Added guard statements to getMaxX and getMinX

Branch: lxalln/holographlibrary:master

Branch: danielnadeau/holographlibrary:master

Merged

#13 · Created 2013-11-30 · Last updated 2013-12-01

Merged pull request

Merged in cntwo/holographlibrary (pull request #13)

12ca106·Author: Daniel Nadeau·Closed by: Daniel Nadeau·2013-12-01

When loading data asynchronously, the getMaxX and getMinX methods would crash, due to the lines array being empty.

Have added simple guard statements to prevent this crash. 0 is returned when there are no lines.