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genfac3d(2) Scilab Function genfac3d(2)
NAME
genfac3d - convert 3d datas to four sided facets
CALLING SEQUENCE
[xx,yy,zz]=genfac3d(x,y,zmat [,mask])
PARAMETERS
zmat : a (mxn) matrix.
x :x axis coordinates vector ( size m )
y :y axis coordinates vector ( size n )
mask : boolean optional matrix with same size as zmat used to
select entries of zmat to be represented by facets.
xx,yy,zz : Three 4x(n-1xm-1) matrices. xx(:,i),yy(:,i),zz(:,i) are
respectively the
x-axis,y-axis and z-axis coordinates of the ith facet
DESCRIPTION
Converts 3d data ( two vectors x,y and a matrix z which code the surface
z(i,j)=f(x(i),y(j)) ) to a four sided facets representation.
EXAMPLE
t = linspace(0,2*%pi,10);
zmat=sin(t')*cos(t);
plot3d(t,t,zmat)
[xx,yy,zz]=genfac3d(t,t,zmat);
plot3d(xx,yy,zz)
plot3d([xx xx],[yy yy],[zz 4+zz])
SEE ALSO
plot3d, eval3dp
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