loft() chooses "incorrect" wire? #523
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Hi, it seems like you are facing the same issue as I described in #520. Loft sometimes flips wires which you assign to it resulting in self-intersecting lofts. And the use of .union() on self-intersecting pieces produces glitches like you described. I made a workaround which you can lookup in the other thread. Just need to replace .rect() with .polyline() |
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This is not related to #520, you can make your code work like so ( import cadquery as cq
wp = cq.Workplane("XY").rect(1,2).workplane()
result = None
for i in range(0,5):
wp2 = wp.transformed(offset=cq.Vector(0, -0.5, 1.0),rotate=cq.Vector(10, 0, 0)).rect(1,2).workplane()
if result == None:
result = wp2.loft(combine=True)
else:
nextpart = wp2.loft(combine=True)
result = result.union(nextpart,clean=False)
wp = wp.transformed(offset=cq.Vector(0, -0.5, 1.0),rotate=cq.Vector(10, 0, 0)).rect(1,2).workplane() |
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@yarikoptic note that you can also use sweep to get smoothly varying sections |
adam-urbanczyk
changed the title
Merged
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I am trying to achieve something like what is described in https://stackoverflow.com/questions/61186339/how-to-iteratively-loft-wires-in-cadquery 👍
(in my case it would be not just a
.rectbut a.polylinewith different at each step shape), but for my this example renders differently than on that page, and seems incorrect -- wide side face connects to the wire of 2nd rect instead of the one before:re-installed clean using
conda create -n cq-editor2 -c cadquery -c conda-forge cq-editor=masterto the same result.versions I have installed in conda
PS if someone could share a code snippet for similar, no rotation just vertically
loft-ingup polylines -- would be VERY much appreciated, I am cadquery newbee and still fighting how to do it properlyThe text was updated successfully, but these errors were encountered: