c_nnpntinits(3NCARG)

💖 c_nnpntinits — bestie edition 💖

ok so this is a page from the NCAR GRAPHICS manual, section 3NCARG, and today we're talking about c_nnpntinits, which is literally the "enter single point mode" girlie. she's giving setup era, she's giving initialization, she's the friend who gets everything ready before the actual party starts. 🎀

✨ NAME ✨

c_nnpntinits — enter single point mode 💅

🌸 FUNCTION PROTOTYPE 🌸

void c_nnpntinits(int, float [], float [], float []);

no cap, that's the signature. write it down. 🫶

🦋 SYNOPSIS 🦋

void c_nnpntinits (npnts, x, y, z);

⭐ DESCRIPTION ⭐

ok so here's the cast of characters, and you will be meeting all of them:

• npnts — the number of input data points. and listen, she has a rule: npnts > 2. so 3 or more, bestie, we do not play with 2. 🚫
• x — an array of size npnts containing the X coordinates of the input data points.
• y — an array of size npnts containing the Y coordinates of the input data points.
• z — an array of size npnts containing the functional values of the input data points. translation: z[n] is the value of the input function at coordinate (x[n],y[n]), for 0 <= n < npnts. the way that z is just vibing at every point... iconic. ✨

🔥 USAGE 🔥

you call this function when you wanna interpolate at individual points. it's an initialization routine, meaning it sets up some internal variables and does the initial triangulation — the whole backstage prep moment, main character energy behind the scenes. 💅

to actually do the interpolation, use the function c_nnpnts. and to terminate single point mode, use the function c_nnpntend. like, you gotta know when to leave the party. 🎀

🌈 ACCESS 🌈

to use c_nnpntinits, load the NCAR Graphics library ngmath. that's the one. no substitutions. 🫶

👑 SEE ALSO 👑

• natgrid
• natgrid_params
• c_natgrids
• c_nnpnts
• c_nnpntend

also, complete documentation for Natgrid is available at URL http://ngwww.ucar.edu/ngdoc/ng/ngmath/natgrid/nnhome.html — go read it, bestie, it's free education. 📚

🎀 COPYRIGHT 🎀

Copyright (C) 2000 University Corporation for Atmospheric Research

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

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⚠️ okay real talk for one sec: this is a legally binding license situation, not a vibe. respect the License Agreement, bestie. fr fr. 🙈

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and that's the whole page, no notes, periodt. this one came out of the UNIX manual, March 1997-1998, filed under c_nnpntinits(3NCARG) — so yeah, she's vintage, she's that girl, she ate and left absolutely no crumbs. 🧚💜