Coordinate System Setup

To maintain a geographic reference (also called a geo-reference), HEC-FIA uses a user-selected coordinate system. This allows HEC-FIA to establish x- and y-coordinates in WCS for each point on the layer, regardless of their actual projected coordinate system. The x-coordinate is referred to as "easting" and the y-coordinate is referred to as "northing" following customary use in surveying and mapping. This appendix focuses on how to setup and edit different coordinate systems.