README

Test case to interpolate sparse 2D data sets onto the FE mesh.

data are read from an ASCII file (x,y,variable)
Dec. 2013 : possibility to read NETCDF has been added (if data file has a .nc extension)

Interpolation is made using external libraries
 - nn (http://code.google.com/p/nn-c/): a c code for Natural Neighbours interpolation
 - csa (http://code.google.com/p/csa-c/) : a c code for cubic spline approximation

!! To use the solver :
	- nn and csa libraries must be compiled by the user
	- Go to the ELMER_TRUNK/elmerice/ScatteredDataInterpolator directory
	- Edit/Update the Makefile and compile/install the solver


!! The user is invited to get familiar with these libraries by usibg the command line utilities and test case provided with the libraries