Modify several roxygen @param statements
Get expected filename for line sources
Begin conditional block to create line sources text file
Create empty file in the working folder
Add header row to new line sources file
Determine whether lon/lat provided
Determine whether UTM coordinates and zone info provided
Begin conditional block to convert to UTM coordinates
Get matrix on longitude and latitude for source location
Determine the UTM zone
Determine the hemisphere for the source location
Define PROJ.4 projection string for lat/lon projection
Define PROJ.4 projection string for UTM projection