Google maps api 3 使用多个[和相交]复选框过滤Google地图标记
我无法使我的多重复选框过滤系统正常工作。我将解释这个问题,我在这里做的关于stackoverflow的研究,以及为什么在那之后我仍然需要帮助 我的问题是,当我逐渐取消选择标记时,我的复选框无法将其带回。当我单击这些过滤器时,它们工作得很好,因为它们会逐渐淡出与它们相关的标记。然而,在取消选中几个复选框之后,所有标记都会回到屏幕上,最后一个复选框在最终取消选中时不会执行任何操作 这是项目的临时URL: 这就是我被卡住的代码:Google maps api 3 使用多个[和相交]复选框过滤Google地图标记,google-maps-api-3,filter,checkbox,Google Maps Api 3,Filter,Checkbox,我无法使我的多重复选框过滤系统正常工作。我将解释这个问题,我在这里做的关于stackoverflow的研究,以及为什么在那之后我仍然需要帮助 我的问题是,当我逐渐取消选择标记时,我的复选框无法将其带回。当我单击这些过滤器时,它们工作得很好,因为它们会逐渐淡出与它们相关的标记。然而,在取消选中几个复选框之后,所有标记都会回到屏幕上,最后一个复选框在最终取消选中时不会执行任何操作 这是项目的临时URL: 这就是我被卡住的代码: //this getJson function exists withi
//this getJson function exists within an init funciton where a map
//has already been called
$.getJSON(theUrl,function(result){
$.each(result, function(i, item){
//get Longitude
var latCoord = item.coordinate;
var parenthCoord = latCoord.indexOf(",");
var partiaLat = latCoord.substr(1,parenthCoord-1);
var lat = parseFloat(partiaLat);
//alert(lat);
//get Latitude
var lngCoord = item.coordinate;
var commaCoord = lngCoord.indexOf(",");
var partiaLng = lngCoord.substr(commaCoord+1);
var lng = parseFloat(partiaLng);
//alert(lng);
// display ALL the story markers
var storyMarker;
storyMarker = new google.maps.Marker({
position: new google.maps.LatLng(lat, lng),// ----- > whithin the mutidimentional array,
map: map
});
//display the stories by clicking on the markers
google.maps.event.addListener(storyMarker, 'click', function() {
var from = "From ";
if(item.end_date != ""){
item.end_date = " to " + item.end_date;
}
else{
from = "";
}
$('#output').html(
'<p><span class="selected">Type of Entry: </span>' +
item.entry_type + ' <br/><br/>'+
'<span class="selected">Title: </span>'+ item.entry_title + '<br/><br/>' +
'<span class="selected">Date(s):</span><br/>'+ from +item.start_date+
//' to '+item.end_date+'<br/><br/>'+
item.end_date+'<br/><br/>'+
'<span class="selected">Content:</span><br/><br/> '+ item.entry
+'</p>'
);
});// end of story displays
//call filters from filter funciton
filter('#evacuation-filter',item.evacuation,"Yes");
filter('#evacuation-order-filter',item.evacuation_order,"Yes");
filter('#w-nearby-filter',item.w_nearby,"Yes");
filter('#hurricane-reached-filter',item.hurricane_reached,"Yes");
filter('#outdoors-filter',item.in_out_doors,"Outdoors Most of the Time");
filter('#indoors-filter',item.in_out_doors,"Indoors Most of the Time");
filter('#food-filter',item.food,"Yes");
filter('#windows-filter',item.windows,"Yes");
filter('#power-filter',item.power,"Yes");
filter('#wounded-filter',item.wounded,"Yes");
filter('#looting-filter',item.looting,"Yes");
filter('#blackouts-filter',item.blackouts,"Yes");
filter('#trees-filter',item.trees,"Yes");
filter('#powerlines-filter',item.powerlines,"Yes");
filter('#light-filter',item.light,"Yes");
filter('#sidewalks-filter',item.sidewalks,"Yes");
filter('#buildings-filter',item.buildings,"Yes");
filter('#flooding-filter',item.flooding,"Yes");
//FILTER FUNCTION
//first parameter is the checkbox id, the second is the filter criteria
//(the filter function has to be called within the $.each loop to be within scope)
var otherFilter = false;
function filter(id, criterion1, value){
var activeFilters = [];
$(id).change(function() {
//evalute if the checkbox has been "checked" or "unchecked"
var checkBoxVal = $(id).attr("checked");
//if it's been checked:
if(checkBoxVal=="checked"){
//1 - Get markers that don't talk about the filter
if(criterion1!=value && storyMarker.getVisible()==true){
//2 - fade them away, and leave only those meet the criteria
storyMarker.setVisible(false);
otherFilter = true;
activeFilters.push(criterion1);
//document.getElementById("text3").innerHTML=activeFilters+"<br/>";
//alert(activeFilters.push(criterion1) +","+criterion1.length);
}
}
//if it's been unchecked:
else if(checkBoxVal==undefined){
//1 - Get markers that don't talk about the filter
if(criterion1!=value && storyMarker.getVisible()==false){
//2 - Show them again
storyMarker.setVisible(true);
otherFilter = false;
activeFilters.pop(criterion1);
//alert(activeFilters.pop(criterion1) +","+criterion1.length);
} //end of if to cancel filter and bring markers and stories back
}
}); // end of change event
} // end of filter function
//var otherDropDown = false;
filter2("#media-filter",item.media);
filter2("#authorities-filter",item.authorities);
//---------------
function filter2(id2,criterion2){
$(id2).change(function() {
//get the value of the drowpdown menu based on its id
var dropDownVal = $(id2).attr("value");
var all="All";
//if the value isn't "All", other filters have not been applied, and marker is on screen
if(dropDownVal!=all && otherFilter==false){
//1 - check if the marker doesn't comply with filter
if(criterion2!=dropDownVal){
//2 - fade them away if not, and leave only those meet the criteria
storyMarker.setVisible(false);
//3 - If the marker does comply with it
}else if(criterion2==dropDownVal){
//4 - keep it there
storyMarker.setVisible(true);
}//end of filter applier
//else if if the value IS "All", filters have not been applied, and marker is faded
}else if(dropDownVal==all && otherFilter==false){
//select all the possible values for the cirterion
if(criterion2!=undefined){
//and show all those markers
storyMarker.setVisible(true);
}
}
});
} //end of function filter2
}); // end of $.each
}); // end of $.getJSON
//此getJson函数存在于映射
//已经打过电话了
$.getJSON(URL、函数(结果){
$。每个(结果、功能(i、项目){
//获得经度
var latCoord=项目坐标;
var parenthCoord=latCoord.indexOf(“,”);
var partiaLat=latCoord.substr(1,parenthCoord-1);
var-lat=parseFloat(partiaLat);
//警报(lat);
//获得自由
var lngCoord=项目坐标;
变量COMMACORD=lngCoord.indexOf(“,”);
var partiaLng=lngCoord.substr(COMMACORD+1);
var lng=浮动(部分);
//警报(液化天然气);
//显示所有故事标记
var故事标记;
storyMarker=新建google.maps.Marker({
位置:新的google.maps.LatLng(lat,lng),/->在多维数组中,
地图:地图
});
//通过单击标记显示故事
google.maps.event.addListener(故事标记,'click',函数(){
var from=“from”;
如果(item.end_date!=“”){
item.end_date=“to”+item.end_date;
}
否则{
from=“”;
}
$('#output').html(
“条目类型:”+
item.entry_type+“
”+
“Title:”+item.entry_Title+”
”+
“日期:
”+从+item.start\u日期+
//'至'+项目.结束日期+'
+
项目结束日期+“
”+
'Content:
'+item.entry
+“”
);
});//故事结尾显示
//从筛选器函数调用筛选器
过滤器(“疏散过滤器”,项目。疏散,“是”);
过滤器(“疏散令过滤器”,项目。疏散令,“是”);
过滤器('w-nearest-filter',item.w#u nearest,“是”);
过滤器(“#飓风到达过滤器”,项目。飓风到达,“是”);
过滤器(“户外过滤器”,项目。在户外,“大部分时间在户外”);
过滤器(“‘室内过滤器’”,项目。在户外,“大部分时间在室内”);
过滤器(“#食品过滤器”,item.food,“是”);
过滤器(“#windows过滤器”,item.windows,“是”);
过滤器(“#电源过滤器”,项目。电源,“是”);
过滤器(“#受伤过滤器”,项目。受伤,“是”);
过滤器(“#洗劫过滤器”,项目。洗劫,“是”);
过滤器(“#断电过滤器”,项目。断电,“是”);
过滤器(“#trees filter”,item.trees,“Yes”);
过滤器(“#电源线过滤器”,项目。电源线,“是”);
滤光片(“#滤光片”,项目。灯,“是”);
过滤器(“人行道过滤器”,项目。人行道,“是”);
过滤器(“#建筑物过滤器”,项目.建筑物,“是”);
过滤器(“泛洪过滤器”,项目.泛洪,“是”);
//过滤函数
//第一个参数是复选框id,第二个参数是筛选条件
//(必须在$内调用filter函数。每个循环都在作用域内)
var-otherFilter=false;
函数筛选器(id、准则1、值){
var-activeFilters=[];
$(id).更改(函数(){
//如果复选框已“选中”或“未选中”,则评估
var checkBoxVal=$(id).attr(“已检查”);
//如果已检查:
如果(checkBoxVal==“选中”){
//1-获取不涉及过滤器的标记
if(criterion1!=value&&storyMarker.getVisible()==true){
//2-淡出它们,只留下那些符合标准的
storyMarker.setVisible(false);
otherFilter=true;
activeFilters.push(标准1);
//document.getElementById(“text3”).innerHTML=activeFilters+“
”;
//警报(activeFilters.push(criterion1)+“,”+criterion1.length);
}
}
//如果未选中:
else if(checkBoxVal==未定义){
//1-获取不涉及过滤器的标记
if(criterion1!=value&&storyMarker.getVisible()==false){
//2-再次展示它们
storyMarker.setVisible(true);
otherFilter=false;
activeFilters.pop(标准1);
//警报(activeFilters.pop(criterion1)+“,”+criterion1.length);
}//结束if以取消筛选并带回标记和故事
}
});//更改事件结束
}//过滤器函数结束
//var otherDropDown=false;
过滤器2(“介质过滤器”,项目.media);
过滤器2(“权限过滤器”,项目.权限);
//---------------
功能过滤器2(id2,标准2){
$(id2).change(函数(){
//根据DrowDown菜单的id获取其值
var dropDownVal=$(id2.attr(“值”);
var all=“all”;
//如果该值不是“全部”,则未应用其他过滤器,并且标记器显示在屏幕上
if(dropDownVal!=all&&otherFilter==false){
var all_markers = [];
storyMarker.end_date = item.end_date;
storMarker.title = item.title;
...
all_markers.push(storyMarker);
// display ALL the story markers
var storyMarker;
storyMarker = new google.maps.Marker({
position: new google.maps.LatLng(lat, lng),// ----- > whithin the mutidimentional array,
map: map
});
storyMarker.pointer = [];
//alert(storyMarker.pointer);
function filter(id,criterion,value){
$(id).change(function() {
var checkBoxVal = $(id).attr("checked");
if(checkBoxVal=="checked"){
if(criterion!=value){
storyMarker.pointer.push("element");
//alert("array length: "+storyMarker.pointer.length);
if(storyMarker.pointer.length>0){
storyMarker.setVisible(false);
}
}
}
else if(checkBoxVal!="checked"){
if(criterion!=value){
storyMarker.pointer.pop("element");
//alert("array length: "+storyMarker.pointer.length);
if(storyMarker.pointer.length<=0){
storyMarker.setVisible(true);
}
}
}
});
}