geodesic surface
geod
geod(id)
Builds the surface identifier id, whose geodesics are horizontal circles of 24 vertices
and radius 100 displaced vertically 13 times along the generating line segment which is
segment (0,100,0, 0,-100,0).
Options:
close: closed surface.
poi(p1): p1=x1,y1,z1,...
poi(p2): p2=x1,y1,z1,...
...
All lines must pi have the same number of points.
The surface is generated by the geodesic curves pi.
Other forme:
geod(id);
poi(p1);
poi(p2);
...
end vol(id);
Properties propriétés may be added at creation time.
geod(id)[close]secx(nx)
Build the empty volume id of type geod with nx x sections.
Then stack geodesics the same dimension nx+1:
Puis empiler des géodésiques de dimension nx+1:
poi(0)vol(id)=p1;
poi(0)vol(id)=p2;
...
To actually build the volume id do:
end vol(id).
If close is present the surface is closed, if the geodesics are closed will require
nx = NP (pi) - 1, if they are open it will nx = NP (pi).