nokia マップを使用していますnokia.places.search.manager.findPlacesが、最大 100 件の結果が得られます。
しかし、500または1000程度の無制限の結果が必要です。どうすれば取得できますか?
私のノキア機能：
nokia.places.search.manager.findPlaces({ searchTerm: searchterm, searchCenter: lat,lng ,
limit:100, didYouMean: 5 });
質問する
392 次
1 に答える
0
findPlacesローカル検索です。ローカル検索は、小さなエリア周辺の結果に焦点を当てています。設定された距離を超える場所は関連性があるとは見なされないため、場所検索の現在の制限は 100 場所です。パラメータを追加してもlimit、特定の検索エリア内で 100 の関連する場所が見つかるという保証はありません。
ここでの秘訣は、1000 件の結果を要求しようとするのではなく、オブザーバーを使用して、マップのフォーカスが移動するにつれて最も近い 100 件の結果を求める一連の非同期要求を作成することです。マップに何千ものマーカーを配置すると、マップが判読不能になり、速度が低下し、応答しなくなります。
もちろん、独自のアプリIDとトークンを使用して、次のようなものを試してください。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<!--
Example from Nokia Maps API Playground, for more information visit http://api.maps.nokia.com
-->
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=7; IE=EmulateIE9"/>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Nokia Maps API Example: Search by category</title>
<meta name="description" content="Search by category"/>
<meta name="keywords" content="search, services, places, category"/>
<!-- For scaling content for mobile devices, setting the viewport to the width of the device-->
<meta name=viewport content="width=device-width, height=device-height, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
<!-- By default we add ?with=all to load every package available, it's better to change this parameter to your use case. Options ?with=maps|positioning|places|placesdata|directions|datarendering|all -->
<script type="text/javascript" charset="UTF-8" src="http://api.maps.nokia.com/2.2.3/jsl.js?with=all"></script>
<!-- JavaScript for example container (NoteContainer & Logger) -->
<style type="text/css">
html {
overflow:hidden;
}
body {
margin: 0;
padding: 0;
overflow: hidden;
width: 100%;
height: 100%;
position: absolute;
}
#mapContainer {
width: 80%;
height: 80%;
left: 0;
top: 0;
position: absolute;
}
#progress {
width: 80%;
height: 10%;
left: 0;
top: 80%;
position: absolute;
}
#buttons {
width: 80%;
height: 10%;
left: 0;
top: 90%;
position: absolute;
}
</style>
</head>
<body>
<div id="mapContainer"></div>
<div id="progress"></div>
<script type="text/javascript" id="exampleJsSource">
/* Set authentication token and appid
* WARNING: this is a demo-only key
* please register on http://api.developer.nokia.com/
* and obtain your own developer's API key
*/
nokia.Settings.set("appId", "MY APP ID");
nokia.Settings.set("authenticationToken", "MY TOKEN");
// Get the DOM node to which we will append the map
var mapContainer = document.getElementById("mapContainer");
// Create a map inside the map container DOM node
var map = new nokia.maps.map.Display(mapContainer, {
// Initial center and zoom level of the map
center: [52.51, 13.4],
zoomLevel: 13,
components: [
new nokia.maps.map.component.Behavior()
]
});
var searchManager = nokia.places.search.manager,
resultSet;
// Function for receiving search results from places search and process them
var processResults = function (data, requestStatus, requestId) {
var i, len, locations, marker;
if (requestStatus == "OK") {
// The function findPlaces() and reverseGeoCode() of return results in slightly different formats
locations = data.results ? data.results.items : [data.location];
// We check that at least one location has been found
if (locations.length > 0) {
// Remove results from previous search from the map
if (resultSet) map.objects.remove(resultSet);
// Convert all found locations into a set of markers
resultSet = new nokia.maps.map.Container();
for (i = 0, len = locations.length; i < len; i++) {
marker = new nokia.maps.map.StandardMarker(locations[i].position, { text: i+1 });
resultSet.objects.add(marker);
}
// Next we add the marker(s) to the map's object collection so they will be rendered onto the map
map.objects.add(resultSet);
// We zoom the map to a view that encapsulates all the markers into map's viewport
//map.zoomTo(resultSet.getBoundingBox(), true);
} else {
//alert("Your search produced no results!");
}
searching = false;
} else {
alert("The search request failed");
searching = false;
}
};
// Binding of DOM elements to several variables so we can install event handlers.
var progressUiElt = document.getElementById("progress");
// This function is called whenever we make a search
var searching = false;
search = function(searchCenter){
// Make a place search request
var category = "eat-drink"
progressUiElt.innerHTML = "Looking for places in the '" + category + "' category...'";
searchManager.findPlacesByCategory({
category: category,
onComplete: processResults,
searchCenter: searchCenter,
limit: 50,
});
}
search(new nokia.maps.geo.Coordinate(52.51, 13.4));
// This observer will call the search function if the center of the map is moved
// Beyond the area covered in the previous search
var centerObserver = function (obj, key, newValue, oldValue) {
if ((searching == false) && (resultSet.getBoundingBox().contains(newValue) == false) ){
searching = true;
search(newValue);
}
};
map.addObserver("center", centerObserver );
</script>
</body>
</html>
于 2013-01-15T14:00:08.193 に答える