Questions tagged [spline]
The spline tag has no usage guidance.
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How do freehand vector drawing tools typically decide where to place the control points?
I'm devising an algorithm to take a freehand curve and make a bezier spline from it. I can do this already just fine, but it's a naive implementation that creates about as many bezier curves as there ...
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Matrix form of an open uniform cubic b-spline
I'm trying to find the matrix form for the equation of a cubic b-spline. More specifically, the "middle" part, S_i(t), is pretty straightforward and available everywhere:
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Is there a canonical way to convert G1 continuity to C1 continuity for splines
I understand what C1 and G1 continuity are (e.g. this is not Continuity of parametric and geometric continuity).
But let's say I have a list of cubic splines that are, together, G1 continuous. Is ...
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Sweeping cross section along nurbs curve
I have a nurb/b-spline curve in 2d, and I want to sweep a cross section along it.
Here is the curve and resulting "tube" (green points are control points):
However, as you can see, the ...
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How to decide granularity for sampling a bezier curve for rendetion
If I want to draw a cubic bezier curve, I need to sample points on it and draw the resulting poly lines. One could sample the curve using De Casteljau algorithm and incrementing $t$ from 0 to 1 with a ...
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Rendering splines on GPU
We have an application which needs to render spline curves (cubic, bezier, b-spline etc.). We currently have working algorithms in C to stroke the control points of these curves into line strips.
The ...
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Cubic Splines - Do Parametric and Explicit representation give different curves?
I asked a similar question here before but since the previous post original question was different, I think it was confusing people. So I've voted to close that and asking the new question here. I'm ...
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