Draw line between points(problem solved)

i took the point on the curve and draw the line, but I also want them to draw a line in the other direction which is the black line in the pic. Any idea how to do this?

0514unit.3dm (10.5 MB)

190514 unit stimulation.gh (10.1 KB)

How to ask effective questions
3. Attach minimal versions of all the relevant files
If you have a gh file you have a question about, attach it to the post. Do not expect that people will recreate a file based on a screen-shot because that’s a lot of pointless work. It’s also a good idea to remove everything non-essential from a gh file. You can use the Internalise Data menu option to cut everything to the left of a parameter:

Simplifying a Grasshopper network

If you are referencing curves or breps or meshes from Rhino, you can also internalise them so you won’t have to post a 3dm file as well as a gh file. If you’re unsure whether all the relevant data is internal to the gh file, try opening it in an empty Rhino. Does it work? Good. No? You’ll need to internalise more.

i am so sorry i didnt attach the file and i have already attached now. It is nice you give me the suggestion. thank you

190514 unit stimulation re bvr.gh (12.8 KB)

no need sorry dude i think this is the solution you’re searching for it. @key210709

thanks. this is exactly what i want to do. you are so nice!:slight_smile:

Here in this i had used list item as many time’s as possible. Is there any way of reducing it. And selecting the first point from line A and last point from line B