Dear Libmesh users and developers,
I'm trying to import an unstructured 3D tetrahedral mesh (with which there
is data associated with the nodes) into libmesh. I looked at example 12 and
decided to massage my data into .unv format (currently in .vtu and .tec). I
searched all over the internet to look for specific descriptions of UNV, to
no avail, except finding out that you can put several types of data in a
file:
http://www.amiravis.com/documentation/521/amira/hxideas/HxFileFormat_IDEAS.html
I looked at the only example I could find (ex8/pipe-mesh.unv), and I'm not
sure what to make of it:
-1
2411
1 1 1 11
1.9999999999999995D-01 3.7007434154171882D-17 4.0000000000000000D+00
2 1 1 11
1.0000000000000001D-01 0.0000000000000000D+00 4.0000000000000000D+00
3 1 1 11
1.0000000000000001D-01 9.9999999999999977D-02 4.0000000000000000D+00
4 1 1 11
1.9999999999999998D-01 9.9999999999999977D-02 4.0000000000000000D+00
.....
3977 1 1 11
-4.0000000000000002D-01 -2.9999999999999965D-01 1.5661120000000004D-06
-1
-1
2412
23 115 2 1 7 8
1 2 3 4 31 71 111
151
24 115 2 1 7 8
31 71 111 151 32 72 112
152
25 115 2 1 7 8
32 72 112 152 33 73 113
153
26 115 2 1 7 8
33 73 113 153 34 74 114
154
27 115 2 1 7 8
...
3775 3535 3615 3776 3536 3616
3542 112 2 1 7 6
3776 3536 3616 3777 3537 3617
-1
Is this "-1" an indicator of the start and end of sections? I figure the
2411 and 2412 indicate the data type to come, but I have no idea what the 1
1 1 11 is in the nodes section. I suppose the first would be a node number,
since it becomes 2, 3, 4, etc in subsequent lines. Neither do I get what any
of the numbers are doing in the 2412 section. And am I correct in assuming
that there's no data associated with the nodes, since there's no 2414
section? And by the way, are the D-01's just short for X 10^{-1}? (usually
written as E-01 instead of D-01)
Clarifications would be greatly appreciated. Alternatively, I guess there's
a way to read in file with node data for tecplot and vtu formats, even
though example 12 only deals with UNV?
Thanks,
Karen
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