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我有一個設置，允許我在基於複選框打開和關閉的情況下，成功過濾Google地圖中的標記。雖然我的新挑戰是某些標記屬於多個類別，但使我的設置不正確。我在學習，但這似乎超出了我。如何修改我的設置以僅使用過濾器將每個標記解除限制爲1個類別？每個標記最多可以屬於5個類別，並且如果選中相應的複選框，則需要顯示該標記。感謝您對此提供的任何幫助。谷歌地圖標記和多個類別的過濾標記
我的JS是：
< script type = "text/javascript" >
//<![CDATA[
if (GBrowserIsCompatible()) {
var gmarkers = [];
var gicons = [];
var baseIcon = new GIcon(G_DEFAULT_ICON);
baseIcon.iconAnchor = new GPoint(9, 34);
baseIcon.iconSize = new GSize(20, 34);
baseIcon.infoWindowAnchor = new GPoint(9, 2);
//gicons["theatre"] = new GIcon(baseIcon,"colour086.png");
//gicons["golf"] = new GIcon(baseIcon,"colour108.png");
// gicons["info"] = new GIcon(baseIcon,"colour125.png");
// A function to create the marker and set up the event window
function createMarker(point, name, html, category) {
var marker = new GMarker(point, gicons[category]);
// === Store the category and name info as a marker properties ===
marker.mycategory = category;
marker.myname = name;
GEvent.addListener(marker, "click", function() {
marker.openInfoWindowHtml(html);
});
gmarkers.push(marker);
return marker;
}
// == shows all markers of a particular category, and ensures the checkbox is checked ==
function show(category) {
for (var i = 0; i < gmarkers.length; i++) {
if (gmarkers[i].mycategory == category) {
gmarkers[i].show();
}
}
// == check the checkbox ==
document.getElementById(category + "box").checked = true;
}
// == hides all markers of a particular category, and ensures the checkbox is cleared ==
function hide(category) {
for (var i = 0; i < gmarkers.length; i++) {
if (gmarkers[i].mycategory == category) {
gmarkers[i].hide();
}
}
// == clear the checkbox ==
document.getElementById(category + "box").checked = false;
// == close the info window, in case its open on a marker that we just hid
map.closeInfoWindow();
}
// == a checkbox has been clicked ==
function boxclick(box, category) {
if (box.checked) {
show(category);
}
else {
hide(category);
}
// == rebuild the side bar
makeSidebar();
}
function myclick(i) {
GEvent.trigger(gmarkers[i], "click");
}
// == rebuilds the sidebar to match the markers currently displayed ==
function makeSidebar() {
var html = "";
for (var i = 0; i < gmarkers.length; i++) {
if (!gmarkers[i].isHidden()) {
html += '<a href="javascript:myclick(' + i + ')">' + gmarkers[i].myname + '<\/a><br>';
}
}
document.getElementById("side_bar").innerHTML = html;
}
// create the map
var map = new GMap2(document.getElementById("map_canvas"));
map.addControl(new GLargeMapControl());
map.addControl(new GMapTypeControl());
map.setCenter(new GLatLng(40.734953, -73.86775399999999), 8);
// Read the data
GDownloadUrl("/locator/testxml/11106/5000", function (doc) {
var xmlDoc = GXml.parse(doc);
var markers = xmlDoc.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
// obtain the attribues of each marker
var lat = parseFloat(markers[i].getAttribute("lat"));
var lng = parseFloat(markers[i].getAttribute("lng"));
var point = new GLatLng(lat, lng);
var address = markers[i].getAttribute("address");
var name = markers[i].getAttribute("name");
var html = "<b>" + name + "<\/b><p>" + address;
var category = markers[i].getAttribute("category");
// create the marker
var marker = createMarker(point, name, html, category);
map.addOverlay(marker);
}
// == show or hide the categories initially ==
show("young_men");
show("juniors");
show("girls");
show("boys");
show("toddler");
// == create the initial sidebar ==
makeSidebar();
});
}
else {
alert("Sorry, the Google Maps API is not compatible with this browser");
}
//]]>
< /script>
然後將HTML看起來這樣：
<form id="geofinder_form" method="post" action="index.php" >
</div>
<div class="form-line">
<div class="form-checkbox">
<input type = "checkbox" id="young_menbox" onclick="boxclick(this,'young_men')" />
<span>Young Men's</span></div>
<div class="form-checkbox">
<input type = "checkbox" id="juniorsbox" onclick="boxclick(this,'juniors')" />
<span>Junior's</span></div>
<div class="form-checkbox">
<input type = "checkbox" id="girlsbox" onclick="boxclick(this,'girls')" />
<span>Girls</span></div>
<div class="form-checkbox">
<input type = "checkbox" id="boysbox" onclick="boxclick(this,'boys')" />
<span>Boys</span></div>
<div class="form-checkbox">
<input type = "checkbox" id="toddlerbox" onclick="boxclick(this,'toddler')" />
<span>Toddler/Infant</span></div>
</div>
<div class="form-line">
<div class="form-input"><span>Zip-code</span>
<input type="text" class="zipcode" name="geoquery" onblur="if (!this.value) this.value = 'Zipcode'" onclick="this.value = ''" value="Zipcode" />
</div>
<div class="form-miles">
<select name="radius" id="select-radius" style="width:200px;">
<option value="5">Radius</option>
<option value="5">5 miles</option>
<option value="10">10 miles</option>
<option value="15">15 miles</option>
<option value="20">20 miles</option>
<option value="100">25 + miles</option>
</select>
</div>
</div>
<br clear="all" />
<button class="small-button" type="submit">SEARCH!</button>
</form>
這是用來顯示標記的XML文件中的一個片段：
<markers>
<marker name="Sample Store Name" address="92-59 59th, City, ST 11109" lng="-73.86775399999999" lat="40.734953" category="young_men"/>
</markers>