I'm trying to make the map move inside it, dragging the map to the side, so I can get around the map.
But this is only being possible onmousedown on map1, when choosing map2 the map does not move, it is not possible to drag it.
When clicking on the map1 button the map appears and it is possible to move within it, but after I click on the map2 button it is no longer possible to move within the map.
Follow the code of what is happening.
How could this be fixed?
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Map</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://unpkg.com/leaflet#1.6.0/dist/leaflet.css"/>
<script src="https://unpkg.com/leaflet#1.6.0/dist/leaflet.js"></script>
</head>
<body>
<div style="margin: 10px">
<button onclick="maps(['New York', 40.6971494, -74.2598757])">Map 1</button>
</div>
<div style="margin: 10px">
<button onclick="maps(['London', 51.528308, -0.3817849])">Map 2</button>
</div>
<div id="mapid" style="width: 200px; height: 200px; margin: 10px"></div>
<script>
function maps(location) {
var container = L.DomUtil.get('mapid');
if(container != null){
container._leaflet_id = null;
}
var map = L.map( 'mapid', {
center: [location[1], location[2]],
minZoom: 2,
zoom: 13
});
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
attribution: '© OpenStreetMap contributors'
}).addTo(map);
var m = L.marker([location[1], location[2]]).addTo(map).bindPopup(location[0])
}
</script>
</body>
</html>
I found the problem, I needed to change the way the map was initialized, follow the code below:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Map</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://unpkg.com/leaflet#1.6.0/dist/leaflet.css"/>
<script src="https://unpkg.com/leaflet#1.6.0/dist/leaflet.js"></script>
</head>
<body>
<div style="margin: 10px">
<button onclick="maps(['New York', 40.6971494, -74.2598757])">Map 1</button>
</div>
<div style="margin: 10px">
<button onclick="maps(['London', 51.528308, -0.3817849])">Map 2</button>
</div>
<div id="mapid" style="width: 200px; height: 200px; margin: 10px"></div>
<script>
var map = null; //added
function maps(location) {
//var container = L.DomUtil.get('mapid'); //removed
//if(container != null){ //removed
// container._leaflet_id = null; //removed
//}
if (map !== undefined && map !== null) { map.remove(); }//added
map = L.map( 'mapid', { //alterated
center: [location[1], location[2]],
minZoom: 2,
zoom: 13
});
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
attribution: '© OpenStreetMap contributors'
}).addTo(map);
var m = L.marker([location[1], location[2]]).addTo(map).bindPopup(location[0])
}
</script>
</body>
</html>
Related
I'm just trying to do a simple map using the Leaflet.js libraries directly instead of the python wrappers(ipyleaflet, folium) but I can't any map to display regardless of what I do. the map area is drawn the correct size with the zoom controls, as are the tile attributions, and a marker in the right location. I have tried multiple browsers and also in QWebEngineView as well as different tile sets. I've also tried both the hosted js and css scripts as well as local copies The results are the same. Everything with the same v1.7.1 release though.
Here is the html code:
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title></title>
<link rel="stylesheet" href="leaflet.css" />
<script src="leaflet.js"></script>
<!-- <link rel="stylesheet" href="https://unpkg.com/leaflet#1.7.1/dist/leaflet.css" integrity="sha512-xodZBNTC5n17Xt2atTPuE1HxjVMSvLVW9ocqUKLsCC5CXdbqCmblAshOMAS6/keqq/sMZMZ19scR4PsZChSR7A==" crossorigin="" />
<script src="https://unpkg.com/leaflet#1.7.1/dist/leaflet.js" integrity="sha512-XQoYMqMTK8LvdxXYG3nZ448hOEQiglfqkJs1NOQV44cWnUrBc8PkAOcXy20w0vlaXaVUearIOBhiXZ5V3ynxwA==" crossorigin=""></script>
-->
<style>
#map {
width: 900px;
height: 400px;
}
</style>
</head>
<body>
<div id="map"></div>
<script>
var layer = L.tileLayer('https://api.mapbox.com/styles/v1/{id}/tiles/{z}/{x}/{y}?access_token={accessToken}', {
attribution: 'Map data © OpenStreetMap contributors, Imagery © Mapbox',
maxZoom: 18,
id: 'mapbox/satellite-v9',
tileSize: 512,
zoomOffset: -1,
accessToken: 'your.mapbox.access.token'
});
var mymap = L.map('map', { preferCanvas: true, center: [43.08695, -73.75792], layers: [layer], zoom: 10 });
var mymarker = L.marker([43.08695, -73.75792], { draggable: true }).addTo(mymap)
</script>
</body>
</html
Here's a screenshot
Anybody got any ideas? This ought to be something really simple...
I try to run MapBox under Blazor , using the next library
https://api.tiles.mapbox.com/mapbox-gl-js/v1.5.0/mapbox-gl.js
When I delete the line (from default app)
<script src="_framework/blazor.server.js"></script>
MapBox library works , except events. When i restore that line then events works, but the map disappear
How to fix the problem?
_host.cshtml:
#page "/"
#namespace BlazorApp3.Pages
#addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>BlazorApp3</title>
<base href="~/" />
<link rel="stylesheet" href="css/bootstrap/bootstrap.min.css" />
<link href="css/site.css" rel="stylesheet" />
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v1.5.0/mapbox-gl.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v1.5.0/mapbox-gl.css' rel='stylesheet' />
<style>
#map {
position: absolute;
top: 0;
bottom: 0;
width: 85%;
height: 100%;
}
</style>
</head>
<body>
<app>
#(await Html.RenderComponentAsync<App>(RenderMode.ServerPrerendered))
</app>
<script>
mapboxgl.accessToken = 'pk.eyJ1IjoidGVyZW50ZXYiLCJhIjoiY2sycDN1Z21zMDBheTNrbzZ2aG42aWUyMiJ9._2hucdk7L6jhzEHE6LGv9A';
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/terentev/ck2so0c4h1q5x1cqow0aj9nh8',
center: [34.047, 63.779],
zoom: 4.41
});
</script>
<script src="_framework/blazor.server.js"></script>
</body>
</html>
index.razor:
#page "/"
<div id='map'></div>
Did so:
#page "/"
#inject IJSRuntime JSRuntime;
<div id='map'></div>
#code {
protected override void OnAfterRender(bool firstRender)
{
JSRuntime.InvokeVoidAsync("mapBoxFunctions.initMapBox");
}
}
P.S. I noticed that despite the fact that the site seems to work fine, but in the console you can see an error at startup
Can't anybody say how to fix the problem.
After publishing the application - no error is visible in the browser
I am using Mapbox API to create simple maps and learn. I have written a very simple code to display the centre on some coordinates but the map won't show.
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>A simple map</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox.js/v2.1.5/mapbox.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox.js/v2.1.5/mapbox.css' rel='stylesheet' />
<style>
body { margin:0; padding:0; }
#map { position:absolute; top:0; bottom:0; width:100%; }
</style>
</head>
<body>
<div id='map'></div>
<script>
L.mapbox.accessToken = 'pk.eyJ1Ijoicm9oYW4wNzkzIiwiYSI6IjhFeGVzVzgifQ.MQBzoHJmjH19bXDW0b8nKQ';
var map = L.mapbox.map('map', {
center: [28.611690, 77.191008],
zoom: 13
});
</script>
</body>
</html>
What am I doing wrong here?
You're using the wrong parameters for L.mapbox.map, the first element is correct, that's for the ID of a HTML element or a reference to an HTML element. The second however, isn't for the options object. The second is for your mapbox mapid (or url, or tilejson), which you get when you create your own map via the Mapbox editor: https://www.mapbox.com/editor/#app The third parameter is for the options object.
L.mapbox.accessToken = 'pk.eyJ1IjoicGF1bC12ZXJob2V2ZW4iLCJhIjoiZ1BtMWhPSSJ9.wQGnLyl1DiuIQuS0U_PtiQ';
var map = L.mapbox.map('map', 'examples.map-i86nkdio', {
center: [28.611690, 77.191008],
zoom: 13
});
I updated leaflet elevation example gpx just changing the gox name, working locally on win 7 or OS X and Safari or Chrome. Nothing shows up.
var map = new L.Map('map');
var url = 'http://otile{s}.mqcdn.com/tiles/1.0.0/map/{z}/{x}/{y}.jpeg',
attr ='Tiles Courtesy of MapQuest — Map data © OpenStreetMap contributors, CC-BY-SA',
service = new L.TileLayer(url, {subdomains:"1234",attribution: attr});
var el = L.control.elevation();
el.addTo(map);
var g=new L.GPX("./maggiore.gpx", {
async: true,
marker_options: {
startIconUrl: './lib/leaflet-gpx/pin-icon-start.png',
endIconUrl: './lib/leaflet-gpx/pin-icon-end.png',
shadowUrl: './lib/leaflet-gpx/pin-shadow.png'
}
});
g.on('loaded', function(e) {
map.fitBounds(e.target.getBounds());
});
g.on("addline",function(e){
el.addData(e.line);
});
g.addTo(map);
map.addLayer(service);
<link href="http://cdn.leafletjs.com/leaflet-0.7.2/leaflet.css" rel="stylesheet"/>
<head>
<title>Leaflet.Elevation</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style>
html, body, #map {
height:100%;
width:100%;
padding:0px;
margin:0px;
}
</style>
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.2/leaflet.css" />
<!--[if lte IE 8]><link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.2/leaflet.ie.css" /><![endif]-->
<link rel="stylesheet" href="../dist/Leaflet.Elevation-0.0.2.css" />
<script type="text/javascript" src="http://cdn.leafletjs.com/leaflet-0.7.2/leaflet.js"></script>
<script type="text/javascript" src="../dist/Leaflet.Elevation-0.0.2.min.js"></script
><script type="text/javascript" src="./lib/leaflet-gpx/gpx.js"></script>
</head>
<body>
<div id="map"></div>
All I get is a grey page with zoom control and an empty diagram
do you have the leaftlet.elevation dist files ?
looking at your example you have :
<link rel="stylesheet" href="../dist/Leaflet.Elevation-0.0.2.css" />
<script type="text/javascript" src="../dist/Leaflet.Elevation-0.0.2.min.js"></script
you may copy these files to the lib folder.
I built a heatmap on Leaflet.
My first goal is to see the heatmap when you open the map. The second goal is not to view the heatmap if the zoom level is greater than 9.
I tried this :
if (map.getZoom() >9 {
map.removeLayer (heatmapLayer);
};
But it did not work.
Would you have any suggestions ?
Thanks !
Here is the code :
<!DOCTYPE html>
<html lang="en">
<head>
<title>Application - version 1.0</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.6.3/leaflet.css" />
<link rel="stylesheet" href="style_p.css" />
<style type="text/css">
html, body, #map {
margin: 0;
margin-top: 0%;
width: 100%;
height: 100%;
};
</style>
</head>
<!-- Favicon -->
<link rel="icon" href="california.ico" />
<body>
<div id="map"></div>
<script src="http://cdn.leafletjs.com/leaflet-0.6.3/leaflet-src.js"></script>
<script src="http://maps.google.com/maps/api/js?v=3.2&sensor=false"></script>
<script src="jquery.js"></script>
<script type="text/javascript" src="heatmap.js"></script>
<script type="text/javascript" src="heatmap-leaflet.js"></script>
<script type="text/javascript" src="sloopjohnb.js"></script>
<script src="google.js"></script>
<script src="leaflet_search.js"></script>
<script type="text/javascript" charset="utf-8">
$(function() {
var osm = new L.TileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png');
var base = new L.TileLayer('http://129.206.74.245:8001/tms_r.ashx?x={x}&y={y}&z={z}');
var ggl2 = new L.Google('SATELLITE');
var heatmapLayer;
heatmapLayer = L.TileLayer.heatMap({
radius: 10,
opacity: 0.8,
gradient: {
0.45: "rgb(0,0,255)",
0.55: "rgb(0,255,255)",
0.65: "rgb(0,255,0)",
0.95: "yellow",
1.0: "rgb(255,0,0)"
}
});
var Data1={
max: 1,
data: sloopjohnb
};
heatmapLayer.addData(Data1.data);
var baseMaps = {
"Fond OSM": osm,
"Fond de carte de base": base,
"Photo. aérienne Google" : ggl2
};
var overlayMaps = {
'Heatmap': heatmapLayer
};
map = new L.Map('map', {
minZoom : 1,
maxZoom : 11,
boxZoom : true,
layers: [base, heatmapLayer]
});
var controls = L.control.layers(baseMaps, overlayMaps, {position: 'bottomright'});
controls.addTo(map);
map.addControl(L.control.search());
L.control.scale().addTo(map);
map.attributionControl.addAttribution('Heatmap.js');
map.setView(new L.LatLng(39.291,-5.9765),2);
// Disparition de la heatmap en fct du zoom
map.on('zoomend', function () {
if (map.getZoom() > 9) {
map.removeLayer(heatmapLayer);
}
});
});
</script>
</body>
</html>
Are you sure you are creating the listener correctly?
For example, this seems like it should be called when the user zooms. So something like:
Edited
map.on('zoomend', function () {
if (map.getZoom() > 9 && map.hasLayer(heatmapLayer)) {
map.removeLayer(heatmapLayer);
}
if (map.getZoom() < 9 && map.hasLayer(heatmapLayer) == false)
{
map.addLayer(heatmapLayer);
}
});
If you ONLY want the layer added/removed based on zoom, don't add it to your layer control here:
var controls = L.control.layers(baseMaps, overlayMaps, {position: 'bottomright'});
controls.addTo(map);
You will just have to make sure you are doing your adding/removing when it is necessary. Try messing with this set up a little and see where you get. Also, the Documentation is well written regarding the use of L.tileLayer
You can use the leaflet-zoom-show-hide library to do it. This will automatically show/hide your layers as you zoom.
zsh = new ZoomShowHide(map);
var marker1 = L.marker([50.096, 14.425]);
// minzoom, maxzoom
zsh.addLayer(marker1, 10, 13);
var marker2 = L.marker([50.076, 14.425]);
zsh.addLayer(marker2, 8, null);