ncl_dsgrid3d - Man Page

double precision Fortran entry for 3D gridding

Synopsis

CALL DSGRID3D (NPNTS, X, Y, Z, U, NUMXOUT, NUMYOUT, NUMZOUT,
XO, YO, ZO, UO, IER)

Description

NPNTS

(Integer, Input) - The number of input data points.

X

(Double precision, Input) - An array containing the X  coordinates of the input data points.

Y

(Double precision, Input) - An array containing the Y  coordinates of the input data points.

Z

(Double precision, Input) - An array containing the Z  coordinates of the input data points.

U

(Double precision, Input) - An array containing the functional  values of the input data points.  That is, U(L) is the value of the input function at coordinate  (X(L),Y(L),Z(L)), for L=1,NPNTS.

NUMXOUT

(Integer, Input) - The number of X values in the output grid.

NUMYOUT

(Integer, Input) - The number of Y values in the output grid.

NUMZOUT

(Integer, Input) - The number of Z values in the output grid.

XO

(Double precision, Input) - An array of dimension NUMXOUT containing the X  coordinates of the output data grid. The values in XO must be  increasing, but need not be equally spaced.

YO

(Double precision, Input) - An array of dimension NUMYOUT containing the Y  coordinates of the output data grid. The values in YO must be  increasing, but need not be equally spaced.

ZO

(Double precision, Input) - An array of dimension NUMZOUT containing the Z  coordinates of the output data grid. The values in ZO must be  increasing, but need not be equally spaced.

UO

(Double precision, Output) - A three-dimensional  array dimensioned as UO(NUMXOUT,NUMYOUT,NUMZOUT) containing the interpolated functional values. UO(I,J,K) is the  interpolated value at grid point (XO(I),YO(J),ZO(K)).

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 dsgrid_errors for details.

Usage

DSGRID3D is the single precision gridding function in the Dsgrid package. The behavior of DSGRID3D is controlled by values set for the various parameters described in dsgrid_params.  Values for these parameters can be set using the subroutines DSSETI, DSSETRD, and DSSETC.

Access

To use DSGRID3D, load the NCAR Graphics library ngmath.

See Also

dsgrid, dsgrid_params,  dsseti,  dsgeti,  dssetrd  dsgetrd  dssetc,  dsgetc.

Complete documentation for Dsgrid is available at URL
http://ngwww.ucar.edu/ngdoc/ng/ngmath/dsgrid/dshome.html

Info

September 1997-1998 UNIX NCAR GRAPHICS