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[ff3d-users] "No cell has reference that matches" can be resolve, but...
From: |
Robert Li |
Subject: |
[ff3d-users] "No cell has reference that matches" can be resolve, but... |
Date: |
Mon, 26 Jan 2004 16:13:24 -0800 (PST) |
Dear Stephane Del Pino,
I can resolve the problem "No cell has reference
that matches (2)!", when I set the distance(from the
origin) is 0.2, not 0.5,0.4,0.3 in pov file. That is
to say I can not get the actual face of the box(z=-0.5
bottom, z=2 up). I don't know why?
(I used FDM method here, because I will use more
than one box, just like soil layers, I want to
extract different layer boundary, then set boundary
condition). which method of FEM and FDM is possible?
Robert
>>>>>>POV file
box { <-0.5, -0.5, -0.5>, < 4, 4, 2 > pigment {
color rgb <1,0,0> } }
plane { <0,0,-1>, 0.2 pigment { color rgb <1,0,1> }}
plane { <0,0,1>, 1.7 pigment { color rgb <1,1,0> }}
>>>>>>>>input file
vector n = (20, 20, 30);
vertex a = (-1, -1, -2);
vertex b = (5, 5, 8);
mesh M = structured(n,a,b);
scene S = pov("Tplane.pov"); // the pov-ray file for
the geometry
domain O = domain(S, inside(<1,0,0>) and
inside(<1,0,1>) and inside(<1,1,0>));
mesh Omesh = surface (O, M);
mesh s1 = extract(Omesh, 1);
mesh s2 = extract(Omesh, 2);
mesh s3 = extract(Omesh, 3);
solve(u) in O by M //FDM
{
pde(u)
- div(grad(u)) = 0;
u=-10 on s3; //<1,1,0>;
u=3 on s2; //<1,0,1>;
u=0 on M;
};
save(medit,"TT",u,M,dos);
save(medit,"TT",M,dos);
exec("medit TT");
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- [ff3d-users] "No cell has reference that matches" can be resolve, but...,
Robert Li <=