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我有一个左侧贴图,我想过滤要显示的功能组。传单过滤现有功能组
exp_colJSON = new L.geoJson(exp_col,{
onEachFeature: pop_col,
pointToLayer: function (feature, latlng) {
return L.circleMarker(latlng, {
radius: feature.properties.radius_qgis2leaf,
fillColor: feature.properties.color_qgis2leaf,
color: feature.properties.borderColor_qgis2leaf,
weight: 1,
opacity: feature.properties.transp_qgis2leaf,
fillOpacity: feature.properties.transp_qgis2leaf }).addTo(map).bindLabel(Autolinker.link(String(feature.properties['name'])), { noHide: true });
}
});
feature_group.addLayer(exp_colJSON);
exp_colJSON.addTo(map);
我还添加了一个组合框,我想通过在组合框中选择的值来过滤图层的功能。我想通过图层中每个要素的“level”属性来组合选定的值。
到目前为止,我还编码:
$(document).ready(function(){ // ran when the document is fully loaded
// retrieve the jQuery wrapped dom object identified by the selector
var exp_getxocolcolegiosJSON = {};
var sel = $('#niveles');
// assign a change listener to it
sel.change(function(){ //inside the listener
// retrieve the value of the object firing the event (referenced by this)
var value = $(this).val();
//do whatever needed here to filter the layer
L.geoJson(exp_col, {
filter: function(feature, layer) {
return(feature.properties.nivelmodelo.match(/.*value.*\/))
}
}).addTo(map);
// I know this has no sense but i don't know how to code it
}); // close the change listener
}); // close the ready listener
问候,