evaluate curve in the closest point to a plane

Replies to This Discussion

Permalink Reply by Mostapha Sadeghipour Roudsari on December 10, 2013 at 12:07pm

I would find the bounding box of the curve and use it to find what you are looking for. The minimum z of the boundingBox will be the minimum z of the curve.

Permalink Reply by David Rutten on December 11, 2013 at 2:22am

There's a curve extremes component. In code you can take two approaches (one hack, one slow):

• Create a point really, really far away below the curve, then find the closest point on the curve.
• Project the curve onto the plane, and then use Curve.GetDistancesBetweenCurves on these two.

--

David Rutten

david@mcneel.com

Permalink Reply by David Rutten on December 11, 2013 at 4:27am

I thought you wanted to know which point on the curve is the lowest?

If you only want to find out the lowest z value of a curve, then getting the boundingbox is the ideal solution.

--

David Rutten

david@mcneel.com

Permalink Reply by Mostapha Sadeghipour Roudsari on December 11, 2013 at 1:23pm

Isn't easier if you just intersect the plane with the curve?

Permalink Reply by pablo on December 11, 2013 at 2:34pm

That was perfect!

Sorry guys because I didn't make clear if I wanted the lowest Z value or the lowest point. I wanted the lowest point.

Thank you all

Permalink Reply by pablo on December 11, 2013 at 3:09pm

yes

Permalink Reply by Mostapha Sadeghipour Roudsari on December 11, 2013 at 3:31pm

Hi Marcus,

I used Export Quick Image from Grasshopper.

File > Export Quick Image (Ctrl + Shift + Q)

Then click on Viewport Frame (the middle icon on the up-right corner).

Permalink Reply by dimitris koletsios on December 11, 2013 at 12:41pm

maybe this?

Attachments:

• zmin.png, 271 KB