Grasshopper

algorithmic modeling for Rhino

Could I be hallucinating or is rhutil.RhinoCreateSurfaceFromCorners screwing with the order of the point list that I'm using as it's input?
I turn it off and the points are in order.  Turn it on and the points are in random order....
Draw a polyline with the points instead of using SurfaceFromCorners and the points are in order again.
Very disturbed that the list could get shuffled like that.
Something deeper that I'm missing?  Anyone else run into this?

thanks
daniel

Views: 361

Replies to This Discussion

Daniel,

RhinoCreateSurfaceFromCorners is basically worthless. It will indeed re-order the points to give, what the function thinks, is the wanted surface. The tacit assumption here is that the points are picked by the user in no particular order.

What you should do (and what I do in Grasshopper), is to make two LineCurves, connecting points A-B and D-C respectively, then create a Ruled surface between them.

--
David Rutten
david@mcneel.com
Poprad, Slovakia
Thanks.
Done. RhinoCreateSurfaceFromCorners added to my blacklist.
Any others? MakeSquishy()? I don't know what it does but I don't like the sound of it.

daniel
:)

RhinoFairCurve is appearently implemented rather awkwardly. Unless you know exactly how fairing works, you'll probably shoot yourself in the foot with this one.

RhinoShortPath tends to work very badly when one (or both) of the end-points are on the edge of the surface.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

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