Hi Henri,

you could try to use [1] to generate a mesh from a cloud of points. Does it help?

r.

[1] http://docs.scipy.org/doc/scipy/reference/generated/scipy.spatial.Delaunay.h...

On 07/23/2012 02:20 PM, henri wrote:

hi every one,

I would like to use sfepy for a new project

In this project i use a mocap file ( with 52 points (x,y,z) recorded during 2 minutes)

I would like to make a mesh of this points every second and be able to get volume and the surface changes

My problem is to generated the mesh

can you give me a idea about how build my code to generate the mesh and use it in sfepy? best regards henri

On 07/23/2012 02:50 PM, henri wrote:

Hi,

It's a way to quickly build a mesh and knowing volume and surface i have done it already

but later i need to look at muscle and tissu elastic possibilities

so i would like to be able to get a mesh directly in sfepy

i don't know how to pass my mesh (from scipy delanay and convexhull tools) to sfepy.

I do not have experience with scipy delanay, but it returns a list of vertices, and the element connectivity, right? So it should be easy to build and save a sfepy mesh from it, using Mesh.from_data() in sfepy.fem.mesh, see [2].

Or, alternatively, use UserMeshIO class in the problem description file with your muscle tissue problem as follows:

### from sfepy.fem import Mesh from sfepy.fem.meshio import UserMeshIO

def mesh_hook(mesh, mode): """ Define a mesh programmatically. """ if mode == 'read': # Read your points, use Delaunay etc. mesh = Mesh.from_data(...) return mesh

 elif mode == 'write':
     pass

filename_mesh = UserMeshIO(mesh_hook) ###

r.

Le lundi 23 juillet 2012 14:41:57 UTC+2, Robert Cimrman a écrit :

...

Hi Henri,

you could try to use [1] to generate a mesh from a cloud of points. Does it help?

r.

[1] http://docs.scipy.org/doc/scipy/reference/generated/scipy.spatial.Delaunay.h...

[2] http://sfepy.org/doc-devel/src/sfepy/fem/mesh.html

...

On 07/23/2012 02:20 PM, henri wrote:

...

hi every one,

I would like to use sfepy for a new project

In this project i use a mocap file ( with 52 points (x,y,z) recorded during 2 minutes)

I would like to make a mesh of this points every second and be able to get volume and the surface changes

My problem is to generated the mesh

can you give me a idea about how build my code to generate the mesh and use it in sfepy? best regards henri