Re: [Gmsh] [GMSH] Surface mesh for 3D solids

2018-05-17 Thread Anderson Gabriel Santiago
Thank you for your response. But that is quite unexpected, since the normal vectors define the volume. So my question is, how can I make all the normal vectors point outward the volume? I am working with boundary element method and the normal vector orientation is really important to the method. T

Re: [Gmsh] [GMSH] Surface mesh for 3D solids

2018-05-17 Thread Christophe Geuzaine
> On 17 May 2018, at 15:07, Anderson Gabriel Santiago > wrote: > > Thank you for your response. But that is quite unexpected, since the normal > vectors define the volume. No: each surface can be connected to two volumes - the "natural" orientation with respect to the first volume will be t

Re: [Gmsh] [GMSH] Surface mesh for 3D solids

2018-05-16 Thread Christophe Geuzaine
> On 16 May 2018, at 00:28, Anderson Gabriel Santiago > wrote: > > Dear all, > > I am using GMSH to create a 3D surface mesh. For some unknown reason, some > normal vectors points inwards, not outwards, The mesh is oriented according to the orientation of the geometrical surface - everythi