Tagged Questions
0
votes
1answer
22 views
Marker layer not responding to events in OpenLayers
I have multiple layers in OpenLayers: three vector layers, one google map layer, and a marker layer. I registered feature selected event to all three vector layers (which works fine, but btw is that a ...
1
vote
1answer
31 views
Openlayers Overview - disappearing layers
when I do this:
var options = {
autoPan : true,
size : new OpenLayers.Size(300, 200),
layers : this.map.layers,
mapOptions : {
allOverlays : true
...
0
votes
1answer
64 views
How can I set the base layer of map before initialization?
I have been using map.setBaseLayer(layer); to switch to my preferred map layer, using the localStorage variable layer that is stored in my web browser, upon initialization of the map. But I realize ...
1
vote
0answers
41 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 ...
2
votes
2answers
162 views
Managing a large number of layers in OpenLayers/GeoExt and Geoserver
I am building a web application to facilitate the handling of approximately 2500+ historic maps. I think it would be too difficult for our users to search for specific maps in an ordinary layer tree.
...
0
votes
1answer
42 views
How can I create a button to add a POI layer?
I am making a map of a city with openlayers. I have the shapefile data of the POI (hospital,bank,school etc.) I want to add the layers with buttons not in layerswitcher. Like whereis.com's quick ...
0
votes
0answers
104 views
Get feature from two overlapping KML layers doesn't work
I did an implementation similar to http://openlayers.org/dev/examples/sundials.html
The difference is that I have two or more kml layers at the same location and want to show their information ...
2
votes
0answers
213 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 ...
0
votes
0answers
60 views
How can I display remotely the Panoramio's KML layers
I'm trying to display in my web portal the Panoramio's kml layer. The above code developen in OpenLayers is what I'm doing:
mapa = new OpenLayers.Layer.Vector("Panoramio Photos", {
projection: ...
1
vote
1answer
278 views
Openlayers Vector Feature Popup
im trying to create a popup in Openlayers that would open when someone clicks a marker. And the marker is setup like this: new OpenLayers.Feature.Vector() and not with the ordinary marker layer.
The ...
0
votes
1answer
122 views
Geoserver does not see new layers
I have an existing GeoServer instance running (version 2.1.3). This GeoServer has multiple Workspaces and Stores serving a number of layers as WFS to an OpenLayers map.
I want to update my Stores ...
1
vote
1answer
75 views
OSM labels look as red point in geoserver preview layer. Why?
I've imported shp directory files of OSM to geoserver and the city label layer look like red dots instead of showing labels of street names. Is there a fix for this ? (should I declare this layer kml ...
2
votes
1answer
135 views
What is the easiest way to let a user upload overlayers to openlayers (Geoserver/Mapserver)?
I need to let a user upload vector layers he created with QGIS or MapInfo professional to my website (using OpenLayers as client and either Geoserver or Mapserver as WMS).
What will be the easiest ...
2
votes
1answer
140 views
Openlayers - Get Type of Layer
Is there a way to get the type of all the layers in an OpenLayer maps object? What I am trying to do is iterate over all the layers in my OpenLayers map object and populate a dropdown list with the ...
5
votes
1answer
80 views
Load third-party APIs only when the corresponding map layer is requested?
OpenLayers allows multiple map layers to be hosted on a common platform. If the map application supports a wide variety of maps, say from Google, Yahoo and Microsoft, I find that upon initialization, ...
2
votes
1answer
191 views
How to record a base layer change event in OpenLayers?
The OpenLayers.Control class possesses an eventListener property which could be used in the layer switcher control. I am not sure how to make use of it to detect a base layer change event so that I ...
2
votes
2answers
532 views
How to make the Overlays section in an OpenLayers LayerSwitcher exclusive?
At the simplest level I need to figure out how to create a customized OpenLayers LayerSwitcher Overlays section which is not using Checkboxes, but uses RadioButtons instead.
For my application its ...
3
votes
2answers
412 views
Create multiple vector layers by reading a GeoJSON file once in OpenLayers
I am a begginner to OpenLayers, and my question is about making things more efficient.
My work is about displaying time-dependent weather elements on several point locations on the map. All these ...
2
votes
1answer
966 views
How to change an OpenLayers vector layer from automatic to manual get request?
I have a web server that returns a FeatureCollection in JSON. I was getting this using the code below, which works perfectly:
var vectorLayer = new OpenLayers.Layer.Vector('geoJSON', {
...
0
votes
1answer
264 views
How to Obtain the feature attributes from feature collection
I am able to obtain the features of the layer which is selected by the user in the Layers table and then intersected by a user defined polygon, using e.features. I was able to obtain the attribute ...
0
votes
0answers
104 views
how to show LINESTRING intersection with other layers in Openlayers?
I'm using Postgis/Geoserver/Openlayers and I have a query that gets al the "towns" that are near a "road". Now, "road" and "towns" are different layers, and I want to show them in Openlayers.
But I ...
4
votes
3answers
2k views
Change Icon of Single Vector Feature in Layer
Currently I am trying to change the icon of a particular feature of a vector layer that the user is focusing on. I add each feature to the map like so:
var point = new ...
1
vote
2answers
399 views
How to overlay points from MySQL served by Geoserver on an Openlayers map?
This might be a very basic question as I am new to GeoServer.
What I am trying to do:
I have a MySQL table that stores data attached to a spatial point and have latitude and longitude columns to ...
2
votes
1answer
530 views
Problem with layer order in OpenLayers and Google styled maps
I'm using OpenLayers with Google styled maps. My biggest problem is KML polygon layer which needs to be under roads layer but it isn't (see prtscr). What am I doing wrong?
This is my coding:
...
0
votes
1answer
261 views
How to overlay roads layer on top of all layers in OpenLayers?
I want to put roads layer (from any source, please recommend some..) on top of my KML polygons and base layer:
baseLayer = new OpenLayers.Layer.WMS("OpenLayers WMS", ...
3
votes
1answer
283 views
How to hide some parts of an image layer with OpenLayers?
My Problem
I'm currently displaying a layer image above a Google Maps base layer. I would like, when the user check/uncheck some checkboxes, that some parts of this image layer disappear, and the ...
3
votes
2answers
777 views
Load layers only when zoom level is reached
I'm trying to load different layers based on the user zoom level with OpenLayers. I've seen some similar questions in here, but they load the layer and then hide/show it based on the zoom level.
I ...
0
votes
2answers
729 views
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 ...
1
vote
0answers
80 views
Remake gxp class
I want to remake gxp.editFeature class. In standart class to edit object need to choose it on map. I want choose abject in list of objects and edit it.
So To do this i need make a new gxp.editFeature ...
2
votes
3answers
752 views
Change zIndex of Vectors in openlayers
I have a bunch of linestring features on a vector layer. Some of them overlap. If I trigger the hover event on those features, I want them be in front.
I did find some functions to set the z-index of ...
1
vote
0answers
275 views
Using Google Maps with OpenLayers for some zoom levels
I've had a search on here to see if this has come up but I've not found anything, sorry if this is a duplicate.
I'm trying to use the Google Maps layers with an OpenLayers site, but not for all zoom ...
2
votes
1answer
1k views
XYZ Layer in Open Layers has Missing Tiles
In Open Layers I'm having a missing tile problem where it generates a missing link icon and a pink background. I found several threads including this one saying to add this code
...
1
vote
2answers
195 views
Its possible to catch ServiceException in Openlayers?
Im trying to catch exception in OpenLayers using vector layers in conjunction with http protocol, its possible to intercept an ServiceException from geoserver ... it will be great to display some ...
2
votes
1answer
394 views
How to have a layer with many images that scale?
I know that in OpenLayers you can add Features to a Vector Layer which each have image but then they will not scale (i.e. their size stays the same independent of the current zoom) or at least I do ...
1
vote
2answers
1k views
Some Help to select some features from a vector layer
I have a vector layer (kml) that has some point with scientific name of plants and animals, some description of the place where the people saw them and the coordinates.
Basically the table associated ...
3
votes
2answers
312 views
Unable to select Vector Layer
I am using the following example, to select a vector layer feature on click. The example demonstrates Highlighting and selecting the layer. I was able to successfully implement the Highlighting of the ...
1
vote
1answer
972 views
OpenLayers - How to display selected features as graphic markers?
I'm attempting to render a point feature as a graphic. When that feature is selected I'd like to display a green indicator above the graphic. It seems backgroundGraphic and externalGraphic are ...
2
votes
3answers
2k views
How to get the layer name?
I am using OpenLayers, Geoserver 2.1 CQL language. The problem is that I do not know how to address the layer. I am trying to call a function like this:
var createWmsLayer = function(name, url, ...
