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Added section on self intersection Issue #242

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gumyr 2023-08-21 15:31:18 -04:00
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docs/tips.rst
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@ -125,3 +125,14 @@ interchange objects between the two systems by transferring the ``wrapped`` obje
... some cadquery stuff ... ... some cadquery stuff ...
b3d_solid.wrapped = cq_solid.wrapped b3d_solid.wrapped = cq_solid.wrapped
*****************
Self Intersection
*****************
Avoid creating objects that intersect themselves - even if at a single vertex - as these topoplogies
will almost certainly be invalid (even if :meth:`~topology.Shape.is_valid` reports a ``True`` value).
An example of where this my arise is with the thread of a screw (or any helical shape) where after
one complete revolution the part may contact itself. One is likely be more successful if the part
is split into multiple sections - say 180° of a helix - which are then stored in an assembly.