Nurbs Surface By Points


#1

Has anyone got this to work before?

2015-05-19_12h00_12


#2

I cant tell from your image, but I think this node expects a rectangular grid of points.


#3

“A square is a type of rectangle but a rectangle is not nesaccarily a square.” - someone

Has there been any progress on this? I have a simlar sqaure paraboloid surface as the OP with the same error: “Unable to create surface from points : POINT_ARRAY_TOO_SPARSE – There are too few rows or columns in the point array.”


#4

Hi,

This node has always work as expected for me. If you hover over the node description, you’ll note that the point input is stated as “Point[][]”. That means that the node expects a list with sub-lists of points. You’d also need to make sure that each sub-list has the same number of points:


#5

Very good information. The “Point [][]” is a very salient point. What exactly is the node doing with sublists of points? Do you know why it needs to be structured this way? I feel like I’m missing something about how dynamo wants me to give it data.


#6

I believe it wants the control points in rows or columns, flattening the points beforehand into a single list will not work.