obj_io

obj_io, a Fortran90 code which reads or writes some of the 3D graphics information stored in an Alias OBJ file.

Licensing:

The information on this web page is distributed under the MIT license.

Languages:

obj_io is available in a C++ version and a Fortran90 version and a MATLAB version and an Octave version.

Related Data and Programs:

obj_io_test

ivcon, a C++ code which converts graphics information between STLA and other formats.

ivread, a Fortran90 code which converts graphics information between STLA and other formats.

obj, a data directory which has some examples of OBJ files.

obj_to_ply, a C code which reads an OBJ file and writes similar information to a PLY file.

obj_to_tri_surface, a MATLAB code which reads an OBJ file and extracts the surface mesh data as a TRI_SURFACE dataset.

obj2opengl, a PERL code which converts an OBJ file to a C/C++ include file appropriate for use with OpenGL.

ply_to_obj, a C code which reads a PLY 3D graphics file and writes an equivalent OBJ graphics file.

Reference:

1. https://www.alias.com/eng/index.shtml, The Alias web site.

Source Code:

• obj_io.f90, the source code.
• obj_io.sh, compiles the source code.

Examples and Tests:

• obj_io_test.f90, a sample calling program.
• obj_io_test.txt, the output file.

• cube.obj, a simple OBJ file that describes a cube.
• cube_no_normals.obj, an OBJ file describing a cube, without normal vectors, written by OBJ_WRITE.
• cube_normals.obj, an OBJ file describing a cube, including normal vectors, written by OBJ_WRITE.