topic_cost_surface(1)

💖 NAME 💖

topic_cost_surface — a whole vibe of a topic page straight outta the GRASS GIS User's Manual. Bestie, this is the roundup of every GRASS tool that does cost surface stuff, and there are exactly two of them, and they're both iconic. 👑

---

✨ TOPIC: COST SURFACE ✨

Okay so listen. "Cost surface" is the whole game of how expensive is it to get from here to there, and GRASS has two absolute main characters for it. Say hi:

• r.cost — creates a raster map showing the cumulative cost of moving between different geographic locations on an input raster map whose cell category values represent cost. That's the one. That's the classic. 🫶
• r.walk — creates a raster map showing the anisotropic cumulative cost of moving between different geographic locations on an input raster map whose cell category values represent cost. Notice the glow-up: anisotropic, meaning it lowkey cares which direction you're walking, not just how far. 🥾✨

Not me pointing out that these two descriptions are almost the same sentence except for one very important word. r.walk said "let me make it directional" and honestly? Ate. 💅

🔍 SEE ALSO 🔍

See also the corresponding keyword cost surface for additional references. Fr fr, if you want more, that keyword is your girl. 💫

🧭 INDEXES 🧭

Go snoop around, the navigation is giving library energy:

• Main index
• Topics index
• Keywords index
• Graphical index
• Full index

---

📜 COPYRIGHT 📜

© 2003-2025 GRASS Development Team, GRASS GIS 8.4.2 Reference Manual.

---

And that's the whole page, bestie — no cap. 🌸 This was GRASS 8.4.2, topic_cost_surface(1), and every last drop of it belongs to the GRASS Development Team, © 2003-2025, from the GRASS GIS 8.4.2 Reference Manual. Stay cost-efficient out there. 🎀💜🦋