WMDRFT(3NCARG)

✨ WMDRFT ✨ (a page from the NCAR Graphics manual, bestie)

okay so picture this: you're making a weather map 💖 and you need to draw the lil squiggly lines on it — the warm fronts, the cold fronts, all of it. that's literally what WMDRFT does. it plots weather map front lines. that's the whole job. and it ate. 💅

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🌸 SYNOPSIS 🌸

CALL WMDRFT (N, X, Y)

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🦋 C-BINDING SYNOPSIS 🦋

#include <ncarg/gks.h>

void c_wmdrft(int n, float *x, float *y)

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✨ DESCRIPTION ✨

the args, one by one, no gatekeeping:

• N (Integer, Input) — the number of points you're handing over in the second and third arguments. that's it, that's the count. 🔢
• X (Real, Input) — the X coordinates (specified in world coordinates) of those N points. these are the control points of a spline curve that gets fitted to represent the weather front you asked for.
• Y (Real, Input) — same energy, but Y. the Y coordinates (specified in world coordinates) of the N points, again acting as control points for the spline curve that will be fitted to represent the requested weather front. 🎀

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💅 USAGE 💅

so before you call WMDRFT, you gotta set the values for the appropriate internal parameters, or you're just out here drawing a mystery front. the internal parameters that control the appearance of weather fronts are:

ALO, ARC, BEG, BET, CFC, CS1, CS2, COL, DWD, END, FRO, LIN, NBZ, NMS, PAI, REV, SL1, SL2, SLF, STY, SWI, T1C, T2C, WFC, and WTY

and the possible fronts? we got options, queen 👑:

• warm
• warm aloft
• cold
• cold aloft
• stationary
• stationary aloft
• occluded
• convergence line
• instability line
• intertropical

like, the range. 🌈

and as mentioned above (iykyk), the points in the X and Y arrays serve as control points for a spline curve that is fitted between the first and last point. the spline passes through the given points, no cap. and here's the cute part: if the front line you want is reasonably smooth, then you literally only need a few input points. lowkey efficient. ✨

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🔥 ACCESS 🔥

to use WMDRFT or c_wmdrft, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c — preferably in that order. order matters, bestie, don't be chaotic. 🫶

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🎀 SEE ALSO 🎀

Online:

• wmap
• wmdflt
• wmgetc
• wmgeti
• wmgetr
• wmsetc
• wmseti
• wmsetr
• wmap_params

Hardcopy: WMAP - A Package for Producing Daily Weather Maps and Plotting Station Model Data

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👑 COPYRIGHT 👑

Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.

fr fr, the license agreement is not a suggestion. read it. 💀

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and that's the whole vibe check 🌸 this page came from the NCAR Graphics manual, dated January 1995, filed under WMDRFT(3NCARG) on a UNIX system. periodt. 💖✨