Trac­ing over ae­rial im­agery

OpenSource For You - - OVERVIEW FOR U & ME -

This method is for crude map­ping in places where ac­cu­racy is not an im­me­di­ate con­cern. You can sim­ply bring up the ae­rial map from Bing (yes, Mi­crosoft Bing!) as a back­ground im­age to trace struc­tures onto the lSM layer.

Im­por­tant: Trac­ing over ae­rial im­agery is very er­ror-prone. Never at­tempt to cor­rect ex­ist­ing map data to match with ae­rial im­agery. Satel­lite im­ages have par­al­lax er­rors, and are

Newspapers in English

Newspapers from India

© PressReader. All rights reserved.