1NNPNTINITD(3NCARG)               NCAR GRAPHICS              NNPNTINITD(3NCARG)
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NAME

6       NNPNTINITD- Enter single point mode in double precision
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SYNOPSIS

9       CALL NNPNTINITD (NPNTS, X, Y, Z)
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DESCRIPTION

12       NPNTS       (Integer,  Input) - The number of input data points. (NPNTS
13                   > 3).
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15       X           (Double precison, Input) - An array of dimension NPNTS con‐
16                   taining the X coordinates of the input data points.
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18       Y           (Double precison, Input) - An array of dimension NPNTS con‐
19                   taining the Y coordinates of the input data points.
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21       Z           (Double precison, Input) - An array of dimension NPNTS con‐
22                   taining  the  functional  values  of the input data points.
23                   That is, Z(L) is the value of the input function at coordi‐
24                   nate (X(L),Y(L)), for L=1,NPNTS.
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USAGE

27       This  subroutine  is  called  when you want to interpolate at individal
28       points.  It is an initialization routine that  sets  up  some  internal
29       variables  and  does  this  initial triangulation.   To actually do the
30       interplation, use subroutine NNPNTD.  To terminate single  point  mode,
31       use the subroutine NNPNTENDD.
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ACCESS

34       To use NNPNTINITD, load the NCAR Graphics library ngmath.
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SEE ALSO

37       natgrid, natgrid_params, natgridd, nnpntd, nnpntendd.
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39       Complete documentation for Natgrid is available at URL
40       http://ngwww.ucar.edu/ngdoc/ng/ngmath/natgrid/nnhome.html
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43       Copyright (C) 2000
44       University Corporation for Atmospheric Research
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46       The use of this Software is governed by a License Agreement.
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50UNIX                            March 1997-1998             NNPNTINITD(3NCARG)
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