interpolated curve problem

hi everyone,

i have an interpolated curve passing through a set of points arranged by a weave pattern. when i draw the same curve through same points in rhino everything is fine and i have a smooth closed curve. however in the definition the start/end tangency doesn't match. why is that so?

thanks in advance for help.

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int_crv_tangency.jpg, 502 KB

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Permalink Reply by °[u on July 10, 2009 at 6:24am

hi Caglar!

wave pattern: 0 and 6 are the same points.... that's the problem!
don't use the 6. point....
disconnect point 6 and then right mouse click on the interpolated curve "p"- Set Boolean -> True

best
[u

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Permalink Reply by Caglar on July 10, 2009 at 8:04am

thanks!
i tried the periodic curve and wasn't satisfied. i didn't think of removing the 6th input though.
but as you can see it is still not what i want to achieve. the black curve is drawn in rhino from the same set of points and same order. is there any way of getting the same one in grasshopper? otherwise when i polararray the curve, they overlap.

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int_crv_tangency2.jpg, 400 KB

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Permalink Reply by °[u on July 10, 2009 at 8:51am

hi,

i know your porblem... i think it is currently impossible with the grasshoppercomponents...
try my vb_component... i used "RhUtil.RhinoInterpCurve"
you can experiment with the knot_style (same to rhino)->
the look of the curve will change (best solution with knot_style=4)

good luck

[u

Attachments:

Rhino_intCV.ghx, 30 KB

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Permalink Reply by °[u on July 10, 2009 at 8:53am

and sorry... now you 'll need the 1. point (0) as the last point (6) ;-)

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Permalink Reply by Caglar on July 13, 2009 at 2:51am

thanks a lot, works like a charm.
how can i get only one bounding box for all those mirrored curves? now i get separate bounding boxes for each which makes it impossible to morph on a surface UV.

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