Google-Maps v3:如何根据缩放级别更改地图样式? [英] Google-Maps v3: How to change the map style based on zoom level?
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问题描述
我使用新的Google Maps v3 STYLED MAP。
我想根据缩放级别更改地图的样式。
我有以下伪代码,如何根据缩放级别更改我的地图样式?
var myOptions = {
zoom:zoom,
center:latlng,
disableDefaultUI: true,
navigationControl:true,
scrollwheel:false,
navigationControlOptions:{style:
google.maps.NavigationControlStyle.SMALL,position:
google.maps.ControlPosition .TOP_RIGHT},
mapTypeId:google.maps.MapTypeId.ROADMAP
};
var mapStyleZoomedOut = [{featureType:landscape,
elementType:all,
stylers:[{visibility:off}]
}] ;
var mapStyleZoomedIn = [{featureType:landscape,
elementType:all,
stylers:[{visibility:off}]
},{
featureType:poi,
elementType:all,
stylers:[{visibility:off}]
}];
map = new google.maps.Map(document.getElementById(find-map),
myOptions);
var styledMapOptions = {map:map};
var styleMapType = new google.maps.StyledMapType(mapStyle,
mapStyleZoomedOut);
map.mapTypes.set('minimial',styleMapType);
map.setMapTypeId('minimial');
google.maps.event.addListener(map,'zoom_changed',function(){
// === IF Zoom Level <= 8 use mapStyleZoomedIn
// === If缩放级别> 8使用mapStyleZoomedOut
});
预先致谢
解决方案
使用 Google地图API V3 ,我从你的源代码中汇集了一个测试例子(具有实际值以便使测试工作)。
以下是我用来成功测试的代码,
var myOptions = {
zoom:7,
center:new google.maps.LatLng(1,1),
disableDefaultUI:true,
navigationControl:true,
scrollwheel:false,
navigationControlOptions:{style :'小',位置:'TOP_RIGHT'},
mapTypeId:'ROADMAP'
};
var mapStyleZoomedOut = [{featureType:landscape,
elementType:all,
stylers:[{visibility:off}]
}] ;
var mapStyleZoomedIn = [{featureType:landscape,
elementType:all,
stylers:[{visibility:off}]
},{
featureType:poi,
elementType:all,
stylers:[{visibility:off}]
}];
函数start()
{
map = new google.maps.Map(document.getElementById(find-map),myOptions);
var styledMapOptions = {map:map,name:'minimial'};
var styledMapOptions2 = {map:map,name:'maximial'};
var sMapType = new google.maps.StyledMapType(mapStyleZoomedOut,styledMapOptions);
map.mapTypes.set('minimal',sMapType);
map.setMapTypeId('minimal');
var sMapType2 = new google.maps.StyledMapType(mapStyleZoomedIn,styledMapOptions2);
map.mapTypes.set('maximial',sMapType2);
google.maps.event.addListener(map,'zoom_changed',function()
{
var zoomLevel = map.getZoom();
// DEBUG alert(zoomLevel +','+ map.getMapTypeId());
var sMapType;
// === IF Zoom Level <= 8使用mapStyleZoomedIn
if(zoomLevel< = 8 )
map.setMapTypeId('maximial');
// ===如果缩放级别> 8使用mapStyleZoomedOut
else
map.setMapTypeId('minimal');
});
if(window.addEventListener)
window.addEventListener(load,start,false);
else if(window.attachEvent)
window.attachEvent(onload,start);
I am using the new Google Maps v3 STYLED MAP.
I want to change how the map is Styled based on the zoom level.
I have the following pseudo-code, how do change my map-style based on the zoom level?
var myOptions = {
zoom: zoom,
center: latlng,
disableDefaultUI: true,
navigationControl: true,
scrollwheel: false,
navigationControlOptions: {style:
google.maps.NavigationControlStyle.SMALL,position:
google.maps.ControlPosition.TOP_RIGHT},
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var mapStyleZoomedOut = [{ featureType: "landscape",
elementType: "all",
stylers: [{ visibility: "off" }]
}];
var mapStyleZoomedIn = [{ featureType: "landscape",
elementType: "all",
stylers: [{ visibility: "off" }]
},{
featureType: "poi",
elementType: "all",
stylers: [{ visibility: "off" }]
}];
map = new google.maps.Map(document.getElementById("find-map"),
myOptions);
var styledMapOptions = {map: map};
var styleMapType = new google.maps.StyledMapType(mapStyle,
mapStyleZoomedOut);
map.mapTypes.set('minimial', styleMapType);
map.setMapTypeId('minimial');
google.maps.event.addListener(map, 'zoom_changed', function() {
// === IF Zoom Level <= 8 use mapStyleZoomedIn
// === If Zoom Level > 8 use mapStyleZoomedOut
});
Thanks in advance
解决方案
Using the Google maps API V3, I put together a test example from your source code (with actual values in order to make the test work).
Below is the code I used to test successfully, the main code to pay attention to is in the start() function.
var myOptions = {
zoom: 7,
center: new google.maps.LatLng(1,1),
disableDefaultUI: true,
navigationControl: true,
scrollwheel: false,
navigationControlOptions: {style: 'SMALL',position: 'TOP_RIGHT'},
mapTypeId: 'ROADMAP'
};
var mapStyleZoomedOut = [{ featureType: "landscape",
elementType: "all",
stylers: [{ visibility: "off" }]
}];
var mapStyleZoomedIn = [{ featureType: "landscape",
elementType: "all",
stylers: [{ visibility: "off" }]
},{
featureType: "poi",
elementType: "all",
stylers: [{ visibility: "off" }]
}];
function start()
{
map = new google.maps.Map(document.getElementById("find-map"), myOptions);
var styledMapOptions = {map: map, name: 'minimial'};
var styledMapOptions2 = {map: map, name: 'maximial'};
var sMapType = new google.maps.StyledMapType(mapStyleZoomedOut,styledMapOptions);
map.mapTypes.set('minimal', sMapType);
map.setMapTypeId('minimal');
var sMapType2 = new google.maps.StyledMapType(mapStyleZoomedIn,styledMapOptions2);
map.mapTypes.set('maximial', sMapType2);
google.maps.event.addListener(map, 'zoom_changed', function()
{
var zoomLevel = map.getZoom();
//DEBUG alert(zoomLevel+', '+map.getMapTypeId());
var sMapType;
// === IF Zoom Level <= 8 use mapStyleZoomedIn
if(zoomLevel <=8)
map.setMapTypeId('maximial');
// === If Zoom Level > 8 use mapStyleZoomedOut
else
map.setMapTypeId('minimal');
});
}
if (window.addEventListener)
window.addEventListener("load", start, false);
else if (window.attachEvent)
window.attachEvent("onload", start);
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