For Hobbyists & Makers · Viewshed
Viewshed for a contour map
Built for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker. Simulate a contour map live below — adjust the inputs and watch it respond, right in your browser.
Viewshed / Line of SightLive
what can you see from here?
Controls
Presets
A viewshed marks every point visible from an observer, hidden behind intervening ridges. Scanning outward, a point is seen only if its angle above the horizontal exceeds every closer obstacle — so terrain shadows fall behind hills. Raising the observer reveals far more. It is essential for siting cell towers, wind turbines, scenic overlooks, and military positions.
Data Inspector
Visible cells0
Coverage0%
Observer height10 m
Governing equation
Reading this result: At 10 m the observer sees over closer bumps but taller ridges still cast blind spots — coverage lands near 0%.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
More with Viewshed
Frequently asked questions
- Is this good for hobbyists & makers?
- Yes — this version of "Viewshed for a contour map" is framed for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.