OpenLayers 2. OpenLayers 2 has two types of layers when operating in your application: base layers and overlays. This difference controls several aspects of how you interact with an OpenLayers 2 Map.
Base Layers are mutually exclusive layers, meaning only one can be enabled at any given time. The currently active base layer determines the available projection coordinate system and zoom levels available on the map. Whether a layer is a base layer or not is determined by the isBaseLayer property on the layer.
Most raster layers have the isBaseLayer property set to true by default. It can be changed in the layer options. Non base layers — sometimes called overlays — are the alternative to Base Layers. Multiple non-base layer can be enabled at a time. Some types of overlays support reprojection to the base layer projection at layer load time.
Most overlay layers default to non-base overlays, as does the base Layer class. Non-base Layers always display above base layers.
Raster Layers are imagery layers. These layers are typically in a fixed projection which can not be changed on the client side. Layer for using Google Maps data within OpenLayers 2. For an example of usage, see the Spherical Mercator example. If you are overlaying other data on a Google Maps base layer, you will want to be interacting with the Google Maps layer in projected coordinates.
This is important if you are working with imagery data especially. This layer is not required to interact with MapServer. Unless you have a strong reason not to, you should use the Layer. WMS instead of a Layer. If you are using a Layer.
MapServer, and your map is being repeated several times, this indicates that you have not properly configured your map to be in a different projection.
OpenLayers 2 can not read this information from your mapfile, and it must be configured explicitly. The FAQ on setting different projection properties provides information on how to configure different projections in OpenLayers 2. Overlay layers are any layers that have their source data in a format other than imagery.
It only takes a minute to sign up. It should be enough removing '? Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Ask Question. Asked 6 years, 11 months ago. Active 3 years, 3 months ago. Viewed 25k times. Satya Chandra Satya Chandra 1, 4 4 gold badges 19 19 silver badges 38 38 bronze badges. Have you tried this sample: openlayers.
Ya i tried the basic wms layer, now i want to overlay my layers from geoserver. Please edit your question and put it there, instead of in a comment. Also, what is the url of your geoserver? Your comment i tried the basic wms layer, now i want to overlay my layers from geoserver doesn't make any sense. There should be no syntax difference. Active Oldest Votes. Your OpenLayers. Please consider the version of the your API. Also define suitable projection for your layer.
Tommaso Tommaso 1, 8 8 silver badges 12 12 bronze badges. Paras Talwar Paras Talwar 1. Sign up or log in Sign up using Google. Sign up using Facebook.Deploy an OpenStreetMap slippymap on my own website. For a more up to date example use leaflet instead.
This simple example may help if you are Deploying your own Slippy Map. Please note that tile images are coming from the OpenStreetMap servers.
Although OSM are supporting this kind of usage at the moment, we offer no guarantees. There may be downtime planned or unplannedand tile URLs may change. If you are expecting heavy user load, then you should discuss with everyone first Contact. You should consider following the other instructions on creating your own tilesor set up your own squid cache for tiles.
This will reduce the dependency for you, and will ease bandwidth usage for the OSM servers. First, create a folder to work in.
Download a stable release of OpenLayers from openlayers. Then, copy one of the following into a new HTML file, and view it in a browser. If you are deploying your own tile images for example, with Mapnikjust use the layer definition below:. This restricts the map to showing the area around Oxford, and zoom levels To add lower zooms, add new numbers in the resolutions array each one is double the next.
You can override the location of the attribution text and scale line, and the font used, by adding the following lines in the style section. If your coordinates are in a different projection, you can add Proj4js to perform reprojections.
Add the proj4js. This example was originally created by Harry Wood and anyone else who edits this page. It is intentionally more basic, with only one layer defined, and no support for URL params permalink etc. So adding these features is not necessarily an improvement. In fact, if you have ideas for making this even more simple, that would be good. From OpenStreetMap Wiki.
Subscribe to RSS
It only takes a minute to sign up. So far I could display the openstreetmap world including zoom etc. When you define your vector source, put the projection setting pointing to the target coordinate reference system see the docs :.
Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 5 years, 2 months ago. Active 3 years, 9 months ago. Viewed 41k times. Selphiron Selphiron 2 2 gold badges 8 8 silver badges 22 22 bronze badges. Active Oldest Votes.
When you define your vector source, put the projection setting pointing to the target coordinate reference system see the docs : new ol. Would I still have to do that if mygeojson.
I don't think so. Syntax has changed, see sevenboarder answer. I believe this has changed for OL3 V3. I have a working sample with OpenLayers 3. Isti 1 1 silver badge 5 5 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook.
The dark mode beta is finally here. Change your preferences any time.Openlayers 6 Tutorial #3 - First Web Map
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Now I want to add a Popup with some informations. I want to add something like this:. The first line can be compiled, but when I add the second line, the browser doesn't show my map. I think it might have to do with the query-lonLat, but I doesn't have the necessary OpenLayers-skills to find out.
According OpenLayers documentationyou are missing in a popup constructor the anchor parameter between "Text" and true. Probably this is the source of your problem. This parameter has null value in the example for a popup:. Learn more.
Creating a vector layer
Asked 6 years, 9 months ago. Active 5 years, 3 months ago. Viewed 12k times. I'm having trouble with OpenLayers. Map "mapdiv" ; map. LonLat Projection "EPSG"map. Markers "Markers" ; map. Pixel - size. Marker query, icon ; markers. FramedCloud "Popup", query, null, "Text", true ; map.
I would appreciate an answer very much. Joel 6, 4 4 gold badges 43 43 silver badges 53 53 bronze badges.
Active Oldest Votes. FramedCloud "Popup", myLocation. Or elsewhere. In function map. See OpenLayers documentation dev. I think it is a good practice to use all defined parameters, because it often creates problems. Hopefully it will work, after adding all parameters. FramedCloud "Popup", query, null, "Text", null, true ; map. You should add popup map. Sign up or log in Sign up using Google. Sign up using Facebook.OpenLayers v6.
Check out the docs and the examples to get started. The full distribution can be downloaded from the release page. OpenLayers makes it easy to put a dynamic map in any web page. It can display map tiles, vector data and markers loaded from any source. OpenLayers has been developed to further the use of geographic information of all kinds. OGC mapping services and untiled layers also supported. Mobile support out of the box.
Build lightweight custom profiles with just the components you need. Style your map controls with straight-forward CSS. Hook into different levels of the API or use 3rd party libraries to customize and extend functionality. In case you are not ready yet for the latest version of OpenLayers, we provide links to selected resources of older major versions of the software.
Please consider upgrading to benefit of the latest features and bug fixes. Get best performance and usability for free by using recent versions of OpenLayers. A high-performance, feature-packed library for all your mapping needs. Latest OpenLayers v6. Quick Start Seen enough already?
Go here to get started. Get the Code Get the latest release or dig through the archives. Tutorials Spend time learning the basics and graduate up to advanced mapping techniques.
Workshop Want to learn OpenLayers hands-on? Get started with the workshop. Older versions In case you are not ready yet for the latest version of OpenLayers, we provide links to selected resources of older major versions of the software. Latest v5: v5. Fork the repo. Open a ticket. Ask a question.The z-index for layer rendering. At rendering time, the layers will be ordered, first by Z-index and then by position. When undefineda zIndex of 0 is assumed for layers that are added to the map's layers collection, or Infinity when the layer's setMap method was used.
Source for this layer. If not provided to the constructor, the source can be set by calling layer. Render function.
Takes the frame state as input and is expected to return an HTML element. Will overwrite the default rendering for the layer. Dispatches an event and calls all listeners listening for events of this type. The event parameter can either be a string or an Object with a type property. Return the extent of the layer or undefined if it will be visible regardless of extent.
Get the version number for this object. Each time the object is modified, its version number will be incremented. Return the Z-index of the layer, which is used to order layers before rendering.
The default Z-index is 0. Set the extent at which the layer is visible. If undefinedthe layer will be visible at all extents. Sets the layer to be rendered on top of other layers on a map. This is useful for temporary layers. To remove an unmanaged layer from the map, use setMap null. Set the maximum zoom exclusive at which the layer is visible.
Note that the zoom levels for layer visibility are based on the view zoom level, which may be different from a tile source zoom level.
Set the minimum zoom inclusive at which the layer is visible. Sets a collection of key-value pairs. Note that this changes any existing properties and adds new ones it does not remove any existing properties. Set Z-index of the layer, which is used to order layers before rendering.
Methods stableSort. Members code. Fires add change change:length error propertychange remove. Members element index target type.