Isolating unobstructed objects from a point

I am trying to isolate any unobstructed surfaces within a certain distance from a given point. This is to represent a 500m visible radius from a standing viewpoint.

In cases where the surface is partially unobstructed, I would like to split these from the original surface at the points where they become obstructed, or rebuild only the unobstructed portion of them.

So far I have gotten to the point of getting unobstructed points on the obstacle surfaces, but am not sure how to separate them into lists per obstacle.

I am fairly new to grasshopper so I apologise for lack of technical term! Any help is greatly appreciated.

Attachments:

500m visible radius 1.gh, 33 KB
500m visible radius.3dm, 275 KB

Replies to This Discussion

Permalink Reply by Joseph Oster on July 8, 2016 at 6:36am

Clearly, many things are possible and there are many different ways. If you want to learn Grasshopper, you have to figure some things out for yourself. Have fun.

Permalink Reply by ng5 Alex on July 8, 2016 at 6:52am

Federico,

coloring according to distance or angle, is pretty much, introduction to grasshopper material. Any beginners tutorial, plenty online, will get you there. It is rewarding doing it yourself.

Have fun.