lathe_utils.py

import mathutils
from mathutils import Vector
import bmesh

import sv_bmesh_utils
from sv_bmesh_utils import bmesh_from_pydata

def sv_main(verts=[[]], edges=[[]], origins=[[]], normals=[[]], radians=1.0, segments=20): 

    in_sockets = [
        ['v', 'verts', verts],
        ['s', 'edges', edges],
        ['v', 'origins', origins],
        ['v', 'normals', normals],
        ['s', 'radians', radians],
        ['s', 'segments', segments]] 



    out_sockets = [ 
        ['v', 'Vecs', []], 
        ['s', 'Polys', []]
    ]

    if not verts or not verts[0]:
        return in_sockets, out_sockets
    

    # defend against div by zero
    segments = max(segments, 1)
    
    print(origins, normals)

    cent = Vector((0,0,0))
    axis = Vector((0,0,1))
    dvec = Vector((0,0,0))
    angle = radians
    space = mathutils.Matrix()
    steps = segments
    use_duplicate = False
    
    bm = bmesh_from_pydata(verts[0], edges[0], [])
    geom = bm.verts[:] + bm.edges[:]
    
    bmesh.ops.spin(bm, 
        geom=geom, cent=cent, axis=axis,
        dvec=dvec, angle=radians,
        space=space,
        steps=segments,
        use_duplicate=use_duplicate)
    
    v = [v.co[:] for v in bm.verts]
    p = [[i.index for i in p.verts] for p in bm.faces[:]]

    bm.free()

 
    out_sockets[0][2] = v
    out_sockets[1][2] = p

    return in_sockets, out_sockets