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

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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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1answer
18 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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2answers
3k views

Openlayers & WMS - GetFeatureInfo problem

I'm making a small project but I encounter some problems. Let me explain that : Having generated mapfile with mapserver and they are viewable by the openlayers interface, I would like to make me ...
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23 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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1answer
11 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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2answers
17 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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9 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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2answers
21 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
206 views

WMSGetFeatureInfo Not Returning Results

I am having a problem getting the results back from a WMSGetFeatureInfo call to my GeoServer. Using OpenLayers 2.12, GeoServer 2.4.0, Windows Server2008, and Microsoft IIS 7.5 with Application Request ...
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1answer
259 views

SQL Data: How to draw circles with a radius based on lat/long data in DB

I have a . sqlite file with many columns, two of those columns being lat and long. I've been searching around for a bit now (don't think I want to be using BuildCircleMbr from spatialite?) but I'm ...
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15 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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2answers
212 views

javascript function to search all OpenLayers vector features covering a pixel

I have an OpenLayers map that draws features in a vector layer. The features are selectable and have a popup on select. Unfortunately in a lot of cases the features overlap so it can be impossible to ...
2
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1answer
405 views

combine two OCG filters in Openlayers : ERROR: invalid input syntax for integer

i need to combine two OCG filters. each one works fine separably but if i combine them using Filter.Logical.OR, the first one works only. var c_filter = new OpenLayers.Filter.Logical({ type: ...
2
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1answer
16 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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1answer
244 views

Openlayers FramedCloud popup appears in the wrong location

I have an application that is using OpenLayers 2.13.1. It is utilizing a bing basemap and overlaying WMS layers. I am using a FramedCloud popup. I would like the popup to appear where the user clicked ...
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13 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
37 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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1answer
22 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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7 views

Displaying ESRI WMS layers 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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1answer
232 views

Overlay wms + google layer in Openlayers

I want to use OpenLayers, GeoServer layer with the google maps api as a base. In my GeoServer layer is redesigned to EPSG: 900913 when I open the geoserver openlayers with everything ok. On a map ...
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1answer
109 views

Is there any readily available implementation of Mapserver (or Geoserver)- Postgres-Openlayers combination?

I am developing an web GIS for map data presentation for public. Is there any readily available implementation of Mapserver (or Geoserver)- Postgres-Openlayers combination or similar? More Details: ...
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1answer
261 views

Openlayers 2.12 - add selectFeature to button results in “Geometry Undefined”

I have modified the Openlayers mobile Vienna WMS example, and am trying to change the labelButton to allow selecting of features to open a popup. I think it is necessary to do this as on a touch ...
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1answer
11 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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4 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
19 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 ...
5
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1answer
1k views

WFS-T: changes not saved on an OpenLayers map

I have written a script allowing to display a few WMS and WFS layers and I want to make my 2 WFS layers editable. I have all my controls and can draw / modify / drag / delete my features but, on one ...
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1answer
13 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). ...
2
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1answer
38 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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0answers
18 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 ...
2
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1answer
1k views

Layer visibility using maxscale minscale not working

I'm using Openlayer and Geoserver. I have a series of layers that have a scale parameter like: 1:50000-1:25000 where 50000 is the max scale while 25000 is the minscale. I have a map like in this ...
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1answer
461 views

register to event in openlayers 3

I have a web application in openlayers and I am starting to rewrite it to openlayers 3. In the application i have some features that i need to delete/move/add/edit the features then to save it to the ...
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2answers
42 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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2answers
46 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
27 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? ...
1
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1answer
397 views

Problem creating a popup in mobile openlayer

I'm trying to use the mobile version of openlayer, unfortunately I could not use framedcloud in it, I could only create a square popup does not look very aesthetic, besides the main need is to ...
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1answer
407 views

How to trigger a map click event?

I have a map with some markers. On clicking a marker, a popup would appear and on clicking the map, any visible popup would be hidden. I want to hide any currently visible popup upon clicking a marker ...
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1answer
123 views

Mapfile SYMBOLSCALEDENOM and SIZEUNITS (miles) 200: Keep SIZEUNITS while circles change size based on zoom

I've been trying to understand how to keep the SIZEUNITS at 200 while the circles appropriately adjust based on zoom level. Thought I had this working properly but turns out I did not. You can see ...
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1answer
337 views

Identify functionality using mapserver

I am just creating a simple web application using mapserver. It has the basic pan, zoom in/out functionality. Now what I want to try is to get an identify functional added into it so that when I click ...
1
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1answer
601 views

Stop OpenLayers featureselected event listener blocking map drag event

When trying to drag the map, if the user clicks on a vector feature the featureselected event is triggered and the map dragging does not happen. Please try to drag the map starting from any feature in ...
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0answers
15 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 ( ) ) " ) ; ...
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1answer
120 views

Geomedia WebMap WFS to vector marker layer in Openlayers

Looking for minimal example/advice on getting a WFS service to show up as a vector layer with markers/icons in Openlayers map. I have created the WFS service in Geomedia WebMap 6.01.11.19 and the ...
2
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1answer
43 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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0answers
33 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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2answers
351 views

How did OpenLayers 3 managed to export map from other domain?

As far as I know, you cannot use canvas.toDataURL() on a tainted canvas (i.e. cross-origin). Looking at this example it seems the tiles are coming from different origin (tile.openstreetmap.org). How ...
0
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1answer
14 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); ?
2
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1answer
30 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 ...
2
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0answers
24 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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0answers
20 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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0answers
11 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({ ...
2
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0answers
32 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.