[英]Delete marker clusters from google maps [not just the markers]
In my phonegapp/cordova app, I use the google maps tool and I need to change, sometimes, the points showed on it. 在我的phonegapp / cordova应用程序中,我使用了Google Maps工具,有时需要更改其上显示的点。 I found some useful code here to remove my markers from the google maps I use.
我在这里找到了一些有用的代码,可以从我使用的Google地图中删除标记。
My problem I also use marker clusters and I have a weird problem here. 我的问题我也使用标记簇,这里有一个奇怪的问题。
For my maps, I use these settings: 对于我的地图,我使用以下设置:
{
showControls: true,
key: { google: "XXXXXX" },
center: center,
width: "100%",
height: "95%",
zoom: zoom,
provider: "google",
mapType: "satellite",
autoAdjust: false,
onReady: SetMap
}
Where SetMap and the other called functions are: 其中SetMap和其他调用的函数是:
var mmm = null;
var markerCluster = null;
// Removes the markers from the map, but keeps them in the array.
function clearMarkers() {
setMapOnAll(null);
}
// Sets the map on all markers in the array.
function setMapOnAll(map) {
for (var i = 0; i < markerCluster.markers_.length; i++) {
markerCluster.markers_[i].setMap(map);
}
}
function SetMap (s) {
if (mmm == null)
mmm = s.originalMap;
else {
clearMarkers();
markerCluster.markers_ = [];
}
var map = mmm;
var markers = [];
for (var i = 0; i < pointsOnMapList.length; i++) {
var data = pointsOnMapList[i];
var latLng = new google.maps.LatLng(data.location[0], data.location[1]);
var marker = createMarker(latLng, data.title, map, data.idimp);
markers.push(marker);
}
markerCluster = new MarkerClusterer(map, markers, { imagePath: 'images/m' });
}
When I update my dataset, I simply call the SetMap function. 更新数据集时,只需调用SetMap函数。
This "almost" work. 这项“差不多”的工作。 My goal is to change the points in the map after the user filters them.
我的目标是在用户过滤点后更改地图中的点。 I get a new dataset from my api and I have to erase the map and populate it again with my new points.
我从api中获得了一个新的数据集,我必须删除地图,并用新的点再次填充它。
Example: let's say I have this map: 例如:假设我有这张地图:
Then, I filter my map points and I get old and new points in the same maps: 然后,我过滤了地图点,并在同一张地图中得到了旧点和新点:
Then, like magic, if I just change the map zoom, the old points disappear! 然后,就像魔术一样,如果我仅更改地图缩放比例,旧点就会消失!
NOTE: the single markers are deleted as I filter my dataset, without changing the zoom. 注意:在我过滤数据集时,不会删除单个标记,而不会更改缩放比例。 This problem is only for the marker clusters.
此问题仅适用于标记簇。 How can I delete them?
如何删除它们?
Just found the clue. 刚找到线索。 Editing my code in this way:
以这种方式编辑代码:
function SetMap (s) {
if (mmm == null)
mmm = s.originalMap;
else {
markerCluster.clearMarkers();
}
var map = mmm;
var markers = [];
for (var i = 0; i < pointsOnMapList.length; i++) {
var data = pointsOnMapList[i];
var latLng = new google.maps.LatLng(data.location[0], data.location[1]);
var marker = createMarker(latLng, data.title, map, data.idimp);
markers.push(marker);
}
markerCluster = new MarkerClusterer(map, markers, { imagePath: 'images/m' });
}
it works, all the markers and cluster are removed!!! 它可以工作,所有标记和群集都将被删除!!!
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