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How to set local coordinates for copy sop?

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SnoWWolF
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Hi , here is my noob question:
i have a skewed wall with slab and stair on it
extruded slab with polyextrude and made 1 tread to copy with copy sop,
see attachment , but copy inherit base object coord system, and copies other treads in a straight line, i don't want that.
How do i set local face coord system for copy sop?
Thanks!

Attachments:
copy.JPG (89.2 KB)

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SnoWWolF
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I managed to copy in required direction using calculated normals, but result is not what i expected - initial tread geometry rotates as well,
what am i doing wrong here?
please see attached .hipnc

Attachments:
copy2.JPG (77.0 KB)
COPY2.hipnc (92.7 KB)

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circusmonkey
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After looking at your model it was just easier to do the example attached > less nodes.

Rob

Attachments:
copy2_182_stairs.hipnc (106.7 KB)

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