A newly-created project has only a basic set of X-Y-Z coordinates, and the coordinate system used by the project is determined by the data imported to the project. It is not necessary to specify what coordinate system is used; however, it is necessary to ensure that data you import into the project uses the same coordinate system.
If you are importing data that uses different coordinate systems, you will need to process the data outside of Leapfrog Geo so that it is using the same coordinate system.
Often the best way to set the coordinates for the project as a whole is to import a map or aerial photo. Adding georeference data to a map will set the location of the map in three-dimensional space and set the coordinates for the project. See Importing a Map or Image for more information.
An important consideration in defining the project space is setting the clipping boundary. See The Clipping Boundary.
It is not necessary to define a topography to model in Leapfrog Geo, but a defined topography can be used as an upper boundary for all models built in the project. See Defining a Topography.
Part of creating many objects in Leapfrog Geo is defining the basic rectangular boundary that defines the object’s extents. See Object Extents.