-2
<script>
function init(){
    var osmAttr = '&copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>';    
    var OSM = L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {maxZoom: 25, attribution: osmAttr}),
        latlng = L.latLng(12.8797,121.7740);
    var map = L.map('map', {center: latlng1, zoom: 6, layers: [OSM]});

    var iconSize = {"C":15,"D":20,"E":25,"F":30,"G":35,"H":40,"I":45};

    L.geoJson(situation, {
        pointToLayer: function (feature, latlng1) {


            setInterval(function(){
                    window.location.reload(100000);
                                    }, 30000);


            var mysymbol = new ms.Symbol(
                feature.properties.SIDC,{
                    size:iconSize[(feature.properties.SIDC).charAt(11)],
                    uniqueDesignation:feature.properties.name
                })

            var myicon = L.divIcon({className: '', 
                html : mysymbol.asSVG(), 
                iconAnchor: new L.Point(mysymbol.getAnchor().x, mysymbol.getAnchor().y)});

            return L.marker(latlng1,{icon:myicon, draggable:false});
        }
    }).addTo(map);
}
</script>

closed as unclear what you're asking by nmtoken, whyzar, Vince, LaughU, Jochen Schwarze Jan 31 at 7:28

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • 2
    welcome to GIS stack exchange. Thank you for sharing your code, but please edit the question to give more information on exactly where the problem is occurring, and what you are expecting to see. Your code will always load the map with zoom level 6 due to the line containing zoom: 6 - is this the section you are trying to change? – Stephen Lead Jan 30 at 3:17
  • 1
    This is an example of a "wall of code" post. They tend to be downvoted because the critical information about the environment, goal, problem and error message are all missing. Please Edit the question. – Vince Jan 31 at 1:18
1

This is a rather vague question (if any) and it has to be elaborated, but from what is already present, you should go with something along the lines of:

map.on('zoomend', function() {
    var zoomLvl = map.getZoom();
    var currentUrl = window.location.href;
    var newUrl = (currentUrl.indexOf("?")>-1) ? currentUrl + "&zoom=" + zoomLvl : "?zoom=" + zoomLvl;
    window.history.pushState({}, null, newUrl);
});

This will change the address bar text after each zoom change, so when you refresh your page, you will have a "zoom" parameter that you can process in the server side.

0

You could use HTML5's localStorage

Something like this should work.

// Retrieve
var mapZoomLevel = localStorage.theZoom;
 if (isNaN(mapZoomLevel)) { 
       mapZoomLevel = 12;  //default
}      

map.on('load', function(e){
    map.setZoom(mapZoomLevel);
}

//store
map.on('moveend', function(e) {
   localStorage.theZoom = map.getZoom();
});
  • Shouldn't it be on zoomend? – Stefan Jan 30 at 21:03
  • Your right, in my app I had to capture the current view, so I used moveend to accommodate pan too. – Bill Chappell Jan 31 at 13:13

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