Le 01/10/2018 à 16:35, Jens Simon Strom a écrit :
Thanks Samuel,
%nan works with surf, not with plot3d. The latter is attractive because it can handle polygons - but unfortunately not those with embayments: Facet coloring exeeds the contour (Vers. 5.5.2)

This is fixed in Scilab 6.

I have to assemble my facet with several windos from partially overlapping rectangles

You may use this:

xf = [1 -1 -1 1 1 0.5 0.5 -0.5 -0.5 0.5]'; yf = [-1 -1 1 1 -1 -0.5 0.5 0.5 -0.5 -0.5]'; zf = zeros(yf);
red  =  color("red");
plot3d(xf,  yf,  list(zf,  red))//Facet
set(gce(),  "foreground",  red,  "hiddencolor",  red);




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