C / C++ language:
Include the file header file gidpost.h to use the libray gidpost
#include "gidpost.h"
Small examples:
- testpost.c, is provided to show the use of the library from C/C++.
- testpost_fd.c that use the *f functions where the file handler is explicitly specified (to allow multiple files)
- IGA_test_1.c, to show the use of OnNurbsSurface isogeometric results
FORTRAN language:
A small example, called testpostfor.f, is provided to show the use of the library with FORTRAN 77
the same case is implemented with FORTRAN 90 in the example testpost.f90, using the gidpost.F90 interface module
Note: The gidpost fortran 90 module use the new ISO_C_BINDING intrinsic module defined in the Fortran 2003 standard.
(Tested in intel fortran >= 10.1, Sun/Oracle studio >= 12.1, and GNU gfortran >= XX)
Link libraries: gidpost.lib zlib.lib hdf5.lib (Linker - Input - Additional Dependencies)
and remember set the path to these libraries (e.g. Linker - General - Additional Library Directories - ..\..\binaries\win\x32)
Note: the hdf5.lib library is only required to write files with HDF5 format.
Note: For Linux platforms the extension of libraries is .a instead of .lib
Python module:
Inside the folder gidpost/gidpost-swig there are a couple of examples on how to use gidpost python module.
Once the module has been built and installed, then you can use it like this:
$ python3 Type "help", "copyright", "credits" or "license" for more information. >>> import gidpost gidpost.GiD_PostInit() gidpost.GiD_OpenPostResultFile( "gidpost-test.post.h5", gidpost.GiD_PostHDF5) # create connectivity array for each element # two triangles elem_connec_1 = gidpost.new_intArray( 3) elem_connec_2 = gidpost.new_intArray( 3) # 1 quadrilateral elem_connec_3 = gidpost.new_intArray( 4) # Create an array # id's begin at 1 gidpost.intArray_setitem( elem_connec_1, 0, 1) gidpost.intArray_setitem( elem_connec_1, 1, 2) gidpost.intArray_setitem( elem_connec_1, 2, 3) gidpost.intArray_setitem( elem_connec_2, 0, 1) gidpost.intArray_setitem( elem_connec_2, 1, 3) gidpost.intArray_setitem( elem_connec_2, 2, 4) gidpost.intArray_setitem( elem_connec_3, 0, 2) gidpost.intArray_setitem( elem_connec_3, 1, 5) gidpost.intArray_setitem( elem_connec_3, 2, 6) gidpost.intArray_setitem( elem_connec_3, 3, 3) gidpost.GiD_BeginMeshColor( "test gp_py triangles", gidpost.GiD_3D, gidpost.GiD_Triangle, 3, 0.6, 0.5, 0.4) gidpost.GiD_BeginCoordinates() gidpost.GiD_WriteCoordinates( 1, 0.0, 0.0, 0.0) gidpost.GiD_WriteCoordinates( 2, 1.0, 0.0, 0.0) gidpost.GiD_WriteCoordinates( 3, 1.0, 1.0, 0.0) gidpost.GiD_WriteCoordinates( 4, 0.0, 1.0, 0.0) # coordinates of other meshes can be written here or at each mesh gidpost.GiD_WriteCoordinates( 5, 2.0, 0.0, 0.0) gidpost.GiD_WriteCoordinates( 6, 2.0, 1.0, 0.0) gidpost.GiD_EndCoordinates() gidpost.GiD_BeginElements() gidpost.GiD_WriteElement( 1, elem_connec_1) gidpost.GiD_WriteElement( 2, elem_connec_2) gidpost.GiD_EndElements() gidpost.GiD_BeginMeshColor( "test gp_py quadrilaterals", gidpost.GiD_3D, gidpost.GiD_Quadrilateral, 4, 0.8, 0.2, 0.5) # coordinates of other meshes can be written in the first mesh or at each mesh # gidpost.GiD_BeginCoordinates() # gidpost.GiD_WriteCoordinates( 5, 2.0, 0.0, 0.0) # gidpost.GiD_WriteCoordinates( 6, 2.0, 1.0, 0.0) # gidpost.GiD_EndCoordinates() gidpost.GiD_BeginElements() gidpost.GiD_WriteElement( 3, elem_connec_3) gidpost.GiD_EndElements() # Writing results gidpost.GiD_BeginResultHeader( "test nodal", "gidpost", 1.0, gidpost.GiD_Scalar, gidpost.GiD_OnNodes, "") # id's begin at 1 gidpost.GiD_WriteScalar( 1, 10.0) gidpost.GiD_WriteScalar( 2, 20.0) gidpost.GiD_WriteScalar( 3, 30.0) gidpost.GiD_WriteScalar( 4, 40.0) gidpost.GiD_WriteScalar( 5, 50.0) gidpost.GiD_WriteScalar( 6, 60.0) gidpost.GiD_EndResult() gidpost.GiD_BeginResultHeader( "test elemental", "gidpost", 1.0, gidpost.GiD_Scalar, gidpost.GiD_OnGaussPoints, "GP_ELEMENT_1") # id's begin at 1 gidpost.GiD_WriteScalar( 1, 11.0) gidpost.GiD_WriteScalar( 2, 22.0) gidpost.GiD_WriteScalar( 3, 33.0) gidpost.GiD_EndResult() gidpost.GiD_ClosePostResultFile() gidpost.GiD_PostDone() gidpost.delete_intArray( elem_connec_1) gidpost.delete_intArray( elem_connec_2) gidpost.delete_intArray( elem_connec_3)