I’m stuck here again. I have a database with over 120 000 coordinates that I need to be displayed on a google maps integrated in my application. The thing is that and I’ve found out the hard way simply looping through all of the coordinates and creating an individual marker for each and adding it using the addOverlay function is killing the browser. So that definitely has to be the wrong way to do this- I’ve read a bit on clustering or Zoom level bunching – I do understand that theres no point in rendering all of the markers especially if most of them won’t be seen in non rendered parts of the map except I have no idea how to get this to work.
How do I fix this here. Please guys I need some help here 🙁
There is a good comparison of various techniques here http://www.svennerberg.com/2009/01/handling-large-amounts-of-markers-in-google-maps/
However, given your volume of markers, you definitely want a technique that only renders the markers that should be seen in the current view (assuming that number is modest – if not there are techniques in the link for doing sensible things)