Re: [Qgis-user] change CRS of WFS layer
On 13-06-13 05:12, Paul Haakma wrote: Hi All Does anyone know of a way to change the crs of a wfs layer? The 'Add WFS Layer' dialog box has a 'Change' button but it does not allow you to alter the CRS at all. The data set I am trying to access is from LINZ http://data.linz.govt.nz/ and according to their notes it is possible to alter the CRS within the request - as per quote copied from their help notes: The easiest way to re-project your data on the fly is to add the ‘SRSName’ parameter and an EPSG coordinate system id http://www.epsg-registry.org/ to your request: SRSName=SRSName For example, a request of a NZ Government GNSS CORS layer in NZTM2000 http://www.linz.govt.nz/geodetic/datums-projections-heights/projections/new-zealand-transverse-mercator-2000 (EPSG:2193) would look like the following: http://wfs.data.linz.govt.nz/your-API-key/v/x1029/wfs?service=WFSrequest=GetCapabilities*SRSName=EPSG:2193* So it is possible but QGIS currently seems to not allow it? Does anyone know of a way to override this? Have you tried to just put it in the WFS url, so adding SRSName=EPSG:2193 (maybe try with and without caps) Or else, try if via the python console, see: http://www.qgis.nl/2012/10/15/english-python-one-liners-for-adding-wms-wmts-wfs-layers/?lang=en If you sent me a key to try, I can do some testing. Regards, Richard Duivenvoorde ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] change CRS of WFS layer
Hi All Does anyone know of a way to change the crs of a wfs layer? The 'Add WFS Layer' dialog box has a 'Change' button but it does not allow you to alter the CRS at all. The data set I am trying to access is from LINZ http://data.linz.govt.nz/ and according to their notes it is possible to alter the CRS within the request - as per quote copied from their help notes: The easiest way to re-project your data on the fly is to add the ‘SRSName’ parameter and an EPSG coordinate system id http://www.epsg-registry.org/ to your request: SRSName=SRSName For example, a request of a NZ Government GNSS CORS layer in NZTM2000http://www.linz.govt.nz/geodetic/datums-projections-heights/projections/new-zealand-transverse-mercator-2000 (EPSG:2193) would look like the following: http://wfs.data.linz.govt.nz/ your-API-key/v/x1029/wfs?service=WFSrequest=GetCapabilities* SRSName=EPSG:2193* So it is possible but QGIS currently seems to not allow it? Does anyone know of a way to override this? Note - downloading and re-projecting is not a solution in this case, I want the dataset (legal title boundaries) streamed live to various users. If I leave it in it's current CRS (4167) which is unprojected, it displays correctly when using on-the-fly reprojection within QGIS, but then trying to access the $area for a label or using the identify tool crashes QGIS. Am using Windows version, version 009a7d on Win 8 and also tried latest build from a couple of nights ago on a Win 7 machine. Any help appreciated. (Apologies if this comes through twice) -- -Paul ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Change CRS of WFS layer
Hi, When I load a layer from Geoserver using the wfs plugin, how do I change the declared layer srs to a different crs? The Change... button in the plugin doesn't allow me to select other crs. Only the declared srs of the wfs layer is available. you can't, a specific wfs layer can be served only in one CRS, at least on UMN Mapserver. Nevertheless you can reproject as you want the wfs layer as any other vector layer. Cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Change CRS of WFS layer
But isn't wfs suppose to allow you change the CRS and have it serve the reprojected data? In any case, what is the purpose of the CRS Change button in the plugin? My problem is, qgis does not at the moment handle my projections (EPSG:3168 and 3375) correctly. This is my work-around using wfs from Geoserver, Thanks and regards *Hilmy* On Wed, Apr 27, 2011 at 3:10 AM, Giovanni Manghi giovanni.man...@gmail.comwrote: Hi, When I load a layer from Geoserver using the wfs plugin, how do I change the declared layer srs to a different crs? The Change... button in the plugin doesn't allow me to select other crs. Only the declared srs of the wfs layer is available. you can't, a specific wfs layer can be served only in one CRS, at least on UMN Mapserver. Nevertheless you can reproject as you want the wfs layer as any other vector layer. Cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Change CRS of WFS layer
Hi, On Wed, 2011-04-27 at 03:18 +0800, Hilmy Hashim wrote: But isn't wfs suppose to allow you change the CRS and have it serve the reprojected data? In any case, what is the purpose of the CRS Change button in the plugin? this is from the Mapserver manual Contrary to WMS, the OGC WFS specification doesn’t allow a layer (feature type) to be advertised in more than one SRS. Also, there is no default SRS that applies to all layers by default in the OGC WFS spec. However, it is possible to have every layer in a WFS server advertised in a different SRS. so it seems it is really a protocol limitation. My problem is, qgis does not at the moment handle my projections (EPSG:3168 and 3375) correctly. how so? cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Change CRS of WFS layer
Yes, I was just reading that. I was confusing it with wms. So I should set the CRS at the server end. But I still wonder about the Change button in the plugin...? Thanks and regards. *Hilmy* On Wed, Apr 27, 2011 at 3:41 AM, Giovanni Manghi giovanni.man...@gmail.comwrote: Hi, On Wed, 2011-04-27 at 03:18 +0800, Hilmy Hashim wrote: But isn't wfs suppose to allow you change the CRS and have it serve the reprojected data? In any case, what is the purpose of the CRS Change button in the plugin? this is from the Mapserver manual Contrary to WMS, the OGC WFS specification doesn’t allow a layer (feature type) to be advertised in more than one SRS. Also, there is no default SRS that applies to all layers by default in the OGC WFS spec. However, it is possible to have every layer in a WFS server advertised in a different SRS. so it seems it is really a protocol limitation. My problem is, qgis does not at the moment handle my projections (EPSG:3168 and 3375) correctly. how so? cheers -- Giovanni -- ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
