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

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ol v.2.13 - Selecting features with draw or zoombox

I'm attempting to add a feature to a legacy mapping project. I need the user to be able to draw a rectangle and have the features/markers inside of it selected and pushed into the selected array. Is ...
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118 views

How can I add google map layer as additional layer (OpenLayer, OSM)?

I am total newbie when it comes to Geoserver, JavaScript etc. I have managed to get my map working and the layers from my localhost are showing on the map. Base layer is OSM but I would like to add ...
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20 views

Adding layers to an OpenLayers map from a WPS process automatically after processing

I want to process two layers visible from a an OpenLayers client map interface such as Geonode and then add the result of the output directly to the map automatically after the processing is finished. ...
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50 views

WMS or WFS for selecting features and show attributes?

I am beginner in MapServer and Openlayers. I want to be able to select features and show their attributes by user click. I don't need to edit any feature. I know this is possible with WFS, but ...
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49 views

OpenLayers - Click on a panel triggers a map click but it should not

I added a panel to a map that is contained inside an IFrame. Then I attach a click handler to the div of this panel with JQuery to toggle a control. However, I notice that a click on the panel also ...
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49 views

Load single image by map API and draw overlays

I have an image which I want to make it zoomable and dragable in browser, and draw some overlays like lines and markers on it. So I wonder if I can use the map api like Google map or openlayers to ...
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55 views

How to add a WFS layer to an OSM base layer from GeoServer

I'm sorry if I'm repeating what has been asked several times! I'm a novice in open layers and java script , please can some one tell me where i am making a mistake , below is the code which i used ...
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35 views

Retrieve list of all features and values from raster layer (Geoserver and Openlayers)

I'm trying to retrieve a list of all values from a raster layer (GeoTIFF) in geoserver (2.5.x). I tried to modify the code from http://trac.osgeo.org/openlayers/wiki/GetFeatureInfo but I can't seem ...
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41 views

Adding Drawn Feature to existing Layer

-A layer that contains multiple features - I want to draw new features with new OpenLayers.Control.DrawFeature and to add them to my layer. var control = new ...
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2answers
36 views

Return Image from WMS service

I asked this question, and I realize that I am going in the wrong direction. So, I would like to do this : var geom = new THREE.Geometry(); // push vertices here var some_material = new ...
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1answer
49 views

Comparing two maps with two different libraries

I'm currently making a demonstration to compare the two OpenLayers libraries (2 and 3). For doing this, I have made two div elements and put the different maps on each other. The goal is to make a map ...
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1answer
35 views

Openlayers: Parsing GeoJSON-properties results in a “data”-property in feature

I'm using OpenLayers 2.12. I try to load a GeoJSON-response from server and (nearly) everything works fine: but the properties contained in the GeoJSON-response ("nummer" and "befund" below) were ...
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23 views

Inserting newly drawn polygon as feature in existing layer

I draw a polygon that I want to save in the existing WFS layer as soon as it gets created. var control = new OpenLayers.Control.DrawFeature(existing_layer,OpenLayers.Handler.RegularPolygon); ...
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2answers
107 views

OpenLayers 3 or 2

I am beginner in OpenLayers and am starting with the www.openlayers.org documents, which use OpenLayers 3 to teach the basics of OpenLayers. Now, I would like to add layers from Google Maps and ...
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2answers
53 views

why use openlayers with mapserver?

i am beginner in mapserver and openlayers. i start with mapserver and now studying openlayers and see openlayers can render vectors directly. my questions is : why use mapserver inside openlayers ...
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102 views

Displaying ESRI REST Services in OpenLayers 3

I'm looking for an example that demonstrates how ESRI WMS can be displayed with OpenLayers 3. In OpenLayers 2, we had a OpenLayers.Layer.ArcGIS93Rest class (see example and docs). layer = new ...
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13 views

OpenLayers gx_geocodercombo returns syntax error

I try to implement a gx_geocoder combobox... { xtype: "gx_geocodercombo", hideTrigger: true, emptyText: 'Enter address (streetname housenumber municipality)', width: 350, layer: ...
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1answer
42 views

OpenLayers 2: WFS layer not being portrayed in map canvas

I have a "rich" application (OL 2.13 + GeoExt 1) where some layers must be styled dynamically according to user input. I am able to add a vector layer using WFS and then apply a style rule. Recently, ...
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1answer
76 views

Save Polygons as new Features in geoserver

I enabled the functionality to draw Polygons, as in the example. http://dev.openlayers.org/examples/draw-feature.html Now I want that, once I created a polygon, this polygon is saved as a feature ...
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30 views

Add Marker on the polygons' centre using Openlayers?

I have written a code to draw polygon from the WKT format.Now I need to add the marker at its centre. In the following code I have passed the centre and shape in WKT format(extracted from database). ...
3
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1answer
31 views

Label Style is converting decimal String names to Number

The feature.attributes.fid returns a String value like "9.3210". But on the map, this value is being converted to some number type and on map is showing the value 9.321 (without the 0). var ...
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1answer
47 views

How can I render the postgis layer to the openlayers map viewer?

I have a postgres table which is storing the dynamic GPS point data. The geom column has been created. Is it possible to render the last 10 mins GPS data to the OpenLayers map? Is there an example? ...
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21 views

getCenterLonLat differs from init values

bounds = new OpenLayers.Bounds(); bounds.extend(new OpenLayers.LonLat(36,57)); console.log(bounds.getCenterLonLat()); I expect something like Object { lon=36, lat=57, ... } I get some Object ...
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68 views

What is wrong with my WFS-T protocol setup?

So I want to transfer some Vector Layer Features from javascript code to my geoserver and then to postGIS, my code looks like this: saveStrategy = new OpenLayers.Strategy.Save(); ...
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1answer
18 views

log the coordinates of mouse poisition

Is there a simple way that I can access the coordinates (according to my used projection) and make them visible, like console.log(currentX+" "+currentY); ?
4
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1answer
288 views

Openlayers 3 Max Extent

I want to restrict where the user can pan on the map, but I can't seem to find any resources that tell how to set the max extent of a map view in OpenLayers 3. I know there was a solution in ...
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36 views

geoserver and openlayers select rectangle pixel values

I'm running a geoserver (2.5.x) with 1 raster file (GeoTIFF) as a layer. From my application I can access a single pixel value when clicked (through WMS), but what I'm really interested in is to get a ...
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84 views

Add WMS from geoserver to openlayers with OSM baselayer

I am new to javascript/the openlayer. Maybe you can provide me with some help. I would like to add a wms layer (BLD_504) from dwasa (workspace) locally. The code is as follows: <title> ...
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2answers
134 views

Openlayers 3 detect the layer by mouse move

I wanna do something like this ; Openlayers 3 Vector Layer Example But I don't want to one layer, 3 or more layer on the map and get feature like the example. How can I seperate the layer ...
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118 views

How to get feature on vector layer in Openlayers 3?

I'm try to get feature of a vector layer, but I'll have 3 or more Vector layer. When I click the map, I didn't get the feature. My vector layer definition; var vectorAltAlan = new ol.layer.Vector({ ...
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36 views

OpenLayers preview problem?

I just want display shapefile (.shp) that I have made in QGIS in openlayer geoserver. but There is a strange object that appears. I want to ask how to get rid of the strange object.
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2answers
64 views

Viewing large set of polygons in PostGIS using OpenLayers?

I am prety new to GIS. I have set up a postgis database with al large dataset and a openlayers front-end to display it. But since the dataset is getting prety big I am looking for a way to only load ...
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1answer
85 views

OpenLayers Full Screen control not working

I have a problem with openlayers controls. I have 2 controls which are perfectly working, var mousePositionControl = new ol.control.MousePosition({ coordinateFormat: ...
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32 views

How to emulate OpenLayers button click in C#

I'm trying to call a click of a user using C # with the following code ( " C # : GeckoWebBrowser.Navigate ( javascript : void ( Document.getElementById ( ' idOfElement ' ) .click ( ) ) " ) ; ...
2
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1answer
73 views

OpenLayers 3 measure example

Here is my fiddle, which is exact copy of Openlayers 3 measure example. What am I doing wrong when my fiddle isn't working? I can't see the blue dot to start measuring my path or area (same problem ...
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1answer
84 views

How to transfer a WKT string from OpenLayers to Geoserver or PostGIS?

Supposing I have created a Vector Layer in OpenLayers and then transformed it to WKT or GeoJson, how can I export it from OpenLayers, and possible import it to PostGIS or GeoServer?
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27 views

wrong layout when using Openlayer plugin

I'm drawing a simple map and I noticed a weird problem. Very briefly: I have a simple shapefile (a region) and the Google Satellite layer of the OpenLayer plugin activated on my map canvas. On the ...
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1answer
100 views

How to transfer layer data from OpenLayers to PostGIS database or QGIS?

Supposing I have a created some layers in OpenLayers containing only Geometry Points, how do I transfer my data to a postGIS database? Is there a way to turn pure javascript/openlayers to a table in ...
2
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1answer
78 views

Openlayers creating RegularPolygon that is too small then return false

sorry my English very pool and just can type few word... My project has to use imagelayer to show map , it can create box on map, box will be a area to put device marker on top , but when the box ...
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88 views

How to plot heatmap/locations in Geoserver & Openlayers map from the Lat/Lon data of PostGIS table?

I am using Geoserver, Openlayers, PostGIS for Geospatial web implemenation. I have an Indian map shape files for States, Districts, Talukas. I am able to generate a map with states, districts, ...
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12 views

Error Using Open Layers 3 Web mapping Applications [duplicate]

As being new to website development, i have been able to display map on my website, but I want that i should only zoom to some specific places of india on loading of web pages. Can somebody please ...
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1answer
362 views

Why use a database when you can have all of your data in javascript/openlayers?

I have a really simple and basic question. First of all, I have to mention that I am pretty new to web applications and GIS. I am working on a web application using Openlayers, Postgresql/postGIS and ...
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29 views

Saving Changed Features from OpenLayers does not work because GeoServer claims Layer to be read-only

Trying to save a few changed Features in OpenLayers back to my geoserver (2.4.4) with saveStrategy.save(). Features don’t change. What I get in the geoserver protocol is: ...
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1answer
33 views

openlayers 2 can't close popup

I have a map with points from GeoJSON file. I created a default style and a select style for these points. I created a popup with attributes from GeoJSON when clicking on a point. All works fine, ...
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1answer
156 views

Setting Base Layer in OpenLayers 3

I know there is a setBaseLayer function in OpenLayers 2. Is there a way I can accomplish that in OpenLayers 3?
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18 views

Pause OpenLayers interaction until pan complete

I have an OpenLayers map with thousands of vectors and a tiled strategy for retrieving them. I rarely get above 15fps panning the map, which is undesirable. I notice a similar Google Maps application ...
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1answer
48 views

How to set an x-offset for my whole linestring/layer?

Supposing I have a layer imported from GeoServer succesfully, and it looks like this: (some will remember me from my previous question. And, yes, that is my city Volos, Greece. There is a map and a ...
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1answer
112 views

google map as base layer with overlays(vector & rasters)

Currently i'm using OpenLayers 2.12 and geoserver 2.2.4. On initial load the application has the base layer(say baseLayer_1) of 4326 projection with overlay layers of One WMS layer(say worldWms) and ...
2
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1answer
53 views

Non-default icon of OpenLayers Vector Feature

thats propably some minor problem, but i have deadline above my head and i can't get any clue whats wrong with my code, so I decided to come here for help. Im changing from markers to vector layer and ...
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68 views

Get info from WMS layer with Openlayers mobile jquery? [closed]

How to get feature info from WMS layer (geoserver)? I am using openlayer jQuery mobile. I've already called the WMS in jQuery mobile, but how to get feature information when clicking the attribute.