OpenLayers is a JavaScript library for creating dynamic map widgets for web sites.
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26 views
How to bring workspace layer to one combo box and once layer selected in this attribute of this layer in other combo box
I want a layers in workspace in combo box.Once i select combo box i want attribute in selected layer to in other combo box. how can i do it. I am using geoserver, openlayers, Geoext and ext js.
Can ...
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60 views
How to add legend in WFS openlayers
How i can publish WFS openlayer with legend, have tried different examples such as http://api.geoext.org/1.0/examples/vector-legend.js. But when i used tried this fire-bug shows an error=> ...
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26 views
OpenLayers getFeature loading indicator
I need to set up loadMask for OpenLayers.Control.GetFeature. I know i should hide the mask on featureselected event or on protocol callback but when should i show the mask?
Here is code (assume i ...
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30 views
Editing a vector layer with openlayers
i am trying to develop a webmapping application using openlayers, geoserver, JSF javascript. I published my postgis layers on geoserver and added them to a google basemap on a xhtml page using a ...
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38 views
OpenLayers IE performance issues
I have an Openlayers map set up, it is all working well except in IE7 (which most of our users have) where performance is slow.
I load in several layers of vector features and then switch these layers ...
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76 views
User defined Polygon disappears with featureadded and selectfeature
I am trying to achieve the following functionality:
1. User draws a polygon.
2. Once complete, fetch features in that polygon( Using WFS).
3. On Select polygon, show the features that intersect that ...
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34 views
Grouping of layer with geoserver and openlayer
I need help to display layers group/non group
1. with checkbox to select layer or group
2. icon/symbol for each layer.
I saw example codes from OpenLayers where it's adding the layers statically. ...
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31 views
Shows Netherlands region on map on every zoom level not other region in Open Street Maps
I want to show/display only Netherland region on Openstreet map, dont want to show other region on maps. Same thing apply for zoom in or zoom out also.
I have tried with applying bounds but does not ...
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23 views
openlayers Arcgis WFS mousehover
i have a problem using ArcGIS wfs layer in openlayers. I would like to add the layer to the map as vector layer and then using a mousehover to highlight the features. However i cannot bring it to ...
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87 views
Multipolygon WFS Layer do not show
I am new in GIS and I am exploring OpenGeo for a weeks.
->What I am trying to do?
Show in a map (using Goolgle Layer), 1 Layer representing administrative areas of my country (witch is Portugal). ...
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51 views
How can I parse the SLD file that sits in Geoserver so that I can apply the styling to WFS layer?
I have a layer that can be configured to render as WFS or WMS. I want to apply the same sld styling that I have defined in Geoserver to make it consistent. But when I try to get the SLD text from ...
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40 views
proportion of image layer in OL
I tried create map with single image used OL.
But I have a trouble: image in map has a wrong proportions.
Img: 1540 x 1481
Img in map: 2858 x1481
My js code:
$(function (){
var map = new ...
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47 views
scale dependent rendering of base layers(gmap,ghyb) causes warping/flickering
Hey guys I am using geoserver to host my WMS layers and I am using gmaps base layers in Openlayers. Below I have attempted to use scale dependent rendering of the base layer without any luck.
What I ...
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63 views
WMS bounded overlay with OpenLayers and GeoServer
I'm trying to design a heatmap overlay bounded within four given coordinates with OpenLayers using WMS protocol to communicate with my GeoServer instance, where my data and SLD heatmap description ...
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164 views
OpenLayers - Setting the Min Zoom Level of a Google Layer based on a Bounding Box
I have an OpenLayers project that is using Google Maps for the base layer. Maybe I'm going about this the wrong way, but I think what I'm trying to do is pretty simple. I just need to set the minimum ...
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149 views
OpenLayers and GeoJSON - possible to create, modify and delete features?
I wondered if anyone has some OpenLayers GeoJSON code to read, create, modify and delete features (i.e. instead of using WFS-T)?
This is how far I've come - I've no problem changing the pop-up to a ...
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124 views
Are there any examples of WCS getcoverage requests done using ajax?
I am looking through openlayers to try to figure out a consistent format for generating views of coverages that can satisfy any wcs server, but mainly I'd like to get geoserver coverages.
While I've ...
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57 views
OpenLayers Show message (Information message or Alert )(or HTML content)on the map
Bonjour,
J'utilise OpenLayers et j'aiemrais afficher une fenetre affichant des messages sur la carte openLayers
Voici un exemple de ce que je voudrais faire : ...
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131 views
working with multiple wfs-t layers
I am using multiple wfs layers and using editing tools in that like edit,draw,save etc.
The code is shown here......
var district = new OpenLayers.Layer.Vector("district(wfs)", {
...
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12 views
How to access the timestamp value from Overpass meta requests with Openlayers.Format.OSM?
I am using Overpass-api to request data, then display it in an interactive webpage using Openlayers. When user clicks on some feature, the information is shown in popup.
As of now, the page is ...
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58 views
OpenLayers GetFeature Control Mobile
I have a map that is using OpenLayers and GeoServer. I have a base layer and a WMS layer with many features. I was using OpenLayers.Control.Click to get the coordinates from the map and show a popup ...
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93 views
Get info from WMS layer with Openlayers mobile
I am trying to build a webapp for iPad using OpenLayers Mobile. One of the features it should have is that you can tap on a tree displayed on a basemap and get info about this tree. These trees are ...
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167 views
Help me with this code from GeoExt and OpenLayers
I haven't gone entirely through GeoExt. But I am trying to understand the below code, but I am struck. The below code is about creating popups of feature information. But the layers added are WMS ...
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45 views
Making tracking data available to Geoserver
I have tracking data from GPS, which gives latitude, longitude, heading, etc.
Right now it's stored in a non-standard database (Accumulo) and I'm looking into how best to make the data available for ...
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128 views
OpenLayers & MySQL
I have a MySQL database full of data about students (name, age, school, university, city, etc).
What I want to do is to transform the data I got to markers on the map. To be more specific, I will for ...
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53 views
django + apache mod_tile
I'm not sure if I'm doing this right and I need your opinion on this current situation. I'm creating a Web Interface using django and postgres as the database. With regards to the slippy map, I went ...
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62 views
Programmatically change geometry column in OpenLayers WFS layer
is there a way to programmatically change the geometry column on which a WFS layer is based and displayed?
WFS (from GeoServer) is correctly returning me two geometry columns, I want to change "on ...
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25 views
When I used geowebcache, my map overviewmap can not use it?
I know: gwc / service / wms geowebcache use data, overviewmap is use wms original data, I tried modifying openlayers.js,some difficulties. You encountered the same problem and can help me look at it, ...
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78 views
Keep Getting Black OSM Tiles in Openlayers
When trying to view OSM tiles using the external storage example of OpenLayers,
I keep getting black tiles when I zoom in and out.
I don't know what the issue is but every time I zoom in/out there ...
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119 views
How to custom the LayerSwitcher in OpenLayers to toggle all layers?
I want to have a checkbox in my layer switcher "turn all layers on/off".
how can I do that ?
I thought about adding an empty layer with that name and somehow bind her an event "On Show" and "On Hide" ...
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57 views
What solution is there to project google/bing layers to another EPSG (e.g. 3844)?
I am using Geoserver and Openlayers. The Openlayers map has all the layers in EPSG:3844.
I need to overlay Google/Bing layers.
I am currently trying to do it with proj4js, mapproxy.org as openlayers ...
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126 views
OpenLayers: How to get backgroundGraphic to go under externalGraphic
I've got a layer with nodes features on which I may want to display two images, a main one and a background one. This page : http://openlayers.org/dev/examples/marker-shadow.html shows what I want: ...
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148 views
Displaying WFS Features Based on Zoom Level
I have a WFS feature layer with ~25,000 features and have been experiencing significant performance issues with my OpenLayers map. My first approach to solving this has been to pre-compute feature ...
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67 views
Why does the map take so long to display and appear distorted?
I have map rendered from geoserver but it takes too much time, again shown map is half-shown and distorted as the following image, SOMETIMES THE MAP DOES NOT EVEN DISPLAY
My JAI setting is as below
...
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109 views
How can I merge postcode sector polygons into larger territories in QGIS?
I'm new to GIS so patience might be required :-)
I'm building a basic web-based mapping tool for business use, to be used as a demo to show that we need one but managers don't know it yet!
So far ...
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169 views
Allowing Add/Delete/Update of features (web application): OpenLayers + WFS and GeoServer?
I've developed a WPF application that has a custom SQL Server database and uses the Esri ArcGIS WPF API to allow users to view, edit and query shapes (features) on a custom map. Maps are created from ...
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157 views
How to visualize MBTiles with OpenLayers using a PHP tile server?
This is repost as didn't get my expected answer. Please help me as I am newbie.
I have setup the PHP Tile Server 0.1 and when I am calling the PHP server it showing the following
Now I am triyng to ...
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115 views
What is the best way to create polygons on a map and download files associated with the polygon?
My client wants to build a tourist site and for that he wants a backoffice for the map and the ability to draw polygons on the map (that user can see). When the user clicks on a polygon, he gets a ...
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0answers
45 views
How to extract numbers from each vectors?
I'm trying to create custom legend for a layer where OpenLayers.Rule objects are created dynamically and added to a layer.
new OpenLayers.Rule({
symbolizer: {
...
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28 views
Is it possible to have transition between switching base layers
I use OpenLayers to display several maps. While transitioning between Google Map layers, the new layer is superimposed onto the old one. But for OpenStreetMaps, there is this empty void in between ...
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195 views
How can I show MapInfo tabs in OpenLayers without using MapXtreme Tile Handler?
I want to connect OpenLayers to mapinfo tabs I have , but I don't have MapXtreme license . Is there a way to show the tabs using different Tile Cache ? I can export the workspace to WOR or MWS files.
...
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351 views
Add wfs layer to openlayers map
(UPDATE QUESTION)
Hi guys. I have a problem with WFS request, mine is follow:
var wfs = new OpenLayers.Layer.Vector("WFS",{
strategies: [new OpenLayers.Strategy.Fixed()],
...
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165 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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0answers
159 views
Problem HTTP request for KML
i have a problem with HTTP request for KML to add to map. This is my HTTP request:
var x = new OpenLayers.Layer.Vector("X", {
projection: new OpenLayers.Projection("EPSG:4326"),
strategies: ...
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113 views
What are the differences between Anchored, Framed and FramedCloud?
From the API document for OpenLayers, I can tell that a FramedCloud has more functionalities than Framed, which in turn has more functionalities than Anchored. I am hoping for someone to describe ...
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66 views
OpenLayers doesn't understand Mercator map measured in degrees?
I have access to a map server that takes a bounding box measured in degrees, and returns a map, projected in Web Mercator. I'm having trouble configuring OpenLayers to use a Mercator projection that ...
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265 views
OpenLayers dynamic zoom levels
In my application i add layers dynamically. The first added layer is a baseLayer. When i add layer i extend bounds so the new layer could fit map (it works). The problems is that i don't know how to ...
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124 views
ArcGIS Reference Layer over ArcGIS Terrain base(or Imagery) Layer using OpenLayers
I am using Openlayers for a Map application which uses basemaps by ESRI (or ArcGIS). What I am trying to achieve is something like this:
http://www.arcgis.com/home/webmap/viewer.html
From Basemaps ...
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88 views
Project tiles from custom imagery in transverse mercator with OpenLayers
I have the following parameters of a custom imagery and I need to set-up a layer in OpenLayers with which I would project the tiles properly from this imagery.
TransverseMercator
ellipsoidName=WGS84
...
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421 views
searching GeoJSON features
After googling for many days and reading the OL documentation, I don't understand well how the filterToParams in OpenLayers.HTTP protocol should work, what I'm trying to do is to find and display the ...
