Hi.
Changes 3.1.10:
* elevation profile can be displayed for KML layer, and you can set count of samples, which will be used from KML file
* you can set different type of profile (Area Chart, Line Chart, Column Chart)
* when you click on profile you’ll see infowin which will show corresponding place for this level
* when you move mouse over elevation graph, you’ll see placemark, which point to current elevation place
* you can select icon for marker, which show current elevation place
* you can set baseline for elevation values
Check demo
http://joomla.zhuk.cc/index.php/zhgooglemap-demo-feature-elevation