Google Maps marker grouping

Question

I\'m trying to achieve the following thing: Have different types of markers on my map for example, schools, libraries, bus stops and I want to be able to show/hide each grou

Answer 1

You basically just need to store references to Marker objects in an array, set their type (school, bus stop, etc.) and then on some event loop through and hide/show as appropriate:

var markers = [];

// create Marker

marker.locType = 'school'; //as appropriate

function hideMarkersOfType(type) {
    var i = markers.length;
    while(i--) {
        if (markers[i].locType == type) {
            markers[i].setVisible(false);
        }
    }
}

// similar function showMarkersOfType() calling markers[i].setVisible(true);

That should be a good start anyway.