Questions on the spline-related functions of Mathematica (BezierCurve[], BSplineCurve[], etc.).
3
votes
3answers
74 views
Inverting a Spline-Function (Bezier or BSpline)
I would like to use a Spline-Function to describe a transformation from one range of reals to another, that is I would like to have a function which maps a value $y$ on $x$ and for simplicity let us ...
2
votes
2answers
82 views
Evaluating Polynomials at Grid Points
I am continuing my quest on B-splines. The code below builds a 5x5 matrix out of B-splines, using the BSplineBasis[] routine.
I now want to evaluate the polynomials that are stored in each matrix ...
1
vote
0answers
63 views
Plotting derivatives of B-splines
I am trying to solve an electrodynamics problem numerically by using B-splines a basis function. Please don't ask me why, but if you really wanna know, here is the assignment.
Using the following ...
2
votes
0answers
148 views
How to make 3D object smooth?
This thread considers mathematical methods here to make the 3D object smooth but this question consider how to achieve the goal of smoothing a 3D object in Mathematica.
I want to get smoother ...
4
votes
0answers
141 views
Cubic polynomial interpolation with velocities listed rather than some points
I am trying to use the function BSplineFunction[] to create a natural cubic spline. Normally what is done is that you specify "SplineDegree -> 3" and include a list of points and it will carry out ...
2
votes
3answers
174 views
3
votes
2answers
114 views
Convert BSplineFunction into two Interpolating Functions
Is there a way to decompose a BSplineFunction output into two functions x[t], y[t] ...
2
votes
3answers
97 views
How can I find the points of B Spline functions for a specific range?
Based on this question:
I have a list of bspline functions (nearly 1000) provided by applying BSplineFunction to a list of points. I want to get the points each of ...
1
vote
2answers
266 views
Derivative of a spline approximation
To approximate an experimental data function $f(t)$ with $t \in (t_{min},t_{max})$ I used a cubic spline $s(p)=(t(p),f(p))$ with the parameter $p \in (0,1)$ and $p = t/(t_{max}-t_{min})$ by using the ...
5
votes
1answer
173 views
17
votes
2answers
504 views
Joining and interpolating data points
I wonder what is the best practice for interpolating curves? Usually I'm using BSplineCurve and adjusting SplineWeights so it ...
10
votes
1answer
735 views
Fitting a spline to data with FindFit?
I am trying to find a function that fits my almost linear data. A high order polynomial model has too much residual. So I was hoping to use Mathematica to fit splines to the curve.
This is what I ...
9
votes
1answer
179 views
