bionic (3) cssgridd.3NCARG.gz

Provided by: libncarg-dev_6.4.0-9_amd64 bug

NAME
       CSSGRIDD - tension spline interpolation on a sphere.


SYNOPSIS
       CALL CSSGRIDD (N, RLAT, RLON, F, NI, NJ, PLAT, PLON, FF, IWK, RWK, IER)


DESCRIPTION
       N           (integer,input) The number of input data points (N > 2).

       RLAT        (double  precision,  input) An array containing the latitudes of the input data, expressed in
                   degrees.  The first three points must not be collinear (lie on a common great circle).

       RLON        (double precision, input) An array containing the longitudes of the input data, expressed  in
                   degrees.

       F           (double  precision,  input)  An  array  containing data values. F(I) is a functional value at
                   (RLAT(I),RLON(I)) for I = 1 to N.

       NI          (integer, input) The number of rows in the uniform output grid. NI can be 1.

       NJ          (integer, input) The number of columns in the uniform output grid. NJ can be 1.

       PLAT        (double precision, intput) An array of length NI containing the  latitudes  the  output  grid
                   lines.  The values in PLAT should be in degrees.

       PLON        (double  precision,  intput)  An array of length NJ containing the longitudes the output grid
                   lines.  The value in PLON should be in degrees.

       FF          (double precision, output) An NI by NJ array  containing  the  desired  interpolated  values.
                   FF(I,J)  is the interpolated value at the coordinate specified by PLAT(I) and PLON(J) for I =
                   1 to NI and J = 1 to NJ.

       IWK         (integer, input) An integer workspace of length 27*N.

       RWK         (double precision, input) A work array dimensioned for 13*N.  Note that  RWK  must  be  typed
                   DOUBLE PRECISION.

       IER         (integer,  output)  An  error  return  value.   If  IER is returned as 0, then no errors were
                   detected. If IER is non-zero, then refer to the man page for cssgrid_errors for details.


USAGE
       CSSGRIDD is called to find an interpolating tension spline for data  randomly  positioned  on  a  sphere.
       CSSGRIDD is a double precision version of CSSGRID.


ACCESS
       To use CSSGRIDD, load the NCAR Graphics library ngmath.


SEE ALSO
       css_overview, csstri, cssgrid, cssgrid_errors

       Complete documentation for Cssgrid is available at URL
       http://ngwww.ucar.edu/ngdoc/ng/ngmath/cssgrid/csshome.html


       Copyright (C) 2000
       University Corporation for Atmospheric Research

       The use of this Software is governed by a License Agreement.