Sorry about the triple posting my browser is playing up!
I have tried to implement a combination of Martin's and geocodezip's
example code but it now prevents my regional_markers from displaying
at all. Please can you let me know what is wrong:
This section relates to Geocodezip's code which checks the currentZoom
and in my code compares it to the maxZoom:
// A function to create the marker and set up the event window
function createMarker
(point,name,infotitle,html,icontype,maxZoom) {
// === create a marker with the requested icon ===
var marker = new GMarker(point, gicons[icontype]);
if(icontype == 'pushpin' || icontype == 'arrow') {
GEvent.addListener(marker, "click", function() {
var currentZoom = map.getZoom();
// alert("currentZoom="+currentZoom);
if (currentZoom < maxZoom) {
GMarker.hide();
}
//
map.setCenter(marker.getPoint(),maxZoom,G_SATELLITE_MAP);
map.setCenter(marker.getPoint(),maxZoom);//no
infowindow only
center on point,maxZoom and maptype
});
}else{
GEvent.addListener(marker, "click", function() {
marker.openInfoWindowHtml("!",{buttons:{restore:{show:4}},
maxContent: html, maxTitle: infotitle, noCloseOnClick: true});
window.setTimeout(function(){map.getInfoWindow().maximize()},
200);
});
}
// save the info we need to use later for the side_bar
gmarkers[i] = marker;
htmls[i] = html;
// add a line to the side_bar html
side_bar_html += '<a href="javascript:myclick(' + i + ')">' +
name + '</a><br>';
i++;
return marker;
}
Secondly, this part of my code builds my regional markers - and here i
have tried to add Martin's code (i presumed i needed both bits of
code!):
var markers = xmlDoc.documentElement.getElementsByTagName
("regional_markers");
GEvent.addListener(map, 'zoomend', function(oldZoom, newZoom){
for (var i = 0; i < markers.length; i++) {
// obtain the attribues of each marker
var lat = parseFloat(markers[i].getAttribute
("lat"));
var lng = parseFloat(markers[i].getAttribute
("lng"));
var point = new GLatLng(lat,lng);
var label = markers[i].getAttribute("name");
var minZoom = parseFloat(markers[i].getAttribute(
"minzl" ) );
var maxZoom = parseFloat(markers[i].getAttribute(
"maxzl" ) );
//GLog.write('name ' + label + ' min ' + minZoom + '
max ' +
maxZoom);
var reg_id = markers[i].getAttribute("id");
var nat_id = markers[i].getAttribute("nat_id");
//GLog.write(title);
//GLog.write(photo);
// === read the icontype attribute ===
var icontype = markers[i].getAttribute
("icon");
//GLog.write(icontype);
if (markers[i].maxZoom>newZoom){
if (!markers[i].isHidden()){
markers[i].hide();
} else if (markers[i].isHidden() &&
markers[i].maxZoom<=newZoom){
markers[i].show();
}
}
// === create the marker, passing the icontype string ===
var marker = createMarker
(point,label,infotitle,html,icontype,maxZoom); //
'infotitle,html,' - need to be present otherwise the regional icons
won't display -- very weird!
//map.addOverlay(marker);
markerManager.addMarker(marker,minZoom,maxZoom);
}
}); // close addListener 'zoomend'
Any help or advice is much appreciated
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