natgrid_params(3NCARG)

NAME
natgrid_params - This document briefly describes all the internal parameters of Natgrid.

DESCRIPTION
Each entry below includes the name of a parameter, its Fortran type (use the obvious equivalents for C), its default value, and a short description of the parameter.

'ADF'   -   Integer   -    0
    Flags if the data file of algorithmic information for display with nnalg is produced - see parameter alg (0=no; 1=yes).

'ALG'   -   Character   -   'nnalg.dat'
    File name for input to the algorithmic display tool nnalg (see parameter adf).

'ASC'   -   Integer   -   1
    Flags if automatic scaling is allowed (0 = no; 1 = yes).

'bI'   -   Real   -   1.5
    Tautness factor that increases the effect of the gradient estimates as bI increases.

'bJ'   -   Real   -   7.0
    Tautness factor that decreases the breadth of the region affected by the gradient estimates as bJ increases.

'EXT'   -   Integer   -   1
    Flags whether extrapolation is allowed outside the convex hull (0=no; 1=yes).

'HOR'   -   Real   -   0.1*(extent of X output grid)
    Specifies the amount of horizontal overlap to be included outside of the current region when doing subblocking.

'IGR'   -   Integer   -   0
    Flag indicating if gradient estimates are to be computed (1=yes; 0=no).

'MAGX'   -   Real   -   1.0
    Scale factor for X coordinate input values.

'MAGY'   -   Real   -   1.0
    Scale factor for Y coordinate input values.

'MAGZ'   -   Real   -   1.0
    Scale factor for Z coordinate input values.

'MDM'   -   Integer   -   10
    Maximum number of informational messages about duplicate point culls.

'NON'   -   Integer   -   0
    Flags whether interpolated values are allowed to be negative (0=yes; 1=no).

'NUL'   -   Real   -   0.0
    The value to be used on output for points outside of the convex hull when extrapolation is not allowed.

'RAD'   -   Integer   -   0
    Flags if slopes and aspects are returned in radians or degrees (1=radians;0=degrees).

'SDI'   -   Integer   -   0
    Flags if slopes and aspects are computed (0=no; 1=yes).

'UPD'   -   Integer   -   1
    Flags if the output array goes from south to north or north to south (0=north to south; 1=south to north).

'VER'   -   Real   -   0.1*(extent of Y output grid)
    Specifies the amount of vertical overlap to be included outside of the current region when doing subblocking.

'XAS'   -   Real   -   1.0
    Contains the scale value for automatic scaling of X input values in the most recent interpolation call. For retrieval only.

'YAS'   -   Real   -   1.0
    Contains the scale value for automatic scaling of Y input values in the most recent interpolation call. For retrieval only.

'ZAS'   -   Real   -   1.0
    Contains the scale value for automatic scaling of Z input values in the most recent interpolation call. For retrieval only.

SEE ALSO
c_natgridd, c_natgrids, c_nngetaspectd, c_nngetaspects, c_nngetc, c_nngeti, c_nngetr, c_nngetrd, c_nngetsloped, c_nngetslopes, c_nnpntd, c_nnpntend, c_nnpntendd, c_nnpntinitd, c_nnpntinits, c_nnpnts, c_nnsetc, c_nnseti, c_nnsetr, c_nnsetrd, natgrid, natgrid_params, natgridd, natgrids, nngetaspectd, nngetaspects, nngetc, nngeti, nngetr, nngetrd, nngetslopes, nngetslpped, nnpntd, nnpntend, nnpntendd, nnpntinitd, nnpntinits, nnpnts, nnsetc, nnseti, nnsetr, nnsetrd.

Complete documentation for Natgrid is available at URL
http://ngwww.ucar.edu/ngdoc/ng/ngmath/natgrid/nnhome.html

COPYRIGHT
Copyright (C) 2000
University Corporation for Atmospheric Research

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