PRIVACY & LIMITATIONS

Coordinates stay local. No location or map service is called.

Coordinates, date, local time, UTC offset, facade direction, and window/overhang dimensions are calculated only on the current page. ShadeTrace does not request device location, load maps or satellite imagery, or upload building models.

Ideal geometry comparison, not building-performance proof

The tool uses NOAA's public approximation for solar elevation and azimuth, converts facade-relative sun angle into a vertical profile angle, and estimates shadow drop and side shift from a horizontal overhang, sampled every 30 minutes. Daylight saving must be included manually in the UTC offset. It does not account for nearby buildings, trees, terrain, frames, glazing transmittance, diffuse sky, reflections, thermal load, glare, structure, wind/snow load, historical time zones, or local energy codes.

Coordinates and orientation may reveal a project location

Refreshing or closing discards current inputs. The CSV filename includes the date, and its content includes solar position, facade-relative angle, shade percentage, shadow drop, and side shift; the report studio and optional local checkpoints read the visible summary. Exact coordinates, orientation, and dimensions for a home or unreleased project may be sensitive, so review or generalize them before sharing.

Advertising and local preferences

This page uses Google AdSense Auto Ads. Google may use cookies or similar technologies under its policies. .miluland.com domain cookies sync language, theme, high contrast, a six-item recent-tools list, and up to 16 favorite tool IDs across MiluLand sites. These values never contain inputs, files, or results; the current site also keeps a local compatibility copy.

Local report studio

The report studio reads only the workbench’s currently visible result summary for local preview, Markdown copy, JSON download, printing, and a SHA-256 fingerprint. It never reads input controls or original files and is not persisted unless you choose to download it.

Optional local checkpoints

Only when you explicitly choose Save does the tool write the visible result summary, time, and optional short label to this site’s browser storage, up to five entries. Imported files and input-control contents are never stored; you can export, restore same-tool checkpoints, or clear them at any time. Imports are limited to 128KB and validate the tool, timestamp, summary, and label of up to 80 characters.