Inputs are resolved before styling
ANGIE starts with a moment and observer location, resolves the time context, and computes the sky state before decorative decisions are applied. That keeps astronomy separate from typography, frames, labels, and product-specific layout.
Observer geometry matters
Astronomical positions are useful in several coordinate systems. For a person standing on Earth, altitude and azimuth are especially intuitive because they describe where an object sits relative to the local horizon. Those values depend on time and the observer’s latitude and longitude.
Sources: U.S. Naval Observatory — Computing Altitude and Azimuth · NASA/JPL — Horizons System Manual
A render keeps provenance
Spatial Press treats the render as a traceable computational artifact. Inputs, source versions, and derived geometry should be distinguishable from later visual styling so a chart can be audited or regenerated without losing its origin.