GEODESIC — 3D Structure Builder

What it is

Place tetrahedra, octahedra, icosahedra, struts, and hubs in 3D snap-grid space. 3D Structure Builder is a core component of the P31 Labs sovereign cognitive infrastructure stack — built to run offline, deployed to the edge, and designed without dark patterns.

Three.js r183 with OrbitControls for navigation. Snap grid uses integer multiples of 0.5 world units. Rigidity score uses Maxwell's rule extended for 3D: m = 3j − e − 6.

Core features

Place tetrahedra, octahedra, icosahedra, struts, and hubs in 3D snap-grid space

Real-time rigidity scoring: Maxwell count (m = 3j − e − 6) updates on every placement

Challenge system with tier progression: Stable → Strong → Geodesic Master

Export current structure as a JSON scene file for future editing

Color-coded stress map: over-constrained members in red, under-constrained in blue

How to use

1Select a shape from the palette and click to place it on the snap grid

2Watch the rigidity score — add struts to increase it toward the target

3Complete challenges to unlock new shapes and construction tools

Architecture

Three.js r183 with OrbitControls for navigation. Snap grid uses integer multiples of 0.5 world units. Rigidity score uses Maxwell's rule extended for 3D: m = 3j − e − 6.

P31 Labs, Inc. (Georgia nonprofit, EIN 42-1888158) builds open tools for cognitive sovereignty, communication clarity, and family coordination. This page is technical documentation, not medical or legal advice. Mission and support: phosphorus31.org.

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