ncl_c_dspnt2s - Man Page

void c_dspnt2s(int, float [], float [], float [],
               int, float [], float [], float *, int *);

void c_dspnt2s (int n, float x[], float y[], float z[], 
                int m, float xo[], float yo[], float zo, int *ier);

n

The number of input data points.

x

An array containing the X coordinates of the input data points.

y

An array containing the Y coordinates of the input data points.

z

An array containing the functional values of the input  data points. That is, z[l] is the value of the input function at coordinate (x[l],y[l]), for 0 <= l < n .

m

The number of output data points (this may be "1").

xo

An array of dimension m containing the X coordinates of the  output data. The values in xo may be in any order.

yo

An array of dimension m containing the Y coordinates of the  output data. The values in xo may be in any order.

zo

A pointer to a float. Space for m floats is allocated for zo by  dspnt2s. zo[i] is the interpolated value at point (xo[i],yo[i])  for 0 <= i < n .

ier

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.

This function is called when you want to interpolate 2D data at an individual point or points.

To use c_dspnt2s, load the NCAR Graphics library ngmath.

dsgrid, dsgrid_params.

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

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