PLVPOR(3plplot)

💖 PLVPOR — like, the viewport glow-up page 💖

okay bestie, welcome to the PLplot API corner of the internet, where today's main character is plvpor, a little function with big "set up my whole viewport" energy. ✨

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🌸 SYNOPSIS 🌸

plvpor(xmin, xmax, ymin, ymax)

That's it. Four numbers, one vibe check passed. 🫶

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🎀 DESCRIPTION 🎀

So plvpor is the device-independent routine for setting up the viewport — meaning it does not care what device you're on, it just slays the same way everywhere. 💅

What it actually does: it defines the viewport using normalized subpage coordinates, which run from 0.0 to 1.0 (left to right, and bottom to top) along each edge of the current subpage. So like, 0.0 is the far edge and 1.0 is the other far edge, and everything in between is your little canvas kingdom 👑

ngl, if you want a viewport of a definite size instead of this normalized-subpage situation, use the alternate routine plsvpa(3plplot). That's literally what it's for. 💀

Redacted form: plvpor(xmin, xmax, ymin, ymax)

Where you'll see it living its truth: this function is used in examples 2, 6-8, 10, 11, 15, 16, 18, 21, 23, 24, 26, 27, and 31. Not me keeping track of every single one... okay actually yes me, I did. 😭

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✨ ARGUMENTS ✨

All four are PLFLT(3plplot) and all four are input, because you're the one telling it what's up.

• xmin (PLFLT(3plplot), input) — the normalized subpage coordinate of the left-hand edge of the viewport. 🦋
• xmax (PLFLT(3plplot), input) — the normalized subpage coordinate of the right-hand edge of the viewport. 🦋
• ymin (PLFLT(3plplot), input) — the normalized subpage coordinate of the bottom edge of the viewport. 🌈
• ymax (PLFLT(3plplot), input) — the normalized subpage coordinate of the top edge of the viewport. 🌈

So yeah, xmin and xmax are your left/right besties, ymin and ymax are your bottom/top besties, and together they form a rectangle. Geometry ate. 🔥

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👑 AUTHORS 👑

okay this one's a group project that genuinely worked: Many developers (who are credited at http://plplot.sourceforge.net/credits.php) have contributed to PLplot over its long history. 🫶 Literally so many people, so much history, so iconic.

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💜 SEE ALSO 💜

• PLplot documentation at http://plplot.sourceforge.net/documentation.php — go read it, iykyk 🧚

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and that's the whole page, bestie!! 🍓 this was the PLplot API PLVPOR(3plplot) manual page, dated August, 2026 — so yeah, mention it, cite it, frame it, put it on the fridge 💖✨🎀