Home▸Geometry▸Geodesic Dome Structure (2D)

Geodesic Dome Structure Simulator (2D)

Interactive 2D geodesic-dome builder: subdivide an icosahedron into a triangulated dome, dial the frequency up or down, and watch the real strut-length variety and triangle count change live.

Geometry2DEasy60 FPS📱 Mobile-adapted⇄ 3D version

This 2D companion builds a real geodesic dome from scratch: it starts with an icosahedron, subdivides each triangular face into a grid at the frequency you choose, and projects every new point back onto a sphere before cutting away everything below ground level to leave a dome. Raise the frequency slider to watch the triangle and strut counts climb, drag the canvas to spin the structure, and switch on "Colour by length" to see the small family of distinct strut lengths a real geodesic dome actually needs — the direct, countable consequence of forcing a flat triangular grid onto a curved sphere.

⚙ Under the hood

Subdivide an icosahedron into a triangulated geodesic dome at any frequency and watch the triangle count, strut count and real strut-length variety update live.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install