Draw Perpendicular lines on a curve on specific points

[rteuman]

Hello All,

I have a set of curves and points in Rhino. I’m not dividing the curves in GH to get the points and the spacing is different on each.

What I would like to have is to get the vector that is perpendicular to each of these curves, and draw a curve in that perpendicular direction, starting from these points.

So this is what it would look like at the end:

For the corner points, I would like to generate a bisecting curve like this:

How can I achieve this? Thank you all in advance. Here is the GH file with internalized geometry:
drawperpcurveonpoint.gh (10.1 KB)

Best,
Renan

[John_Brock]

Moved to Grasshopper category.

[kev.r (Kevin)]

Here’s one way:

drawperpcurveonpoint_221118_re.gh (12.3 KB)

-Kevin

[kev.r (Kevin)]

Noticed that previous definition didn’t work if the direction of the curve was reversed. This corrects that shortcoming.

drawperpcurveonpoint_221118_re2.gh (15.8 KB)

Different logic would be needed if lines don’t form a closed curve.

-Kevin

[rteuman]

Hi Kevin,

This is awesome, thank you so much!!!

Renan