GiD forum

Hello

I have a question about the internal precision of GID. How many digits does
GID use when representing the coordinates of the nodes? I have a model,
which has a maximum dimension of 2 meters and a minimum distance between
nodes of 0.25 mm. When I load the result file in the postprocessor I get the
message “Finding edges: Problems with the triangle nr..” and the mesh is
deformed in a strange way. Could this be due to the precision of GID maybe
the precision in the result file?



Regards

BF



Billy Fälth

Clay Technology AB

Ideon Research Center

S 223 70 Lund, SWEDEN

Tel +46 46 286 25 81

Fax +46 46 13 42 30

www.claytech.se http://www.claytech.se/





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Internally, in GiD preprocess, the mesh and geometric operations are stored in variables type double (8 bytes), in postproces, and OpenGL visualization are stored using float type (4 bytes).

Your model dimensions are useful, is not a precision problem.

Please, send us your model and result files to check it.

(Can send directly to escolano at cimne.upc.es)

Enrique Escolano
----- Original Message -----
From: Billy Fälth
To: gidlist at gatxan.cimne.upc.es
Sent: Wednesday, February 19, 2003 12:29 PM
Subject: [GiDlist] precision of GID


Hello

I have a question about the internal precision of GID. How many digits does GID use when representing the coordinates of the nodes? I have a model, which has a maximum dimension of 2 meters and a minimum distance between nodes of 0.25 mm. When I load the result file in the postprocessor I get the message "Finding edges: Problems with the triangle nr.." and the mesh is deformed in a strange way. Could this be due to the precision of GID maybe the precision in the result file?



Regards

BF



Billy Fälth

Clay Technology AB

Ideon Research Center

S 223 70 Lund, SWEDEN

Tel +46 46 286 25 81

Fax +46 46 13 42 30

www.claytech.se





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