | vertices = gen_dict['generatedpointlist'] |
|---|
| 311 | vertices_attributes = gen_dict['generatedpointattributelist'] |
|---|
| 312 | try: |
|---|
| 313 | vertices_attribute_titles = gen_dict['generatedpointattributetitlelist'] |
|---|
| 314 | |
|---|
| 315 | except KeyError, e: |
|---|
| 316 | #FIXME is this the best way? |
|---|
| 317 | if vertices_attributes == [] or vertices_attributes[0] == []: |
|---|
| 318 | vertices_attribute_titles = [] |
|---|
| 319 | else: |
|---|
| 320 | raise KeyError, e |
|---|
| 321 | |
|---|
| 322 | triangles = gen_dict['generatedtrianglelist'] |
|---|
| 323 | triangles_attributes = gen_dict['generatedtriangleattributelist'] |
|---|
| 324 | triangle_neighbors = gen_dict['generatedtriangleneighborlist'] |
|---|
| 325 | |
|---|
| 326 | segments = gen_dict['generatedsegmentlist'] |
|---|
| 327 | segment_markers = gen_dict['generatedsegmentmarkerlist'] |
|---|
| 328 | |
|---|
| 329 | numVert = str(len(vertices)) |
|---|
| 330 | if (numVert == "0"): |
|---|
| 331 | numVertAttrib = "0" |
|---|
| 332 | else: |
|---|
| 333 | numVertAttrib = str(len(vertices_attributes[0])) |
|---|
| 334 | fd.write(numVert + " " + numVertAttrib + " # <vertex #> <x> <y> [attributes] ...Triangulation Vertices..." + "\n") |
|---|
| 335 | |
|---|
| 336 | #<vertex #> <x> <y> [attributes] |
|---|
| 337 | index = 0 |
|---|
| 338 | for vert in vertices: |
|---|
| 339 | attlist = "" |
|---|
| 340 | for att in vertices_attributes[index]: |
|---|
| 341 | attlist = attlist + str(att)+" " |
|---|
| 342 | attlist.strip() |
|---|
| 343 | fd.write(str(index) + " " |
|---|
| 344 | + str(vert[0]) + " " |
|---|
| 345 | + str(vert[1]) + " " |
|---|
| 346 | + attlist + "\n") |
|---|
| 347 | index += 1 |
|---|
| 348 | |
|---|
| 349 | # write comments for title |
|---|
| 350 | fd.write("# attribute column titles ...Triangulation Vertex Titles..." + "\n") |
|---|
| 351 | for title in vertices_attribute_titles: |
|---|
| 352 | fd.write(title + "\n") |
|---|
| 353 | |
|---|
| 354 | #<# of triangles> |
|---|
| 355 | n = len(triangles) |
|---|
| 356 | fd.write(str(n) + " # <triangle #> [<vertex #>] [<neigbouring triangle #>] [attribute of region] ...Triangulation Triangles..." + "\n") |
|---|
| 357 | |
|---|
| 358 | # <triangle #> <vertex #> <vertex #> <vertex #> <neigbouring triangle #> <neigbouring triangle #> <neigbouring triangle #> [attribute of region] |
|---|
| 359 | for index in range(n): |
|---|
| 360 | neighbors = "" |
|---|
| 361 | tri = triangles[index] |
|---|
| 362 | for neighbor in triangle_neighbors[index]: |
|---|
| 363 | if neighbor: |
|---|
| 364 | neighbors += str(neighbor) + " " |
|---|
| 365 | else: |
|---|
| 366 | if neighbor == 0: |
|---|
| 367 | neighbors += "0 " |
|---|
| 368 | else: |
|---|
| 369 | neighbors += "-1 " |
|---|
| 370 | if triangles_attributes[index] == ['']: |
|---|
| 371 | att = "" |
|---|
| 372 | else: |
|---|
| 373 | att = str(triangles_attributes[index]) |
|---|
| 374 | fd.write(str(index) + " " |
|---|
| 375 | + str(tri[0]) + " " |
|---|
| 376 | + str(tri[1]) + " " |
|---|
| 377 | + str(tri[2]) + " " |
|---|
| 378 | + neighbors + " " |
|---|
| 379 | + att + "\n") |
|---|
| 380 | |
|---|
| 381 | #One line: <# of segments> |
|---|
| 382 | fd.write(str(len(segments)) + |
|---|
| 383 | " # <segment #> <vertex #> <vertex #> [boundary marker] ...Triangulation Segments..." + "\n") |
|---|
| 384 | |
|---|
| 385 | #Following lines: <segment #> <vertex #> <vertex #> [boundary marker] |
|---|
| 386 | for i in range(len(segments)): |
|---|
| 387 | seg = segments[i] |
|---|
| 388 | fd.write(str(i) + " " |
|---|
| 389 | + str(seg[0]) + " " |
|---|
| 390 | + str(seg[1]) + " " |
|---|
| 391 | + str(segment_markers[i]) + "\n") |
|---|
| 392 | |
|---|
| 393 | |
|---|
| 394 | def export_trianglulation_file(ofile,gen_dict): |
|---|
| 395 | """ |
|---|
| 396 | write a file, ofile, with the format |
|---|
| 397 | |
|---|
| 398 | First line: <# of vertices> <# of attributes> |
|---|
| 399 | Following lines: <vertex #> <x> <y> [attributes] |
|---|
| 400 | One line: <# of triangles> |
|---|
| 401 | Following lines: <triangle #> <vertex #> <vertex #> <vertex #> <neigbouring triangle #> <neigbouring triangle #> <neigbouring triangle #> [attribute of region] |
|---|
| 402 | One line: <# of segments> |
|---|
| 403 | Following lines: <segment #> <vertex #> <vertex #> [boundary marker] |
|---|
| 404 | """ |
|---|
| 405 | try: |
|---|
| 406 | fd = open(ofile,'w') |
|---|
| 407 | write_ASCII_trianglulation(fd,gen_dict) |
|---|
| 408 | fd.close() |
|---|
| 409 | except IOError, e: |
|---|
| 410 | msg = 'Could not write file %s ' %fileName |
|---|
| 411 | raise IOError, msg |
|---|
| 412 | |
|---|
| 413 | ### |
|---|
| 414 | # LOADING XYA FILES |
|---|
| 415 | ### |
|---|
| 416 | |
|---|
| 417 | |
|---|
| 418 | def load_xya_file(ofile,delimiter = ','): |
|---|
| 419 | """ |
|---|
| 420 | load a file, ofile, with the format |
|---|
| 421 | x,y, [attributes] |
|---|
| 422 | """ |
|---|
| 423 | try: |
|---|
| 424 | fd = open(ofile) |
|---|
| 425 | xya_dic = read_xya_file(fd, delimiter) |
|---|
| 426 | fd.close() |
|---|
| 427 | except IOError, e: |
|---|
| 428 | msg = 'Could not open file %s ' %fileName |
|---|
| 429 | raise IOError, msg |
|---|
| 430 | return xya_dic |
|---|
| 431 | |
|---|
| 432 | def read_xya_file(fd, delimiter): |
|---|
| 433 | lines = fd.readlines() |
|---|
| 434 | points = [] |
|---|
| 435 | pointattributes = [] |
|---|
| 436 | if len(lines) <= 1: |
|---|
| 437 | raise SyntaxError |
|---|
| 438 | title = lines.pop(0) # the first (title) line |
|---|
| 439 | attLength = len(clean_line(lines[0],delimiter))-2 |
|---|
| 440 | |
|---|
| 441 | #print "initlegth" |
|---|
| 442 | #print attLength |
|---|
| 443 | for line in lines: |
|---|
| 444 | #print "line >%s" %line |
|---|
| 445 | numbers = clean_line(line,delimiter) |
|---|
| 446 | #print "numbers >%s<" %numbers |
|---|
| 447 | if len(numbers) < 2 and numbers != []: |
|---|
| 448 | raise SyntaxError |
|---|
| 449 | if numbers != []: |
|---|
| 450 | try: |
|---|
| 451 | x = float(numbers[0]) |
|---|
| 452 | y = float(numbers[1]) |
|---|
| 453 | points.append([x,y]) |
|---|
| 454 | numbers.pop(0) |
|---|
| 455 | numbers.pop(0) |
|---|
| 456 | attributes = [] |
|---|
| 457 | if attLength != len(numbers): |
|---|
| 458 | raise SyntaxError |
|---|
| 459 | |
|---|
| 460 | attLength = len(numbers) |
|---|
| 461 | |
|---|
| 462 | for num in numbers: |
|---|
| 463 | num.strip() |
|---|
| 464 | if num != '\n' and num != '': |
|---|
| 465 | attributes.append(float(num)) |
|---|
| 466 | except ValueError: |
|---|
| 467 | raise SyntaxError |
|---|
| 468 | pointattributes.append(attributes) |
|---|
| 469 | xya_dict = {} |
|---|
| 470 | xya_dict['pointlist'] = points |
|---|
| 471 | xya_dict['pointattributelist'] = pointattributes |
|---|
| 472 | xya_dict['title'] = title |
|---|
| 473 | xya_dict['segmentlist'] = [] |
|---|
| 474 | xya_dict['segmentmarkerlist'] = [] |
|---|
| 475 | xya_dict['regionlist'] = [] |
|---|
| 476 | xya_dict['regionattributelist'] = [] |
|---|
| 477 | xya_dict['regionmaxarealist'] = [] |
|---|
| 478 | xya_dict['holelist'] = [] |
|---|
| 479 | |
|---|
| 480 | return xya_dict |
|---|
| 481 | |
|---|
| 482 | |
|---|
| 483 | def export_xya_file( file_name, xya_dict, title, delimiter = ','): |
|---|
| 484 | """ |
|---|
| 485 | export a file, ofile, with the format |
|---|
| 486 | |
|---|
| 487 | First line: Title variable |
|---|
| 488 | Following lines: <vertex #> <x> <y> [attributes] |
|---|
| 489 | |
|---|
| 490 | file_name - the name of the new file |
|---|
| 491 | xya_dict - point and point attribute info in a dictionary |
|---|
| 492 | title - info to write in the first line |
|---|
| 493 | """ |
|---|
| 494 | #FIXME, move the test for this from meshharness to loadasciiharness |
|---|
| 495 | points = xya_dict['pointlist'] |
|---|
| 496 | pointattributes = xya_dict['pointattributelist'] |
|---|
| 497 | |
|---|
| 498 | fd = open(file_name,'w') |
|---|
| 499 | |
|---|
| 500 | fd.write(title+"\n") |
|---|
| 501 | #<vertex #> <x> <y> [attributes] |
|---|
| 502 | for vert, vertatts in map(None, points, pointattributes): |
|---|
| 503 | attlist = "" |
|---|
| 504 | for att in vertatts: |
|---|
| 505 | attlist = attlist + str(att)+ delimiter |
|---|
| 506 | attlist = attlist[0:-len(delimiter)] # remove the last delimiter |
|---|
| 507 | attlist.strip() |
|---|
| 508 | fd.write( str(vert[0]) + delimiter |
|---|
| 509 | + str(vert[1]) + delimiter |
|---|
| 510 | + attlist + "\n") |
|---|
| 511 | fd.close() |
|---|
| 512 | |
|---|
| 513 | if __name__ == "__main__": |
|---|
| 514 | m = import_mesh("tee.txt") |
|---|
| 515 | print m |
|---|
