projection Prototype
First observation Use PROJECT to reveal mapping rays. Use INFINITY to watch northern points stretch far across the plane.


OBSERVATION GUIDE

Touchpoints for Observation

Observe sphere points, grid lines, and circles stretching onto a plane toward infinity.

  • Use projection lines, infinity strength, and rotation to compare sphere and plane correspondence.
  • The equator stays calmer than the north-pole area.
  • Circles on the sphere can become circles or line-like shapes on the plane.

This is a visual projection model, not a formal geometry or analysis tool.

Runs inside the browser with no upload and no registration.

SYSTEM NOTE

x = X / (1 - Z), y = Y / (1 - Z). Points near the north pole stretch toward infinity.

OBSERVATION POLICY

This lab runs in your browser. No image, pointer trace, or input is uploaded by this prototype.