JavaScript is a prototype-based, object-oriented scripting language that is dynamic, weakly typed and has first-class functions.

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16 views

Rotate polygons in JavaScript using openlayers

First, thanks for answer my first question. Today, I want to know some ways for rotating polygons. I already success using spring and server, but what I want to do is rotating polygons using 'only' ...
3
votes
1answer
23 views

How to hyperlink from polygon oncick in Leaflet?

I want to hyperlink from onclick of a polygon to new tab based on 'link' field in polygon json. When user clicks on polygon, a new browser tab is opened pointing to URL value of that polygon. I am ...
2
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1answer
53 views

MapBox GL geoJSON markers disappear when custom style loaded

I am using this example to load geojson points to to a mapbox basemap. I view it on a browser locally and it works. When I change the style reference to my custom style, the style will display, ...
2
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1answer
20k views

Uncaught SyntaxError: Unexpected token : when using ajax

I try to call json data from geoserver, but when i try to run it in chrome, it return this following error "Uncaught SyntaxError: Unexpected token :" This is my code, function ...
3
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2answers
42 views

Vector under OSMbuildings

I would like to display a circle object under the OSMbuildings layer with OSMBuildings . I was trying to change zIndex, bringToBack(), bringToFront() but it doesn't work. I don't use my own GeoJSON ...
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0answers
31 views

AttributeInspector is not showing up on 'click' event using ArcGIS API for JS?

I'm creating a application to select features on event 'click' and then using AttributeInspector to edit the attribute fields. I'm also creating draw tools to select features on event click and ...
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1answer
701 views

How to let the user resize a Leaflet map <div>

I use Leaflet to display some map. I would like the user to be able to resize the map by dragging its borders as she likes. I would like to do this without additional Javascript libraries, instead by ...
2
votes
1answer
172 views

Control to select data source on Leaflet map

I am building a map using leaflet. My data source looks something like this: var districts = {"type": "FeatureCollection", "features": [ {"type":"Feature", "geometry": ...
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2answers
1k views

OpenLayers vector does not draw (or re-draw) on zoom level change or layerswitcher off/on

Here is the full code (i'll highlight the important parts after): jQuery(document).ready(function($) { // ...
2
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0answers
94 views

Setting multiple WMS layers over basemap of OpenLayers 3?

I'm developing a web-based application. In this project I'm trying to create multiple WMS image layer over the map with legends. As you can see below its showing the WMS layer over its basemap . ...
1
vote
1answer
577 views

Google Hybrid Map tiles won't load in OpenLayers when centered on certain position

Since the Google Maps API update to V3.2 (17 Feb 2015) our maps have not been loading to their initial state, centered over the Gulf of Mexico. When the center location is: center: new ...
2
votes
1answer
26 views

Mutually Exclusive Bootstrap Checkbox Switches as Layer Control

I have this JSFiddle with two checkboxes using Bootstrap Switch that change the layer visibility in Leaflet. I would like them to be mutually exclusive, i.e neither of them can be on or off at the ...
3
votes
1answer
184 views

Show Cartodb Maps infowindow on hover programatically

How do i get to show the cartodb infowindow when one hovers over a point? I see that it is possible via the gui but how can one do it via code? what method should i call on the on('featureOver') ...
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1answer
189 views

Leaflet: Find my “this” in GeoJSON.pointToLayer function

In leaflet, I have a class that extends L.GeoJSON: L.MyLayer = L.GeoJSON.extend ({ initialize: function () { this.markers = []; ... I redefined the pointToLayer method to create ...
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1answer
54 views

GeoJSON properties not displaying in popup-leaflet GeoDjango

I want to show the markers in different colours based on column(rastervalues) values in leaflet. My geojson data is {'geojson': "[{'type': 'FeatureCollection', 'features': [{'type': 'Feature', 'ge ...
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1answer
30 views

Change Bootstrap Switch Depending on Leaflet Layer Zoom

I have this JSFiddle that as you can see has two tile layers. I have set the minZoom of the 'Example Layer' to 5 so that it only loads once you have zoomed in that far. The issue is, using Bootstrap ...
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0answers
5 views

using two jquery lib in same page [migrated]

I'm creating custom page in which menu required other jquery lib and popup required another when i'm putting popup jquery at the end of code only popup function will but it stop my menu animation em ...
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0answers
24 views

How to show legends of wms image layer in openlayers3

I'm developing web based GIS application, in which I have to display number of WMS image layers over the map. So that when I am calling my first layer or any one of the layer, it should display with ...
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vote
1answer
773 views

How can I dynamically restrict pan extents on an image layer in OpenLayers 3?

I have been sandboxing with OpenLayers 3 and thus far have been happy with the results. I have used answers on this site to restrict my most zoomed out level from panning and to restrict the range of ...
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0answers
42 views

Access-Control-Allow-Origin in geoserver and ol2

Good morning, I m trying to get a pop up from my map with the getfeauture code. I tried to followed the following example. When i tried to run the code i get the following error in my console: ...
2
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0answers
27 views

How to display join query results on a sublayer in CartoDB.js application?

I'm working with my first CartoDB.js application. I created a visualization on the app using cartodb.createVis('map', visjson_url, opts); The app has two layers, base map and data layer. the data ...
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0answers
20 views

Apend child to a layertree with

I'm building an application with GeoExt 2 and I'm trying to create a tree layer with some grouped layers. I saw somewhere that you should set the node type to "gx_layer" to get the desired effect. ...
3
votes
2answers
640 views

Authentication in Geoserver 2.4.x from a web application

I am trying to build a web application using html and javascript from which I want to login to geoserver hosted at: https://weaveprod.ucdp.utah.edu/geoserver/web/ I have written the following code for ...
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1answer
33 views

OpenLayers 3 Vector layer

Can i add two sources to Vector layer, i want regular feature source, and geojson source? Maybe can I do something like: var layer = new ol.layer.Vector({source: VectorSource, GeoJsonSource}); My ...
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0answers
31 views

Extent goes too far

I have a custom tms tile loaded in a Open Layers 3 map. This tile has a bounding box, effectivly being the 4 corners of that tile. When I set the extent of the TileImage and View, I can only drag each ...
1
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0answers
14 views

Customize QGIS Leaflet webpage [closed]

I created a webpage QGIS map using the Leaflet plugins, how to customize , put mouse over, then features will zoom automatically while you mouse on click on the map features, and also automatically ...
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1answer
185 views

Date field formatting as number in ESRI popup window

We are using the Park and Recreation Locator from ArcGIS for State Government and trying to put a date field into the popup info window. The field is pulling the correct data, but it's formatting it ...
1
vote
2answers
49 views

Grouping polygons and other geometrical shapes

My situation: I have administrative areas marked with polygons Many areas have many, many, many islands I need main area and all it's islands to change color when any of the islands or main is ...
1
vote
1answer
198 views

How to obtain elevation value from given SRTM data on mouse click in web browser?

I need JavaScript code for obtaining elevation data from SRTM tiff image. I have used Google APIs, but I need for downloaded SRTM tiff image. (SRTM file is being loaded on a base layer, and both ...
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0answers
33 views

GeoServer WMS layer does not show with use of OpenLayers

Goodmorning, For a few days i m trying to get a WMS from geoserver to a website using openlayers. But everytime i get pink rectangles. I know that there are a lot of this thread already but i dont ...
1
vote
0answers
41 views

First click layer selector doesn't work in CartoDB?

I'm working on an interactive map using CartoDB built of Leaflet.js. I added a layer selector which works fine after the first click. The first click just doesn't work, if I click the selected layer ...
0
votes
1answer
226 views

transparent infowindow google maps apis

I can add a div into the infowindow content and set it's style giving it background color, but I failed to make it transparent. Is there a way to make the infowindow of google maps API transparent, ...
1
vote
1answer
418 views

Problem with Cesiumjs sand castle live editor

I have saved a html file from Cesium SandCastle live editor, but I am not able to run that file on a web browser afterwards, even after loading all the JavaScript files correctly. How to make it run ...
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0answers
28 views

Openlayers only keeps the first drawn feature

I would like to save all my drawings on a vector layer stored in a PostgreSQL database and shared by GeoServer for a web mapping application. I wonder why this piece of Openlayer/JS code (as found ...
1
vote
1answer
391 views

Why do I have to reload the page, to show the Map correctly?

I added a map, in the way I'm supposed to, but why do I have to reload/refresh the page, to get the map (almost) as I want to? This is, what I mean: Map before reloading the page: Map after ...
0
votes
1answer
261 views

How to submit data to modify feature using applyEdits of ArcGIS API for JavaScript?

I'm new to ArcGIS API. In a form, how can you submit data to modify a feature using applyEdits? No map is involved with this. I have a form that populates the editable data with javascript. When the ...
2
votes
1answer
187 views

Showing link for every city at different zoom levels using Leaflet?

I have a Leaflet map that I am using to render a map of the U.S. The map will have specific zoom levels. For example, when the map first loads it will show major U.S. cities. Then if you zoom in it ...
2
votes
0answers
54 views

Caching Google Map markers/coordinates

I have thousands of markers - I need to cache them and use show-hide tactics to only show like 100 markers at once but I have trouble with caching. Adding all single markers/points to an array and ...
1
vote
1answer
12k views

display latitude and longitude on googlemaps on click

iam trying to retrieve latitude and longitude values .when user clicks on the google map latitude and longitude values has to be displayed on the textboxes my code is <%@ Page Language="C#" ...
1
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0answers
32 views

Single button click to bind three javascript functions

I have created cascading dropdownlist for district taluk and villages when i click search button it must zoomed to all the three layers.but i assigned the filter value for village so that it will zoom ...
1
vote
1answer
74 views

Mapbox GL JS Geocoder marker

I'm still a js noob. I am currently developing a map using the Mapbox GL JS API with their geocoding plugin, however, I'm am not seeing any examples of adding a marker after the return. I did find ...
4
votes
1answer
291 views

Check/uncheck overlays in groupedlayercontrol.js

In a Leaflet-based app I have create several overlays, grouped with leaflet.groupedlayercontrol.js, as shown in this image: Everything works well, but I need to uncheck certain layers, allowing the ...
1
vote
1answer
51 views

Leaflet marker cluster not working on GeoJSON with MultiPoint geometry

I have a GeoJSON file of fly tipping incidents that I have managed to display on a basic Leaflet map. I am now trying to incorporate the marker cluster plugin, but I am having problems as it does not ...
2
votes
1answer
263 views

Using Odyssey.js with Cartodb.js

I'm looking to use Odyssey to create an interactive introduction to various data layers on an interactive web map I've created using CartoDB.js. I'd like to have different data layers turned on / off ...
1
vote
0answers
26 views

Plot a bubble chart in d3.js by giving an local geojson file as an input

This is the content in my geojson file { "type": "FeatureCollection", "features": [{ "type": "Feature", "properties": { "profit": 326, "npa": 174.000000 } }, { "type": ...
2
votes
0answers
43 views

Removing individual markers from map

I have a map with several moving markers on it and have been trying to remove each individual one when their respective animation ends. I am using Leaflet and Leaflet's plugin Leaflet.MovingMarker. I ...
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0answers
12 views

GEOEX2 tree add openlayers

HI I have a question if anyone can help me to add a layer of "new OpenLayers " to the tree ?? my code tree? I know how to use baselayer and overlaylayers but do not know how to add some different ...
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vote
1answer
438 views

Using sql SELECT DISTINCT in Fusion Tables API

How do I go about using sql SELECT DISTINCT in fusion tables API?
1
vote
1answer
1k views

OpenLayers create marker (feature with icon) from WKT

I have a point object WKT. Like this: POINT (25.04568 48.221548). Also I have an icon in my project folder. My goal is to show on a map an icon that represents a feature. Can it be just a normal ...
1
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2answers
53 views

Appending Data to FeatureLayer in ArcGIS API for JavaScript?

I am working on a web app where I am making calls to a database api and it returns a JSON Object. I've managed to do so successfully as well as any manipulations that need be done. Is there a way to ...