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Question asked by CADEngr2014 on Mar 25, 2017
Latest reply on Mar 30, 2017 by MKennedy-esristaff



I am using Arc Map 10.3.  When I change coordinate systems by selecting Data Management Tools->Projections and Transformations->Project-> fill-out dialogs for XY and Z coordinate to change from State Plane Nad83 Us Feet, NAVD88 to a Geographic WGS84, WGS Ellipsoid; I believe ArcMap is performing both a transformation to a different horizontal datum and a projection from a flat grid based state plane system to an elliptical geographic system.  Is my understanding correct or am I missing something.