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

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1answer
76 views

Add Legend to Leaflet Map

I have a leaflet map that consists of various wms layers representing different years. I am trying to add a legend to my leaflet map but with my own custom hex colours instead of trying to use a ...
1
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0answers
16 views

Function access to surrounding object's variable

var CreateFeature = OpenLayers.Class(OpenLayers.Control, { clazz : "xyz", set_item : function(e) { var position = map.getLonLatFromPixel(e.xy); var latitude = position.lat;...
1
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1answer
30 views

White tiles with Google Chrome and OpenLayers 3 [closed]

I created personal tiles on my webserver, which works with Apache. These tiles are in folders from 0 to 16 in Jpg format. I render these local tiles with OL3.15.1. On Firefox, IE Edge and IE10 I've no ...
1
vote
1answer
235 views

way in R or Python to add image/video in map plot marker click popup/infowindow

I have many different (lat,long data) points of world associated with unique place names and corresponding each point specific image or video data. Now I want to create an html file where if user ...
1
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1answer
24 views

Catch WMS empty answers with OpenLayers 3

I was wondering if there is a way with OpenLayers 3 to catch problems with WMS layers, such as the service not answering, or not sending any images/tiles. So that in case of errors with a distant WMS ...
1
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0answers
36 views

hide and show a feature from group feature with checkbox in leaflet

To begin I will explain the code, I have a checkbox generated after loading the web page by the next code var CPID = new L.GeoJSON(false, { onEachFeature: function (feature, my_Layer) {...
1
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2answers
3k views

OpenLayers-3 setting zoom so layers fit in map window

Is there a way to dynamically set the zoom level so that the current layers always fit within the width of the map frame on page load? Currently the zoom level is set statically such that when using ...
2
votes
1answer
63 views

Using JQueryUI Slider to change Layer Display (Leaflet)?

Can't seem to figure out how to use JQueryUI Slider to change the layer display on my leaflet map. Scenario is basically, When user slides bar across a dfferent layer shows up on the map (in years) ...
0
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1answer
224 views

Selecting features by attribute in Leaflet

Is there a way to select an individual feature based on an attribute from a FeatureGroup in Leaflet? For example, when selecting a feature based on a click event, I will do something like, function ...
1
vote
0answers
129 views

How to write features in json file after drawing point on map in openlayers3

Can i save the features on selecting points into same json file? `function addInteraction() { draw = new ol.interaction.Draw({ source: floodAlertLayer.getSource(), type: ...
5
votes
2answers
328 views

tabbed popup window for Arcgis Javascript

Anyone know examples of a tabbed popup window for Arcgis for javascript, NOT an infowindow? If you could point me in the the right direction it would help.
0
votes
0answers
34 views

Loading huge amount of data in OpenLayers 3

I have been working on a PoC to load a huge amount of data ~ 350k-500k but I haven't been successful so far. I tried loading JSON then converting them to ol3 features (failed at 130k) then I used ...
0
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1answer
17 views

Simply trying to add another layer to openlayers3 script

Hi guys so im simply trying to add new layers with each as their own variable so i can turn them on and off, instead of just stacking all the layers under the variable 'layers'. See script below <...
3
votes
1answer
33 views

How do I remove the terrain checkbox from Google Maps?

I don't mind having the map/satellite options, but I don't need the terrain option for my map. How do I disable just that? I don't see it documented well on https://developers.google.com/maps/...
-5
votes
2answers
91 views

How to remove attribution in Leaflet

I want to remove the leaflet.com that appears on the right bottom of the screen here
2
votes
1answer
223 views

Legend label failed to send to the print service using ArcGIS javascript

I am try to print my map with legend to PDF format; however, the legend label in the PDF is saying Override 1 instead of the label I specified in class breaks. There are other maps I can print ...
1
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0answers
15 views

Can we combine SVG Overlay with MarkerCluster v3?

I have searched here and there on how to prevent the overlapping circle (svg) layer created from json file. Poor me, no luck till now. Since I doesn't know how to prevent the overlapping circle I ...
0
votes
1answer
70 views

OL3 how to get WKT representation of a Polygon

I have a vector layer in ol3 that i want to export to a shape file, I take the geometry of the polygon. In an attempt to fix an issue with my WKT (see this question) I add the first coordinate to end ...
0
votes
1answer
270 views

How to call a leaflet Javascript Function in dropdown menu bar?

i have the following problem: my target is a hybrid app with leaflet. I create a dropdown menu with html/CSS/JQuery. Here is the code: <nav> <ul> <li id="menuPoint1"><image ...
2
votes
1answer
65 views

Adding WMS layer with CQL filter

I would like to add to my leaflet's web map layer from my WMS service (Geoserver), but I need to use CQL filter in GetMap link: localhost/geoserver/my_location/wms?(...)&CQL_FILTER=[...] Is ...
1
vote
0answers
18 views

After Feature Layer reference is added all dojo references are not recognized

I'm creating a simple javascript management system in which I have to query 6 feature layer services, edit, add or delete data from the services. Every time I want to add the Feature Layer reference ...
1
vote
1answer
252 views

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

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 ...
1
vote
0answers
42 views

Why reprojection GeoJSON with new.ol.View - not working?

I try to reproject GeoJSon file in OpenLayers 3 from : Geojson link With these JS in head : <script src="js/jquery-2.2.3.min.js" type="text/javascript"></script> <link rel="...
9
votes
2answers
356 views

Instructor led Web mapping development courses? [closed]

I have been messing around with programing for a while now and have gotten proficient with Python and have some interest in HTML 5 and Javascript. I have recently received a request for an IRD (...
0
votes
0answers
48 views

Loading WFS from Geoserver to Leaflet

I use GeoServer 2.7.0 and Leaflet-0.7.7 and the jquery: <script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.js"></script>` for showing a WFS in my Geoserver. How do ...
2
votes
1answer
35 views

where i can add style in this code leaflet

var urlborne = 'http://localhost:8080/geoserver/Gestion-proprete/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=Gestion-proprete:borne&maxFeatures=2000&outputFormat=text/...
0
votes
1answer
63 views

Read WKT geometry using JTS 1.13 in java

I want to create a shape file from coordinates, in the client side I take the coordinates of a polygon by opelayers, it send to a java class, in this class read the geometry of the polygon, when the ...
8
votes
3answers
2k views

Moveable ArcGIS Identify Popup Window (Dojo)

I'm trying to get a popup window that identifies a location to be moveable. My code is similar to the API example: var popupOptions = { fillSymbol: new esri.symbol.SimpleFillSymbol(esri.symbol....
1
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2answers
861 views

Display photo in GeoExt popup

I have point feature with name PointPhoto. This feature have attribute: id area PhotoPath Now I am using GeoExt popup to display this attributes, but I cant find a way to display image from ...
0
votes
1answer
74 views

How to call the geojson dynamically according to area selection in openlayer 3

I'm trying to get geojson according to the selection of a particular area. For example, if I have selected a built up area it will only show that area . I'm calling geojson data through php page, and ...
0
votes
0answers
15 views

JavaScript API ArcGIS Combine Legend with On_Demand feature class query

I am having trouble adding a legend to my JavaScript code I have a basemap, scale bar, and a click on demand query info box for my feature class which displays the attribute fields but when I add the ...
0
votes
1answer
54 views

openlayer 3 popup on marker mouseover

I'm only able to get popup on click. Can we get popup on marker mouseover Here's the example link Like in this example popup start display onclick on marker..But i wanted popup will automatically ...
0
votes
1answer
72 views

Add and later access Leaflet.draw polyline index and a new property value

I am using the Leaflet draw plugin located at https://github.com/Leaflet/Leaflet.draw and what I want to do is when a person draws a new polyline to print in the console the index number of that ...
3
votes
0answers
92 views

How to get the best GPS position Geolocation API

I want to get the most accurate position of my mobile phone with android. I'm comparing accuracy value in 2 seconds interval and if value is less than last value I'm trying to keep the position in <...
1
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0answers
27 views

Open layers 3, map.on('moveend',..): Differentiate between user interaction and map.setCenter() calling

I am implementing OL for a GIS application and want to add a 20 seconds timeout when the user scrolled the map, after which the GPS auto track function should resume. For that I am utilizing the map....
1
vote
0answers
28 views

Change maxZoom option in runtime to ol.View in Openlayers 3

Im trying to change the maxZoom option once a functionality of the map is activated. So it has to be during runtime so it can be rolled back to the original maxZoom. Creating the ol.View you ...
1
vote
0answers
21 views

How can I ask for location and display it on map on my website? [closed]

I have added a map to my website. Now I want to add a feature to it wherein when a user clicks on the add event button on the header a popup should appear which ask for event name and location and as ...
2
votes
1answer
39 views

Add Links to Leaflet Choropleth Map

I'm making a choropleth map based on this example I would like to add links to the map, so that when a user clicks on a state they will be taken to a specific page. For example, a user clicks on ...
0
votes
0answers
13 views

Symbols not Rendering if more than 100 records

I have a link in the infowindow that displays all sale records in a particular area. The link work fine if there are less than 100 records. If there are more than 100 records then nothing happens (...
1
vote
0answers
26 views

Labels overlaps and more spaces between letters in cesium

I have a geojson loaded in cesium and also i had added labels for the layer with below code positions = entity.polygon.hierarchy['_value'].positions; //console.log(positions); center ...
3
votes
1answer
49 views

Geotools 12.3 creating shape file from coordinates

I want to export a vector layer to a shape file (create a zip file with .dbf, .fix. prj and .shp), but when the exported .shp file is opened in a Desktop GIS it doesn't show anything. For the ...
1
vote
1answer
74 views

Viewing a point geojson layer as markers in cesium

I have a point geojson layer and i would like to add and view it using cesium. I tried with the below code var dataSource1 = new Cesium.GeoJsonDataSource(); var roads = dataSource1.load('Apps/...
1
vote
1answer
531 views

Using sql SELECT DISTINCT in Fusion Tables API

How do I go about using sql SELECT DISTINCT in fusion tables API?
0
votes
0answers
36 views

Cannot draw two layers at once using Leaflet

I have two map layers that I want to show at once: One is the full data, the other is a filtered version of the data. The map will draw with each of these layers, but not with both at the same time. ...
1
vote
1answer
52 views

Checking if point is inside irregular polygon?

I'm using Javascript (https://github.com/substack/point-in-polygon) to test if a point is inside polygon, however I think it's adapted from https://www.ecse.rpi.edu/~wrf/Research/Short_Notes/pnpoly....
2
votes
1answer
108 views

Leaflet map draggable marker events

Everytime I click on the map I create a draggable marker with a drag function. It works great, however everytime I release the mouse after I dragged some marker, the click event of the map is ...
0
votes
0answers
51 views

Adding intelligent search box to cesium for implementing search within layer from server side?

There is a default search box in cesium to search by address or by landmark. Now i want to add a intelligent search box to search within the layer. I would like to know how to add such search box and ...
0
votes
0answers
13 views

Using IDW method and its output raster in a web app

I am creating an web app and needs to interpolates between some points- Weather data- (with IDW method) and show the results as a raster (like the output from ArcGIS) so a user can click on raster and ...
1
vote
1answer
161 views

Using AndNav tiles storage as input for OpenLayers.TMS

Is there a possibility to use map tiles from AndNav (created wit Mobile Atlas Creator) that are in format: Mapnik\12\2241\1369.png.andnav (I know that 12 is the zoom level but don't have idea what is ...
4
votes
1answer
88 views

Better (faster) way to join a csv to a geojson in Leaflet?

My goal: Store the attributes of a geojson in a csv file Allow a non-GIS user to edit a cloud-hosted csv file which then updates a webmap Have the web map be a static app with no GIS/PostGIS/SQL etc ...