I'm trying to access to new vertices after apply bmesh.ops.bisect_edges

API say that newly created vertices and edges will be in geom_split. I can print"geom_split" data, but I can't access to new vertices, only I can see the information in console.

here code... thanks for any help

import bpy
import bmesh
import mathutils
import math

obj = bpy.context.object
me = obj.data
bm = bmesh.from_edit_mesh(me)

edges= [e for e in bm.edges if (e.select==True and not e.hide)]

if len(edges) < 2:
    print("please select minimun 2 edges")

    newmesh = bmesh.ops.bisect_edges(bm, edges=edges, cuts=5) #for example 5 cuts

    bpy.ops.mesh.select_mode(use_extend=False, use_expand=False, type='VERT')

bmesh.update_edit_mesh(me, True)

bmesh.ops.bisect_edges returns a dictionary that only has one item geom_split, that one item is a list of the data you want. You can easily find what everything is in the python console -

>>> newmesh.keys()
>>> newmesh['geom_split'].keys()
Traceback (most recent call last):
  File "<blender_console>", line 1, in <module>
AttributeError: 'list' object has no attribute 'keys'
>>> len(newmesh['geom_split'])
>>> type(newmesh['geom_split'][0])
<class 'BMVert'>
>>> type(newmesh['geom_split'][11])
<class 'BMEdge'>

If you replace your print() with the following you can see the returned data.

for i in newmesh['geom_split']:
    if type(i) == bmesh.types.BMVert:
        print("Vertex",i.index,"positioned at",i.co)
    elif type(i) == bmesh.types.BMEdge:
        print("Edge from vert",i.verts[0].index,"to vert",i.verts[1].index)

While the api states that bisect_edges returns "newly created vertices and edges" I only see two edges returned.

| improve this answer | |
  • $\begingroup$ really thanks, this open some new windows for my developments $\endgroup$ – yhoyo Jan 27 '15 at 23:37
  • $\begingroup$ For reference I reported a bug for the return value of bisect_edges, so this function may return more edges in later versions unless they change the docs to match the way it works now. $\endgroup$ – sambler Jan 28 '15 at 0:45

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