OpenLayers is a JavaScript library for creating dynamic map widgets for web sites.

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3
votes
2answers
465 views

Design question: what's the role of WFS-T in this kind of webapp?

I have more experience in "traditional" (Java EE) webapp development, and I am trying to figure out a decent design for a mapping web application. My application has a map, and users can see and edit ...
6
votes
4answers
3k views

Best solution for printing Google Maps?

What is the best solution so far for printing Google Maps as a base layer of Vector layers in Geoserver/OpenLayers application ? I used to print WMS layers using GeoExt print page example, but when ...
0
votes
1answer
133 views

Control visibility of multiple layers

I am displaying multiple feature types using one layer in OpenLayers, like here: var **vector** = new OpenLayers.Layer.Vector("My Layer", { maxExtent: new OpenLayers.Bounds(-1.09863,44.42907, ...
3
votes
2answers
324 views

Can OpenLayers request different language tiles from map providers (eg Bing or Google)?

If I am in the US and my browser locale is en-US, I'll get English language maps by default from Bing. Same thing if I access Bing tiles with OpenLayers. If I change my country/region to (for ...
1
vote
1answer
211 views

Issue openlayers and tilestream

Basically I created a MBtiles using Tilemill and it generates a map with six zooms. I implement it into tilestream. I added a layer on the openlayers module(Drupal) in XYZ: ...
3
votes
0answers
2k views

Map printing using OpenLayers

Following OpenLayers map printing demo here, I'm able to get my map in image format. But I'm facing two issues with the export: Google Street base map is not included in the image output; Whenever I ...
35
votes
4answers
16k views

Should I use OpenLayers or Leaflet?

I was debating with one of my collegues on OpenLayers v/s Leaflet. I made a point that OpenLayers is much better API if we wish to build a project, where you need direct connectivity to the Geoserver ...
2
votes
2answers
2k views

Fixing the OpenLayers MBTiles Example

I've been trying to implement the OpenLayers Example for reading MBTiles: http://projects.bryanmcbride.com/ol_mbtiles/ Right off, the link to the necessary mbtiles.php script was broken, but I found ...
3
votes
1answer
780 views

Limit Zoom on WMTS Layer using Openlayers 2.12

I'm implementing a baselayer to be used by a Plone addon (collective.geo.openlayers). My implementation specifically creates a layer and returns it to the addon, which enables many different layers to ...
3
votes
2answers
798 views

OpenLayers 2.12 + KML from String + Change markers'icons

Reading this post How to add KML data but from variable - not from url? I changed the way of reading KML files (from HTTP to a string loaded using jQuery) /** * The OpenLayers object * @type ...
1
vote
0answers
371 views

Tie up LineString to the feature when dragging it in OpenLayers

I have an application in OpenLayers which shows a number of devices (Feature) on a map. The devices are linked between each other by cables (MultiLineString). ...
2
votes
1answer
541 views

How to export vector features to grid using proxy and WFS protocol?

I am trying to export vector features (current view) as a grid, something like: http://workshops.opengeo.org/geoext/wfs/grid.html so far layer features are not being retrieved.. I got empty grid in ...
0
votes
3answers
767 views

Trying to fetch feature data by intersecting Vector Polygon and WMS feature layer

I am trying to intersect a user defined polygon with a Point WMS Feature Layer. I am using the following code action = new GeoExt.Action({ text: "draw poly", control: new ...
1
vote
1answer
352 views

Adding CSV upload browse button to Ext.Action

I am trying to create a CSV File upload on GeoExt Map App. I need to place the upload function within the Ext.Action, so that I can add it to the toolbar of the GeoExt Panel. I am trying to implement ...
3
votes
1answer
646 views

OpenLayers 2.12 + click handler + get the name of the vector

Basically, I add several vector layers (KML content got from jQuery GET) in this way: var layer1Vector= new OpenLayers.Layer.Vector('activeInfo'); layer1Vector.addFeatures(featuresLayer1Vector); ...
1
vote
1answer
252 views

How to parse xsd:schema file using openlayers?

I got layer column names using this thread. But I am stuck parsing it. How to parse this xml using openlayers? <xsd:schema elementFormDefault="qualified" ...
1
vote
1answer
720 views

How to disable overlay check box after a certain zoom level?

How do I disable a particular overlay checkbox in the Openlayers Layerswitcher?
1
vote
2answers
389 views

How to print a vector layer over Google map? “Physical Printing”

I use Geoserver, Openlayers, Extjs and GeoExt to build an app. I am trying to get vector layer on Google map printed with pop up a Print dialog, I tried : var targetElement = Ext.getCmp('mapPanel'); ...
3
votes
2answers
591 views

How to get column names of layer (WMS) using OpenLayers?

Is it somehow possible to get layer's column name using OpenLayers? any example and documentation would be really useful? Edit: I have already tried WMS_describeLayer topp:states layer: <?xml ...
4
votes
3answers
629 views

Search by street name/postcode in OpenLayers

Can anyone help me search by street name in OpenLayers? I essentially want to be able to search fir streets/postcodes in openlayers in the same way I can search on google maps. Is this possible. ...
2
votes
1answer
89 views

Error executing CQL on layer other then demo layers

I have some sort of wierd problem as I was playing with CQL. CQL works well with given layer but when i try with layer loaded from mapinfo or some views then it does not work. As in the picture when I ...
1
vote
0answers
109 views

Geoserver FTL style in IE not rendering

I am using the WMS GEt Feature Info feature in Geoserver. I created an inner ftl (content.ftl), using the header and footer ftl as it is. The WMS Get Feature Info will go into a basic Openlayers ...
1
vote
1answer
2k views

How to get feature info from wms layer

I have used your code for picking feature info from wms layer using WMSGetFeatureInofo function.I have used you this link. ...
4
votes
1answer
277 views

How to create a vector feature drop target?

I would like to create, inside an openLayers map, a drop target for my features. The user should be able to drag a vector feature, drop on the target so that some further action can be triggered (in ...
0
votes
1answer
878 views

lonlat from geometry point gives strange result

I added a vector layer to my main map with the controls like the example from openlayers: http://openlayers.org/dev/examples/draw-feature.html Now when I want to get the resulting lonlat from the ...
3
votes
2answers
2k views

Dynamically adding features with cluster strategy

I am trying to dynamically add features to a vector layer, and use cluster strategy to group those features accordingly. I am able to do this for the first set of data that gets loaded on the map. ...
2
votes
1answer
2k views

How to get Openlayers cluster strategy work for large data?

The map Layer has around 1500 points. I am able to display all the points in the map without any problem but adding the cluster strategy to the layer does not work. The Cluster strategy functions when ...
2
votes
2answers
744 views

Openlayers - how can I parse a KML file

I have found some info on here regarding opening a KML file (with groundoverlay) from a url in Openlayers. In order to open a KML with groundoverlay, it must first be parsed. However, after I GET, I ...
4
votes
1answer
1k views

GeoWebCache and OpenLayers horizontal resolution error

I have a mapping application (the Arne G. Brekke Bygdebok Collection) which uses OpenLayers to load map tiles from a GeoWebCache server operated by the Statens Kartverk (Norwegian Mapping Authority). ...
1
vote
1answer
270 views

Parse a KML for Openalyers

I am trying to get a kml from a URL to display in OpenLayers. However, it is a ground overlay so it cannot be displayed the standard way. I found this thread: Does OpenLayers supports KML Ground ...
2
votes
2answers
696 views

Exporting OpenLayers.Layer.WMS to GeoJSON / KML

I'm looking the way to exporting an especific region of a WMS layer to some XML format (GeoJSON, GML, KML) using OpenLayers and Geoserver. I've found how to export features objects with ...
3
votes
0answers
431 views

Get tile URL with projection different than 900913

I have the following code, which should display a slippy map showing tiles producted by me with mapnik: Proj4js.defs["EPSG:31258"] = "+proj=tmerc +lat_0=0 +lon_0=13.33333333333333 +k=1 +x_0=450000 ...
1
vote
1answer
296 views

GeoServer Exception: No such operation WMS 1.1.0 GetFeature

I'm using GeoExt, OpenLayers and GeoServer. I've added a checkbox to my layer tree which, when clicked, activates a "select feature" control such that when a user clicks on the map, the feature ...
1
vote
0answers
242 views

Are there any examples of creating custom openlayers geometry types?

I am working on a project that uses openlayers where IE8 compatability is a requirement. Unfortunately, there seems to be some performance issues with OpenLayers in IE8 when parsing a large number of ...
3
votes
1answer
4k views

OpenLayers - is it possible for a feature to have both a single click and double click event?

I'm have an OpenLayer map with a single vector layer containing many features. I've been using SelectFeature to pop up some info when a feature is clicked, and that's working fine. However, I now want ...
5
votes
3answers
8k views

Change Icon of Single Vector Feature in Layer

Currently I am trying to change the icon of a particular feature of a vector layer that the user is focusing on. I add each feature to the map like so: var point = new ...
1
vote
1answer
571 views

OSM Map projection doesn't seem to change

I have the following OpenLayers map: Proj4js.defs["EPSG:31258"] = "+proj=tmerc +lat_0=0 +lon_0=13.33333333333333 +k=1 +x_0=450000 +y_0=-5000000 +ellps=bessel ...
0
votes
1answer
399 views

Vector layer shifted on OSM map: why?

I've defined the following map: Proj4js.defs["EPSG:31258"] = "+proj=tmerc +lat_0=0 +lon_0=13.33333333333333 +k=1 +x_0=450000 +y_0=-5000000 +ellps=bessel ...
3
votes
1answer
110 views

Is it possible to create Non Earth map in openlayers?

I'm working on a little hobby project for a game, it has some information about locations that are non earth coordinates with extents of 99999999999999999 to -99999999999999999 might even be larger. ...
0
votes
2answers
702 views

Unable to reflect JSON in grid

I am trying to fetch the data from JSON and display it onto the grid. The store has all the JSON data, but I it is not visible in the Grid. The grid comes out completely blank. This is the ...
2
votes
1answer
530 views

Problems using 2 maps with multiple layers and loadend event

I have 2 or more maps with one ore n layers on each map. Now I want zoom to extent for each map, but the getDataExtent returns only for the last layer in the last map a bounds. Can you help me? Here ...
1
vote
2answers
765 views

How to overlay points from MySQL served by Geoserver on an Openlayers map?

This might be a very basic question as I am new to GeoServer. What I am trying to do: I have a MySQL table that stores data attached to a spatial point and have latitude and longitude columns to ...
5
votes
1answer
2k views

How to check map tiles are loaded in OpenLayers?

How to check if the map tiles are loaded? I need to know whether all map tiles are loaded on to the OpenLayers map as html contents.... Is there any method to find out or function in openlayers to ...
3
votes
2answers
7k views

How to redraw / refresh map on canvas resize?

I've created a web page that contains a button to set the map full screen and back to its normal form, the problem map doesn't set to full screen until I resize the output window, how to overcome ...
2
votes
3answers
953 views

OpenLayers.Format.GeoJSON throws an exception “SyntaxError: JSON.parse: unexpected character” for valid JSON

In my GeoExt client, I have the following line that retrieves JSON data from a web service into a FeatureStore: var store = new GeoExt.data.FeatureStore({ layer: route_layer, fields: ...
1
vote
1answer
447 views

Geoserver and SRS

I have a very basic problem, and please bear with me since I'm new to GIS. I have geoserver installed in a Ubuntu Box and installed a few maps in shapefile. The maps were originally in ArcGIS format ...
1
vote
0answers
191 views

OpenLayers Icon e PopUp

Ciao, sto creando una pagina in php con una mappa ... in OpenLayers Examples ho trovato due interessanti esempi: esempio che mostra come usare diversi tipi di poupup ...
0
votes
1answer
227 views

PopUps for all the Feature layers

I am trying to create GeoExt action button to fetch the feature info from all the layers. I am still getting the info for my point features but I am getting nothing for the usa:states, that appears in ...
2
votes
2answers
2k views

How to read OpenLayers event object features?

This is part of an interface that uses a box to select features on a WMS Layer. This then writes the name of the features to a div as a list. var recycling = new OpenLayers.Layer.WMS( "Recycling ...
1
vote
0answers
259 views

ScaleLine shows NaN for LCC projection

I have used openlayers along with geoserver. My Map is having LCC projection by default, but SRS is EPSG:4042. The problem is that the scaleline shows NaN in meter as well as feet. How can I correct ...