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

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3
votes
0answers
96 views

How to PGRoute from OpenLayers via PostGIS/PostgreSQL [duplicate]

I need to route a shortest distance for a map which I have loaded from a PostgreSQL by means of JSON file. I can project the map in my browser and I can identify the linestrings. For a particular ...
3
votes
2answers
273 views

how to search for a Point of MultiLineString geometry in a json file using OpenLayers

I have a json file with large geometries(MultiLineString), here I got a Point among the json layer(baseLayer). I would like to search for a Point's LineString in the layer, from which MultiLineString ...
2
votes
1answer
87 views

Change text color of PopupMobile

I am facing the problem that with some mobile Browsers like DolphinHD and Android Browser that the browser makes the text color white, and the background is also white. So i want to change the ...
1
vote
2answers
60 views

accesing openlayers.map in index.html

I am developing an app using OpenTripPlanner. It creates an OpenLayer map in map.js. I want to access this map in index.html so I can set it's center. Kindly help me out.
9
votes
3answers
2k views

Chart inside pop up window in Javascript

How to show a chart inside pop up window? I'm using Leaflet JS, which has support for raphael plugin http://dynmeth.github.com/RaphaelLayer/. Is it possible to create a div inside popup window? I was ...
3
votes
1answer
332 views

Javascript and esri.dijit.PopupMobile

I currently have a wonderful mobile version of our site up in which it uses PopupMobile to display the requested info. I also map a button on the map that allows the user to do a random function. ...
6
votes
2answers
504 views

Rendering huge amount of points

Evening Guys, I am new to ArcGIS, and currently developing a small app that uses ArcGIS Javascript API. I have encountered a couple of problems while working on this and would greatly appreciate if ...
1
vote
2answers
2k views

Add layer in Openlayers using layer variable passed to a function with setVisibility

I am trying to add and remove layers by passing the name of the layer variable to two separate functions and I can't seem to find any place that describes what I am trying to do. Here is an abridged ...
0
votes
1answer
299 views

GeoExt2 - Popup Bug?

I'm using GeoExt2 (alpha) + Extjs 4.1 now to implement a map application. The thing is sometimes when I select a feature on the map, two popups are displayed. one at the bottom of the screen which has ...
3
votes
1answer
1k views

Problems with gxp Print plugin via opengeosuite sdk

I am trying to import the print plugin within an application built using the Opengeo Suite sdk and I have run into issues as is described in the following thread ...
5
votes
2answers
544 views

How to display a lot of images with OpenLayers?

I would like to display a lot of images at same time. The images are georeferenced (they have extents), with some labels on top of it which, on click, open popup. I can not say how many exactly ...
1
vote
1answer
653 views

Is it possible to show migration arrows on Leaflet map?

I need to develop Leaflet map which will show the whole world. Also, I need to draw some arrows which will show paths of migrations in the world. The important thing to say that those arrows need to ...
2
votes
1answer
154 views

Openlayers layer hide javascript menu

I have java-script menu that is getting behind openlayers OSM layer (only after it loads). I've tried giving z-index:9999 to the menu div but it didn't work. Any idea ?
2
votes
1answer
99 views

Whats steps can I suggest to achieve the best Geolocation Result

We are using Geolocation (getCurrentPosition()) in a website to determine a users position when using our site from a mobile device. I want to write an article explaining how the user can obtain the ...
1
vote
2answers
6k views

OpenLayers vector layer remove all features

I have a map (using OpenLayers) and a vector layer containing features(points). Sometimes I need to remove all features from the vector layer. When I use vectorLayer.removeAllFeatures() then it ...
2
votes
1answer
104 views

Is there a Deployment build of GeoExt 1.1?

The latest version of GeoExt that is available for download at http://geoext.org/downloads.html (version 1.1) appears to be a development version. They are individual files with whitespace and ...
2
votes
2answers
3k views

How to label GeoJSON polygons?

I'm using Leaflet combined with GeoJSON features. Is there a way to label GeoJSON features (in this case - polygons)? It should get labels from feature.properties.name This is my code where I ...
-1
votes
2answers
268 views

Go to the URL on click with GeoJSON

I'm using Leaflet API and geojson. I defined a function which zooms to the feature when clicked: function zoomToFeature(e) { map.fitBounds(e.target.getBounds()); } function ...
2
votes
1answer
374 views

How to write addressToLocations onError?

How can I write a code for checking the error condition in Javascript (ArcGIS) for addressToLocations(params, callback?, errback?). if somebody entered an invalid address- how can I call error ...
4
votes
2answers
2k views

Click link inside Leaflet Popup and do javascript

I have a leaflet map up and running. It overlays a series of polygons (via GeoJSON) on the map and attaches popups to each polygon. Each of the popups display information about that polygon. I'd ...
1
vote
0answers
422 views

translating and scaling viewport to fit geojson map in D3js

I am trying to load a map of Rio de Janeiro (Brazil) in GeoJson for with D3js the code and the map is here: https://gist.github.com/4157853 I can open the map normally with Qgis, but with d3js ...
0
votes
1answer
771 views

In leaflet does the addControl automatically handle events via the leaflet API?

I need to add additional overlay layers to be controlled by the controls within the leaflet map boundaries, but the code utilizes a leaflet-custom.js file. I am assuming it handles the event and ...
0
votes
0answers
109 views

How do I determine programmatically what values to add to the proj4js constructor for a CRS or SRS such that I can iteratively render proper overlays

I think this is primarily a GIS based question as far as for example: var crs = L.CRS.proj4js('EPSG:2154', '+proj=lcc +lat_1=49 +lat_2=44 +lat_0=46.5 +lon_0=3 +x_0=700000 ...
4
votes
1answer
735 views

ArcGIS Javascript API - Return 'normal' map extents when panning around the world

ArcGIS Javascript API maps allow the user to pan around the world, which is a great feature, however I am performing some processes that rely on map extents. I have discovered that despite the ...
2
votes
0answers
335 views

How to use javascript in fusion tables to query

I'm having a quite bit of difficulty creating some functions for my fusion tables. I have two tables here: Points Parcels I'm trying to create a number of functions: 1) I want to be able to select ...
3
votes
1answer
1k views

How do I project my WMS tilelayer in leaflet if I want it to display as an overlay on my basemap if they have different EPSG?

So my basemap is a world Mercator projection and in wfs format and I'm trying to put a WMS overlay in a different projection over it? Leaflet's API didn't give me much info on changing the epsg so is ...
1
vote
1answer
963 views

Show Fields in infowindow from my custom layer

I want to display 2 fields from the POIData layer. What i get now is ${ToegangsNr} ${Baanvak} in text. Does anyone know how to do this in an DynamicMapServiceLayer. Thanks in advance POIData = new ...
2
votes
1answer
488 views

Openlayers text layer is not working

I am trying to load markers from a text file using openlayers text layer, but no marker is shown, text file and icons are in same directory. However I am able to show markers using marker layer. My ...
10
votes
2answers
13k views

Adding/Removing Leaflet GeoJSON layers

I'm trying to show different GeoJSON layers at different zoom layers using the Leaflet API. I can load and display all three layers at once (though I don't actually want them all to show at once). I ...
1
vote
0answers
239 views

Layer set visible

I add this layer like this: var POIData = new esri.layers.ArcGISDynamicMapServiceLayer("https://mysite.com/ArcGIS/rest/services/POI_Data/MapServer"); map.addLayer(POIData); ...
1
vote
0answers
125 views

adding WMS service to application ArcGIS JS api

I've got map in projection: 4326 (WGS-84) when I try to add WMS layers which is in different projection I always get connection timeout Do you know if I could change WMS projection to set it up ...
1
vote
1answer
104 views

Is a new map object required in order to create a wms overlay on top of a current map object with wfs layers using the leaflet api

I am trying to add a wms tile layer overlay over a wfs tile layer which I added to a map object. When I tried to simply add a layer on top of my current setView for my map object it overwrote the ...
1
vote
1answer
821 views

Does leaflet support wms tile layers in applications/openlayers formats?

I am trying to create a tilelayer.wms overlay on top of a wfs base map and I wasn't sure whether leaflet allows the applications/openlayers type of format which I served up from geoserver or only ...
0
votes
1answer
63 views

What kind of different results or what is the difference between two URL based WMS requests [closed]

I am trying to retrieve some WMS layers from geoserver so that I can display them in leaflet and I need to populate a URL field and I noticed that many of the layers that I opened up in openlayers had ...
3
votes
0answers
267 views

How do I format tilelayer.wms url properties such that I add an overlay iteratively to my base map in leaflet

My base map was created using hard-coded template variables. I am using the leaflet tilelayer.wms constructor and including the url like so: url: ...
2
votes
2answers
203 views

Can PHP be used to set the XY, zoom of a Mapbox.js map?

All, Is there a way to set the xy and zoom level of a map using the URL of the site that is calling it? I'm thinking of a site I'm using now, built on php, which has mapbox maps built in javascript ...
0
votes
1answer
252 views

Looking for free sdk/lib/framework for UI for openlayers app

I'm looking for free UI lib/sdk/framework to make openlayers app that I can have the map in one panel , the layer control in other panel and maybe hovering tool bar (instead of putting buttons on the ...
5
votes
1answer
1k views

Is it possible to create filters based on attributes for markers in Leaflet?

I need to create filters based on attributes of markers. I have markers defined this way: var locations = [ ['AB11 5HW','17','A',57.147701,-2.085442 ] , ['AB11 8DG','3','B',57.129372,-2.090916 ] ...
11
votes
2answers
4k views

OpenLayers 2.12 and http basic authentication woes

I am trying to use OpenLayers 2.12 to display WMS layers from a server which has HTTP Basic Authentication enabled. I have tried to handle the authentication by putting the username and password in ...
7
votes
3answers
5k views

Accessing GPS data with JavaScript in real time

Is it possible to access GPS data in real time on a smartphone with JavaScript (without an android or ios application I mean)? Thanks
2
votes
2answers
470 views

Insert Javascript code in Popup.FramedCloud?

I would like to have a live stream from a web camera in a Popup.FramedCloud. All I need to do is to insert this code in the HTML code parameter for popup: <script ...
3
votes
1answer
220 views

is there an API-level error handler in the ArcGIS Server JS API?

I'm seeing an error message in FireBug: Error: Internal kml parser error.http://serverapi.arcgisonline.com/js.../?v=3.2compact Line 34 I'm not worried about fixing this error for the moment - I'd ...
3
votes
1answer
3k views

How can GeoJson polygons be colored programmatically using OpenLayers?

I'm experimenting with dynamically setting the color values of a geojson polygon. In my geojson file, there is an attribute for each polygon called pop_den. I am trying to update the fillcolor of the ...
2
votes
0answers
67 views

Features disapearing

When I add a polygon feature it shows on the map. When I add another one the first one disappears. The code for adding is below: $.postJSON('@Url.Action("GetLayers")', { "planId": planId }, ...
2
votes
1answer
703 views

Displaying ArcGIS Server dates without javascript localized date offset?

Esri recommends that databases are in UTC time. And if I’ve got this right, unless you set a time zone in your layer, you are entering a date in a date field as UTC. Mostly this is fine.You understand ...
3
votes
2answers
705 views

How to speed up the process of vector data visualization for a web application

I have a GIS web application and vector data that is going from the model to the web application. For developing the User Interface I am using JavaScript and OpenLayers. But sometimes the amount of ...
2
votes
2answers
595 views

Insert a loading message into DataGrid

I'd like to show a loading message (Loading...) that shows while the datagrid is being populated. It would show when the search button is clicked and disappear when the grid results have populated. ...
3
votes
0answers
879 views

leaflet - Drawing line following the road

Short version: What I wish to be able to do is drawing a polyline along part of a road. In that way marking certain houses, along this road. Long Version: I have several houses that I wish to mark ...
2
votes
1answer
2k views

Determine why OpenLayers.Bounds containsLonLat() returns false

In this code, I'm loading a bunch of random points that are roughly in the contiguous USA. I've created a OpenLayers.Bounds object roughly corresponding to that extent. When I select a point, I want ...
2
votes
2answers
992 views

Load One Layer from ArcGIS Server MapServer

I am pretty new to ArcGIS Server and am building a map applications using the Javascript API. I can easily load the map layer below by adding it as a ArcGISDynamicMapServiceLayer ...