[Gmsh] Displaying nodal vector data

[Christophe Geuzaine]

Tom Pace wrote:
> Hello,
> I was trying to display some nodal vector data, but not a single arrow
> appears. The msh file below is a simple example of what I'm trying to
> do. Am I leaving something out?
> 

Hi Tom - the node in question (node 1) only belongs to a quad, which has
no other associated data, and is hence skipped.

If you only have data on a single node, just add a "point" element at
that node (element 1002 below):

$MeshFormat
2.0 0 8
$EndMeshFormat
$Nodes
6
1 0.0 0.0 0.0
2 0.1 0.0 0.0
3 0.1 0.3 0.0
4 0.0 0.3 0.0
5 0.0 0.15 0.0
6 0.1 0.15 0.0
$EndNodes
$Elements
3
1000 3  2 6 100  1 2 6 5
1001 3  2 6 100  5 6 3 4
1002 15 2 1 1    1
$EndElements
$NodeData
1
"Node vector data"
0
3
0
3
1
1 0.4 0.4 0
$EndNodeData



> Thanks,
> Tom
> 
> PS: I'm very impressed with the capabilities of gmsh, and look forward
> to learning more about how to use it.
> 
> --
> MeshFormat
> 2.0 0 8
> $EndMeshFormat
> $Nodes
> 6
> 1 0.0 0.0 0.0
> 2 0.1 0.0 0.0
> 3 0.1 0.3 0.0
> 4 0.0 0.3 0.0
> 5 0.0 0.15 0.0
> 6 0.1 0.15 0.0
> $EndNodes
> $Elements
> 2
> 1000 3  2 6 100  1 2 6 5
> 1001 3  2 6 100  5 6 3 4
> $EndElements
> $NodeData
> 1
> "Node vector data"
> 0
> 3
> 0
> 3
> 1
> 1 0.4 0.4 0
> $EndNodeData
> --
> 
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> 
> 


-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine