OpenLayers is a JavaScript library for creating dynamic map widgets for web sites.
7
votes
4answers
10k views
How to add a simple WFS layer from GeoServer to OpenLayers map?
I'm trying to add one of the included datasets with GeoServer to an OpenLayers map. I've followed the OpenGeo tutorials, seen similar thread on here, but I can't seem to crack it. Can somebody take a ...
3
votes
3answers
4k views
Problems with OpenLayers and WFS - proxy.cgi issues
I am having problems getting WFS data to display on a map using OpenLayers/GeoExt/GeoServer.
I created a proxy script like on this page:
...
9
votes
3answers
5k views
Google Maps layer copyright popup every time map updated / user input
I have used a Google Maps hybrid layer in Openlayers in my HTML5 iOS app for months now and it worked perfectly. Just recently they changed something because the 'Map data...' line at the bottom looks ...
4
votes
4answers
3k views
How to reproject base layers in OpenLayers?
The issue is:
I have vector/topo/image tiled maps for some places in north america which were published as ArcGIS Server REST service. These maps (A) are based in EPSG26912 projection. Now I wanna ...
4
votes
2answers
940 views
Unable to create WFS successfully
I know there has been lots of WFS assistant and I did follow this one word by word, which I found was the best in the entire gis stack but still no clue why I am unbale to render a WFS on base map.
...
11
votes
2answers
2k views
Using Geodesic Measurements for Circle Radii?
I am currently developing an OpenLayers mapping site. Measurements can be made using a line tool, and an area tool. Both of these are currently set to calculate geodesic measurements as outlined in ...
3
votes
1answer
8k views
How to add GeoServer wfs layer on OpenLayers?
I can't seem to add a WFS layer like this. It works when i copy all this code locally but as soon as i change the values to point to my own layer within my own GeoServer
this is the response viewed ...
33
votes
3answers
4k views
Openlayers Animation Examples and Algorithms
i wonder for a long time if people in this community uses openlayers for animation needs.
we have know this that animating on browser is a little bit exhausting for it but when a map meets with ...
15
votes
4answers
3k views
Maximum number of point features in an OpenLayers vector layer
In your experience, how many point features can be added to an OpenLayers vector layer (new OpenLayers.Layer.Vector("Point Layer")) before it goes unusably slow?
My use case is to display points from ...
12
votes
2answers
2k views
How can I switch baselayers as a user zooms in to the map in OpenLayers
I have a map which overlays Open Street Map data on imagery for Pennsylvania. As a baselayer to the roads (and eventually other layers) I have two baselayers - Blue Marble NG and USGS EROS 1ft ...
7
votes
4answers
6k views
Overlaying lat/lon points on Google layer in OpenLayers
I'm stuck adding a vector point in lat/lon on top of a Google layer in OpenLayers. The point is moving when I pan the map. This doesn't happen if I replace the Google layer with a layer in WGS84. How ...
3
votes
2answers
4k views
Display a WFS layer with OpenLayers
Good Morning!
I have some troubles displaying a WFS layer with OpenLayers and hope someone here can give me a hint. Before moving on, I precise that I have already checked other posts, like here and ...
1
vote
2answers
588 views
Why should we use a proxy script for Apache, Geoserver, OpenLayers?
I can't understand why we use proxy( OpenLayers.ProxyHost)for WMSGetFeatureInfo request in open layer.
I am using open layer 2.10 ,apache-tomcat-6.0.35 and geoserver.
Why we use proxy?
How should ...
19
votes
7answers
6k views
Options for displaying PostGIS vectors in OpenLayers
I am very new to web-mapping, so this question may be a little misguided.
I want to have a very simple web interface using OpenLayers (or even Google Maps if that will be easier) which can display a ...
14
votes
3answers
2k views
How to put GeoServer layers behind authentication?
I want to publish map layers using OpenLayers and GeoServer. While this is easy enough to set up, I'm a bit lost when it comes to authentication possibilities. What I want is to create different users ...
5
votes
1answer
2k views
Openlayers wfs vector layer
I'm trying to add a vector layer with a wfs layer and it's not working.Can anyone point a solution?
Openlayers code:
var wfs = new OpenLayers.Layer.Vector(
"Stavros Features",
...
7
votes
4answers
1k views
How to close watermarks window in QGIS Openlayers plugin?
I'm using Quantum GIS Ver. 1.7.4. I have upgraded openlayers plugin 0.7 to 0.9. However when I open google satellite, a watermarks/copyright dialog box "Data Peta@2012 ..." appear in the middle of the ...
4
votes
2answers
925 views
I want to edit corresponding postgresql data of a vector from openlayers- how to do it?
I want to edit the corresponding text/numeric data type columns of a vector through openlayres, when a user click/mouse over a vector. like,
http://dev4.mapgears.com/bdga/bdgaWFS-T.html#
any ...
1
vote
2answers
364 views
Is it required to use BBOX strategy with WFS protocol in OpenLayers?
is it a must to use BBOX strategy with WFS protocol in Vector layers ?
I cannot display this layer without BBOX strategy:
vLayer = new OpenLayers.Layer.Vector("Test", {
styleMap: new ...
3
votes
2answers
3k views
OpenLayers load WFS vector layer: how to check whether all features are returned from server?
in my app, it takes several seconds to return all features of a WFS layer from server, I am just wondering whether there is a way to check whether all features are returned in coding, so that we can ...
3
votes
2answers
3k views
Drawing circles on map using openlayers
I want to draw circles of certain radius on a map using openlayers . But the latitude,longitude & radius values are given in a excel sheet. I badly need a help from you people to how to carry in ...
2
votes
2answers
1k views
How to configure Proxy.cgi with IIS
I installed GeoServer on server 172.20.100.13 and i also publish my OpenLayers application on same server. when i make the request to this server for accessing the page like, ...
1
vote
1answer
836 views
How to use cql_filter in OpenLayers.Control.WMSGetFeatureInfo?
I am a newbie and I am using OpenLayers, GeoServer 2.1.3. I have a
function that works to filter the markers on the map with a CQL_FILTER
function. But when I click on a marker it shows a popup with
...
1
vote
1answer
933 views
WFS layer not showing? [duplicate]
Possible Duplicate:
How to add GeoServer wfs layer on OpenLayers?
I'm really new to this and am making a map for a university project, I can't get my WFS layer to show up on my map, the WMS ...
33
votes
3answers
8k views
What is the current Web Mercator projection code?
The web mercator projection, popularised by Google Maps, seems to be given a new EPSG code every couple of years.
EPSG:900913 (Google in calculator text) was an unofficial code
EPSG:3785 - is the ...
15
votes
5answers
5k views
Map projection in OpenLayers
I want to overlay some data whose projection is WGS-84 on Google map layer in OpenLayers. But I just can't make them in the right place. I did as follows:
map = new OpenLayers.Map('map', {
...
7
votes
2answers
3k views
Search functionality in Openlayers/Geoserver
I am using Openlayers,Geoserver & Postgis.... My postgis tables are having columns as id, name, POINT/POLYGON/LINE. Each table corresponds to a layer that I am showing in layerswitcher in OL. I ...
4
votes
2answers
1k views
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 ...
11
votes
1answer
517 views
Understanding OpenLayers documentation
Within the openlayers documentation I’ve noticed that “options” is many times used to show that the constructor takes parameters. But where can I get the details for this parameter {object}? How does ...
7
votes
5answers
2k views
Can you use ArcGIS Online Base Maps without ESRI Software?
Since the end of January 2011:
"ArcGIS Online map services are
available at no cost regardless of
use." - http://www.esri.com/software/arcgis/arcgisonline/standard-maps.html
However, the ...
4
votes
2answers
710 views
How to collect data via WFS and Popup
I have a map with a WFS-Layer and I am able to add Polygons to my data stored in a PostGIS-database, served with Geoserver (Openlayers, Geoserver 2.1.4, PostGIS 2.0 for PostgreSQL 9.1).)
How can I ...
4
votes
1answer
4k views
Openlayers and Geoserver: OSM/Google Maps and WMS Overlay
I am experiencing projection problems with the following set up:
GeoServer with ESPG:4326 based shapefiles (*.shp)
OpenJump to edit my shapefiles
Openlayers with EPSG:900913 base layers
GeoServer ...
3
votes
2answers
2k views
Using OpenLayers (with OpenStreetMaps) and PostGis for rendering data acquired from GPS tracking device?
I'm researching and planing to acquire data from GPS device and store them in postGIS database, then use geodjango to process/work them out and finally chart them on a map with OpenLayers.
Will these ...
2
votes
3answers
2k views
Render vectors from OSM data in POSTGIS database
I'm a newbie when it comes to mapping application. I had successfully loaded my OpenstreetMap data in a Postgresql/PostGIS database. Now my problem is how to render the vector data (the POI's, ways, ...
5
votes
1answer
1k views
How to add KML data but from variable - not from url?
I have a working map that retrieves KML from a url, but now I need to get the KML data from a local variable instead. Is there support for this, and if so what is the syntax. Searched the api and ...
4
votes
1answer
781 views
Does OpenLayers supports KML Ground Overlays?
I am not able to display Ground Overlays in a KML file with OpenLayers. Does OpenLayers supports KML Ground Overlays? If not, how would I proceed in writing my own code or plugin for OpenLayers so ...
3
votes
3answers
4k views
How to dynamically update a KML layer in OpenLayers 2.10?
Arguably, this is a easy question for you guys GIS expert. Here is the question, how to outsource a dynamic KML file using JavaScript in OpenLayers. I want to refresh every 7 seconds.
Below are ...
2
votes
2answers
1k views
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 ...
2
votes
1answer
3k views
Setting up MapServer WMS and use it with OpenLayers
I have set up MapServer WMS on the localhost by the following map file:
MAP
NAME "Prvi_WMS"
SIZE 600 300 # 600 by 300 pixel image output
PROJECTION
"init=epsg:4326"
END
...
1
vote
1answer
585 views
Problems using geoserver and postgis to perform wfs transaction?
I have been following the tutorial for transaction.
I am using apache webserver and jetty powered geoserver for hosting and using proxy.cgi file for bypassing XHR requests. as described in tutorial ...
1
vote
1answer
647 views
OpenLayers: Feature edit handles not appearing when addUniqueValueRules applied
I have been pulling my hair out over this issue and am now wondering if it is a bug rather than something I am doing wrong.
The Problem: I have a vector layer that users can edit. Each feature on the ...
6
votes
2answers
1k views
OpenLayers/proj4js and the EPSG:27700 (UK) Projection
I'm trying to use OpenLayers to transform projections, which in turn uses the http://proj4js.org/ library.
var ll = new OpenLayers.Projection('EPSG:4326');
var a = new ...
4
votes
2answers
2k views
Setup own Openlayers Proxyhost [duplicate]
Possible Duplicate:
Problems with OpenLayers and WFS - proxy.cgi issues
I have seen some example related to WMS Get Feature Info like :
...
3
votes
1answer
297 views
How do I set attributes when creating vectors using OpenLayers and WFS-T?
I have published a WFS-T layer (using geoserver) and am able to add, edit and delete features using OpenLayers and it's Vector layer.
But, I don't know how can I populate additional attributes using ...
3
votes
1answer
471 views
affine transformation on geotiff
I have a bunch of geotiffs stored in a PostGIS DB that i am mounting on my OpenLayers map.
They all have the geoTransform information in them. I just want to know how i can mount them on my ...
2
votes
3answers
484 views
Displaying Google Maps and OpenStreetMap map in Java?
Is there any Java API that is like OpenLayers ?
I would like to display google Maps and Openlayers Maps in a java application
2
votes
1answer
1k views
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 ...
2
votes
1answer
1k views
Problems adding KML layer in OpenLayers
I'm stuggling to add a KML layer to a simple test OpenLayers map - no errors are shown, but the KML layer does not display on the map.
I've tried multiple samples including the Sundials on a ...
2
votes
1answer
303 views
routing using openlayers and pgrouting
I would like to do a Dijkstra routing using pgrouting and openlayers. I have the downloaded osm data. I am following the workshop given in this link. But since I am very new to this I found it ...
2
votes
1answer
340 views
Syntax of WFS request in OpenLayers
I am in need of the correct syntax for loading WFS layer using OpenLayers. I have gone through many examples on the OpenLayers site and other examples, but can't figure out how to use the necessary ...
