c_dspnt2s(3NCARG)

💖 NAME 💖

c_dspnt2s — bestie, this is the one that interpolates at a single point (or a whole lil list of points) in 2D, single precision. 🎀

This page lives in the NCAR GRAPHICS manual, section 3NCARG, so if you're citing it in your notes, that's the vibe. 📚

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🦋 FUNCTION PROTOTYPE 🦋

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

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✨ SYNOPSIS ✨

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

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🌸 DESCRIPTION 🌸

okay so here's the whole cast of characters, one by one, no skips 💅

• n — how many input data points you're feeding in.
• x — the array holding the X coordinates of your input data points.
• y — the array holding the Y coordinates of your input data points.
• z — the array holding the functional values of the input data points. Translation: z[l] is the value of the input function at coordinate (x[l],y[l]), for 0 <= l < n. 🫶
• m — how many output data points you want. and yes, this can literally be "1", so a single point is a totally valid ask. ✨
• xo — an array of dimension m holding the X coordinates of the output data. The values in xo may be in any order. no sorting required, she's flexible like that. 🦋
• yo — an array of dimension m holding the Y coordinates of the output data. The values in xo may be in any order. (yes, it says xo again — that's literally what the page says, i'm not fixing it, i'm reporting it 🙈)
• zo — a pointer to a float. Space for m floats is allocated for zo by dspnt2s. And zo[i] is the interpolated value at point (xo[i],yo[i]) for 0 <= i < n. ⭐
• ier — the error return value. If *ier comes back as 0, then no errors were detected, slay. If *ier is non-zero, then go refer to the man page for dsgrid_errors — that's where the actual explanation lives, i'm not making it up. 😭

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💅 USAGE 💅

You call this function when you want to interpolate 2D data at an individual point, or at a bunch of points. That's the moment. That's the whole assignment. 👑

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🔥 ACCESS 🔥

To use c_dspnt2s, load the NCAR Graphics library ngmath. that's the link-up you need fr fr 💜

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🎀 SEE ALSO 🎀

• dsgrid
• dsgrid_params

Complete documentation for Dsgrid is available at URL http://ngwww.ucar.edu/ngdoc/ng/ngmath/dsgrid/dshome.html — go read it, it's giving main character energy 🌈

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👑 COPYRIGHT 👑

Copyright (C) 2000 University Corporation for Atmospheric Research

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

not me being legally required to tell you that the use of this Software is governed by a License Agreement 😭 read it, bestie, it's iconic.

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and that's a wrap!! this whole page is from the UNIX manual, dated September 1997-1998, and it's filed as c_dspnt2s(3NCARG). go interpolate something gorgeous 🦋✨💖