Javascript新手......
我有一个包含多个POLYGON区域的谷歌地图。我已经弄清楚如何只需单击多边形就可以进行ZOOM IN,并使用'dblclick'监听器进行ZOOM OUT并删除它们的监听器......
单击放大后,双击缩小,不允许我再次重复该功能。有没有办法多次放大和缩小?
这是我的代码:
//POLYGON ZONE 1 ================================
var zone1;
var triangleCoords = [
new google.maps.LatLng(29.738692, -95.399331),
new google.maps.LatLng(29.738688, -95.394781),
new google.maps.LatLng(29.737048, -95.394781),
new google.maps.LatLng(29.737048, -95.399331)
];
// Construct the polygon
// Note that we don't specify an array or arrays, but instead just
// a simple array of LatLngs in the paths property
zone1 = new google.maps.Polygon({
paths: triangleCoords,
strokeColor: "#00AEEF",
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: "#00AEEF",
fillOpacity: 0.05,
});
zone1.setMap(map);
zone1._myBounds = new google.maps.LatLngBounds();
for (var i=0; i<triangleCoords.length; i++)
{
zone1._myBounds.extend(triangleCoords[i]);
}
var listener = google.maps.event.addListener(zone1, 'click', function () {
map.fitBounds(zone1._myBounds);
google.maps.event.removeListener(listener);
});
var listener2 = google.maps.event.addListener(zone1, 'dblclick', function() {
if (map.getZoom() > 16) map.setZoom(13);
//map.setZoom(map.getZoom() -1);
//map.setCenter(map.getCenter());
google.maps.event.removeListener(listener2);
google.maps.event.addListener(zone1, 'click', function (){
map.fitBounds(zone1._myBounds);});
});
对于我的其他POLYGON区域,我是否还必须更改它们的变量名称?
此外,返回中心似乎无法正常工作。如果我需要在一个单独的问题中询问,我会。
感谢您的帮助!
答案 0 :(得分:0)
当前的问题是你在dblclick上添加的点击监听器中没有做同样的事情:
google.maps.event.addListener(zone1, 'click', function (){
map.fitBounds(zone1._myBounds);});
vs the original:
var listener = google.maps.event.addListener(zone1, 'click', function () {
map.fitBounds(zone1._myBounds);
google.maps.event.removeListener(listener);
});