c++ code to convert febio (.log) output into ascii formatted tecplot (.dat) file

[gcoban]

Hi,

We share a short code that can be used to convert febio "*.log" (hex8-hex20) output node/element data sequence into an ascii formatted tecplot360 (2016) "*.dat" file. The logfile entry inside .feb file should be described as,

<logfile>
<element_data name="element data" data="sx;sy;sz;sxy;syz;sxz;s1;s2;s3;Ex;Ey;Ez;Exy;E yz;Exz;E1;E2;E3;F xx;Fyy;Fzz;Fxy;Fyz;Fxz;Fyx;Fzy;Fzx;J" format='elementid %i %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g' > </element_data>
<node_data name="node data" data="x;y;z;ux;uy;uz" format='nodeid %i %g %g %g %g %g %g'></node_data>
</logfile>

which may be modified for the required parameter length. The modifications for a different element scheme or different user defined plugin element data must be applied inside code (recompile). These are some highlights for the shared .zip file ingredients:

- the procedure mktecplot-hex8.cpp uses "armadillo" (http://arma.sourceforge.net/) numerical library for loading and matrix manipulations
- for progress bar it uses a code portion (MIT License) from a third party
- the text search algorithms totally depend on sed (stream editor) tools under UNIX environment. Thus, it should be run under linux os.
- since tecplot does not support quadratic elements, the code should be modified for hex20 manually, there are description lines inside the code.
- the code does not include special data structures originally developed for tecplot format. It can be manually converted to support different file formats (such as GMSH "*.msh") easily.


/mktecplot$ tree

├── compile.sh
├── febio-NH16000.feb (test case)
├── mktecplot-hex8.cpp (code)
├── progress_bar.cpp (progress bar functions)
├── progress_bar.hpp ...
└── untitled.tiff (sample output image)


gcoban (2017)