On 9/25/12 11:01 PM, walter kou wrote:
> I just use VISIT 2.5.2 to visualize the output data in example: 3D Linear
> Elastic Cantilever
> ,<http://libmesh.sourceforge.net/systems_of_equations_ex6.php>
> I can see the displacement and force drawn on initial configuration. But I
> wonder whether I can see the deformed configuration in VISIT. (I want to
> see how the beam bends)
It takes a little work to do this in VisIt, but it can be done. Setup a
new "vector" expression whose components are the scalar components of
the displacement vector. E.g. if the displacement vector has components
u1, u2, u3, then I would set up an expression named "u" that is defined by:
{u1,u2,u3}
Next, use the deform operator to deform the mesh or other plots. You
will need to set the operator attributes for the deform operator to
correspond to the displacement vector.
You may want to save settings after doing this so that VisIt remembers
the definitions of the expressions.
-- Boyce
PS: By default, when you have libMesh output an ExodusII file of a 2D
mesh, the generated file actually contains a 3D mesh, but with the z
component set to zero. So if you try to do this with a 2D simulation,
you would use:
{u1,u2,0}
and not:
{u1,u2}
In this case, you might also want to use the "project" operator. (Also,
I think you still need to give all three components even if you first
apply the project operator.)
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