Question

我试图书写一种在小数中选择休息的方法。在玛雅提到的定义之后,我会把帮助档案作为指导。

在玛雅,edge园具有以下特性:

The vertices that connect the edges must have a valency equal to four. Valency refers to the number of edges connected to a particular vertex.

The criteria for connecting the sequence is that the next edge in the sequence is the (i + 2nd) edge of the shared vertex, determined in order from the current edge (i).

The sequence of edges (loop) can form either an open or closed path on the polygonal mesh.

The start and end edges need not have a valency equal to four.

我的问题是,现在我不想如何打破边缘的次序。我正在寻找无uck的猎物。甚至看着Blender的消息来源试图弄清他们是如何做的,但这也使我tom。

Answer 1

我从未就如何选择玛雅语。 Go清了边缘的顺序。但是,进一步挖掘了Blender的消息来源,我发现他们使用的方法,我得以实施。

# Blender 2.58a
# editmesh_mods.c
# Line 1854
#
# selects or deselects edges that:
# - if edges has 2 faces:
#   - has vertices with valence of 4
#   - not shares face with previous edge
# - if edge has 1 face:
#   - has vertices with valence 4
#   - not shares face with previous edge
#   - but also only 1 face
# - if edge no face:
#   - has vertices with valence 2

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