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  2. List of satellite map images with missing or unclear data

    en.wikipedia.org/wiki/List_of_satellite_map...

    This is a list of satellite map images with missing or unclear data. Some locations on free, publicly viewable satellite map services have such issues due to having been intentionally digitally obscured or blurred for various reasons of this. [ 1 ]

  3. Google Earth - Wikipedia

    en.wikipedia.org/wiki/Google_Earth

    Google Earth is a web and computer program that renders a 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposing satellite images, aerial photography , and GIS data onto a 3D globe , allowing users to see cities and landscapes from various angles.

  4. Web Mercator projection - Wikipedia

    en.wikipedia.org/wiki/Web_Mercator_projection

    Formulas for the Web Mercator are fundamentally the same as for the standard spherical Mercator, but before applying zoom, the "world coordinates" are adjusted such that the upper left corner is (0, 0) and the lower right corner is ( , ): [7] = ⌊ (+) ⌋ = ⌊ (⁡ [⁡ (+)]) ⌋ where is the longitude in radians and is geodetic latitude in radians.

  5. Brian McClendon - Wikipedia

    en.wikipedia.org/wiki/Brian_McClendon

    Brian A McClendon (born 1964) is an American software executive, engineer, and inventor. [1] He was a co-founder and angel investor in Keyhole, Inc., a geospatial data visualization company that was purchased by Google in 2004 [2] [3] to produce Google Earth.

  6. Virtual globe - Wikipedia

    en.wikipedia.org/wiki/Virtual_globe

    In the metaverse in Snow Crash, there is a piece of software called Earth made by the Central Intelligence Corporation (CIC). The CIC uses their virtual globe as a user interface for keeping track of all their geospatial data, including maps, architectural plans, weather data, and data from real-time satellite surveillance.

  7. Google Maps - Wikipedia

    en.wikipedia.org/wiki/Google_Maps

    Google Maps' location tracking is regarded by some as a threat to users' privacy, with Dylan Tweney of VentureBeat writing in August 2014 that "Google is probably logging your location, step by step, via Google Maps", and linked users to Google's location history map, which "lets you see the path you've traced for any given day that your ...

  8. General Perspective projection - Wikipedia

    en.wikipedia.org/wiki/General_Perspective_projection

    For example, Google Earth and NASA World Wind show the globe as it appears from space. These applications permit a wide variety of interactive pan and zoom operations, including fly-through simulations, mimicking pictures or movies taken with a hand-held camera from an airplane or spacecraft.

  9. Tiled web map - Wikipedia

    en.wikipedia.org/wiki/Tiled_web_map

    At the outer most zoom level, 0, the entire world can be rendered in a single map tile. Each zoom level doubles in both dimensions, so a single tile is replaced by 4 tiles when zooming in. This means that about 22 zoom levels are sufficient for most practical purposes. The Web Mercator projection is used, with latitude limits of around 85 degrees.