## How to animate isometric unwrapping of a curve

A while ago I was thinking about how to illustrate the input data in Shape from sensors — in 2D, the input is the unit tangent field parametrized by arc-length.

I ended with this cool-looking isometric and isotopic unwrapping.

*Move the slider to unwrap the curve. You can also play around in fullscreen.*

The effect is achieved by interpolating between the input curve and a straight line with the same length in the tangent space (using spherical linear interpolation).

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