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

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OpenLayers : How to make a marker fixed [duplicate]

Possible Duplicate: How to skip drag event to stop a feature being dragged I've created a map and added markers to baselayer on click by using this code : vectorLayer = new ...
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794 views

Is there a map-level event to signal the start/end of drawing?

In OpenLayers, is there an event which fires when the map starts drawing any layer, and another for when the map has finished drawing all layers? I wish to display a "waiting" animation while any ...
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Show vehicle traveled route as animation [duplicate]

Possible Duplicate: Animate feature in openlayers I create map web app with openlayers and yii php framework. I want to show vehicle traveled route as animation like below site in my ...
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Creating a Geodesic Polyline Buffer in OpenLayers

I have a feeling that the answer is going to be 'You can't do that without some very complex coding' but I thought I'd go for it anyway. I recently asked a question on how to create a Polyline Buffer ...
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LineString in OpenLayers: Is it possible to draw segments in different colors?

I'm a newbie in OpenLayers. Can you help me with this: Is it possible to assign color not to the whole linestring, but to different segments?
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929 views

OpenLayers : Map not loading

If i use a single wmslayer as map baselayer it loads the map, but adding different layers like (google,yahoo) to map it won't works. Can anyone tell me how to overcome this.. thanks in advance.. ...
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OpenLayers: Click event to display position shows Uncaught TypeError: Cannot call method 'getLonLatFromPixel'

I have created a map using openlayrs, and put a click event to display its position in screen, when i clicked got an error message like Uncaught TypeError: Cannot call method 'getLonLatFromPixel' of ...
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OpenLayers.Bounds transform not working as expected

I have problem with transforming bounds. It is not working for the first time, later it works just fine. At first i thought that something was still loading butsearching in firebug shows that nothing ...
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Slow IE8 responsiveness with OpenLayers and many features

Background Adding about 700 sites to an OpenLayers Map. Firefox 11 and Google Chrome display the sites just fine. IE8, which is the organization's standard and will not be upgraded for the ...
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Creating a Polyline Buffer in OpenLayers

I was wondering if there was a way to create a buffer around a polyline feature in OpenLayers. I have created a tool that allows the user to draw a circle buffer zone of whatever size and style they ...
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907 views

how to change marker angle in openlayers?

I want show one marker with normal angle 90 degrees(it is default of openlayers) and other marker with 120 degrees in openlayers. To differentiate with the normal ones. how can i do this.
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OpenLayers change feature's style

Working with OpenLayers 2.11, I'm desperately trying to change my feature style as the user selects it (fairly simple I agree!). Indeed, It seems easy but I can't see where It fails, perhaps someone ...
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Animate feature in openlayers

In my map web app, I have a play pause button that show vehicle route history.I get lat lon from database and create route that vehicle traverse. At below site go to history tab after and choose ...
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Label in the middle of linestring in OpenLayers

Is there anyone can put label in the middle of the linestring dynamically? I've used labelAlign option. I've changed this value from bc, cc, cm, etc. But it doesn't work at all. There's also option ...
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379 views

How to draw features with openlayers?

i have a DrawFeature tool. create= new OpenLayers.Control.DrawFeature(myVecLayer, OpenLayers.Handler.Polygon); app.mapPanel.map.addControl(create); i have a store. st = ...
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OpenLayers WMS disappears when including OpenStreetMap

Setup: ArcSDE 9.3.2 Oracle 11g GeoServer 2.1.4 OpenLayers (latest build) OpenStreetMap InternetExplorer 7.0/ Google Chrome EDIT: I have updated information just below the screen shots ...
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473 views

Popup is stationary does not move with the location

I am using the GeoExt example and used the same code in my application. This is my code The problem I am facing is that the Popup box in my application on http://128.196.142.94/geo/test/test.html is ...
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452 views

Loading features incrementally in a vector layer

I am new to OpenLayers. In one experiment I am doing I want to load, incrementally, features in a vector layer. In my setting, these features should be loaded from distinct OSM files (generated ...
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129 views

removing multiple additions to popup

I am using the GeoExt example and this is the js code and trying to get rid of the multiple lat and lon that get added into the PopUp on multiple clicks. Not sure which is the code that I need to ...
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272 views

How to get feature geometry?

I want to have a gridPanel with feature geometry. But i cant image how to do this. I have a FeatureStore st = new GeoExt.data.FeatureStore({ ...
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OpenLayers Vector KML draw black when change the style

I am trying to change the style of an OpenLayers.Vector using radio buttons and redraw it, but the result is a black vector. I tried own build OpenLayers11 and 12, beside api openlayers hosted. ...
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141 views

How to determine layers affected by a user-drawn polygon

Scenario: I have a set of layers, each covering one country. In my OpenLayers client, I enable users to randomly draw a polygon. A user is then able to perform analysis based on the drawn polygon. ...
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3k views

OpenLayers not refresh a layer

i have a problem with refreshing layers. I have WMS and WFS layers from one source. I edit WFS and after do wms_layer.redraw(true) but layer redraw only after zoom in or zoom out. Same with WFS. i ...
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'undefined' is not a constructor (evaluating 'new > OpenLayers.Layer.GML'

My OpenLayers map was working fine before, showing a KML overlay. Suddenly it broke. Now I see this error in my browser error console. TypeError: 'undefined' is not a constructor (evaluating 'new ...
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OpenLayers ArcGIS93Rest layer not showing up

So this seems like it should be super obvious, but I can't for the life of me figure out why I can't get any ESRI layers to show up on my map. I've tried different layers and messing around with the ...
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Does OpenLayers mergenewparams repeatedly hit a WMS server when you change the layer name?

Does mergenewparams repeatedly hit a WMS server if you change the layer name? For example, you call the server with layer 'a' then you use mergewnewparams and call layer 'b', then you use ...
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OpenLayers WFS flip coordinates

I have a problem integrating WMS and WFS. Basically what i want is when user clicks on WMS then a clicked polygon is added to vector (and selected). The problem is that the WMS is in version 1.3.0 and ...
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How to zoom to object on WMS layer with OpenLayers?

I have a map with WMS layer. And want to zoom to selected object. Now i use GetCapabilities from Geoserver and zoom to bbox of whole layer. So how to do what i want? Or can u tell me how to get ...
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313 views

Inner shadow of a OpenLayers map container?

Not sure if this question should be here in the GIS section or if I should move over to a more common html/css place, but here we go: I'd like to have an inner shadow of my OpenLayers map canvas so ...
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OpenLayers ModifyFeature and styling

In OpenLayers, I have a Vector layer with a StyleMap and SelectFeature and ModifyFeature controls, like this: vector_layer = new OpenLayers.Layer.Vector('My Vector Layer', {extractAttributes: true, ...
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1k views

Add labels above the lines in OpenLayers

How to add labels above the lines? Labels are added as follows: var styleMarkersLabels = new OpenLayers.Style( // стили для надписей узлов { strokeWidth: 2, ...
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247 views

WPSExecute Format Issue

I have: function createWPSExecuteRequest(namespace, layerName, popFilter) { var request = OpenLayers.Format.XML.prototype.write(new OpenLayers.Format.WPSExecute().writeNode('wps:Execute', { ...
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561 views

Can't display overlay

I am trying to add a WMS radar overlay to my map but it won't seem to gather it. noaaRdr = new OpenLayers.Layer.WMS("Latest Radar", "http://nowcoast.noaa.gov/wms/com.esri.wms.Esrimap/obs?", { ...
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How to display a control (zoom bar) outside map container in openlayers?

Since I'm new to OpenLayers this question might be the simplest of them all but after a quick search on the subject I couldn't find anything useful, so: Is it possible to put a OpenLayers zoom ...
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how to create gis like Uster?

I downloaded qgis, geoserver, openlayers, ext, geoext, qgis-web-client and osgeo. And i have map shape files. i would like create website like this site. i need help. can you send tutorial links thank ...
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369 views

I want to convert openlayers interface code to dojox code for pie chart use.So can we use same controls of openlayers map in dojox.If yes, how?

Is their any way to add same openlayers map control to dojox map like navigation,panel,panzoom
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How to fire a query from OpenLayers to GeoServer to fetch 'the_geom' column in PostGIS table?

I am coloring the polygon shapes of world_country. I have OpenLayers in my UI, GeoServer as server and PostGIS as db. All I want is fire this query: select the_geom from world_country where ...
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312 views

Problems with labels halo in OpenLayers

Draw label as follows: var styleMarkersLabels = new OpenLayers.Style( { strokeWidth: 2, labelYOffset: 14, label: ...
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OpenLayers ModifyFeature for multiple layers

Is it possible to configure the ModifyFeature control to edit features in multiple layers?
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How to edit feature attributes with openlayers?

I want to edit object's attributes on WFS layer. I see this example http://gis.ibbeck.de/ginfo/apps/OLExamples/OL26/examples/styles_unique_with_group_wfs.html but popup is horrible. I want to use ...
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280 views

Anyone have success with OpenLayers and ArcGISCache?

OPENLAYERS Has anyone had success using OpenLayers and the ArcGISCache layer beyond the examples? I'd like to mix tiles with different resolutions and although they seem to scale correctly they do ...
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653 views

Is it possible to have a customized zoom level?

I am setting up my own Map Tile Server according to this guide and it is working well now: http://switch2osm.org/serving-tiles/building-a-tile-server-from-packages/ The map currently has 19 zoom ...
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How to get names of all layers in a store in GeoServer using OpenLayers

I have strict requirement to retrieve names of all layers in a GeoServer store using OpenLayers. I've gone through the post here, but it doesn't answer my question. I've also gone through GeoServer's ...
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2k views

Modify WFS with OpenLayers

I want to edit object on WFS layer but have one problem. I use OpenLayers.Control.ModifyFeature(myVecLayer) to editing.By the logic i do this. Press button and create WFS layer with chosen object ...
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2answers
937 views

Map resize displays google layer at incorrect zoom level

This is a screenshot of the icons in the wrong position due to the google layer showing the wrong zoom level. This is how it should look, and how it does look after the user pans the map. How does ...
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849 views

Getting OpenLayers Vector features vs clusters

I am using OpenLayers Vector with a cluster strategy. When I use Vector.features to get the features returned as a list, it returns an array of clusters and not the array of features. This makes the ...
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854 views

GetFeature Request with Polygon Intersecting Polygons

My task is very straightforward: a user draws a polygon and query all parcel polygons. The query string extends the URL limit. So I am posting XML to WFS. However, GeoServer always returned 0 feature, ...
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207 views

How to make popups on polygon using openlayers?

I want to make popups that contain information of a polygon when in hover using OpenLayers. information displayed in popups obtained from the database. Can you give reference code to make it. ...
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Calculate dynamic radius based on population and map resolution

Background Create a radius around the centre of a city that corresponds to the city's population, taking into consideration the map's current resolution. The populations range from 39 to 1090936, ...