ncl_natgrid_params man page

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/n…

Info

March 1997-1998 UNIX NCAR GRAPHICS