3}
Then use a slider to interpolate between these two sets:
slider t varies between 0.0 and 1.0, the expression that interpolates:
R = A + t * (B-A)
where R is the final random number. Of course this means you only get a very small subset of randomness, but at least it's smooth. If you want to evolve every single facade value, you'll need to create one slider per panel and evolve them all.
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David Rutten
david@mcneel.com
Poprad, Slovakia…
height.
In case of the spirals you were linking to, this relationship isn't trivial. Actually there are three radii and heights involved.
If you only want a simple helix with constant radius r and given height h, the arclength calculates to L = T*SQRT(r^2+h^2), where T depends on the number of wraps your helix has. (see here) You can use this equation to relate radius to height.
If your spiral is spline as in the example through multiple points, the length is way harder to calculate. You could fake it by lets say using the inverse of height as a radius. That way, the height will decrease with radius but the length will not remain constant.…