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Mongi Mansouri (mongim_pde)
Member
Username: mongim_pde

Post Number: 34
Registered: 11-2003
Posted on Wednesday, May 11, 2005 - 08:37 am:   

Dear All...
I posted this message with the wrong heading by mistake. It should 've been a new thread. I am posting again to correct this. My apologies ...

Here is my message again:
I have to do some post-processing on elevation data on two circular boundaries (call them B1 and B2) in a 2D model. I use

ELEVATION(#Var) on "B1"
EXPORT(n) FORMAT "#d #1" FILE="FILE-NAME"

where n = number of points.

However, the length of the exported data for boundaries B1, B2 are different. I need to perform pointwise operations on the data that are saved and this requires that they have to be same length.
I must note that the FPDE default mesh on B1 and B2 are different.

Question is:
How to export data on circular boundaries B1 and B2 (separately) such that the ength of data is the same?

I know there is such option when u use the
FROM...TO modifier in FlexPDE and that 's to specify PRINT(n) or
EXPORT(n), etc. But I cannot use this modifiers for circular boundaries using the above syntax...

Any suggestion to this is appreciated.
/MongiM
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Robert G. Nelson (rgnelson)
Moderator
Username: rgnelson

Post Number: 358
Registered: 06-2003
Posted on Wednesday, May 11, 2005 - 05:37 pm:   

When you export an Elevation on a boundary, the number of points is derived from the mesh on the boundary, so unless the mesh on the two boundaries is the same, the exported data will be at different points. There is not currently a way to override this.

You could specify MESH_SPACING on the two boundaries small enough that there is no mesh refinement (or turn the mesh refinement off). This should result in the same export table.

Otherwise, you will have to externally interpolate the exported table at a convenient set of points.

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