imported circle problem

Replies to This Discussion

Permalink Reply by alex jenter on April 6, 2013 at 9:28am

Hi Paul,

As far as i know circles are always closed planar curves, and even better they are never exactly circles because they are made up of bezier splines wich can only approximate a circle.

http://en.wikipedia.org/wiki/B%C3%A9zier_spline (goto bottom of page)

if you cant export the radii as a list of numbers, try finding the diameter in GH via the extremes component. The distance between the most left  and the most right point on your circle divided by two should be the exact radius, if the circles where not rotated.

Best Alex

Permalink Reply by alex jenter on April 6, 2013 at 9:52am

even better: divide the curve length by (2 * PI)

Attachments:

• circle.gh, 4 KB

Permalink Reply by Paul H. on April 6, 2013 at 12:29pm

Hi Alex,

This definition works great x/(2 xPI) is very effective!

Only the circle button after the Curve is generating an error most likely because the curves are imported when drawn directly in rhino it is fine.

thanks again!

Permalink Reply by Paul H. on April 6, 2013 at 9:56am

Hi Alex,

Thanks for the info, I am going to try your suggestion!

Paul