No popup with openlayers on getfeatureinfo to mapserver wms. The mapserver respects my templateline, because if i comment it out, the getfeatureinfo request doesnt work any longer. I have setup a jsfiddle with my wms overlay and the wmsgetfeatureinfo request. In this example the openlayers client requests the images as png8. Ogr feature output depends on mapserver being built against the gdalogr library. I have tried to connect to my wms service using qgis and leaflet library. The wms getfeatureinfo response is designed to return the attributes of features queried in a map in various formats such as html, xml, and plain text. How to use getfeatureinfo with mapserver and openlayers. From the the plugins menu in qgis, choose fetch python plugins. I am trying to get a wmsgetfeatureinfo request to work on my mapserver wms layer but i am not sure how to correctly configure my map file and the request in openlayers. In many cases, the default html, xml, or plain text response is appropriate, but there may be a situation when you want to customize the response format or schema to execute specific business logic. Wms, getfeatureinfo, popup demonstrates the wmsgetfeatureinfo control for fetching information about a position from wms via getfeatureinfo request. The data from the current layer will only be rendered where it intersects features from the layername layer. It provides an output driver to produce feature style output suitable as a return result from wms getfeatureinfo or wfs getfeature requests.
Openlayers getfeatureinfo wms with huge amount of data. Browse other questions tagged openlayers 2 mapserver getfeatureinfo or ask your own question. Shows how to fetch features per layer name in a single wms getfeatureinfo request here map tile. Wmsgetfeatureinfo on mapserver wms layer in openlayers 2. Openlayers control to manage getfeatureinfo capability. I think when we click on feature openlayers getfeatureinfo is not able to callget data from geoserver.
I have set up mapserver wms service with a point layer. Configuring ms4w and mapcache for use in openlayers. I think this is a general problem with getfeatureinfo then, not specific to the raster support. This document assumes that you are already familiar with certain aspects of mapserver. Its all down to the response from the wms request texthtml. It is primarily used to pass specialized raster processing options to the gdal based raster renderer.
For the vector objects the information displayed are the objects properties. Shows how to fetch features per layer name in a single wms getfeatureinfo request demonstrates the use of the layers option in the olformatwmsgetfeatureinfo format object, which allows features returned by a single wms getfeatureinfo request that asks for more than one layer to be read by layer name. Contribute to landgategovhack development by creating an account on github. If the current layer has labelling configured, then only labels whos labelpoint fall. Format, and fires a getfeatureinfo event with the click position, the raw body of the response, and an array of features if it successfully read the response. As well as handling many input formats, mapserver has may output formats for both raster and vector. Ive come back to this project and ive managed to solve my problem. To find the plugin, enter openlayers in the filter box, then select openlayers plugin from the list. This example shows how to trigger wms getfeatureinfo requests on click for a wms tile layer. Mapserver, which he is expecting mapserver to pass on to the census server.
Ms4w homepage windows installer for mapserver mapserver documentation open source web mapping engine mapcache mapservers tile caching engine openlayers api frontend javascript framework step 0. Im going to raise the issue on the mapserverdev list, and see if anyone knows if this is a bug, or if anyone wants to fix it. If you want to allow wms getfeatureinfo on all features inside a. About products community development downloads documentation faq. Mapserver ignores my templatefile for getfeatureinforequests. Customizing a wms getfeatureinfo responsedocumentation. Once its highlighted, click the install plugin button. If you want to try out openlayers without downloading anything not recommended for production, include the following in the head of your html page. This will download the plugin from the repository, install it, and load it into qgis. Per default the library loaded from the mapserver web server. Currently, only mapserver supports wmst but the geoserver team is working on it. So it hits a feature if i change the coordinates i get different featurenumbers, but i cannot get any stuff from my template.
Get an image url this layer asynchronously, and execute a callback when the image url is generated. Issuing getfeatureinfo requests with a wms tiled source this example shows how to trigger wms getfeatureinfo requests on click for a wms tile layer. I am serving up a wms layer from geoserver in openlayers and am trying to extract a specific attribute from an object in this layer when i click on the. Understanding getgetfeatureinfourl method openlayers 3.
Mapserver supports 3 types of responses to this request. Mapserver supports the following wms versions when acting as client. Default openlayers demo using sample wms service from ms4w. The following processing options are supported in mapserver 4.
Gets vector features for locations underneath the mouse cursor. Contribute to openlayers ol2 development by creating an account on github. Generally, i have got some results, but with some issues. Find file copy path fetching contributors cannot retrieve contributors at this time. Openlayers library renders mapserver wms layer with errors. This is the png format but using only 256 colours, with each pixel stored in 8bits, rather than the default png32 which can contain up to 16 million different colours, allows for. Develop simple web gis application using geoserver, openlayers, geoext and postgis part1 duration. Ms4w users can install both openlayers and geomoose as readytouse packages. This should be a closed polygon for behavior approximating a free selection.
In publishing interactive web maps using qgis, i presented two plugins for exporting web maps from qgis. This control handles click or hover events, attempts to parse the results using an openlayers. Getfeatureinfo optional, retrieves the underlying data, including geometry. For the wms and wmts layers this is the response of the getfeatureinfo request which is shown to the user. Im going to raise the issue on the mapserver dev list, and see if anyone knows if this is a bug, or if anyone wants to fix it. And now im trying to write a simple wms client using openlayers library. Download mapserver source code and supporting libraries. Mapserver since getfeatureinfo is a wms protocol operation ol correctly should not apply it to mapserver layers even though mapserver is fully capable of speaking wms. Somewhere in that passing, his request is failing, possibly due to mapserver not correctly handling the passing of the name with spaces. This uses chaikins algorithm to smooth drawn lines. Looking at the getfeatureinfo responses i can see that the coordinates coming back from the new version of geoserver are not in the correct crs.