Fitgrid(3NCARG)

💖 NAME 💖

fitgrid — interpolate 1d and 2d data

okay bestie, welcome to fitgrid, the NCAR Graphics package that literally does interpolation for you and honestly? it's giving main character energy ✨

🌸 DESCRIPTION 🌸

Fitgrid is a whole package for interpolating one dimensional and two dimensional data. no cap. here's the vibe of what it can do for you:

1. Interpolating single-valued functions in one dimension.
2. Interpolating parametric curves in the plane.
3. Computing an interpolatory surface through a rectangular grid of functional values.
4. Interpolating periodic functions in one dimension.
5. Finding integrals and derivatives of interpolated functions.

like… integrals AND derivatives?? she does it all fr fr 💅

✨ SYNOPSIS ✨

🔥 FORTRAN single precision

CURV1   -  does set-up for CURV2.
CURV2   -  1D interpolation for non-periodic functions.
CURVD   -  derivatives for 1D functions.
CURVI   -  integrals for 1D functions.
CURVP1  -  does set-up for CURVP2 .
CURVP2  -  1D interpolation for periodic functions.
CURVPI  -  integrals for periodic functions.
CURVS   -  does smoothing and set-up for CURV2.
CURVPS  -  does smoothing for periodic functions.
KURV1   -  does set-up for KURV2.
KURV2   -  interpolation for parametric curves.
KURVD   -  derivatives for parametric curves.
KURVP1  -  set-up for KURVP2.
KURVP2  -  interpolation for closed parametric curves.
KURVPD  -  derivatives for closed parametric curves.
SURF1   -  set-up for SURF2.
SURF2   -  2D interpolation for gridded data.

bestie the setup-then-do-the-thing pattern is iconic — CURV1 sets up, CURV2 cooks 🍓

💜 C single precision:

c_ftcurv    -  1D interpolation for non-periodic functions.
c_ftcurvd   -  derivatives for 1D functions.
c_ftcurvi   -  integrals for 1D functions.
c_ftcurvp   -  1D interpolation for periodic functions.
c_ftcurvpi  -  integrals for periodic functions.
c_ftcurvs   -  does smoothing for non-periodic functions.
c_ftcurvps  -  does smoothing for periodic functions.
c_ftkurv    -  interpolation for parametric curves.
c_ftkurvp   -  interpolation for closed parametric curves.
c_ftkurvd   -  derivatives for parametric curves.
c_ftkurvpd  -  interpolation for closed parametric curves.
c_ftsurf    -  2D interpolation for rectangular data.
c_ftseti    -  set values for int parameters.
c_ftgeti    -  get values for int parameters.
c_ftsetr    -  set values for float parameters.
c_ftgetr    -  get values for float parameters.
c_ftsetc    -  set values for string parameters.
c_ftgetc    -  get values for string parameters.
c_ftsetfa   -  set values for float arrays.
c_ftgetfa_size  -  get array size of float array.
c_ftgetfa_data  -  get float array data.

the c_ftset* / c_ftget* gang? the way that they set and get your int, float and string params… obsessed. and c_ftgetfa_size + c_ftgetfa_data are your float-array besties 🫶

🎀 ACCESS 🎀

to use fitgrid entries, load the NCAR Graphics library ngmath. that's it. that's the whole gatekeep. 🔑

🦋 SEE ALSO 🦋

• Individual entries, fitgrid_params

Complete documentation for fitgrid is available at URL http://ngwww.ucar.edu/ngdoc/ng/ngmath/fitgrid/fithome.html

👑 COPYRIGHT 👑

Copyright (C) 2000 University Corporation for Atmospheric Research

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

💀 not me reminding you that the use of this Software is governed by a License Agreement — read it bestie, fr fr.

and that's the whole page, no crumbs left 🌈 this was the Fitgrid entry from the NCAR GRAPHICS manual, straight outta March 1998, and yes the manpage family is literally just called UNIX. slay, bye 💖🧚✨