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2. Blue Marble Geographics - Wikipedia

   en.wikipedia.org/wiki/Blue_Marble_Geographics

   Blue Marble's first software product, the Geographic Calculator, [2] was developed in 1992 and released in 1993. The Geographic Calculator is a coordinate conversion library with a database of coordinate mathematical objects including projections, coordinate systems, datums, ellipsoids, linear and angular units. The tool is primarily used to ...

3. Geospatial PDF - Wikipedia

   en.wikipedia.org/wiki/Geospatial_PDF

   Geospatial PDF is a set of geospatial extensions to the Portable Document Format (PDF) 1.7 specification to include information that relates a region in the document page to a region in physical space — called georeferencing. [1]

4. GeoPDF - Wikipedia

   en.wikipedia.org/wiki/GeoPDF

   GeoPDF products are used to deliver maps and imagery from multiple US government agencies. Quadrangles of The National Map are available from the USGS store in as GeoPDF products and are free to download. The US Army Corps of Engineers distributes GeoPDF maps through the U.S. Army Corps of Engineers Topographic Engineering Center.

5. Well-known text representation of coordinate reference systems

   en.wikipedia.org/wiki/Well-known_text...

   A WKT format is defined to describe the operation methods and parameters used to convert or transform coordinates between two different coordinate reference systems. The WKT 1 and WKT 2 formats are incompatible regarding coordinate operations, because of differences in the modelling. [13]

6. Wikipedia:Obtaining geographic coordinates - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:Obtaining...

   Forward and Reverse Geocoding Service. Web Form or API Available. API is free for 2,500 queries per day, more are paid. Web Form is free for unlimited queries. International Coverage in most countries. Licensing: Great Circle Mapper: Name search: Has geographic coordinates for airports, heliports, and other facilities which have an IATA or ICAO ...

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!