我目前正在开发一个应用程序,其中根据用户的帖子在谷歌地图上放置各种标记和信息窗口。我还包括地理编码,以便用户可以更改他们的位置并查看任何区域的标记/帖子。
我想做的是让用户通过表单搜索信息窗口中的文本信息,然后地图通过显示包含该文本窗口的标记来响应。我已经搜索了 API,但没有看到提到的这种能力,尽管它似乎应该是可以实现的。
任何有关如何实现此目的的见解或信息将不胜感激。
这是应用程序中的当前代码:
function mainGeo()
{
if (navigator.geolocation)
{
navigator.geolocation.getCurrentPosition( mainMap, error, {maximumAge: 30000, timeout: 10000, enableHighAccuracy: true} );
}
else
{
alert("Sorry, but it looks like your browser does not support geolocation.");
}
}
var stories = {{storyJson|safe}};
var geocoder;
var map;
function loadMarkers(stories){
for (i=0;i<stories.length;i++) {
var story = stories[i];
(function(story) {
var pinColor = "69f2ff";
var pinImage = new google.maps.MarkerImage("http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld=S|" + pinColor,
new google.maps.Size(21, 34),
new google.maps.Point(0,0),
new google.maps.Point(10, 34));
var point = new google.maps.LatLng(story.latitude, story.longitude);
var marker = new google.maps.Marker({position: point, map: map, icon: pinImage});
var infowindow = new google.maps.InfoWindow({
content: '<div >'+
'<div >'+
'</div>'+
'<h2 class="firstHeading">'+story.headline+'</h2>'+
'<div>'+
'<p>'+story.author+'</p>'+
'<p>'+story.city+'</p>'+
'<p>'+story.topic+'</p>'+
'<p>'+story.date+'</p>'+
'<p>'+story.copy+'</p>'+
'<p><a href='+story.url+'>Click to read story</a></p>'+
'</div>'+
'</div>'
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.open(map,this);
});
})(story);
}
}
function mainMap(position)
{
geocoder = new google.maps.Geocoder();
// Define the coordinates as a Google Maps LatLng Object
var coords = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
// Prepare the map options
var mapOptions =
{
zoom: 15,
center: coords,
mapTypeControl: false,
navigationControlOptions: {style: google.maps.NavigationControlStyle.SMALL},
mapTypeId: google.maps.MapTypeId.ROADMAP
};
// Create the map, and place it in the map_canvas div
map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
// Place the initial marker
var marker = new google.maps.Marker({
position: coords,
map: map,
title: "Your current location!"
});
loadMarkers(stories);
}
function codeAddress() {
var address = document.getElementById("address").value;
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
}
function error() {
alert("You have refused to display your location. You will not be able to submit stories.");
}
mainGeo();