All demonstrationsSOLAR GEOMETRY / IMAGE MEASUREMENTS

Does the shadow fit the Sun?

Compare a measured shadow with a calculated solar direction after mapping image pixels onto a declared ground plane.

Concept artwork · not calculation evidence

01 / UNDERSTAND THE METHOD

See what the tool does.

ILLUSTRATION · NOT A CALCULATION

INTERACTIVE 3D / METHOD STUDYExplore the method in space.

Preparing the 3D exhibit…

Explore the cycleIllustration

A teaching illustration. Run the tool below to obtain a native calculation.Drag to inspect · arrow keys move the camera · no MCP call

02 / ASK THE ACTUAL TOOL

Date and time (UTC)Latitude (degrees)Longitude (degrees)Pixel sigmaTime sigma minutesRandom seedSample count

Complete tool arguments

Arrays, coordinates and nested contracts remain editable here. Units and limits are checked by the real tool.

Runs only when you press the button. Input edits discard the previous displayed result. Public compute limits apply.

KNOW WHAT THE RESULT MEANS

A horizontal ground plane, trustworthy reference points and a relevant solar-lighting model are required.
Lens distortion, terrain, multiple lights and uncertain metadata can invalidate the comparison.
Compatibility does not authenticate an image; contradiction asks for investigation of both measurements and assumptions.