[Bf-python] Most efficient way to copy faces

[joe]

You put the faces into one big list, then you feed that to
mesh.faces.extend().  Not sure how you handle UVs and the like though,
it's kindof a pain, I think.

Joe

On Sun, May 24, 2009 at 12:41 PM,  <lynx.abraxas at freenet.de> wrote:
> Hello,
>
>
>
> Next question: What is the most efficient way to copy faces from another mesh?
> I have now the verts that lie within an ellipsoid and now I'd like to copy the
> faces that belong to these verts. I'm doing it currently like this:
>
>
>
> if len(vin.verts) > 2: # we need at least one face => three verts minimum
>      #find inside faces in potato to copy
>      for i in range(0, len(potmesh.faces)): #check all potato faces
>         nvi= 0
>         f= []
>         for j in range(0, len(potmesh.faces[i].verts)): #if all verts of a face
>            for k in vin.verts: #are in the list of the inside verts
>               if k.co == potmesh.faces[i].verts[j].co:
>               #if k in potmesh.faces[i].verts:#this does not work! why?
>                  nvi+= 1
>                  f.append(k)#create face with vin.verts indices!
>         if nvi == len(potmesh.faces[i].verts): #if all verts of a potato face are in the inside verts list
>            vin.faces.extend(f) #add it to the list of insede faces
>         elif nvi > len(potmesh.faces[i].verts):
>            print "Potato mesh contains double verts!"
>            #vin.faces.extend(f) #only possible for 2 to 4 verts!
>         #else:
>         #   print "Face not completly inside ellipsoid."
>
>
> This  is  taking  a  long time for my big "potato" (3 million verts, 1 million
> faces). Is there a better way to do this?
>
> Many thanks for any help or hints
> Lynx
>
>
> _______________________________________________
> Bf-python mailing list
> Bf-python at blender.org
> http://lists.blender.org/mailman/listinfo/bf-python
>