EvaluateUvDirections
Grasshopper2.Extensions.GeometryExtensionMethods
Examples
using Grasshopper2.Extensions;
// As an extension method
surface.EvaluateUvDirections(uv, out Vector3d u, out Vector3d v);
// As a static method
GeometryExtensionMethods.EvaluateUvDirections(surface, uv, out u, out v);