Hello. I'm trying to parse a mesh.msh generated by gmsh. I work with 9-quad elements. I see in documentation that inside of the elements, nodes are ordered like this :
v ^ | 3-------6-------2 | | | | | | 7 8-------5 --> u | | | | 0-------4-------1 I made a 2D mesh (all surfaces normals are oriented in the same direction) When i look at my 2D mesh (in plan XY) the element 265 : 265 2 44 1047 533 49 1102 1103 544 1104 is oriented like this related to the golbal X and Y axis ie, when looking at the screen i see: 44-------49-------2 | | | Y | | | ^ 1102 1104 544 | | | | | | | | | 1047--1103----533 x------> X it seems that u anv v vectors are oriented like this : 1-----4-----0 | | | | | | u <---5-----8 7 | | | | | | 2-----6-----3 | V v How are V and U vectors defined for each element ? Is there a way to orient them along the natural X and Y axis ? Thanks _______________________________________________ gmsh mailing list gmsh@onelab.info http://onelab.info/mailman/listinfo/gmsh