Hello,
have you checked that the line is not *behind* the surface ?
S.
Le 06/11/2018 à 12:28, Carrico, Paul a écrit :
Dear All
I’m trying to superimpose a basic line onto a 3D surface, but none of
the parameters (color, thickness and so on) I’m trying to implement
works: what I’m doing wrong?
Thanks for your support
Paul
mode(0);
clear
function[*z*]=_saddle_(*x*, *y*)
*z* = *x*^2 - *y*^2
endfunction
n= 100;
x= _linspace_(-2,2,n)'; /// (n,1) matrix/
y= _linspace_(-1,3,n)'; /// (n,1) matrix/
z= feval(x, y, _saddle_); /// (n,n) matrix/
Line= [1 -2 -3 ; -2 -2 -3];
/// plot/
_scf_(0);
drawlater();
f= _gcf_();
f.figure_size= [1000, 1000];
f.background= color(255,255,255);
a= _gca_();
a.font_size= 2;
a.x_label.text= '$X$';
a.x_label.font_size= 4;
a.y_label.text= '$Y$';
a.Y_label.font_size= 4;
a.z_label.text= "$\sigma$";
a.z_label.font_size= 4;
plot3d(x,y, feval(x, y, _saddle_));
_surf_= gce();
curve=_gce_();
param3d(Line(:,1),Line(:,2),Line(:,3));
e2= _gce_();
p2= e2.children;
p2.thickness= 2 ;
p2.foreground= color(255,0,0);
p2.line_Style= 1;
p2.mark_mode="on";
p2.mark_style= 0;
p2.mark_size_unit="tabulated";
p2.mark_size= 1;
p2.mark_foreground= color(255,0,0);
p2.mark_background= color(255,0,0);
drawnow();
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Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
http://www.utc.fr/~mottelet
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