Earth Plot uses the following libraries:
See also EarthPlot for Windows
Earth Plot for Mac OS X Release History 2017-01-12: Code cleaning and improvements to shared SDL2 code. 2017-01-11: Added ability to load multiple TLEs on start up. 2016-12-18: Updated Mac version with latest features. 2016-12-16: Wrote an ini file library in ANSI C. Save window size and position to ini file. Save map projection to ini file. Save misc app info to ini file. 2016-12-09: Changed SGP4 code to use "C++ SGP4 Satellite Library" by danrw. Tracking now works thanks to new SGP4 library.
Earth Plot is currently coded to look for a file named "tle.txt" at:
/Users/YourUserName/Library/Application Support/Joyful Coder/EarthPlot
The file can simply be a list of full path file names.
# Comment lines begin with a '#' character. C:\Users\joyfulcoder\Documents\Earth Plot Data\iss.tle C:\Users\joyfulcoder\Documents\Earth Plot Data\pegasus.tleIf all your files are in the same path then specify a path for subsequent files with a '>' character.
> C:\Users\joyfulcoder\Documents\Earth Plot Data\ iss.tle pegasus.tle # Stop using the specified path with a '<' character. <Have a collection of TLEs in one file? Put an asterisk before the file name.
> C:\Users\joyfulcoder\Documents\Earth Plot Data\ * 20161219.tle # Only specified elements are loaded. # Specify elements by their catalog number. 25544 22491 # Stop using the specified collection with another '*' character. * <