Вот краткий пример того, как вы можете получить границы своих функций.Это просто получит границы для каждого объекта, расширит объект LatLngBounds
, а затем подгонит карту под эти границы.
var map;
function initialize() {
map = new google.maps.Map(document.getElementById('map-canvas'), {
zoom: 10,
center: {
lat: 0,
lng: 0
}
});
var permits = {
type: "FeatureCollection",
id: "permits",
features: [{
type: "Feature",
properties: {
name: "Alpha Field"
},
geometry: {
type: "Polygon",
coordinates: [
[
[-0.72863, 51.895995],
[-0.730022, 51.896766],
[-0.730754, 51.896524],
[-0.731234, 51.896401],
[-0.731832, 51.896294],
[-0.732345, 51.896219],
[-0.732945, 51.896102],
[-0.732691, 51.895774],
[-0.732618, 51.895531],
[-0.732543, 51.895359],
[-0.73152, 51.894751],
[-0.731037, 51.894488],
[-0.730708, 51.894324],
[-0.72863, 51.895995]
]
]
}
},
{
type: "Feature",
properties: {
name: "Beta Field"
},
geometry: {
type: "Polygon",
coordinates: [
[
[-0.728004, 51.895658],
[-0.72863, 51.895995],
[-0.730708, 51.894324],
[-0.731217, 51.893784],
[-0.730992, 51.893709],
[-0.730793, 51.893567],
[-0.730734, 51.893435],
[-0.730761, 51.89333],
[-0.729696, 51.893244],
[-0.729391, 51.89314],
[-0.729249, 51.893586],
[-0.728991, 51.894152],
[-0.728525, 51.894983],
[-0.728004, 51.895658]
]
]
}
}
]
};
google.maps.event.addListenerOnce(map, 'idle', function() {
// Load GeoJSON.
map.data.addGeoJson(permits);
// Create empty bounds object
var bounds = new google.maps.LatLngBounds();
// Loop through features
map.data.forEach(function(feature) {
var geo = feature.getGeometry();
geo.forEachLatLng(function(LatLng) {
bounds.extend(LatLng);
});
});
map.fitBounds(bounds);
});
}
initialize();
#map-canvas {
height: 150px;
}
<div id="map-canvas"></div>
<script src="https://maps.googleapis.com/maps/api/js"></script>