GIS Fundamentals: A First Text on Geographic Information Systems |
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accuracy aerial photographs analysis angle applied assigned attribute data boundaries buffer calculate camera cartographic model cell values combined control points coordinate system data layer data models database datum DBMS defined density described developable surface developed differential GPS digital data distance distortion Earth elevation data ellipsoid equations error ESRI example Figure film forest functions Geographical Information Systems geoid geometric global GPS receiver grid hardcopy identify Ikonos input interpolation intersection land loca map projection measurements ments metadata meters methods node North objects operations output overlay PDOP Plane Plane coordinate system polygons position position fixes precise range raster cell raster data set recorded Remote Sensing represented resolution RMSE road sample points satellite images scale scanners semivariance slope soil spatial data specified standard station surface surveys terrain tion topological transformation typically USGS variable vertical zone