dsgrid3d (3NCARG)

CALL DSGRID3D (NPNTS, X, Y, Z, U, NUMXOUT, NUMYOUT, NUMZOUT,

XO, YO, ZO, UO, IER)

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.

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.

To use DSGRID3D, load the NCAR Graphics library ngmath.

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

Copyright (C) 2000

University Corporation for Atmospheric Research

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