Javascript 从地图中删除carto图层
我能够添加一个卡通层,我的地图上的第一次点击如下。但是,我不确定如何在第二次单击时删除该层,或者以类似切换的方式删除该层Javascript 从地图中删除carto图层,javascript,jquery,d3.js,cartodb,Javascript,Jquery,D3.js,Cartodb,我能够添加一个卡通层,我的地图上的第一次点击如下。但是,我不确定如何在第二次单击时删除该层,或者以类似切换的方式删除该层 $("#toggle").button(); $("#toggle").on('click', firstClick) function firstClick() { $("#toggle").off('click').on('click', secondClick) var $this = $(this);
$("#toggle").button();
$("#toggle").on('click', firstClick)
function firstClick() {
$("#toggle").off('click').on('click', secondClick)
var $this = $(this);
$this.text('Heat');
var cluster = cartodb.createLayer(map, {
user_name : 'user_name',
type : 'cartodb',
sublayers : [{
sql : 'select * from lon_oa_residents_geocode_cluster',
cartocss : '#layer {marker-width: 7; marker-fill: ramp([cluster_no], (#bef4bf, #005c02, #89ef8b, #64f567, #00f204, #009c03, #005c02,#000000, #004b01, #003801), quantiles); marker-fill-opacity: 1; marker-allow-overlap: true; marker-line-opacity: 0; }',
interactivity : 'cartodb_id'
}]
}).addTo(map);
}
function secondClick() {
$("#toggle").off('click').on('click', firstClick)
var $this = $(this);
$this.text('Map');
//insert code here to remove the cluster layer
}
layer.hide()
从地图中隐藏图层
layer.show()
显示地图中先前添加的图层
layer.toggle()
切换图层的可见性并返回指示新状态的布尔值(如果显示图层,则为true;如果隐藏图层,则为false)
我的解决方案如下。定义子层的重要信息:
function firstClick() {
//alert("First Clicked");
$("#toggle").off('click').on('click', secondClick)
var $this = $(this);
$this.text('Density');
var cluster = cartodb.createLayer(map, {
user_name : 'user_name',
type : 'cartodb',
sublayers : [{
sql : 'select * from lon_oa_residents_geocode_cluster',
cartocss : '#layer {marker-width: 7; marker-fill: ramp([cluster_no], (#bef4bf, #005c02, #89ef8b, #64f567, #00f204, #009c03, #005c02,#000000, #004b01, #003801), quantiles); marker-fill-opacity: 1; marker-allow-overlap: true; marker-line-opacity: 0; }',
interactivity : 'cartodb_id'
}]
}).addTo(map, 0).done(function (layer) {
layer0 = layer;
});
}
function secondClick() {
$("#toggle").off('click').on('click', firstClick)
layer0.hide();
}