Grasshopper

algorithmic modeling for Rhino

cloud points outline

dear all,

I am making some tests trying to define the visible portion of sky in a urban context.

I get a cloud of points in this portion of visible sky but I am wondering if there is a way to extract the outline of this cloud of points (see attached image).

Attached you can find my files.

Thank you!

Giorgio

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Permalink Reply by David Rutten on April 17, 2014 at 4:20pm

Hi Giorgio,

very difficult if all you have to go on are points. It's easier to start with a mesh and remove vertices that way. I solved the problem this way:

Note that there is a bug in the Surface.gha file that makes it not work. I've fixed the issue and you'll have to replace your Surface.gha with the one attached.

--

David Rutten

david@mcneel.com

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Permalink Reply by David Rutten on April 17, 2014 at 4:22pm

Btw you can use the [Mesh Edges] E1 output to get all exterior edges of a mesh.

--

David Rutten

david@mcneel.com

Permalink Reply by Giorgio Ponzo on April 18, 2014 at 9:25am

thank you very much David, for both the definition and the new surface component.

Giorgio

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