使用诺基亚地图“nokia.places.search.manager.findPlaces”我获得了20个地方的搜索结果。 如何获得更多结果?
我的诺基亚功能:
nokia.places.search.manager.findPlaces({ searchTerm:term, searchCenter:searchCenterN, didYouMean:5 });
答案 0 :(得分:0)
目前看来你最好的选择是使用 limit 参数,如图所示。默认值为20个位置,但可以扩展为100个。
searchManager.findPlacesByCategory({
category: category,
onComplete: processResults,
searchCenter: searchCenter,
limit: 50,
});
在结果集中还有一个 next URI,它访问RESTful Places API,但在2.2.3中似乎没有任何用于处理该数据的公共函数API。
以下是基于API Explorer示例的完整工作示例: http://developer.here.net/apiexplorer/examples/api-for-js/places-search/places-search-by-category.html
您需要获得自己的免费app id and token才能让它发挥作用。
<!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>
<div id="buttons">
<a onClick="search1();return false;" href="#">Find 20 Places</a>
<a onClick="search2();return false;" href="#">Find 50 Places</a>
</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", "YOUR APP ID");
nokia.Settings.set("authenticationToken", "YOUR 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: 10,
components: [
new nokia.maps.map.component.Behavior()
]
});
var searchCenter = new nokia.maps.geo.Coordinate(52.51, 13.4),
searchManager = nokia.places.search.manager,
resultSet;
var resultDataJF;
// Function for receiving search results from places search and process them
var processResults = function (data, requestStatus, requestId) {
var i, len, locations, marker;
resultDataJF = data;
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(), false);
} else {
alert("Your search produced no results!");
}
} else {
alert("The search request failed");
}
};
// Binding of DOM elements to several variables so we can install event handlers.
var progressUiElt = document.getElementById("progress");
search1 = function(){
// 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
});
}
search2 = function(){
// 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,
});
}
</script>
</body>
</html>