TDLINE(3NCARG)

✨ TDLINE 💫 — it's in the NCAR GRAPHICS manual (3NCARG), bestie 💖

okay so real talk, this is a page from the NCAR GRAPHICS section of the manual, and it's genuinely one of the cutest little routines in the whole TD pack. no cap. let's get into it 🫶

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🌈 NAME 🌈

TDLINE — you hand it the coords of two points floating around in 3-space, and it draws the projection of the line joining them. that's it. that's the whole job. and it ate. 💅

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✨ SYNOPSIS ✨

CALL TDLINE (UCP1, VCP1, WCP1, UCP2, VCP2, WCP2)

like, six args, no drama, she's lowkey iconic for it 🎀

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🦋 C-BINDING SYNOPSIS 🦋

so if you're a C girlie (or a C bestie), you gotta pull in the header first:

#include <ncarg/ncargC.h>

and then the signature is giving:

void c_tdline(float ucp1, float vcp1, float wcp1, float ucp2, float vcp2, float wcp2)

same energy, different syntax, we love a bilingual queen 💜

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🌸 DESCRIPTION 🌸

the arguments of TDLINE are, in order, bestie:

• UCP1, VCP1, and WCP1 — (input expressions of type REAL) — the coordinates of a point in 3-space. one single point. just vibing out there in the third dimension. 🌌
• UCP2, VCP2, and WCP2 — (input expressions of type REAL) — the coordinates of another point in 3-space. a second point. a whole other vibe. and TDLINE draws the line between them (projected, obviously). periodt. 🔥

so basically: two points walk into 3-space and TDLINE is the matchmaker that draws a line between them. not me getting emotional about geometry 😭

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🎀 C-BINDING DESCRIPTION 🎀

ngl the C-binding argument descriptions are literally the same as the FORTRAN argument descriptions. same arguments, same meanings, same everything — just, you know, C-shaped now. no notes. 🧚

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👑 ACCESS 👑

to use TDLINE or c_tdline, you gotta load the NCAR Graphics libraries — and the order matters, so listen up:

1. ncarg
2. ncarg_gks
3. ncarg_c

preferably in that order, okay? don't be chaotic about the linking. it's giving organized. it's giving main character energy. ✨

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🌈 SEE ALSO 🌈

all the online friends, all the TD pack siblings — go say hi:

• tdclrs
• tdctri
• tddtri
• tdgeti
• tdgetr
• tdgrds
• tdgrid
• tdgtrs
• tdinit
• tditri
• tdlbla
• tdlbls
• tdlnpa
• tdmtri
• tdotri
• tdpack
• tdpack_params
• tdpara
• tdplch
• tdprpa
• tdprpi
• tdprpt
• tdseti
• tdsetr
• tdsort
• tdstri
• tdstrs

like a whole group chat honestly 💬💖

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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.

yes bestie, it's real, it's legal, it's binding — respect the license or the software will simply not respect you back 🙈

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okay so that's the whole page, and yes, this was originally a UNIX manpage from July 1997, filed under TDLINE(3NCARG) — and now you know it, so go draw some lines in 3-space and slay 💅🦋⭐ bye bestie, ily, drink water 🌸