[Bf-funboard] subdivide based on face size

[Konrad Haenel]

Tom Musgrove wrote:

> It might be nice to have a subdivide that subdivided faces based on 
> relative face size.
>
> Perhaps loop through the mesh and calculate each faces area, find the 
> average face area, and then subdivide faces that are larger than the 
> average area by a certain percentage.
>
> Perhaps something along the following lines
>
> # face_area based on code from
> # http://astronomy.swin.edu.au/~pbourke/geometry/polyarea/source1.c
>
> face_area(f):
> area = 0.0
> num_verts = len(f.verts)
> for i in range(0, num_verts):
> j = (i+1) % num_verts
> i_th_vert = f.verts[i]
> j_th_vert = f.verts[j]
> area += i_th_vert[0]*j_th_vert[1]
> area += i_th_vert[1]*j_th_vert[0]
> area *= .5
> if area < 0:
> return (-1*area)
> else
> return area
>
> face_area_dict = {}
> average_area = 0.0
> for f in faceList:
> this_area = face_area(f)
> face_area_dict[f] = this_area
> average_area+=this_area
> average_area /= len(faceList)
>
> double_average_area = 2.0*average_area
> for f in faceList:
> temp_area = face_area_dict[f]
> if temp_area >= double_average_area:
> f.subdivide()
>
> Tom M.
> LetterRip
>
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Mhm, sounds very promising.