Meshing export nodes/faces for diodore

Rhino Rhino for Windows
1

Hi,

I would like to use Rhino for creating mesh files of simple shape floating bodies (cylinder, box,etc…) in order to use them with a french potential hydrodynamic software DIODORE (equiv to WAMIT)

I’m looking for the exportation of :
the mesh nodes coordinates with an associated number.
the nodes group creating the mesh faces with an associated number for the face

eg for a 4- quadratic panel
NODES
N° x y z
1 0 0 0
2 1 0 0
3 1 1 0
4 0 1 0
5 -1 1 0
6 -1 0 0
7 -1 -1 0
8 0 -1 0
9 1 -1 0

FACES
1 1 2 3 4
2 1 4 5 6
3 1 6 7 8
4 1 8 9 2

I tried all the export format possibilities but i do not achieve to find one which would give me the two types of information.

Any ideas ?

Best Regards.
C.

2

This can easily be done with python scripting. If you upload an example of a mesh input to diodore, I can write a script for you.

Pål

3

Hi Pal,

Thank you for your answer.

Mesh INPUT for DIODORE are written in the following way :

  • text file : NAME.dat
    first line $NODES
    then for each node N° x y z
    then *RETURN
    then for each quadratic face N° node1 number node2 number node3 number node4 number
    then *RETURN
    then for each triangular face N° node1 number node2 number node3 number
    end line *RETURN

Best regards,
C.

EXAMPLE.zip (258 Bytes)

4

Hi,

You can generate this meshfile using the attached python script in Rhino.

exportDIODORE.py (972 Bytes)

Regards Pål

5

Hi Pal,

Thank you for the scrypt !
I will test it and go back to you.

BR,
C.

6

Hi again,

It’s working perfectly.
thank you very much Pal.

BR,
C.

7

Glad to hear, enjoy!