Quite frequently that I need to check the line of sight (LOS) between two points for the purpose of servicing our clients with radio transmission. So tonight I wrote a simple checking script that will take 2 locations in the format of degree decimal and plot an elevation for each predefined sampling periods. By doing that, I will get to know if there is any natural structure along the straight line of those points. Please note that it will just calculate earth elevation, exclude any trees or buildings in between.
Take a look at Line of Sight (LOS) script here. This simple tool is created in PHP and using Google Elevation API and also Google Chart for visualization.