Can someone tell me why I can't see the marker on this map?
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map_canvas { height: 100% }
</style>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?keykey=AIzaSyBG47z_ebM8I6Ic2-rXL8QiPN5CHCOBwco&sensor=true"></script>
<script type="text/javascript">
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(37.998727,-0.686259),
zoom: 18,
minZoom: 4,
maxZoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP,
streetViewControl: false
};
var map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
}
var marker = new google.maps.Marker({
position: new google.maps.LatLng(37.998727,-0.686259),
map: map
});
</script>
<body onload="initialize()">
<div id="map_canvas" style="width:600px; height:600px;"></div>
Look in your browser's error console:
Uncaught ReferenceError: map is not defined
You need to expose that variable, since map is not currently visible outside of the scope of initialize(). Or, move the marker code into initialize():
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(37.998727,-0.686259),
zoom: 18,
minZoom: 4,
maxZoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP,
streetViewControl: false
};
var map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
var marker = new google.maps.Marker({
position: new google.maps.LatLng(37.998727,-0.686259),
map: map
});
}
Related
I am new to Arcgis maps and using ArcGIS Javascript 4.2 library. Currently the features are showing up on the map and I am trying to go to feature and open it's popup programmatically. below is my code to query the features which is working fine.
var query = layer.createQuery();
query.where = "key= " + dataItem.key+ "";
query.returnGeometry = true;
query.returnCentroid = true;
query.returnQueryGeometry = true;
layer.queryFeatures(query).then(function (results) {
//I am getting the feature results here.
//trying to navigate to feature and open popup
});
Note: I tried using the following code from documentation which is working fine but I don't have the center as the features are polylines in my case.
view.goTo({center: [-126, 49]})
First, View goTo method has several options, including just using a geometry wich I think would be a better option for your case, zoom to a polyline.
Second to open the popup you just need to use the open method and you can pass there the features to show.
Check this example I put for you, has both suggestions,
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
<title>ArcGIS API for JavaScript Hello World App</title>
<style>
html,
body {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
#selectDiv {
height: 30px;
width: 100%;
margin: 5px;
}
#cableNameSelect {
height: 30px;
width: 300px;
}
#cableGoToButton {
height: 30px;
width: 100px;
}
#viewDiv {
height: 500px;
width: 100%;
}
</style>
<link rel="stylesheet" href="https://js.arcgis.com/4.15/esri/css/main.css">
</head>
<body>
<div id="selectDiv">
<select id="cableNameSelect"></select>
<button id="cableGoToButton">GO TO</button>
</div>
<div id="viewDiv">
</div>
<script src="https://js.arcgis.com/4.15/"></script>
<script>
require([
'esri/Map',
'esri/views/MapView',
'esri/layers/FeatureLayer'
], function (Map, MapView, FeatureLayer) {
const cableNameSelect = document.getElementById("cableNameSelect");
const cableGoToButton = document.getElementById("cableGoToButton");
const map = new Map({
basemap: 'hybrid'
});
const view = new MapView({
container: 'viewDiv',
map: map,
zoom: 10,
center: {
latitude: 47.4452,
longitude: -121.4234
}
});
view.popup.set("dockOptions", {
buttonEnabled: false,
position: "top-right"
});
const layer = new FeatureLayer({
url: "https://services.arcgis.com/V6ZHFr6zdgNZuVG0/ArcGIS/rest/services/cables/FeatureServer/0",
popupTemplate: {
title: "{NAME}",
outFields: ["*"],
content: [{
type: 'fields',
fieldInfos: [
{
fieldName: "length"
},
{
fieldName: "owners"
},
{
fieldName: "rfs"
}
]
}],
}
});
map.add(layer);
layer.queryFeatures({
where: "1=1",
outFields: ["Name"],
returnGeometry: false
}).then(function(results) {
for(const graphic of results.features) {
cableNameSelect.appendChild(new Option(graphic.attributes.Name, graphic.attributes.Name));
}
});
cableGoToButton.onclick = function() {
if (!cableNameSelect.value) {
return;
}
cableGoToButton.disabled = true;
layer.queryFeatures({
where: `Name='${cableNameSelect.value}'`,
outFields: ["*"],
returnGeometry: true
}).then(function (results) {
cableGoToButton.disabled = false;
if (!results.features) {
return;
}
view.goTo(results.features[0].geometry);
view.popup.open({
features: [results.features[0]]
})
})
};
});
</script>
</body>
</html>
When zooming in, all features disappear. The features are on either side of the antimeridian. In order to be able to use modify interaction, the geographical lengths of some features exceed the value of 180 degrees.
Any help is welcome!
var coords = [
[32100000, -7900000],
[28900000, -9700000],
[26300000, -10000000],
[23800000, -9300000],
[20400000, -6500000]
];
var osmLayer = new ol.layer.Tile({
source: new ol.source.OSM()
});
var featuresLayer = new ol.layer.Vector({
source: new ol.source.Vector()
});
var map = new ol.Map({
layers: [osmLayer, featuresLayer],
target: document.getElementById("map")
});
var s = featuresLayer.getSource();
for (var i = 0; i < coords.length; i++) {
s.addFeature(new ol.Feature({
geometry: new ol.geom.Point(coords[i])
}));
}
map.setView(new ol.View({
center: coords[parseInt(coords.length / 2)],
zoom: 3,
maxZoom: 18,
minZoom: 3
}));
html,
body,
.map {
width: 100%;
height: 100%;
overflow: hidden;
}
<link href="https://cdn.jsdelivr.net/gh/openlayers/openlayers.github.io#master/en/v6.5.0/css/ol.css" rel="stylesheet"/>
<script src="https://cdn.jsdelivr.net/gh/openlayers/openlayers.github.io#master/en/v6.5.0/build/ol.js"></script>
<div id="map" class="map"></div>
Per #Mike's comment, use new ol.source.Vector({wrapX: false}) if your coordinates exceed the normal world
var featuresLayer = new ol.layer.Vector({
source: new ol.source.Vector({wrapX: false})
});
updated code snippet:
var coords = [
[32100000, -7900000],
[28900000, -9700000],
[26300000, -10000000],
[23800000, -9300000],
[20400000, -6500000]
];
var osmLayer = new ol.layer.Tile({
source: new ol.source.OSM()
});
var featuresLayer = new ol.layer.Vector({
source: new ol.source.Vector({wrapX: false})
});
var map = new ol.Map({
layers: [osmLayer, featuresLayer],
target: document.getElementById("map")
});
var s = featuresLayer.getSource();
for (var i = 0; i < coords.length; i++) {
s.addFeature(new ol.Feature({
geometry: new ol.geom.Point(coords[i])
}));
}
map.setView(new ol.View({
center: coords[parseInt(coords.length / 2)],
zoom: 3,
maxZoom: 18,
minZoom: 3
}));
html,
body,
.map {
width: 100%;
height: 100%;
overflow: hidden;
}
<link href="https://cdn.jsdelivr.net/gh/openlayers/openlayers.github.io#master/en/v6.5.0/css/ol.css" rel="stylesheet"/>
<script src="https://cdn.jsdelivr.net/gh/openlayers/openlayers.github.io#master/en/v6.5.0/build/ol.js"></script>
<div id="map" class="map"></div>
I want to embed on my website multiple streams from twitch and sort them according to status (online,offline).
<script src= "https://player.twitch.tv/js/embed/v1.js"></script>
<div id="SamplePlayerDivID"></div>
<script type="text/javascript">
var options = {
width: 854,
height: 480,
autoplay:true,
channel: "channelTest1",
};
var options2 = {
width: 854,
height: 480,
autoplay:true,
channel: "channelTest2",
};
var player = new Twitch.Player("SamplePlayerDivID", options);
var player2 = new Twitch.Player("SamplePlayerDivID2", options2);
player.setVolume(0.5);
</script>
Is this correct way , and is it possible to solve like this?
Do you have any idea how to move the marker with the coordinates or URL? now when I click on 'Google' down on the map Photo the marker disappears.
I have an example here:
var map;
function initialize() {
var myLatlng = new google.maps.LatLng(48.8164526,-4.140963);
var mapOptions = {
zoom: 15,
center: myLatlng
};
map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: 'Compacc Complete Accountancy'
});
}
google.maps.event.addDomListener(window, 'load', initialize);
html, body, #map-canvas {
height: 100%;
margin: 0;
padding: 0;
}
<div id="map-canvas"></div>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false" type="text/javascript"></script>
`
How can I show the marker on "The original Google map"?
Can you please take a look at this JSFiddle and let me know why I am not able to add the Market into the Map? I am getting this error
Uncaught TypeError: Cannot read property 'add' of null
Here is the ode I have
var map;
var graphicsArray = [];
require(["esri/map",
"esri/geometry/Geometry",
"esri/geometry/Point",
"esri/geometry/Polyline",
"esri/geometry/Polygon",
"esri/graphic",
"esri/symbols/SimpleMarkerSymbol",
"esri/symbols/SimpleLineSymbol",
"esri/symbols/SimpleFillSymbol",
"esri/Color",
"esri/InfoTemplate",
"dojo/domReady!",
"esri/geometry"], function (Map,
Geometry,
Point,
Polyline,
Polygon,
Graphic,
SimpleMarkerSymbol,
SimpleLineSymbol,
SimpleFillSymbol,
Color,
InfoTemplate) {
map = new Map("map", {
basemap: "topo",
center: [-106.61, 35.1107],
zoom: 13
});
var point = new Point(-106.61, 35.1107);
var pointSymbol = new SimpleMarkerSymbol();
var pointAttributes = { city: "Albuquerque", state: "New Mexico" };
var pointInfoTemplate = new InfoTemplate("Albuquerque");
var pointGraphic = new Graphic(point, pointSymbol, pointAttributes).setInfoTemplate(pointInfoTemplate);
graphicsArray.push(pointGraphic);
for (i = 0; i < graphicsArray.length; ++i) {
map.graphics.add(graphicsArray[i]);
}
});
html, body, #map {
height: 100%;
width: 100%;
margin: 0;
padding: 0;
}
body {
background-color: #FFF;
overflow: hidden;
font-family:"Trebuchet MS";
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="http://js.arcgis.com/3.14/esri/css/esri.css">
<script src="http://js.arcgis.com/3.14/"></script>
<div id="map"></div>
You are trying to add this point when the map isn't fully loaded.
So just wait for the map to be fully loaded and then add the point, by wrapping your loop inside this function:
map.on('load', function() {
console.log('load event called');
for (i = 0; i < graphicsArray.length; ++i) {
map.graphics.add(graphicsArray[i]);
}
});
ESRI has a small documentation on how to work with events here