GSELNT(3NCARG)

✨ GSELNT — bestie, we're picking a transformation ✨

Okay so real talk: this page is from NCAR GRAPHICS, it lives in section 3NCARG of the manual, and it's about GSELNT (short for Select normalization transformation). What does it do? It picks a predefined or user-defined transformation that maps world coordinates ➡️ normalized device coordinates. That's the whole vibe. Slay.

🎀 SYNOPSIS 🎀

CALL GSELNT (TRNUM)

💅 C-BINDING SYNOPSIS 💅

#include <ncarg/gks.h>

void gsel_norm_tran(Gint tran_num);

🌸 DESCRIPTION 🌸

• TRNUM — (Integer, Input) — a normalization transformation number. Bestie, heads up: the number of available transformations is implementation specific. But in the case of NCAR GKS-0A, you get exactly two, and here they are:
  • 0 — selects the identity transformation, where both the window and the viewport have the range of 0. to 1. in both coordinate directions. This one is the default. 💖
  • 1 — selects a normalization transformation where the window and viewport have been defined by calls to GSWN and GSVP. Iconic behavior honestly.

🦋 USAGE 🦋

When a normalization transformation is selected, all world coordinate arguments to GKS functions are transformed by it. Every single one. No cap. 🫶

🔥 ACCESS 🔥

To use GKS routines, load the NCAR GKS-0A library ncarg_gks. That's it, that's the tea. ☕

👑 SEE ALSO 👑

Online: set, gsup, gswn, gqclip, gsel_norm_tran

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

💜 COPYRIGHT 💜

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

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

And that's the whole page, bestie!! 💀✨ This iconic little number is GSELNT(3NCARG) from the UNIX manual, dated March 1993. Obsessed. Periodt. 💅🎀