Hi Prashant,
one approach to make the markers disappear when uncheck the checkbox is to
make them unvisible with 'setVisible(false)'.
To get all the markers of a category you need to put them in an array and
go through all markers to make them invisible:
for (var i=0; i<gmarkers.length; i++) {
if (gmarkers[i].mycategory == category) {
gmarkers[i].setVisible(false);
}
}
Have a look to the whole example
here: http://www.ralf-wessels.de/test/apiv3/marker_categories.html
Ralf
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