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  • Of Planes and Plumblines: Map Projections and Differential Leveling in a GNSS-based 3D Geodetic Framework

    Creator:
    Dennis, Michael L.
    Abstract:
    Modern geospatial data are frequently represented in some type of three-dimensional (3D) coordinate system, for example geodetic latitude, longitude, and ellipsoid height (φ, λ, h) derived from Global Navigation Satellite Systems (GNSS). But for engineering and surveying work, φ, λ, h coordinates are usually converted to a topocentric system consisting...
    Resource Type:
    Dissertation
    Full Text:
    GNSS-derived positions, a commonly used approach is to compute N, E, from φ, λ using a map projection

  • Optimizing map projection selection for world maps and web maps

    Creator:
    Šavrič, Bojan
    Abstract:
    The selection process for map projections is a mystery to many mapmakers and GIS users. Map projections ought to be selected based on the map’s geographic extent and the required distortion properties, with the goal of minimizing the distortion of the mapped area. Despite some available selection guidelines, the selection...
    Resource Type:
    Dissertation
    Full Text:
    Optimizing Map Projection Selection for World Maps and Web