如何在Google Maps API中移除地图经纬线？附现有代码求助

要移除地图上的经纬线且不影响国家边界，你需要利用Google Maps样式规则的优先级（后定义的规则会覆盖先定义的），针对性地隐藏经纬线并保留国家边界。

具体做法是：

• 先将全局administrative的geometry设为off，隐藏包括经纬线在内的所有行政几何元素
• 再单独将administrative.country的geometry设为on，重新显示国家边界

修改后的完整代码如下：

guessMap = new google.maps.Map(document.getElementById("guessMap"), {
    center: { lat: 0, lng: 0 },
    zoom: 2,
    streetViewControl: false,
    mapTypeControl: false,
    fullscreenControl: false,
    minZoom: 2, // Minimalny zoom
    maxZoom: 15, // Maksymalny zoom
    restriction: { // Ograniczenia geograficzne
      latLngBounds: {
        north: 85,
        south: -85,
        east: 180,
        west: -180,
      },
      strictBounds: true,
    },
    styles: [ // Styl mapy
      {
        "featureType": "administrative",
        "elementType": "geometry",
        "stylers": [{ "visibility": "off" }] // 先隐藏所有行政几何元素（含经纬线）
      },
      {
        "featureType": "administrative.country",
        "elementType": "geometry",
        "stylers": [{ "visibility": "on" }] // 重新显示国家边界
      },
      {
        "featureType": "landscape",
        "elementType": "geometry",
        "stylers": [{ "visibility": "on" }]
      },
      {
        "featureType": "poi",
        "elementType": "labels",
        "stylers": [{ "visibility": "on" }]
      },
      {
        "featureType": "road",
        "elementType": "geometry",
        "stylers": [{ "visibility": "on" }]
      },
      {
        "featureType": "transit",
        "elementType": "labels",
        "stylers": [{ "visibility": "on" }]
      },
      {
        "featureType": "water",
        "elementType": "geometry",
        "stylers": [{ "visibility": "on" }]
      },
      {
        "featureType": "administrative.land_parcel",
        "elementType": "geometry",
        "stylers": [{ "visibility": "off" }]
      },
      {
        "featureType": "administrative.locality",
        "elementType": "labels",
        "stylers": [{ "visibility": "on" }]
      },
      {
        "featureType": "administrative.neighborhood",
        "elementType": "labels",
        "stylers": [{ "visibility": "on" }]
      },
      {
        "featureType": "administrative.province",
        "elementType": "labels",
        "stylers": [{ "visibility": "on" }]
      }
    ]
});

原理说明：Google Maps的经纬线属于administrative分类下的通用几何元素，而国家边界是administrative.country子分类的几何元素。通过先隐藏全局行政几何、再单独启用国家边界的方式，就能精准实现需求，不会影响其他地图元素的显示。

内容的提问来源于stack exchange，提问作者gapi