TOMS526 is a FORTRAN90 library which interpolates scattered bivariate data, by Hiroshi Akima.
TOMS526 accepts a set of (X,Y) data points scattered in 2D, with associated Z data values, and is able to construct a smooth interpolation function Z(X,Y), which agrees with the given data, and can be evaluated at other points in the plane.
TOMS526 is a FORTRAN90 version of ACM TOMS Algorithm 526.
The original, true, correct version of ACM TOMS 526 is available in the TOMS subdirectory of the NETLIB web site.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
TOMS526 is available in a FORTRAN77 version and a FORTRAN90 version.
RBF_INTERP, a FORTRAN90 library which defines and evaluates radial basis interpolants to multidimensional data.
TEST_INTERP_ND, a FORTRAN90 library which defines test problems for interpolation of data z(x), depending on an M-dimensional argument.
TOMS660, a FORTRAN90 library which takes scattered 2D data and produces an interpolating function F(X,Y), this is a FORTRAN90 version of ACM TOMS algorithm 660, called qshep2d, by Robert Renka.
TOMS661, a FORTRAN90 library which takes scattered 3D data and produces an interpolating function F(X,Y,Z), this is a FORTRAN90 version of ACM TOMS algorithm 661, called qshep3d, by Robert Renka.
TOMS790,
a FORTRAN77 library which
computes an interpolating function to a set of scattered data in the plane;
this library is commonly called CSHEP2D;
by Robert Renka;
this is ACM TOMS algorithm 790.
TOMS792,
a FORTRAN77 library which
tests functions that interpolate scattered data in the plane;
by Robert Renka;
this is ACM TOMS algorithm 792.
Original FORTRAN77 version by Hiroshi Akima. FORTRAN90 version by John Burkardt.
You can go up one level to the FORTRAN90 source codes.