google.maps.event.addListenerOnce(map, "maptypeid_changed", function()
{
var currentMapTypeId = map.getMapTypeId();
var mapTypeReg = map.mapTypes;
var mapTypeId, mapType;
for(var i in google.maps.MapTypeId){
mapTypeId = google.maps.MapTypeId[i];
if (mapTypeId.substr(0, 1) != "_") {
mapType = mapTypeReg.get(mapTypeId);
if (typeof(params.minZoom) == "number") {
mapType.minZoom = params.minZoom;
}
if (typeof(params.maxZoom) == "number") {
mapType.maxZoom = params.maxZoom;
}
}
}
});
On 9月24日, 午前12:35, Francisco Ramos <[email protected]> wrote:
> The only problem with that way is the length of the slider, it doesn't
> change, keeping the same length from 0 to 20, and you are checking the
> zoom level in every zoom_changed
>
> Have a look at this snippets and give it a try:
>
> minZoom = 5;
> maxZoom = 15;
>
> map = new google.maps.Map(...);
>
> google.maps.event.addListener(map, "maptypeid_changed", function () {
>
> map.mapTypes[map.getMapTypeId()].minZoom = minZoom;
> map.mapTypes[map.getMapTypeId()].maxZoom = maxZoom;
>
> google.maps.event.trigger(map, "zoom_changed");
>
> });
>
> /
> ***************************************************************************
> **************/
>
> function setMinZoom (zoom) {
> map.mapTypes[map.getMapTypeId()].minZoom = zoom;
> google.maps.event.trigger(map, "zoom_changed");
>
> }
>
> function setMaxZoom (zoom) {
> map.mapTypes[this._map.getMapTypeId()].maxZoom = zoom;
> google.maps.event.trigger(map, "zoom_changed");
>
> }
>
> On Sep 23, 3:28 pm, korky <[email protected]> wrote:
>
>
>
> > Finally managed to do it. For those who're interested :
>
> > maxZoom = 19;
> > minZoom = 13;
> > google.maps.event.addListener(map, 'zoom_changed', function(){
> > if(map.getZoom() < maxZoom){
> > map.setZoom(maxZoom);
> > }else if(map.getZoom() > minZoom){
> > map.setZoom(minZoom);
> > }
> > });
>
> > On 23 sep, 14:46, korky <[email protected]> wrote:
>
> > > Hi, I'm new at coding with the API V3 and I'm actually trying to set
> > > maxZoom and minZoom values on my map, but can't find any way to do it.
> > > The point of this would be to restrict the user to a max and a min
> > > zoom on the map, thus if he reaches the value of maxZoom he can't
> > > scroll further and the same for minZoom.
>
> > > It must be kind of by using MapType ? But where do I declare all this
> > > stuff?
>
> > > Thanks.
>
> > > By the way, this is a part of my actual code, I guess I would've to
> > > declare the max and min Zoom nearby?
>
> > > function initialize()
> > > {
> > > geocoder = new google.maps.Geocoder();
>
> > > var mapCenter = new google.maps.LatLng(arrMapOptions[0].lat,
> > > arrMapOptions[0].lng);
> > > var mapOptions = {
> > > zoom: arrMapOptions[0].zoom,
> > > center: mapCenter,
> > > mapTypeId: google.maps.MapTypeId.ROADMAP
> > > };
>
> > > map = new google.maps.Map(document.getElementById('mapcanvas'),
> > > mapOptions);
>
> > > }
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