我有一张地图和一个区域选择字段:
// initialize map
var map = L.map('map').setView([38, 0], 2);
L.tileLayer('http://{s}.tile.cloudmade.com/70146506bc514228adc1756788c730d3/997/256/{z}/{x}/{y}.png', {attribution: 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, Imagery © <a href="http://cloudmade.com">CloudMade</a>', maxZoom: 18}).addTo(map);
var areaSelect = L.areaSelect({
width:100,
height:150,
keepAspectRatio:true
});
areaSelect.addTo(map);
areaSelect.setDimensions({width: 50, height: 50});
想要获取矩形的宽度和高度。
var neLatCoord = $('#ne-lat-coordinate').val();
var neLonCoord = $('#ne-lon-coordinate').val();
var swLatCoord = $('#sw-lat-coordinate').val();
var swLonCoord = $('#sw-lon-coordinate').val();
var rectangle = L.rectangle([ [neLatCoord, neLonCoord], [swLatCoord, swLonCoord]]).addTo(map);
所以现在我想获取矩形的宽度和高度,以便我可以设置区域选择的尺寸,如下所示:
var rectangleWidth = rectangle.getBounds().getEast() - rectangle.getBounds().getWest();
var rectangleHeight = rectangle.getBounds().getNorth() - rectangle.getBounds().getSouth();
areaSelect.setDimensions({width: rectangleWidth, height: rectangleHeight});
但这给出了另一个宽度和高度?我不知道为什么?
有人可以帮助我吗,因为我被困在这个问题上了?
这是我的
EDIT:
如果我使用矩形而不是区域选择:
var rectangle = L.rectangle([ [21.616579, 29.487305], [7.798079, 20.522461]]);
map.addLayer(rectangle);
rectangle.editing.enable();
// Every time we move the selected rectangle, refresh data about the selected area.
rectangle.on('edit', function() {
selectedBounds = this.getBounds();
console.log("Area:", selectedBounds);
//some other code
});
$( ".select" ).click(function() {
rectangle.editing.disable();
map.removeLayer(rectangle);
rectangle = new L.rectangle([ [17.853290, 34.980469], [10.876465, 14.853516]]);
map.addLayer(rectangle);
rectangle.editing.enable();
});
当我点击重置时,该事件rectangle.on('edit', function() { ...
不管用?我不知道为什么?你能帮我吗