112 lines
3.5 KiB
HTML
112 lines
3.5 KiB
HTML
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<html>
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<head>
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<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=no">
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<style>
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html, body, #map {
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margin: 0;
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padding: 0;
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width: 100%;
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height: 100%;
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}
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#map {
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width: 100%;
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height: 100%;
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}
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.button {
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position: absolute;
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background-color: #888;
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font: bold 16px Helvetica;
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padding: 5px 10px;
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width: 10px;
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color: white;
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text-decoration: none;
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border-radius: 3px;
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display: inline-block;
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text-align: center;
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}
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#plus {
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top: 40px;
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left: 40px;
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}
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#minus {
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top: 40px;
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left: 73px;
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}
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.button:hover {
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background-color: #BBB;
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}
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</style>
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</head>
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<body>
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<div id="map"></div>
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<a id="plus" href="#" class="button">+</a>
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<a id="minus" href="#" class="button">-</a>
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</body>
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<script src="gmaps_mercator.js"></script>
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<script src="map.js"></script>
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<script src="http://localhost:8080/socket.io/socket.io.js"></script>
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<script>
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map = new Map(document.getElementById('map'), {
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center: new LatLng(41.69, -4.83),
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zoom: 4
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});
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document.getElementById('plus').onclick = function() {
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map.model.setZoom(map.model.zoom + 1);
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return false;
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}
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document.getElementById('minus').onclick = function() {
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map.model.setZoom(map.model.zoom - 1);
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return false;
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}
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function render() {
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//var tiles = self.model.visibleTiles(self.view.width, self.view.height);
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//self.view.renderTiles(tiles, this.center_pixel);
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}
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var socket = io.connect('http://localhost:8080');
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function get_sql() {
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var bbox = map.model.getBBox(map.view.width, map.view.height);
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var sql = "select st_asgeojson(the_geom,5) as the_geom_geojson from places WHERE the_geom && ST_SetSRID(ST_MakeBox2D(";
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sql += "ST_Point(" + bbox[0].lng + "," + bbox[0].lat +"),";
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sql += "ST_Point(" + bbox[1].lng + "," + bbox[1].lat +")), 4326)";
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return sql ;
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}
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map.model.on('end_move', jajaja=function() {
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var s = get_sql();
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//console.log(s);
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//setTimeout(function() {
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socket.emit("sql_query", {sql: s, id:'LOVELY'});
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//}, 1000);
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var tiles = map.model.visibleTiles(map.view.width, map.view.height);
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map.view.renderTiles(tiles, this.center_pixel);
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});
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function add_point(p) {
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var p = new LatLng(p[1], p[0]);
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var px = map.model.projection.fromLatLngToPixel(p, map.model.zoom);
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var centerpx= map.model.getCenterPixel(map.view.width, map.view.height);
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map.view.context.fillStyle = '#000';
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map.view.context.fillRect(px.x - centerpx.x , px.y - centerpx.y, 2, 2);
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}
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socket.on('sql_result', function(data){
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if (data.state == 1){
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geo = JSON.parse(data.r['the_geom_geojson']);
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add_point(geo.coordinates);
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}
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});
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map.model.on('zoom_changed', jajaja);
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map.model.emit('center_changed');
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</script>
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</html>
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