# `t2d` and `t3d`

The programs `t2d` and `t3d` 2.3 translate two-dimensional (respectively, three-dimensional) mesh files from one format to another. To use these programs, enter the `GRUMMP/src/IO_generator` directory. Edit the files `t[23]d_in.template` and `t[23]d_out.template`; see Section 3.2 for information on the format of these files. Then type `make t[23]d`.2.4 The resulting executable will read a mesh in the format specified in `t[23]d_in.template` and write it in the format specified in `t[23]d_out.template`. The only argument to `t[23]d` is `-i basefilename`, which has the same meaning as for the other executables. Again, output files have `.out` appended to their names to avoid filename collisions.