phm2helix(1)

💖 phm2helix(1) — the Engineering girlies' manual 💖

okay so bestie, you found your way into phm2helix(1), a page from the Engineering manual section, and honestly? it's giving "niche but iconic." let's get into it. 🦋

✨ NAME ✨

phm2helix — calculate projections through a time varying phantom object. literally that's the whole gig. 🎀

🌸 SYNOPSIS 🌸

phm2helix outfile ndet nview phmprog [OPTIONS]

💜 DESCRIPTION 💜

phm2pj calculates projections through a time varying phantom object. no cap, that's what it says, that's what it does. 💅

not me noticing the page says phm2pj in the description while the command is phm2helix… anyway, we're reporting it exactly as written, periodt. 🙈

👑 OPTIONS 👑

• --outfile — name of output file for projections. this is where your little projections go to live. 🏠
• --ndet — number of detectors. count 'em, bestie. 🔢
• --nview — number of rotated views. more views = more drama. 🌈
• --phmfile — temporary phantom file name. and it comes in ✨flavors✨:
  • herman — Herman head phantom
  • herman-b — Herman head phantom (Bordered)
  • shepp-logan — Shepp-Logan head phantom
  • shepp-logan-b — Shepp-Logan head phantom (Bordered)
  • unitpulse — Unit pulse phantom
• --phmfile name — get Phantom from phantom file. yes she's on the list twice, she contains multitudes. 💖
• --desc — description of raysum
• --nray — number of rays per detector (default = 1)
• --rotangle — degrees to rotate view through (multiple of PI) (default = 1)
• --geometry — geometry of scanning, choose your fighter:
  • parallel — parallel scan beams (default)
  • equilinear — equilinear divergent scan beams
  • equiangular — equiangular divergent scan beams
• --focal-length — focal length ratio (ratio to radius of phantom) (default = 1)
• --field-of-view — field of view (ratio to diameter of phantom square) (default = 1)
• --trace — trace level to use, one of:
  • none — no tracing (default)
  • console — trace text level
• --verbose — verbose mode. she talks. 🗣️
• --debug — debug mode. for when things are lowkey cursed. 💀
• --version — print version
• --help — print a terse help message

🫶 AUTHORS 🫶

Ian Kay, Ph.D. and Kevin Rosenberg, M.D. <kevin@ctsim.org> — icons, honestly. 👑

🕰️ HISTORY 🕰️

CTSim was begun in 1983 using MS-DOS and an EGA display adapter. In 1999 it was ported to GNU/Linux and later ported to Microsoft Windows. the way this software has been alive longer than most of us… main character energy fr fr. 🌟

🧚 SEE ALSO 🧚

ctsim(1) ctsimtext(1) if1(1) if2(1) ifexport(1) ifinfo(1) linogram(1) phm2if(1) phm2pj(1) pj2if(1) pjHinterp(1) pjinfo(1) pjrec(1)

go read those too, bestie, the lore runs deep. 💜

mwah 💋 this page lives in the Engineering manual as phm2helix(1), brought to you by Kevin Rosenberg and Ian Kay — that's the whole sign-off, no extra deets, so we're keeping it cute and keeping it accurate. byeee 🎀✨