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

6       NNPNTINITS- Enter single point mode
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SYNOPSIS

9       CALL NNPNTINITS (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           (Real, Input) - An array of dimension NPNTS containing  the
16                   X coordinates of the input data points.
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18       Y           (Real,  Input) - An array of dimension NPNTS containing the
19                   Y coordinates of the input data points.
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21       Z           (Real, Input) - An array of dimension NPNTS containing  the
22                   functional  values  of the input data points. That is, Z(L)
23                   is  the  value  of  the  input   function   at   coordinate
24                   (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 NNPNTS.  To terminate single  point  mode,
31       use the subroutine NNPNTEND.
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ACCESS

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

37       natgrid, natgrid_params, natgrids, nnpnts, nnpntend.
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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       This  documentation  is  free  software; you can redistribute it and/or
47       modify it under the terms of the GNU General  Public  License  as  pub‐
48       lished  by  the  Free  Software  Foundation;  either  version  2 of the
49       License, or (at your option) any later version.
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51       This software is distributed in the hope that it will  be  useful,  but
52       WITHOUT  ANY  WARRANTY;  without  even  the  implied  warranty  of MER‐
53       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  General
54       Public License for more details.
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56       You should have received a copy of the GNU General Public License along
57       with this software; if not, write  to  the  Free  Software  Foundation,
58       Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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63UNIX                            March 1997-1998             NNPNTINITS(3NCARG)
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