Hi, everyone. Did someone know how to compulate the derivative of a BSplineFunction[]? For instance,
Here is a NURBS CURVE with weights {1,2,3,4,5}
I have implemented a CAGDBSplineFunction[] in my package. Now I want to add the derivative functionity to CAGDBSplineFunction[].I have the formula of the derivative of a NURBS CURVE as below:
However, I don't know how to return a CAGDBSplineFunction[] via this formula.
So the result is a pure function, rather than a function object.
The built-in BSplineFunction[] for the non-rational case is rights. However, when option SplineWeights is not Automatic or unsame values, this function failed.
For instance,
pts = {{1, 1}, {2, 3}, {3, -1}, {4, 1}, {5, 0}};
g1 = BSplineFunction[pts, SplineDegree -> 3, SplineWeights -> {1, 2, 3, ...
The built-in BSplineFunction[] for the non-rational case is rights. However, when option SplineWeights is not Automatic or unsame values, this function failed.
For instance,
pts = {{1, 1}, {2, 3}, {3, -1}, {4, 1}, {5, 0}};
g1 = BSplineFunction[pts, SplineDegree -> 3, SplineWeights -> {1, 2, 3, ...
