How to identify quad elements

[austinerees]

You can forgive my ignorance because my worries might be trivial. I am able to generate a triangular mesh and visualize it from gmsh. But when I generate an all quad mesh from gmesh,I could not visualise it ourself gmesh. I was wondering if there is a work around with your program.
Thank you in advance

[austinerees]

Any help on how to visualize quad elements of a 3D model from gmsh will greatly be appreciated

[austinerees]

Any help on how to visualize quad elements of a 3D model from gmsh will greatly be appreciated

[ahojukka5]

I guess I have only implemented plotting for triangular mesh. One workaround would be to split each rectangular element to two triangular element and plot them. It would be a new feature to visualize meshes with rectangular elements. But it doesn't feel hard to impelement though.

[ahojukka5]

Can you provide the code here what you are doing and what is the expected result, I could take a look of that.

[austinerees]

Thank you so very much. I actually generated the mesh in gmsh using the blossom-quad algorithm. here is what it looks like :

. here is the .msh file $MeshFormat 4.1 0 8 $EndMeshFormat $Entities 5 8 3 0 1 0 0 1219.432 0 2 0 -3544.005 2698.779 0 3 0 3544.005 2698.779 0 4 39057.4 0 2984.981 0 5 36226.95 0 120.0104 0 1 0 0 0 0 0 0 0 2 1 -1 2 -2.911754639002567 -3544.005 1219.432 4.225286054963624 0 2698.779 0 2 1 -2 3 0 -3544.005 2698.779 0 3544.005 2698.779 0 2 2 -3 4 -2.911754639002571 0 1219.432 4.225286054963627 3544.005 2698.779 0 2 3 -1 5 0 0 2698.779 39057.4 4241.400638555574 2984.981 0 2 3 -4 6 36226.95 0 120.0103999999999 39057.4 0 2984.981 0 2 4 -5 7 0 0 29.6543628289528 36226.95 0 1219.432 0 2 5 -1 8 0 -4241.400638555574 2698.779 39057.4 0 2984.981 0 2 2 -4 1 -2.911754639002571 -3544.005 1219.432 4.225286054963627 3544.005 2698.779 0 4 1 2 3 4 2 -2.911754639004357 0 29.6543628289528 39057.4 4241.400638555574 2984.981 0 4 5 6 7 -4 3 -2.911754639004357 -4241.400638555574 29.6543628289528 39057.4 0 2984.981 0 4 -2 -7 -6 -8 $EndEntities $Nodes 16 227 1 227 0 1 0 1 1 0 0 1219.432 0 2 0 1 2 0 -3544.005 2698.779 0 3 0 1 3 0 3544.005 2698.779 0 4 0 1 4 39057.4 0 2984.981 0 5 0 1 5 36226.95 0 120.0104 1 1 0 0 1 2 0 3 6 7 8 4.225286054963624 -1031.569112783053 1286.023256154083 2.379816724784349 -2053.625843727305 1434.861236562361 -2.911754639002568 -2992.006837284101 1849.226381184197 1 3 0 3 9 10 11 0 -1772.002500000001 2698.779 0 -4.092726157978177e-12 2698.779 0 1772.002499999998 2698.779 1 4 0 3 12 13 14 -2.911754639002571 2992.006837284101 1849.226381184197 2.379816724784342 2053.625843727306 1434.861236562362 4.225286054963627 1031.569112783053 1286.023256154083 1 5 0 19 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 1987.809942880016 3704.360745129456 2699.774891674847 3977.20593090254 3843.733544693317 2700.772609548489 5967.631765361903 3967.466855821891 2701.771174612476 7959.755906575783 4059.436327489588 2702.76486254949 9953.004093581427 4123.309918469389 2703.495635703197 11946.63442150251 4174.027253135535 2703.500509646034 13940.52033563604 4213.396534714735 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222 63 190 194 64 223 190 172 192 194 224 194 192 175 193 225 64 194 193 65 226 67 66 197 196 227 66 65 193 197 228 197 193 175 195 229 196 197 195 174 230 44 198 200 45 231 198 174 195 200 232 200 195 175 199 233 45 200 199 46 234 48 47 201 180 235 47 46 199 201 236 201 199 175 192 237 180 201 192 172 238 67 196 204 68 239 196 174 202 204 240 204 202 177 203 241 68 204 203 69 242 71 70 207 206 243 70 69 203 207 244 207 203 177 205 245 206 207 205 176 246 40 208 210 41 247 208 176 205 210 248 210 205 177 209 249 41 210 209 42 250 44 43 211 198 251 43 42 209 211 252 211 209 177 202 253 198 211 202 174 254 71 206 214 72 255 206 176 212 214 256 214 212 178 213 257 72 214 213 73 258 4 74 216 34 259 74 73 213 216 260 216 213 178 215 261 34 216 215 35 262 5 36 218 37 263 36 35 215 218 264 218 215 178 217 265 37 218 217 38 266 40 39 219 208 267 39 38 217 219 268 219 217 178 212 269 208 219 212 176 270 1 55 222 6 271 55 54 220 222 272 222 220 179 221 273 6 222 221 7 274 2 8 224 56 275 8 7 221 224 276 224 221 179 223 277 56 224 223 57 278 59 58 226 187 279 58 57 223 226 280 226 223 179 225 281 187 226 225 171 282 52 185 227 53 283 185 171 225 227 284 227 225 179 220 285 53 227 220 54 $EndElements . I would like to visualize this same mesh in python as it is shown here from the gmsh graphical user interface. I have searched for many weeks and no solution. any assistance would be greatly appreciated.

[austinerees]

any help would be appreciated. I just need to visualize it like it is in python. could not find codes for quad meshes easily

[ahojukka5]

Can you provide the mesh file as attachment.