Hello All.
A bit new to Rhino… I’m trying to split curves in what seems to be a super simple method to me. But they will not split. See attached video. What am I doing wrong?
Thanks!
your curves need to intersect not only in a projected view (top) - but also geometrically in 3d.
_projectToCPlane (delete input = no) the cutter
so everything is on a plane.
the _trim command has the behaviour you re after.
(apparent intersections)
but you will lose half of the curves.
_split is missing this option
post a file if you have more problems / questions.
(just drag and drop it to the edit-window)
best - tom
1 Like
Thanks Tom.
I’ve got another question about trimming with a curve. Where I’m having some issues. I cannot seem to trim. See attached. Any thoughts on this? I apologize for the loud thumping on keys on my keyboard.
there should be a proper intersection / curve on surface for trim to work.
In your case - my guess from the video: the coincident-Point line/curve and Surface / Surface will also be tangential. - therefore intersecting the surfaces - your video around 0:45 does not result in a proper curve.
in general if trim does not work:
surface surface - do an _intersect
curve - surface - top view - do a _project
in both case you will see the resulting curve, that should be able to trim the surface.
If there does not touch edges at both ends, trim will fail.
you can modify the intersection / projected curve.
_extendCrvOnSrf is a fast but approach.
other approaches are more accurate.
moving CVs
redrawing the curve from another view (left ?)
using createUV crvs / curve adaption / applyCrvs
hope this also helps kind regards - tom
1 Like
OK. I think I get it.
Thanks!