[Scilab-users] surf and plot3d

[Patrice MEGRET]

Dear Jens,

If you use plot3d instead of surf, it is ok.

The problem is that surf uses Matlab definition of the matrix Z whereas plot3d, ... use Scilab definition. ==> there is a transposition between these two definitions (see help file)

Ndgrid for plot3d, contour, ...
Meshgrid for surf

If you would like to use surf with ndgrid: surf(x,y,Z.')

PM




De : users [mailto:users-bounces at lists.scilab.org] De la part de Jens Simon Strom
Envoyé : dimanche 14 mai 2017 18:51
À : International users mailing list for Scilab. <users at lists.scilab.org>
Objet : [Scilab-users] surf and plot3d


Hi,

Please check the graph below:



x=[0 1]; y=[0 2];

[X,Y]=ndgrid(x,y)

Z=X+2*Y

xdel();

surf(x,y,Z)

param3d(X,Y,Z)

ce=gce();   ce.line_mode="off";   ce.mark_mode = "on";   ce.mark_size = 10

ca=gca(); ca.rotation_angles=[65 290];



The facet corners do not coincide with the marks in Version 5.4.0. and 5.5.2.. Shouldn't they?



Kind regards

Jens
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