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

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Minimum hardware requirements of server for host ArcGIS Server / QGIS / GeoServer? [closed]

I want to buy server on (Hetzner or other) for host the OpenLayers map on site. Well, I do not understand what the performance should be the server. I know that it depends on many factors (size, ...
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54 views

Add features to vector layer from WFS protocol read response

Im trying to add the features i get from a WFS query using the WFS protocol. But something doesnt work. I have looked at other post with people having similar problems, but their solution dont fit ...
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14 views

based map follow layer wms tiled

I am new to OpenLayers. I want to develop a system. I already get a layer from GeoServer using WMS services; this is the code: var hilirPerak = new OpenLayers.Layer.WMS("hilirPerak", ...
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1answer
51 views

How to Represent large data using google map api in javascript

1) I am trying to represent data using bins as the data was too large to display each and every point simultaneously. but the problem with this also existing if the no of bins are getting larger ...
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1answer
38 views

OpenLayers with MVC and SQL Server

I have imported some shape files into SQL Server 2008. Now i want to use OpenLayers with my MVC 4 application to render those shape files from SQL Server Database. Any help in this regard?
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19 views

popup.contentDiv OpenLayers Popup window

Could somebody help with popup.contentDiv()? I don't understand how can I define the HTML div class here. In general I would like to define some customs characteristics via HTML. The source ...
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1answer
66 views

Reading Features From A Google Fusion Tables Table - OpenLayers

Why doesn't this example work? http://dev.openlayers.org/releases/OpenLayers-2.12/examples/fusiontables.html I would like to do something similar but i can not find any other example how to display ...
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1answer
33 views

WMS BBOX in URL vs in params

I'm new to OpenLayers and Geoserver and I have a problem (of course :P). I must retrieve a layer from Geoserver's WMS service, and I want to construct the URL to request it. If i try to make this: ...
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22 views

How to displace overlapping features in OpenLayers?

I have two line layers representing a different bus routes. The bus routes sometimes run through the same street. In these cases, the line layers overlap and only the upmost layer in the stack is ...
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15 views

Server Side Thumbnails

I am using a combination of base maps from Google, Bing and OpenSteetMap, along with GeoServer and some geo-spatial data stored on a SQL server, as well as OpenLayers to display maps on a website. I ...
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1answer
49 views

how to limit zoom level in OpenLayers

I would like to have only 3 levels of zoom available (from level 6 to level 8). demolayer2 = new OpenLayers.Layer.WMS( "abc...","http://localhost:8080/geoserver/gwc/service/wms", {layers: 'def...', ...
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1answer
46 views

How to limit zoom level in OpenLayers [duplicate]

I would like there to be only 3 levels of zoom available in the WMS that is displayed in my OpenLayers.Map (from level 6 to level 8). demolayer2 = new OpenLayers.Layer.WMS( ...
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2answers
46 views

OpenLayers request a WFS feature

I am trying to request features of a wfs layer and then zoom to them. The wfs layer is defined as follows: wfsLayer = new OpenLayers.Layer.Vector("University", { strategies : [new ...
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20 views

OpenLayers: Show a styled title similar to pop-up but always visible?

I need to basically create boxes with titles inside, set to different styles (different coloured box, different FontAwesome icon etc.) set to specific points on the map, ideally replacing the label ...
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40 views

Animation and zooming in OpenLayers

I need your help. I'm learning to use OpenLayers (version 2.13.1) and I've made some custom buttons to test the controls. Now, I have a button which is bound to a simple setCenter() method that works ...
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41 views

Thematic mapping [closed]

What is the best way to develop thematic maps? I would like to generate pie charts and fill polygons with different colors depending on a parameter value. I'm working with ExtJS 4.2 and OpenLayers.
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39 views

Digitizing with OpenLayers Plugin seems incorrect

I am attempting to digitize some buildings based on floor plans using QGIS. To do this, I have taken the blueprints, georeferenced them against openlayers bing aerial plugin. I then digitized the ...
2
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2answers
53 views

How to insert coordinates to url

What would be the approach to show and dynamically update the map coordinates in the url like stamen is doing it? Are there any built in functions in OpenLayers, what other techniqes could I use or do ...
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41 views

How to load WMS Layers automatically when using heron MC

I'm using Heron MC with extJS, GeoExt, and OpenLayers 2.13. At first I try the default configuration of the Heron MC and every layers load automatically when I opened the webpage. However, when I ...
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1answer
69 views

Is it possible to access geoserver wfs layer from localhost:8080 in to web application? [closed]

I want to add a WFS layer. I am trying to get WFS layer from localhost:8080 geoserver. but I am getting eoserver DateLineWrap in Openlayers.js file...
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0answers
25 views

How would I get number of tiles loaded, and total number loading?

So new to OpenLayers 3, and I'm trying to create a "loading bar" to indicate how much of a layer has loaded. I'm thinking of making it based on the number of tiles loaded so far divided by the total ...
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1answer
26 views

Zooming to specific polygon boundary Openlayers

I want to zoom to specific polygon boundary of some polygon layer. How can I do this.The map layer is WMS layer.
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1answer
36 views

How to use POST method with Overpass QL and OpenLayers?

I am using OpenLayers and Overpass QL with GET method to retrieve data from the Overpass server. Some URLs tend to be very long and hence get rejected by the Overpass server. To get around this, I am ...
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17 views

Which are the differences between using javascript openlayer and gwt-openlayer API?

I am about creating a web app which should use openlayer API, but I would like to use GWT too. So I have the following questions: Is it the same to use GWT-openlayers API in terms of functionality ...
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20 views

Wrapdateline support in Openlayers for Bing baselayers

I have setup the Bing map as the base layer. I want to have a continuous horizontal panning, so I have added the wrapDateline option in Openlayer for OpenLayers.Layer.Bing map type. However, afer the ...
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27 views

Why does geoserver layer disappear when baselayer is false?

I am trying to overlay a layer from Geoserver on an OpenStreetMap base layer. If I load the Geoserver layer as a base layer, I can see it - but if I set baselayer to false it disappears. My code is: ...
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44 views

How to install Proj4js.js in my localhost directory?

I'm developing a GIS website for vineyard management. I am using Openlayers with the WMTS IGN (French institute for geography) datas. It works fine. I also would like to add the possibility for the ...
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1answer
50 views

Error:getFeatureFromEvent is not a function - Openlayers Multiple layer selection

OpenLayers.Control.SelectFeature works well when I try to select single layer from map. But it throws error as getFeatureFromEvent is not a function when I pass a collection of layers to it. ...
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27 views

problem labelling cluster features in openlayers

I'm trying to label a vector layer with clustered points in OpenLayers. When the feature is clustered I want to show the value of an attribute of all the features included in the cluster. I've tried ...
2
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1answer
52 views

OpenLayers: add WFS layer from GeoServer and OSM

in a OpenLayers HTML file, i'd like to request the default tasmania data of my GeoServer (runs on localhost) and add them as an WFS Layer. The second layer should be an OSM-layer. This is my code up ...
1
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1answer
122 views

Development guide for beginner? [duplicate]

Im new to GIS and mapping, and I need to learn how to create web map application for my project. I'm really confused on what to use. I have read PostGIS, OpenStreetMap, and Openlayer. I'm wondering ...
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1answer
78 views

Problem with snap layer when in name is space

I'm trying to make a option, where user can choose layer to snap. All is okey when layers names are without space, but if in name is space (like 'something layer name') snapping does not work. How can ...
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23 views

Opposite than normal behavior in zoom with restricted extent and vector base layer

My map has OSM base layer and i have restricted its extent. This worked normally. Recently i added a blank baselayer so that the only overlays could be shown. base = new OpenLayers.Layer("Blank", { ...
3
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36 views

How to update location via a data streame in openlayers or Leafletjs

I'm developing a application where I need to real-time update a Location of a Map using a data stream, I'm planing to use web-sockets, Are there any guides I can follow? Or can you guys direct me in ...
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34 views

Open Layer and Vector seems not working

I configured geoserver (2.4.4) with a layer in EPSG:4326 projection. In my client side I added the openLayer code to read and show this layer as in the following: map = new OpenLayers.Map ("map", ...
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1answer
70 views

How to create switch the layers option using geoserver?

I did create some maps with three layers using layer groups with the help of some tutorials but i dint get the switching options like others. How to get that + mark locates in the right top corner ...
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1answer
35 views

Uncaught TypeError during proj4 transformation

I get: Uncaught TypeError: Cannot read property 'x' of undefined at proj4js-combined.js:2720 While executing this code (transforming polygon from one system to another): Proj4js.defs['EPSG:3765'] = ...
3
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1answer
70 views

Is there a way to know if an error occurred while loading a WMS layer, in OpenLayers 2?

First of all, I already asked this question in stackoverflow. I don't want to spam by asking again here. But I think the question fits better in gis.stackexchange. I am sorry for the replication. Feel ...
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3answers
87 views

Transforming polygon using Proj4js

I am reading the Proj4js User Guide but cannot quite grasp it. I import the library <script src="lib/proj4js-combined.js"></script> Then, function init() { (...) // reading from ...
2
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1answer
58 views

how to open geotiff as base layer on openlayers

i want to add a geotiff image as base layer on openlayers : copy my image.tiff in a directory and open it with openlayers directly without using a cartography server.
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1answer
19 views

Unregistering OpenLayers events?

map.events.register('click', map, fucntion(e){alert('on')} ); map.events.unregister('click', map, fucntion(e){alert('off')} ); Looks easy enough but un-registering just won't trigger. I ...
1
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1answer
47 views

Increase max zoom level in OpenLayers

I'm developing a map in an Android WebView, using OpenLayers and a WMS Service. I can only zoom a certain amount of times (which I would like to increase). My code is: map = new ...
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12 views

what are the other main components of GeoServer based system? [duplicate]

I am trying to build a system for publishing transit flying charts online through a web site which uses geoserver behind it and I am wondering which other components should I consider, like ...
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33 views

How to change the type of a layer attribute

I want to publish some point on an open layers map I used Postgresql with the geometric column and geoserver using WFS to connect with openlayers but I can't add Postgre or any geographic server to ...
0
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2answers
79 views

Returning string from OpenLayers.Format.WKT write? [closed]

How to return a string from OpenLayers.Format.WKT write this.innerHTML = new OpenLayers.Format.WKT().write( layer.selectedFeatures[0] ); my full code is like this please suggest me... ...
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23 views

Openlayer 3 - Layer Drawing order

I have a map with various vector layers, and I would like to be able to decide which layer goes on top of which. I thought that inserting the layers in the map layer group using: ...
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2answers
38 views

How to track ajax WMS requests in OpenLayers interface?

I'd like to track WMS requests on my openlayers web interface. How is it possible to log on my server or in Google Analytics every WMS requests (GetMap and GetFeatureInfo would be enough)? Then I'd ...
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26 views

How to make layer group folder into a check box to turn off all layers inside?

I would like to create a geoext layer tree containing layer groups which can check or uncheck all the layers within them. Would anyone know if this has been done or can be done? I was thinking about ...
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50 views

OpenLayers displays nothing when I try to add WFS Layer from Geoserver - can't work out where the problem is occurring!

I hope someone can help me with this problem as I'm very confused! I recently downloaded the IHO Sea Areas shape file from http://www.marineregions.org/downloads.php One of my colleagues has ...
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24 views

Openlayers stylemap default style doesn't render until mouseover in IE 7/8

I'm using Drupal 7 Openlayers, and adding my own custom behavior. I have no trouble getting my code included, and it works well on other browsers. But in IE 7/8, the layer features render with a null ...