Grasshopper

algorithmic modeling for Rhino

Connect the points of the boundary of point cloud

Hi guys,

I am trying to get the exact boundary line from a selection of points. I tried Hull but the connection line is missing some points. Is there a way get the line in blue in the image below? Thanks

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This approach doesn't do edges, but if you need those you can always add some boundary points well outside your grid and well below the 0-level when you create the mesh.

I also don't pull the final polylines onto the points, the vertices are slightly off, as I intersect the mesh at an elevation of 0.9999. You can add that by getting the polyline vertices and pulling them all to the original point set.

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