I am using Google Maps in the Corona SDK, but I am having problems while the map is loaded. It's not zooming or is not clearly visible, just like below:
Here is my code block which is in HTML file:
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
html,
body {
height: 100%; margin: 0; padding: 0 ;
}
#mapContainer {
height: 100% ;
}
</style>
<script type="text/javascript" src="<script type="text/javascript"
src="http://maps.googleapis.com/maps/api/js?key=]]..APIkey..[[&sensor=true"></script>
</head>
<body>
<div id="mapContainer">
</div>
<div id="mapContainer">
</div>
<script type="text/javascript">
var mapContainer = $( "#mapContainer" );
map = new google.maps.Map(
mapContainer[ 0 ],
{
zoom: 20,
center: new google.maps.LatLng(
-22.902145,
-43.177049
),
mapTypeId: google.maps.MapTypeId.ROADMAP
}
);
function addMarker( latitude, longitude, label ){
var im = "http://www.robotwoods.com/dev/misc/bluecircle.png"
var marker = new google.maps.Marker({
map: map,
position: new google.maps.LatLng(
latitude,
longitude
),
icon: im
});
return( marker );
}
function updateMarker( marker, latitude, longitude, label ){
marker.setPosition(
new google.maps.LatLng(
latitude,
longitude
)
);
if (label){
marker.setTitle( label );
}
}
if (navigator.geolocation) {
var locationMarker = null;
navigator.geolocation.getCurrentPosition(
function( position ){
if (locationMarker){
return;
}
locationMarker = addMarker(
position.coords.latitude,
position.coords.longitude,
"Initial Position"
);
},
function( error ){
},
{
timeout: (5 * 1000),
maximumAge: (1000 * 60 * 15),
enableHighAccuracy: true
}
);
var positionTimer = navigator.geolocation.watchPosition(
function( position ){
updateMarker(
locationMarker,
position.coords.latitude,
position.coords.longitude,
"Updated / Accurate Position"
);
}
);
setTimeout(
function(){
navigator.geolocation.clearWatch( positionTimer );
},
(1000 * 60 * 5)
);
var uri
if(]]..chk..[[)
uri ="http://192.168.1.202/streetculture/images/1/img1.png"
var image = new google.maps.MarkerImage(uri,
new google.maps.Size(50, 70),
new google.maps.Point(0,0),
new google.maps.Point(20, 28)
);
]]..markerString..[[
if(]]..chk2..[[)
uri ="http://192.168.1.202/streetculture/images/1/img_map_pin_pink.png"
var image = new google.maps.MarkerImage(uri,
new google.maps.Size(50, 70),
new google.maps.Point(0,0),
new google.maps.Point(20, 28)
);
]]..markerString..[[
}
</script>
</body>
</html>
I am loading this HTML file in my web view.
I have solve this problem ,
we need to put
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
for mobile device for webpage
Related
I have layers on Geoserver(2.13.0) that configure with MSSQL DataStore.I install vector tile extension for the same version. After installed, while previewing with TileLayers pbf by selection from drop down result is displaying.
http://localhost:8080/geoserver/gwc/demo/mystate:State?gridSet=EPSG:900913&format=application/x-protobuf;type=mapbox-vector
And also while a request from OpenLayers client same result is coming.
<html>
<head>
<title>Vector tiles</title>
<script src="./js/build-ol.js"></script>
<link rel="stylesheet" href="./css/ol.css">
<style>
html,
body {
font-family: sans-serif;
width: 100%;
}
.map {
height: 500px;
width: 100%;
}
</style>
</head>
<body>
<h3>Mapbox Protobuf - vector tiles</h3>
<div id="map" class="map"></div>
<script>
var gridsetName = 'EPSG:900913';
var gridNames = ['EPSG:900913:0', 'EPSG:900913:1', 'EPSG:900913:2', 'EPSG:900913:3', 'EPSG:900913:4', 'EPSG:900913:5', 'EPSG:900913:6', 'EPSG:900913:7', 'EPSG:900913:8', 'EPSG:900913:9', 'EPSG:900913:10', 'EPSG:900913:11', 'EPSG:900913:12', 'EPSG:900913:13', 'EPSG:900913:14', 'EPSG:900913:15', 'EPSG:900913:16', 'EPSG:900913:17', 'EPSG:900913:18', 'EPSG:900913:19', 'EPSG:900913:20'];
var baseUrl = 'http://localhost:8080/geoserver/gwc/service/wmts';
var style = 'StateStyle';
var format = 'application/x-protobuf;type=mapbox-vector';
var infoFormat = 'text/html';
var layerName = 'myState:State';
var projection = new ol.proj.Projection({
code: 'EPSG:900913',
units: 'm',
axisOrientation: 'neu'
});
var resolutions = [156543.03390625, 78271.516953125, 39135.7584765625, 19567.87923828125, 9783.939619140625, 4891.9698095703125, 2445.9849047851562, 1222.9924523925781, 611.4962261962891, 305.74811309814453, 152.87405654907226, 76.43702827453613, 38.218514137268066, 19.109257068634033, 9.554628534317017, 4.777314267158508, 2.388657133579254, 1.194328566789627, 0.5971642833948135, 0.29858214169740677, 0.14929107084870338];
params = {
'REQUEST': 'GetTile',
'SERVICE': 'WMTS',
'VERSION': '1.0.0',
'LAYER': layerName,
'STYLE': style,
'TILEMATRIX': gridsetName + ':{z}',
'TILEMATRIXSET': gridsetName,
'FORMAT': format,
'TILECOL': '{x}',
'TILEROW': '{y}'
};
function constructSource() {
var url = baseUrl + '?'
for (var param in params) {
url = url + param + '=' + params[param] + '&';
}
url = url.slice(0, -1);
var source = new ol.source.VectorTile({
url: url,
format: new ol.format.MVT({}),
projection: projection,
tileGrid: new ol.tilegrid.WMTS({
tileSize: [256, 256],
origin: [-2.003750834E7, 2.003750834E7],
resolutions: resolutions,
matrixIds: gridNames
}),
wrapX: true,
});
return source;
}
var layer = new ol.layer.VectorTile({
source: constructSource()
});
var view = new ol.View({
center: [0, 0],
zoom: 2,
projection: projection,
extent: [-20037508.34, -20037508.34, 20037508.34, 20037508.34]
});
var map = new ol.Map({
layers: [layer],
target: 'map',
view: view
});
map.getView().fit([-13603589.920418553, 6450443.998733485, -12407892.278044553, 7757990.05940472], map.getSize());
</script>
</body>
</html>
But in the same example, I want to apply style for the wmts using GetTile.
I tried according to documentation
Below is the code not working:
<html>
<head>
<title>Vector tiles</title>
<script src="ol.js"></script>
<link rel="stylesheet" href="ol.css">
<style>
html, body {
font-family: sans-serif;
width: 100%;
}
.map {
height: 500px;
width: 100%;
}
</style>
</head>
<body>
<h3>Mapbox Protobuf - vector tiles</h3>
<div id="map" class="map"></div>
<script>
var style_simple = new ol.style.Style({
fill: new ol.style.Fill({
color: '#ADD8E6'
}),
stroke: new ol.style.Stroke({
color: '#880000',
width: 1
})
});
function simpleStyle(feature) {
return style_simple;
}
var layer = 'myState:State';
var projection_epsg_no = '900913';
var map = new ol.Map({
target: 'map',
view: new ol.View({
center: [0, 0],
zoom: 2
}),
layers: [new ol.layer.VectorTile({
style:simpleStyle,
source: new ol.source.VectorTile({
tilePixelRatio: 1, // oversampling when > 1
tileGrid: ol.tilegrid.createXYZ({maxZoom: 19}),
format: new ol.format.MVT(),
url: 'http://localhost:8080/geoserver/gwc/service/wtms/1.0.0/' + layer +
'#EPSG%3A'+projection_epsg_no+'#pbf/{z}/{x}/{-y}.pbf'
})
})]
});
</script>
</body>
</html>
Could you suggest me how I can apply my custom styles and getTile from GeoServer with ol.format.MVT()?
I think you are facing a projection problem. I also have faced the same problems. I solved it by changing views.
You can try this:
var map = new ol.Map({
target: 'map',
view: new ol.View({
center: ol.proj.fromLonLat([89.5403, 22.8456]), ## change the long/lat values based on your data
zoom: 2
}),
This question already has answers here:
Google Maps API v3: How to remove all markers?
(32 answers)
Closed 4 years ago.
Could someone be kind enough to share how I can clear the markers in google map before refreshing it with a new set of markers?
In my map, I'm adding markers from an array that contains name, lat and long. The name can be picked from a drop down menu, and then all the markers for that name are added to the page.
Prtoject : Asp.Net Mvc
Link image: https://i.hizliresim.com/V927Py.jpg
When the user adds markers, the previous set of markers remain. I'd like to remove any existing markers before adding the new set.
After reading the documentation, I tried this:
#{
ViewBag.Title = "Index";
Layout = "~/Views/Shared/_Layout.cshtml";
}
#model List<Project_Map.Models.KONUM>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Complex Marker Icons</title>
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<style>
#map_wrapper {
height: 700px;
}
#map_canvas {
width: 100%;
height: 100%;
}
</style>
<div id="map_wrapper">
<div class="mapping" id="map_canvas">
</div>
</div>
<div id="map"></div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
jQuery(function ($) {
var script = document.createElement('script');
script.src = "https://maps.googleapis.com/maps/api/js?key=AIzaSyBT56XlfxnK2OB4K93vWdrZci_CKjZyQOM&callback=initMap";
document.body.appendChild(script);
});
</script>
<!-- Google Maps Kodu -->
<script type="text/javascript">
var contentString = '<div id="content">' +
'<div id="siteNotice">' +
'<img src="#IMG_SRC#" />' +
'</div>' +
//'<h2 id="firstHeading" class="firstHeading">#PERSONEL#</h2>' +
'<div id="bodyContent">' +
'<b>Mesafe: </b>#MESAFE# Km<br />' +
'<b>Tarih: </b> #TARIH#' +
'</p>' +
'</div>' +
'</div>';
$(document).ready(function () {
initMap();
});
function initMap() {
var mapCenter = { lat: 39.684536, lng: 35.337094 };
var map = new google.maps.Map(document.getElementById('map_wrapper'), {
zoom: 6,// haritanın yakınlık derecesi
center: mapCenter, // haritanın merkezi
mapTypeId: google.maps.MapTypeId.HYBRID
});
var infoWindow = new google.maps.InfoWindow();
setInterval(function () {
$.ajax({
url: '#Url.Action("GetMapLocations", "Konum")',
type: "POST",
success: function (data) {
var json = JSON.parse(data);
for (var i = 0; i < json.length; i++) {
var position = {
lat: parseFloat(json[i].lat.replace(',', '.')),
lng: parseFloat(json[i].lng.replace(',', '.'))
};
var marker = new google.maps.Marker({
position: position,
animation: google.maps.Animation.BOUNCE,
map: map,
});
// infoWindow içeriğini replace et
var cs = contentString;
cs = cs.replace("#PERSONEL#", json[i].name);
cs = cs.replace("#MESAFE#", json[i].mesafe);
cs = cs.replace("#TARIH#", json[i].tarih);
cs = cs.replace("#IMG_SRC#", json[i].img);
google.maps.event.addListener(marker, 'click', (function (marker, cs, infoWindow) {
return function () {
infoWindow.setContent(cs);
infoWindow.open(map, this);
passive: true;
};
})(marker, cs, infoWindow));
};
},
error: function (data) { alert("Malesef Sunucunuza Ulaşamıyoruz. Lütfen Tekrar Deneyiniz..."); },
});
}, 5000);
};
</script>
</body>
</html>
You have to set up an array, where you can store the added marker
var gmarkers = [];
If you add a marker you have to store the marker object in the array.
gmarkers.push(marker);
If you want to remove these markers you can use something like:
function removeMarker() {
if (gmarkers.length > 0) {
for (var i=0; i<gmarkers.length; i++) {
if (gmarkers[i] != null) {
gmarkers[i].setMap(null);
}
}
}
gmarkers = [];
}
I set up a nice map in my rails application. Everything is working fine but I cannot style the map with SnazzyMaps.
Here is my map.js file:
import GMaps from 'gmaps/gmaps.js';
const mapElement = document.getElementById('map');
if (mapElement) { // don't try to build a map if there's no div#map to inject in
const map = new GMaps({ el: '#map', lat: 0, lng: 0 });
const markers = JSON.parse(mapElement.dataset.markers);
const mapMarkers = map.addMarkers(markers);
mapMarkers.forEach((marker, index) => {
marker.addListener('click', () => {
// map.setCenter(markers[index]);
markers[index].infoWindow.open(map, marker);
})
});
if (markers.length === 0) {
map.setZoom(2);
} else if (markers.length === 1) {
map.setCenter(markers[0].lat, markers[0].lng);
map.setZoom(14);
} else {
map.fitLatLngBounds(markers);
}
}
import { autocomplete } from '../components/autocomplete';
// [...]
autocomplete();
On SnazzyMaps they give the following example. My question is, where shall I insert which part of this code in my own file. Been trying it for a while now but cannot make it work. Here is SnazzyMaps example:
<!DOCTYPE html>
<html>
<head>
<title>Snazzy Maps Super Simple Example</title>
<style type="text/css">
/* Set a size for our map container, the Google Map will take up 100% of this container */
#map {
width: 750px;
height: 500px;
}
</style>
<!--
You need to include this script tag on any page that has a Google Map.
The following script tag will work when opening this example locally on your computer.
But if you use this on a localhost server or a live website you will need to include an API key.
Sign up for one here (it's free for small usage):
https://developers.google.com/maps/documentation/javascript/tutorial#api_key
After you sign up, use the following script tag with YOUR_GOOGLE_API_KEY replaced with your actual key.
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=YOUR_GOOGLE_API_KEY"></script>
-->
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js"></script>
<script type="text/javascript">
// When the window has finished loading create our google map below
google.maps.event.addDomListener(window, 'load', init);
function init() {
// Basic options for a simple Google Map
// For more options see: https://developers.google.com/maps/documentation/javascript/reference#MapOptions
var mapOptions = {
// How zoomed in you want the map to start at (always required)
zoom: 11,
// The latitude and longitude to center the map (always required)
center: new google.maps.LatLng(40.6700, -73.9400), // New York
// How you would like to style the map.
// This is where you would paste any style found on Snazzy Maps.
styles: [{"featureType":"all","elementType":"geometry.fill","stylers":[{"weight":"2.00"}]},{"featureType":"all","elementType":"geometry.stroke","stylers":[{"color":"#9c9c9c"}]},{"featureType":"all","elementType":"labels.text","stylers":[{"visibility":"on"}]},{"featureType":"landscape","elementType":"all","stylers":[{"color":"#f2f2f2"}]},{"featureType":"landscape","elementType":"geometry.fill","stylers":[{"color":"#ffffff"}]},{"featureType":"landscape.man_made","elementType":"geometry.fill","stylers":[{"color":"#ffffff"}]},{"featureType":"poi","elementType":"all","stylers":[{"visibility":"off"}]},{"featureType":"road","elementType":"all","stylers":[{"saturation":-100},{"lightness":45}]},{"featureType":"road","elementType":"geometry.fill","stylers":[{"color":"#eeeeee"}]},{"featureType":"road","elementType":"labels.text.fill","stylers":[{"color":"#7b7b7b"}]},{"featureType":"road","elementType":"labels.text.stroke","stylers":[{"color":"#ffffff"}]},{"featureType":"road.highway","elementType":"all","stylers":[{"visibility":"simplified"}]},{"featureType":"road.arterial","elementType":"labels.icon","stylers":[{"visibility":"off"}]},{"featureType":"transit","elementType":"all","stylers":[{"visibility":"off"}]},{"featureType":"water","elementType":"all","stylers":[{"color":"#46bcec"},{"visibility":"on"}]},{"featureType":"water","elementType":"geometry.fill","stylers":[{"color":"#c8d7d4"}]},{"featureType":"water","elementType":"labels.text.fill","stylers":[{"color":"#070707"}]},{"featureType":"water","elementType":"labels.text.stroke","stylers":[{"color":"#ffffff"}]}]
};
// Get the HTML DOM element that will contain your map
// We are using a div with id="map" seen below in the <body>
var mapElement = document.getElementById('map');
// Create the Google Map using our element and options defined above
var map = new google.maps.Map(mapElement, mapOptions);
// Let's also add a marker while we're at it
var marker = new google.maps.Marker({
position: new google.maps.LatLng(40.6700, -73.9400),
map: map,
title: 'Snazzy!'
});
}
</script>
</head>
<body>
<h1>Snazzy Maps Super Simple Example</h1>
<h2>WY</h2>
<!-- The element that will contain our Google Map. This is used in both the Javascript and CSS above. -->
<div id="map"></div>
</body>
</html>
To set the style using Gmaps library, you need to define the styles and then set it to the current map as below:
const map = new GMaps({ el: '#map', lat: 0, lng: 0 });
var styles = [
{
stylers: [
{ hue: "#00ffe6" },
{ saturation: -20 }
]
}, {
featureType: "road",
elementType: "geometry",
stylers: [
{ lightness: 100 },
{ visibility: "simplified" }
]
}, {
featureType: "road",
elementType: "labels",
stylers: [
{ visibility: "off" }
]
}
];
map.addStyle({
styledMapName:"Styled Map",
styles: styles,
mapTypeId: "map_style"
});
map.setStyle("map_style");
Reference:
https://github.com/hpneo/gmaps/blob/master/examples/styled_maps.html
I have a google maps piece of code that gets my current location to a fixed destination but the width and height of the view wont stay the same after i click on the button to get the directions and it looks very unprofessional
The width and height changes once i click on the button. I want the size of the maps to stay the same as before i click the button and once i click the button the size of the maps should remain the same as before and not change
This is the code i have:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<h2>Our Location</h2>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=AIzaSyC6v5-2uaq_wusHDktM9ILcqIrlPtnZgEk&sensor=false">
</script>
<script type="text/javascript">
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(success);
} else {
alert("There is Some Problem on your current browser to get Geo Location!");
}
function success(position) {
var lat = position.coords.latitude;
var long = position.coords.longitude;
var city = position.coords.locality;
var LatLng = new google.maps.LatLng(lat, long);
var mapOptions = {
center: LatLng,
zoom: 12,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("MyMapLOC"), mapOptions);
var marker = new google.maps.Marker({
position: LatLng,
title: "<div style = 'height:60px;width:200px'><b>You Are Here:</b><br />Latitude: "
+ lat + +"<br />Longitude: " + long
});
marker.setMap(map);
var getInfoWindow = new google.maps.InfoWindow({ content: "<b>Your Current Location</b><br/> Latitude:" +
lat + "<br /> Longitude:" + long + ""
});
getInfoWindow.open(map, marker);
}
</script>
<script type="text/javascript">
function SearchRoute() {
document.getElementById("MyMapLOC").style.display = 'none';
var markers = new Array();
var myLatLng;
//Find the current location of the user.
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(p) {
var myLatLng = new google.maps.LatLng(p.coords.latitude, p.coords.longitude);
var m = {};
m.title = "Your Current Location";
m.lat = p.coords.latitude;
m.lng = p.coords.longitude;
markers.push(m);
//Find Destination address location.
var address = document.getElementById("txtDestination").value;
var geocoder = new google.maps.Geocoder();
geocoder.geocode({ 'address': address }, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
m = {};
m.title = address;
m.lat = results[0].geometry.location.lat();
m.lng = results[0].geometry.location.lng();
markers.push(m);
var mapOptions = {
center: myLatLng,
zoom: 4,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("MapRoute"), mapOptions);
var infoWindow = new google.maps.InfoWindow();
var lat_lng = new Array();
var latlngbounds = new google.maps.LatLngBounds();
for (i = 0; i < markers.length; i++) {
var data = markers[i];
var myLatlng = new google.maps.LatLng(data.lat, data.lng);
lat_lng.push(myLatlng);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: data.title
});
latlngbounds.extend(marker.position);
(function(marker, data) {
google.maps.event.addListener(marker, "click", function(e) {
infoWindow.setContent(data.title);
infoWindow.open(map, marker);
});
})(marker, data);
}
map.setCenter(latlngbounds.getCenter());
map.fitBounds(latlngbounds);
//***********ROUTING****************//
//Initialize the Path Array.
var path = new google.maps.MVCArray();
//Getting the Direction Service.
var service = new google.maps.DirectionsService();
//Set the Path Stroke Color.
var poly = new google.maps.Polyline({ map: map, strokeColor: '#4986E7' });
//Loop and Draw Path Route between the Points on MAP.
for (var i = 0; i < lat_lng.length; i++) {
if ((i + 1) < lat_lng.length) {
var src = lat_lng[i];
var des = lat_lng[i + 1];
path.push(src);
poly.setPath(path);
service.route({
origin: src,
destination: des,
travelMode: google.maps.DirectionsTravelMode.DRIVING
}, function(result, status) {
if (status == google.maps.DirectionsStatus.OK) {
for (var i = 0, len = result.routes[0].overview_path.length; i < len; i++) {
path.push(result.routes[0].overview_path[i]);
}
} else {
alert("Invalid location.");
window.location.href = window.location.href;
}
});
}
}
} else {
alert("Request failed.")
}
});
});
}
else {
alert('Some Problem in getting Geo Location.');
return;
}
}
</script>
</head>
<body>
<form id="SetDirections">
<p>Directions To Elena's Delicacies</p>
<p>
<b>Elena's Delicacies Address:</b>
<input type="text" id="txtDestination" value="499 Paradise Valey Pinetown" style="width: 300px"disabled readonly />
<input type="button" value="Directions" onclick="SearchRoute()" />
</p>
<div id="MyMapLOC" style="width: 100%; height: 600px">
</div>
<div id="MapRoute" style="width: 500px; height: 500px">
</div>
</form>
</body>
</html>
I have written a Google Fusion Tables script I'm happy with (below), but it's loading only 500 rows of points in my table, which has over 20,000 rows. This is my first time in this neighborhood and I was really surprised to find the limit. Is there some way to load all the rows?
<!doctype html>
<html class="no-js" lang="en">
<head>
<meta charset="utf-8">
<meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible">
<title>Points in box</title>
<link href="./stylesheets/example.css" media="screen" rel="stylesheet" type="text/css" />
<link rel="shortcut icon" href="/images/favicon.ico" />
<noscript><meta http-equiv="refresh" content="0;url=/no_javascript.html"></noscript>
<!-- Find box coordinates javascript -->
<script type ="text/javascript" src="http://www.movable-type.co.uk/scripts/latlon.js"></script>
<!-- Type label text javascript -->
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="./js/label.js"></script>
<!-- Visulization javascript -->
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<!-- Initialize visualization -->
<script type="text/javascript">
google.load('visualization', '1', {});
</script>
</head>
<body class="developers examples examples_downloads examples_downloads_points-in-box examples_downloads_points-in-box_index">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
var store_table = 4121905;
//send a call to GViz to retrieve lat/long coordinates of the stores
function getStoreData() {
//set the query using the input from the user
var queryText = encodeURIComponent("SELECT Latitude,Longitude,Impressions FROM " + store_table);
var query = new google.visualization.Query('http://www.google.com/fusiontables/gvizdata?tq=' + queryText);
//set the callback function
query.send(doLoop);
}
function drawBox(topleftx, toplefty, bottomrightx, bottomrighty) {
var bounds = new google.maps.LatLngBounds(
new google.maps.LatLng( topleftx, toplefty ),
new google.maps.LatLng( bottomrightx, bottomrighty )
);
var overlay = new google.maps.Rectangle({
map: carto_map,
bounds: bounds,
strokeColor: "#0000ff",
strokeOpacity: 0.20,
strokeWeight: 2,
fillColor: "#0000ff",
fillOpacity: 0.050,
});
}
function doLoop(response) {
numRows = response.getDataTable().getNumberOfRows();
//Basic
var cartodbMapOptions = {
zoom: 7,
center: new google.maps.LatLng( 37.926868, -121.68457 ),
// center: new google.maps.LatLng( 40.7248057566452, -74.003 ),
// disableDefaultUI: true,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
// Init the map
carto_map = new google.maps.Map(document.getElementById("map"),cartodbMapOptions);
for(i = 0; i < numRows; i++) {
var centerX = response.getDataTable().getValue(i,0);
var centerY = response.getDataTable().getValue(i,1);
var imps = response.getDataTable().getValue(i,2);
var centerPoint = new LatLon(centerX,centerY);
var latLng = new google.maps.LatLng(centerX,centerY);
var toplefty = centerPoint.destinationPoint(-45, 6)._lon;
var topleftx = centerPoint.destinationPoint(-45, 7.7)._lat;
var bottomrighty = centerPoint.destinationPoint(135, 6)._lon;
var bottomrightx = centerPoint.destinationPoint(135, 7.7)._lat;
drawBox(topleftx, toplefty, bottomrightx, bottomrighty);
var marker = new google.maps.Marker({
position: latLng,
draggable: false,
markertext: imps,
flat: true,
map: carto_map
});
var label = new Label({
map: carto_map,
position: latLng,
draggable: true
});
label.bindTo('text', marker, 'markertext');
marker.setMap(null);
}
}
$(function() {
getStoreData();
});
</script>
<div id="map"></div>
</body>
</html>
I solved the problem by using the json call method. Code below.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>David's Build Up</title>
<link href="./stylesheets/example.css" media="screen" rel="stylesheet" type="text/css" />
<link rel="shortcut icon" href="/images/favicon.ico" />
<noscript><meta http-equiv="refresh" content="0;url=/no_javascript.html"></noscript>
<!-- Find box coordinates javascript -->
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js">
</script>
<script type ="text/javascript" src="http://www.movable-type.co.uk/scripts/latlon.js"></script>
<!-- Type label text javascript -->
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="./js/label.js"></script>
<!-- Visulization javascript -->
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<!-- Initialize visualization -->
<script type="text/javascript">
google.load('visualization', '1', {});
</script>
<script type="text/javascript">
function drawBox(topleftx, toplefty, bottomrightx, bottomrighty) {
var bounds = new google.maps.LatLngBounds(
new google.maps.LatLng( topleftx, toplefty ),
new google.maps.LatLng( bottomrightx, bottomrighty )
);
var overlay = new google.maps.Rectangle({
map: carto_map,
bounds: bounds,
strokeColor: "#0000ff",
strokeOpacity: 0.20,
strokeWeight: 2,
fillColor: "#0000ff",
fillOpacity: 0.050,
});
}
function initialize() {
// Set the map parameters
var cartodbMapOptions = {
zoom: 5 ,
center: new google.maps.LatLng( 40.313043, -97.822266 ),
mapTypeId: google.maps.MapTypeId.ROADMAP
}
// Initialize the map
carto_map = new google.maps.Map(document.getElementById("map"),cartodbMapOptions);
// Query to grab the data
var query = "SELECT Latitude, Longitude, Impressions FROM " +
'[encrypted table ID here]';
var encodedQuery = encodeURIComponent(query);
// Construct the URL to grab the data
var url = ['https://www.googleapis.com/fusiontables/v1/query'];
url.push('?sql=' + encodedQuery);
url.push('&key=AIzaSyAm9yWCV7JPCTHCJut8whOjARd7pwROFDQ');
url.push('&callback=?');
// Set the number of rows
var numRows = 3500;
// Get the variables from the table, in a loop
$.ajax({
url: url.join(''),
dataType: 'jsonp',
success: function (data) {
var rows = data['rows'];
var ftData = document.getElementById('ft-data');
for (var i in rows) {
var centerX = rows[i][0];
var centerY = rows[i][1];
var imps = rows[i][2];
// Set the center points
var centerPoint = new LatLon(centerX,centerY);
var latLng = new google.maps.LatLng(centerX,centerY);
// Set top left points
var toplefty = centerPoint.destinationPoint(-45, 6)._lon;
var topleftx = centerPoint.destinationPoint(-45, 7.7)._lat;
// Set bottom right points
var bottomrighty = centerPoint.destinationPoint(135, 6)._lon;
var bottomrightx = centerPoint.destinationPoint(135, 7.7)._lat;
// Draw the box
drawBox(topleftx, toplefty, bottomrightx, bottomrighty);
// Drop markers
var marker = new google.maps.Marker({
position: latLng,
draggable: false,
markertext: imps,
flat: true,
map: carto_map
});
var label = new Label({
map: carto_map,
position: latLng,
draggable: true
});
label.bindTo('text', marker, 'markertext');
marker.setMap(null);
};
}
});
}
</script>
</head>
<body onload="initialize()">
<div id="map"></div>
<div id="ft-data"></div>
</body>
</html>
The Gviz API does have a 500 row limit for a given query.
Any table is limited to 100,000 mappable rows, but that's well outside your reported 20,000 rows.
The new Javascript API, currently accepting Trusted Testers, offers JSON format support for any number of rows returned for a query. You can apply for the TT program by requesting membership in this group:
https://groups.google.com/group/fusion-tables-api-trusted-testers
-Rebecca
The fusiontables/gvizdata URL is intended for Gviz charts and so is limited to 500 points. There are other ways to query that don't have that limitation. See https://developers.google.com/fusiontables/docs/sample_code for examples.
I routinely refresh a 2500 row table by deleting all rows and inserting new ones. The loop in my code that constructs the INSERT sql has a nested loop that just counts to 400, sends that sql, and then starts building another one with the next 400 records.