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index-antigo.html
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index-antigo.html
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html {height: 100%; width: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map_canvas
{
display: none;
}
.status
{
float: right;
}
</style>
<!-- jQuery 2.1.1 -->
<script type="text/javascript" src="js/jquery-2.1.1.min.js"></script>
<script type="text/javascript" src="js/sparql.js"></script>
<!-- API do Last.FM -->
<script type="text/javascript" src="js/lastfm.api.js"></script>
<script type="text/javascript" src="js/lastfm.api.cache.js"></script>
<script type="text/javascript" src="js/lastfm.api.md5.js"></script>
<!-- API do Google Maps -->
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?key=AIzaSyAYrlFcKWs6keQufW3Jo-jhzfDpBVX1eoM&sensor=false"></script>
<script type="text/javascript">
var Debugger =
{
debugMode : false,
debugCircle : true,
putCircle : function()
{
if (this.debugMode && this.debugCircle) {
markers.push(new google.maps.Circle({
center : map.getCenter(),
radius : getMapRadius() * 1000,
map : map,
strokeColor: '#FF0000',
strokeOpacity: 0.5,
strokeWeight: 2,
fillColor: '#FF0000',
fillOpacity: 0.10,
}));
}
},
log : function (msg) {
if (this.debugMode) {
console.log(msg)
}
}
};
var map;
var markers = [];
var lastfm;
//var sparqler;
function deleteMarkers() {
for (var i = 0; i < markers.length; i++) {
markers[i].setMap(null);
}
markers = [];
}
/***********************************************************************************************************************************************/
function initialize()
{
var mapOptions = {
center: new google.maps.LatLng(-34.397, 150.644),
zoom: 10,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
// Try W3C Geolocation (Preferred)
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
initialLocation = new google.maps.LatLng(position.coords.latitude,position.coords.longitude);
map.setCenter(initialLocation);
});
}
map.addListener("dragend", function() {
Debugger.log("center_changed");
refreshEvents(getMapCenter(), getMapRadius());
});
map.addListener("zoom_changed", function() {
Debugger.log("zoom_changed");
refreshEvents(getMapCenter(), getMapRadius());
});
/* Create a cache object */
var cache = new LastFMCache();
/* Create a LastFM object */
lastfm = new LastFM({
apiKey : '83f4027ae14bb9a53a2f83a16f62d795',
apiSecret : '5861a37f79df7ab6bdf808ff0ef24da9',
cache : cache
});
/* ///sparqler = new SPARQL.Service("http://dbpedia.org/sparql");
sparqler = new SPARQL.Service("http://dbpedia.org/sparql");
sparqler.addDefaultGraph('http://dbpedia.org/');
sparqler.setPrefix("owl","http://www.w3.org/2002/07/owl#");
sparqler.setPrefix("dbpedia", "http://dbpedia.org/resource/");
sparqler.setPrefix("dbpedia-owl", "http://dbpedia.org/ontology/");
sparqler.setPrefix("dbpprop", "http://dbpedia.org/property/");
sparqler.setPrefix("geonames", "http://www.geonames.org/ontology#");
sparqler.setOutput("json");*/
}
/***********************************************************************************************************************************************/
function refreshEvents(geolocation, distance)
{
$('#eventos').empty();
deleteMarkers();
Debugger.putCircle();
params = {
limit : 50
};
if (geolocation)
{
params['lat'] = geolocation.coords.latitude;
params['long'] = geolocation.coords.longitude;
}
if (distance)
{
params['distance'] = distance;
}
$('#status').text('Procurando...');
lastfm.geo.getEvents(params, {
success: function(data){
$('#status').text(data.events['@attr'].total + ' resultado(s) encontrado(s).');
Debugger.log(new Date() + ' - Resultado:');
/* Use data. */
$(data.events.event).each(function (i,e){
var myLatlng;
if (e.venue.location['geo:point']['geo:lat'] != "")
{
myLatlng = new google.maps.LatLng(e.venue.location['geo:point']['geo:lat'], e.venue.location['geo:point']['geo:long']);
}
else
{
//TODO: procurar no GeoNames usando SPARQL
}
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: e.title
});
markers.push(marker);
//$('<li>').text(e.title + ' / ' + e.venue.location.city).appendTo('#eventos');
Debugger.log(e.title + ' / ' + e.venue.location.city);
});
}, error: function(code, message){
}
});
}
/***********************************************************************************************************************************************/
function getCurrentLocation()
{
resultLocation = undefined;
// verificar se o navegador tem superte a geolocation
if (navigator.geolocation) {
// obter a localizacao atual
navigator.geolocation.getCurrentPosition(function(position) {
resultLocation = position;
},
function(){
alert('Erro ao obter posicao do geolocation.');
});
}
return resultLocation;
}
function getGeonamesLocation(locationName)
{
resultLocation = undefined;
/*
var query = sparqler.createQuery();
//query.addDefaultGraph('http://sws.geonames.org');
query.query(
'select distinct ?Concept where {[] a ?Concept} LIMIT 100',
{ success: function(value) {
alert('ok! ' + value.results.bindings[0].Concept.value);
//resultLocation = {
// latitude : value[0],
// longitude : value[1]
//};
},
failure : function () {
alert('erro sparql!');
}
}); */
return resultLocation;
}
function getMapCenter()
{
return { coords : {
latitude : map.getCenter().lat(),
longitude : map.getCenter().lng()
}
};
}
var rad = function(x) {
return x * Math.PI / 180;
};
var getDistance = function(p1, p2) {
var R = 6378137; // Earth’s mean radius in meter
var dLat = rad(p2.lat() - p1.lat());
var dLong = rad(p2.lng() - p1.lng());
var a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
Math.cos(rad(p1.lat())) * Math.cos(rad(p2.lat())) *
Math.sin(dLong / 2) * Math.sin(dLong / 2);
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
var d = R * c;
return d; // returns the distance in meter
};
function getMapDistance()
{
var pos_inicial = new google.maps.LatLng( map.getBounds().getSouthWest().lat(), map.getCenter().lng());
var pos_final = new google.maps.LatLng(map.getBounds().getNorthEast().lat(), map.getCenter().lng());
return getDistance(pos_inicial, pos_final);
}
function getMapRadius()
{
var dist = getMapDistance() / 1000 / 2;
if (dist > 100)
{
dist = 100;
}
Debugger.log('getMapRadius: ' +dist);
return dist;
}
/***********************************************************************************************************************************************/
function procurar(){
}
/***********************************************************************************************************************************************/
$(function(){
initialize();
Debugger.debugMode = true;
var initLocation = getCurrentLocation();
refreshEvents(initLocation, getMapRadius());
$('#procurarB').click(procurar);
});
</script>
</head>
<body>
<fieldset>
<input type="text" placeholder="cidade, pais, etc" id="local" />
<input type="text" placeholder="gênero musical" id="genero" />
<input type="button" value="Procurar" id="procurarB" />
<div id="status" class="status">Pronto</div>
</fieldset>
<!--
<ul id="eventos">
</ul>
-->
<div id="map_canvas" style="width:100%; height:100%"></div>
</body>
</html>