如何使用输入类型范围放大或缩小谷歌地图?
这是我的输入类型范围
<input class="form-control" id="range" type="range" min="10" max="500" value="50" step="10">
所有代码都包含谷歌地图API
答案 0 :(得分:2)
var map; // Make accessible
function map__Init(){
map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(51.5, -0.2),
zoom: 5,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
}
function map__SetZoom() {
map.setZoom( +this.value );
}
google.maps.event.addDomListener(window, "load", map__Init);
document.querySelector("#zoom").addEventListener("input", map__SetZoom);
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<script src="http://maps.googleapis.com/maps/api/js?v=3&sensor=false"></script>
<input id="zoom" type="range" min="0" max="20" value="5" step="1">
<div id="map" style="height: 400px;"></div>
&#13;
答案 1 :(得分:1)
首先,你需要对范围输入元素有一个明确的定义,例如:
<input class="form-control" id="range" type="range" min="5" max="15" value="10" step="1">
然后你可以这样做:
function myMap() {
var mapCanvas = document.getElementById("map");
var mapOptions = {
center: new google.maps.LatLng(51.5, -0.2),
zoom: 10
}
var map = new google.maps.Map(mapCanvas, mapOptions);
var range = document.getElementById("range");
range.addEventListener("change", function() {
map.setZoom(range.value);
});
}