[Bf-funboard] Blender - Alt M

[Sangwoo Hong]

What Roger needs is the ability to merge points based on a threshold
distance, an ability currently missing from Blender's bag of tricks.  That
is to say, instead of all this talk of first group, second group, etc, the
same effect can be achieved by grabbing all the points involved in the merge
process and then have Blender merge points which are within certain distance
from each other.
So, if you want to merge two walls, you bring the two edges where the walls
meet close enough then tell them to merge if points are closer then say 0.1
blender unit.  If points making up the edges of one wall are separated by
more then 0.1 blender unit but some corresponding point on the other wall is
closer then 0.1 blender units then the two wall edges will be merged.

The problem with this approach is of course that the end position of the
merged points are the average of the two or more merged points and not this
or that group of points.  In the case of a wall with straight edges this is
simple enough to fix.  Just grab the newly merged points and scale it to
zero in what ever axis it needs to be.  For more complex shapes it might be
interesting to have the ability to denote which group of points get to
retain their value while others get moved.  However, this is a luxury item
I've never looked for myself.

phong.
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