An Orbit Symbol Library (.osl) is a collection of symbols that can be used as graphical representation of point features.
An OSL-file is an archived folder that contains a collection of of symbol files.
Any supported image or vector resource can be used as symbol in a symbol library.
Orbit offers some default symbol libraries :
Bundle all symbol files in a zip file and rename the .zip to .osl. Copy the .osl file to the Orbit symbol directory and restart Orbit :
The Symbol Library name is the name of the .osl file without file extension.
The Symbol name is the name of the symbol file without file extension as available in the symbol library file.
It is possible to export the symbol library as one image file, using the Make Symbol Library Image tool.