I'm trying to figure out how to create NURBS in Visio using data I have stored in Excel workbooks. The most confusing part of NURBS for me has been knots. I'm pretty sure I understand what they are, but I don't understand the numeric value
associated with each knot. I've tried creating freeform shapes and then editing the NURBS data in the ShapeSheets. I can see that changing the value for a knot changes the shape of the sheet, but I can't figure out the association between the value
of the knot and the shape.
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