/*! \page rstlib GRASS Library for interpolation with regularized splines with tension

\tableofcontents


Including and linking
=====================

Include interpf.h, qtree.h and dataquad.h header files according
to which you need:

    #include <grass/interpf.h>
    #include <grass/qtree.h>
    #include <grass/dataquad.h>

Extend `LIBES` and `DEPENDENCIES` in your `Makefile` by the following:

    LIBES = $(INTERPFLLIB) $(GMATHLIB)
    DEPENDENCIES = $(INTERPFLDEP) $(GMATHDEP)


Main functions and structures
=============================

Main functions include:
- IL_init_params_2d()
- IL_init_func_2d()
- IL_vector_input_data_2d()
- IL_create_bitmask()
- IL_resample_interp_segments_2d()
- IL_resample_output_2d()
- IL_output_2d()

Main data structures include:
- interp_params
- tree_info
- \ref multtree


Example usages
==============

- \gmod{v.surf.rst}
- \gmod{r.resamp.rst}


References
==========

The methods are described in the following papers.
Please, use these papers as references in your publications when you
used the library or derived modules.

- Mitasova, H., and  Mitas, L., 1993,
    Interpolation by Regularized Spline with Tension:
    I. Theory  and  implementation.  Mathematical Geology, 25, 641-55.
- Mitasova, H., and Hofierka, L., 1993
    Interpolation by Regularized Spline with Tension: 
    II. Application to terrain modeling and surface geometry  analysis.
    Mathematical Geology, 25, 657-69.
- Mitasova, H., Mitas, L., Brown, W.M., Gerdes, D.P., Kosinovsky, I.,
    Baker, T., 1995, Modeling spatially and temporally
    distributed phenomena: New methods and tools for GRASS GIS. 
    International Journal of Geographic Information Systems,9(4), 433-46.

*/