DistanceActual=DistanceCAD×cos(Latitude)cap D i s t a n c e sub cap A c t u a l end-sub equals cap D i s t a n c e sub cap C cap A cap D end-sub cross cosine open paren cap L a t i t u d e close paren
If you simply copy/paste a Google Maps screenshot, you must scale it manually to ensure accuracy:
Google's API returns highly accurate road centerlines (snapped to GPS traces). However, imagery offsets (e.g., trees blocking the camera angle) can cause a 2-5m shift between the road centerline and the satellite image. Always verify API vector data against the raster imagery.
Use the or Path tool to trace site boundaries or building outlines.
: Use the GEOGRAPHICLOCATION command. Select a Projected Coordinate System (e.g., NAD 83, UTM) appropriate for your region rather than simple Latitude/Longitude to ensure linear units like meters or feet are accurate.
If you need the actual lines (roads, building footprints) rather than just a background image, follow this path: Save your site as a KML/KMZ file.