[英]Google maps API V3 method fitBounds() using Prototypejs
我有一個如下所示的 div 來顯示谷歌地圖:
#map {
width: 300px;
height: 300px;
border: 1px solid #DDD;
}
<div id="map"></div>
我想以適合上述視口邊界的縮放級別顯示地圖。
當我編碼如下時它工作正常:
var geocoder = new google.maps.Geocoder();
var map = new google.maps.Map($('#map')[0], {zoom: 10});
geocoder.geocode({ 'address': generatedAddress }, function (results, status) {
if (status == 'OK') {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
if (results[0].geometry.viewport)
map.fitBounds(results[0].geometry.viewport);
} else {
alert('Geocode was not successful for the following reason: ' + status);
}
});
當我使用typeahead-addresspicker.js生成地圖時,它放大了太多?
我已將范圍縮小到以下代碼。 當調用AddressPicker.prototype.updateMap
功能boundsForLocation
期權AddressPicker.prototype.initMap
函數返回this.map.fitBounds(response.geometry.viewport);
當我調試時,我可以看到它按預期在AddressPicker.prototype.updateBoundsForPlace
函數中執行以下代碼:
if (response.geometry.viewport) {
console.log('test');
return this.map.fitBounds(response.geometry.viewport);
}
我不明白的是它如何連接回 google.maps.Map - 我不熟悉 ptototypejs? 所以基本上通過它,我們通過調用initMap來初始化地圖,然后我們調用updateMap函數。 在 updateMap 函數中,我們調用以下代碼片段:
if (_this.map) {
if ((_ref = _this.mapOptions) != null) {
_ref.boundsForLocation(response);
}
}
假設通過調用updateBoundsForPlace
來設置邊界,但谷歌地圖選項沒有公開任何名為 boundsForLocation 的屬性?
AddressPicker.prototype.initMap = function() {
var markerOptions, _ref, _ref1;
if ((_ref = this.options) != null ? (_ref1 = _ref.map) != null ? _ref1.gmap : void 0 : void 0) {
this.map = this.options.map.gmap;
} else {
this.mapOptions = $.extend({
zoom: 3,
center: new google.maps.LatLng(0, 0),
mapTypeId: google.maps.MapTypeId.ROADMAP,
boundsForLocation: this.updateBoundsForPlace
}, this.options.map);
this.map = new google.maps.Map($(this.mapOptions.id)[0], this.mapOptions);
}
this.lastResult = null;
markerOptions = $.extend({
draggable: true,
visible: false,
position: this.map.getCenter(),
map: this.map
}, this.options.marker || {});
this.marker = new google.maps.Marker(markerOptions);
if (markerOptions.draggable) {
return google.maps.event.addListener(this.marker, 'dragend', this.markerDragged);
}
};
AddressPicker.prototype.updateMap = function(event, place) {
if (this.options.placeDetails) {
return this.placeService.getDetails(place, (function(_this) {
return function(response) {
var _ref;
_this.lastResult = new AddressPickerResult(response);
if (_this.marker) {
_this.marker.setPosition(response.geometry.location);
_this.marker.setVisible(true);
}
if (_this.map) {
if ((_ref = _this.mapOptions) != null) {
_ref.boundsForLocation(response);
}
}
return $(_this).trigger('addresspicker:selected', _this.lastResult);
};
})(this));
} else {
return $(this).trigger('addresspicker:selected', place);
}
};
AddressPicker.prototype.updateBoundsForPlace = function(response) {
if (response.geometry.viewport) {
return this.map.fitBounds(response.geometry.viewport);
} else {
this.map.setCenter(response.geometry.location);
return this.map.setZoom(this.options.zoomForLocation);
}
};
設法通過注釋掉以下幾行來修復:
//if (response.geometry.viewport) {
// return this.map.fitBounds(response.geometry.viewport);
//} else {
this.map.setCenter(response.geometry.location);
return this.map.setZoom(this.options.zoomForLocation);
//}
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