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Non linear sampling with d3?

I made the exercise to use d3.piecewise, d3.range, d3.interpolateObject, etc. to sample a trajectory (x/y points in time): https://observablehq.com/@severo/trajectory-sampling-with-d3-js

But the interpolation between the points is linear. I wonder if D3.js provides the tools to do other interpolations, such as the ones d3-shape provides for curves

D3 supports basis interpolation:

There’s been discussion about other sorts of splines (monotonic in particular). We might add more.

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OK ! I will add the spline interpolation to the notebook, thanks

Done! Thanks again