Hello Paul Do you have an example of typical 3D data ? Can it be safely projected on a principal plane ? Is it noisy ?
S. > Le 6 sept. 2018 à 21:50, Carrico, Paul <[email protected]> a écrit : > > Dear All > I’ve not been using scilab for a while, but I’ve a good opportunity to dive > into it once again ;-) > Is there a tool implemented into Scilab to determine the cross section of a > 3D (experimental) surface and a plane? > Note that : > - the curve has not a Cartesian equation and it is composed of a > point cloud coming for experimental measurement, > - ideally the tool looks for the closest out of plane points in > order to perform interpolations > Before reinventing the wheel, I’m wondering if something exists. > Nb: I built a saddle surface, but of course only points (not necessary > equally spaced) exist in the real life. > Thanks for any advice and suggestion > Paul > function [z]=saddle(x, y) > z = x^2 - y^2 > endfunction > > // surface making ... of course in the real life the surface comes from > exprimental data (no cartesian equation is attached on)) > n = 50; > x = linspace(-2,2,n)'; > y = linspace(-1,3,n)'; > z = feval(x,y,saddle); > plot3d(x,y,z); > > // plane equation: ax + by + cz + d = 0 > > > > EXPORT CONTROL : > Cet email ne contient pas de données techniques > This email does not contain technical data > > > _______________________________________________ > users mailing list > [email protected] > https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/lists.scilab.org/mailman/listinfo/users
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