구글지도 자바 스크립트 : 만

Question

현재 geojson 도시 층, 전체 레이어에 InfoWindow는 디스플레이의 boundry에 정보창 보여 주지만, 이미지에 표시된대로 나는 도시 층의 boundry에 마우스를 가져에만 InfoWindow는 디스플레이를 필요로하는 방법 enter image description here

var cityLayer = new google.maps.Data(); 
cityLayer.loadGeoJson('laughlin.json'); 
cityLayer.setStyle({ fillColor: "#f6b234", fillOpacity:0.4, strokeColor: "#f6b234", strokeOpacity:0.8, strokeWeight: 4,}); 
cityLayer.setMap(regionMap); 
google.maps.event.addListener(cityLayer, 'mouseover', function(eve) { 
infowindow.setContent('<div><strong>Laughlin</strong></div>'); 
if (google.maps.geometry.poly.isLocationOnEdge(eve.latLng, cityLayer, 10e-4)) { infowindow.setPosition(eve.latLng); 
infowindow.open(regionMap, this); } 
}); 

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Answer 1

Google지도 API에서 제공하는 isLocationOnEdge function을 사용할 수 있습니다.

isLocationOnEdge(point:LatLng, poly:Polygon|Polyline, tolerance?:number)

당신은 당신의 요구 사항에 따라 허용 수준을 변경할 수 있습니다

그것은 다음과 같은 구문이 있습니다.

JS 바이올린 : 나는 loadGeoJson을 사용하고 https://jsfiddle.net/joysonds/dr1m7xvb/

function initMap() { 
     map = new google.maps.Map(document.getElementById('map'), { 
      center: {lat: 25.774, lng: -80.190}, 
     zoom: 12 
    }); 


    // Define the LatLng coordinates for the polygon's path. 
     var triangleCoords = [ 
     {lat: 25.774, lng: -80.190}, 
     {lat: 18.466, lng: -66.118}, 
     {lat: 32.321, lng: -64.757}, 
     {lat: 25.774, lng: -80.190} 
     ]; 

     // Construct the polygon. 
     var bermudaTriangle = new google.maps.Polygon({ 
     paths: triangleCoords, 
     strokeColor: '#FF0000', 
     strokeOpacity: 0.8, 
     strokeWeight: 2, 
     fillColor: '#FF0000', 
     fillOpacity: 0.35 
     }); 
     bermudaTriangle.setMap(map); 

    var infowindow = new google.maps.InfoWindow({content:"Test", maxWidth:200, disableAutoPan:true }); 

    google.maps.event.addListener(bermudaTriangle, 'click', function(event) { 
      if (google.maps.geometry.poly.isLocationOnEdge(event.latLng, bermudaTriangle, 10e-4)) { 
       infowindow.setPosition(event.latLng);infowindow.open(map); 
      } 
    }); 
}