GLUTSTROKEWIDTH(3)

💖 GLUTSTROKEWIDTH(3) 💖

okay bestie, gather round, because we're talking about glutStrokeWidth from the OpenGLUT - fonts library. yes it's a whole manual page for one lil function and yes it absolutely ate. ✨

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🌸 NAME 🌸

glutStrokeWidth — tells you the width, in pixels, of a character in a font you picked. that's it, that's the job. 💅

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📚 LIBRARY 📚

OpenGLUT - fonts 🎀

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✨ SYNOPSIS ✨

#include <openglut.h>

float
glutStrokeWidth(void *fontID, int character);

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🫶 PARAMETERS 🫶

• fontID — a GLUT stroked font identifier. like, which font are we even talking about here. 👑
• character — a character code. the actual glyph you're curious about. 🔤

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💖 DESCRIPTION 💖

so basically: this function reports how far the model space origin will advance if you output this character in the font named by fontID. lowkey important for spacing things out, iykyk. 🦋

heads up though — not all letters will use their full width, especially in fixed-width fonts. so like, don't assume every glyph is maxing out its box, because it's not. 🙈

and if character is out of range, or if fontID is invalid? you get 0 back. zero. nothing. go home. 💀

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😭 CAVEATS 😭

okay this is the part where it gets messy, buckle up. 🎢

Historically, this function has been described as returning a pixel-width, but it was actually implemented to return the width in model-space units, rounded to integers. GLUT never resolved this. freeglut duplicated the confusion. it's giving generational trauma fr fr. 💀

OpenGLUT has decided to stay in model-space and to return the unrounded floating point value. iconic behaviour honestly. ✨

also: an unreleased GLUT 3.8 was supposed to include glutStrokeWidthf() and glutStrokeLengthf() — note the *f suffixes — but that is not in wide use. so like, don't count on it bestie. 🙈

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📝 TODO 📝

Determine if any glyphs are either wider than this function, or if they render outside of the bounding box given by (0,-descent) by (width,height-descent). 👀

so yeah, that's an open question. someone go figure it out. not me though. 💅

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👀 SEE ALSO 👀

• glutStrokeCharacter(3)
• glutStrokeLength(3)
• glutStrokeHeight(glutBitmapWidth) 3

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💡 reminder: this page is UNDATED, and the source/version line says UNTITLED(). so it's a mystery page. an enigma. main character energy with no backstory. 🕵️♀️

anyway ily, go measure some glyphs, and remember: model-space units, not pixels. periodt. 💖✨🎀🦋🌸💅🫶