PLOTQUAD(1)

📦 version 0.98, in debian bookworm, debian trixie, fedora 43, fedora 44, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

✨ PLOTQUAD 💅

okay bestie, so plotquad is from astrometry.net and it lives in section 1 of the manual (that's the "run it in your shell" section, iykyk). and what does it do?? it draws polygons over images. that's it. that's the whole vibe. you got quads, you got an image, you want polygons ON TOP of that image. slay. 🎀

🌸 SYNOPSIS 🌸

plotquad [options] quads  > output.png

so you feed it some quads, it spits the result out to stdout, and you redirect that into output.png. iconic behavior honestly. 🦋

💖 OPTIONS 💖

  • -I file — the input image you're plotting over. and it's gotta be in PPM format. (unless you read the next one, bestie 👀)
  • -p — plot twist!! your input image is actually PNG format, not PPM. tell it that with this flag.
  • -P — and if you want your output to be PPM instead of PNG, this is your girl. 💅
  • -C color — the color you're plotting in. default is white. your options are literally: darkred, red, darkgreen, green, blue, verydarkblue, white, black, cyan, magenta, yellow, brightred, skyblue, orange, gray, darkgray. pick your fighter. 🌈
  • -b color — draws in a color behind each line. like a little halo situation. cute.
  • -c — also plots a circle at each vertex. every single one. no skips. ⭐
  • -W width — width of the output image.
  • -H height — height of the output image.
  • -w width — width of the lines being drawn. default: 5.
  • -R — read the quads from stdin instead of wherever else. 🫶
  • -o opacity — the opacity. yes that's the whole description, we're keeping it real.
  • -d dim — the dimension of "quad". that's what it says!!
  • -s scale — scales the quad coordinates before plotting. so like, do the math first, then draw.
  • -m file — get the quad from a match file. OR you can just hand it coordinates like x1 y1 x2 y2 x3 y3 x4 y4 [...]. your choice, main character. 💜

👑 AUTHOR 👑

the Astrometry.net team, obviously. principal investigators are David W. Hogg (NYU) and Dustin Lang (CMU). legends, fr fr. 🔥

🦋 SEE ALSO 🦋

http://astrometry.net — go there. that's the whole reference. no cap.

and that's the page, bestie!! this was version 0.56, dated July 2015, straight from the astrometry.net source. go draw some polygons, you absolute icon 💖✨🌸

📦 where this page comes from