GQCHUP(3NCARG)

πŸ“¦ version 6.6.2, in epel 9, fedora 43, fedora 44

πŸ’– GQCHUP β€” bestie, it's literally "Inquire character up vector" πŸ’–

okay so this is a page from the NCAR GRAPHICS manual, section 3NCARG, and it's about a lil Fortran routine called GQCHUP. She's here to retrieve the current value of the character up vector. that's it. that's her whole job. and she eats every time πŸ’…


✨ SYNOPSIS ✨

like, the whole vibe in one line:

CALL GQCHUP (ERRIND, CHUX, CHUY)

πŸ¦‹ C-BINDING SYNOPSIS πŸ¦‹

for the C girlies (iykyk), same energy, different font:

#include <ncarg/gks.h>

void ginq_char_up_vec(Gint *err_ind, Gvec *char_up_vec);

🌸 DESCRIPTION 🌸

so here's the tea on each argument, no gatekeeping:

  • ERRIND β€” (Integer, Output) β€” if the inquired values can't be handed back correctly, you get a non-zero error indicator dropped into ERRIND. otherwise? a big fat zero, slay. for the full lore on what the error indicators actually mean, go consult the "User's Guide for NCAR GKS-0A Graphics" 🫢
  • CHUX β€” (Real, Output) β€” gives you the X world coordinate of the up vector.
  • CHUY β€” (Real, Output) β€” gives you the Y world coordinate of the up vector.

πŸ‘‘ USAGE πŸ‘‘

ok so the up vector? she's the vector formed by those two coordinate points: (0.,0.) and (CHUX,CHUY). iconic geometry moment.

if you want the full backstory on what the character up vector even means, go peek at GSCHUP β€” she explains it all, periodt.


πŸ”₯ ACCESS πŸ”₯

to use the GKS routines, you gotta load the NCAR GKS-0A library: ncarg_gks. that's the entry fee, bestie, no cap.


🌈 SEE ALSO 🌈

Online πŸ“±

gtx, gstxp, gstxal, gstxfp, gschh, gschsp, gschup, gschxp, gscr, gstxci, gqtxp, gqtxal, gqtxfp, gqchh, gqchsp, gqchxp, plotchar, ginq_char_up_vec

Hardcopy πŸ“š

User's Guide for NCAR GKS-0A Graphics; NCAR Graphics Fundamentals, UNIX Version


Copyright (C) 1987-2009 University Corporation for Atmospheric Research

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

not me making you read the legal bit but like. it's important. read it. πŸŽ€

ok that's the whole page, you're officially educated πŸ’– this was the GQCHUP(3NCARG) page from the UNIX manual, dated March 1993 β€” yeah she's vintage, she's a classic, she's serving archive realness πŸ¦‹βœ¨ mwah, go forth and inquire your character up vector, bestie πŸ«ΆπŸ’…

πŸ“¦ where this page comes from