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Change export node ordering in Gmsh

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Old   August 11, 2015, 21:42
Default Change export node ordering in Gmsh
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I have written a software that works only on structured grids and reads in the grid from a .msh file. I notice that when I create an msh file on gmsh, the corner nodes get written out first and then the interior nodes. Is it possible to change this during export so that the nodes get written out in a structured form?

For example if I have 5X5 grid where the four corner points are (0,0), (4,0), (0,4) and (4,4), right now gmsh is writing out these nodes first and then the interior ones whereas I'd like to write out the (4,0) node as the 5th node, the (0,4) node as the 20th and the (4,4) as the 25th node...

Thank you for your help!

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