write the czml document to a file.
write the czml document to a file.
the CZML document, i.e. the list of CZML packets
the file name to write to, if empty or missing output will be to System.out
write the (json) string representation of a czml document to a file.
write the (json) string representation of a czml document to a file.
the CZML document as a (json) string
the file name to write to, if empty or missing output will be to System.out
basic supporting utilities