Google Maps and jQuery – calculating distance between two points
It has been a long time since I wrote my last example, but I've been really busy. Lately I got a request to write an example about calculating the distance between two points using KML file. What I will show you in this example is how to provide an user two drop down fields, which will be build according to provided KML file. Choosing each field will show a marker on the map. Changing the drop down field will cause removal of an according marker and placement of it in a new location. Also the markers will have two different colors, so an user can differentiate between starting and ending point. As the last functionality we will add a button. After an user clicks on the button, our function will calculate the rout and display the distance in kilometers. Let's start with a simple class which we will use to display drop down field and retrieve the coordination of requested place.