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eval3dp Scilab Group Scilab Function eval3dp
NAME
eval3dp - compute facets of a 3D surface
CALLING SEQUENCE
[x,y,z]=eval3dp(fun,p1,p2)
PARAMETERS
x,y,z : matrices of size (4,n-1*m-1). x(:,i) ,y(:,i) and z(:,i) are
respectively the x-axis, y-axis and z-axis coordinates of the 4
points of the ith four sided facet.
fun : a Scilab function.
p1 : a vector of size n.
p2 : a vector of size m.
DESCRIPTION
eval3dp computes a four sided facets representation of a 3D surface
defined by the function fun. fun(p1,p2) computes the x-axis ,y-axis and
z-axis coordinates of the corresponding points on the surface, as
[x(i),y(i),z(i)]=fun(p1(i),p2(i)). This is used for efficiency.
EXAMPLE
p1=linspace(0,2*%pi,10);
p2=linspace(0,2*%pi,10);
deff("[x,y,z]=scp(p1,p2)",["x=p1.*sin(p1).*cos(p2)";..
"y=p1.*cos(p1).*cos(p2)";..
"z=p1.*sin(p2)"])
[x,y,z]=eval3dp(scp,p1,p2);
plot3d(x,y,z)
SEE ALSO
genfac3d, plot3d
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