Hi,
If you figured it out, then we did not lose any time. I will bug you when I
have problems with ArcMap!
Cheers.
Nicolas
Envoyé de mon iPad
> Le 2 sept. 2016 à 08:49, Reginald Carlier [via OSGeo.org]
> <[email protected]> a écrit :
>
> Hi,
>
>
>
> I guess you are right. When I turn off OTF (CRS transformation), the lambert
> 72 shape shows in the right spot on the WGS 84 map.
>
> I have been working too much with ArcMap I guess. Sorry for your lost time.
> It made me a lot wiser.
>
>
>
> Thanks,
>
>
>
> Reginald Carlier
> Deskundige GIS
>
>
>
>
> Gemeente Ingelmunster, Oostrozebekestraat 4, 8770 Ingelmunster
> T +32 51 33 74 39 www.ingelmunster.be
>
>
>
> Van: Nicolas Cadieux [mailto:[hidden email]]
> Verzonden: vrijdag 2 september 2016 14:17
> Aan: Reginald Carlier
> Onderwerp: Re: clip still not working on osm shape
>
>
>
> Hi,
>
>
>
> By "extent", I now understand the you mean that the layer is not in the
> correct spot. (In my mind, extent only changes once the clipping is done.).
>
>
>
> The coordinates may not change much depending on the type of transformation
> you are asking. The idea is to get both layer to overlap in the right spot.
> Then to clip the layers using the clipping tools.
>
>
>
> For both layers (clipping and osm), ask yourself the following: Are both
> layers overlapping? Are both in the correct CRS? Are both correctly
> georeferenced? If so, then you should be able to clip them.
>
>
>
> If the layers overlap, then does the clipping tool work? Try with a simple
> file and test with different files formats. It may be that the osm file
> format is giving you problems. The OSM is a vector file?
>
>
>
> Make sure you turn off the "on the fly CRS". If it's activated, the layer
> will be reprojected on the fly using the project CRS that you see in the
> lower right corner of the screen. I usually use a wms server as a background
> to help georeferenced things.
>
>
>
> Nicolas
>
>
> Envoyé de mon iPad
>
>
> Le 2 sept. 2016 à 02:20, Reginald Carlier <[hidden email]> a écrit :
>
> Hi,
>
>
>
> I tried the Reprojection layer tool but that doesn’t change the extent. The
> reprojected layer appears in the same spot as the old layer.
>
>
>
> Reginald,
>
>
>
> Reginald Carlier
> Deskundige GIS
>
>
>
>
> Gemeente Ingelmunster, Oostrozebekestraat 4, 8770 Ingelmunster
> T +32 51 33 74 39 www.ingelmunster.be
>
>
>
> Van: Nicolas Cadieux [[hidden email]]
> Verzonden: donderdag 1 september 2016 16:31
> Aan: Reginald Carlier
> CC: [hidden email]
> Onderwerp: Re: clip still not working on osm shape
>
>
>
> Hi,
>
> You are correct. Sorry, I was working from memory. Try Qgis geoalgorithms,
> Reprojection layer. You can search the processing plugin with"reprojection".
>
>
>
> The right click is to activate toolbars for the "digitizing"and "advanced
> digitizing toolbars."
>
>
>
> Nicolas
>
>
> Envoyé de mon iPad
>
>
> Le 1 sept. 2016 à 09:57, Reginald Carlier <[hidden email]> a écrit :
>
> Hi Nicolas,
>
>
>
> I’m a little lost here. I use QGIS 2.16.1. When I right click next to the
> toolbars I see no plugin that changes the CRS.
>
> When I save a file there is no option to choose the input CRS and output CRS.
> You can choose the CRS and there’s a checkbox to choose the extent which is
> not checked by default. So I don’t know what to do if I want to change the
> extent to the new CRS.
>
> Which of the 111 geo algorithms should I use to change the CRS and reproject
> the extent?
>
>
>
> Regards,
>
>
>
> Reginald Carlier
> Deskundige GIS
>
>
>
>
> Gemeente Ingelmunster, Oostrozebekestraat 4, 8770 Ingelmunster
> T +32 51 33 74 39 www.ingelmunster.be
>
>
>
> Van: Nicolas Cadieux [[hidden email]]
> Verzonden: donderdag 1 september 2016 15:24
> Aan: Reginald Carlier
> CC: [hidden email]
> Onderwerp: Re: clip still not working on osm shape
>
>
>
> Hi,
>
> To modify the shape files, you need to activate the toolbars by right
> clicking next to a toolbar. You will find a number of plugins also to help
> modify object.
>
>
>
> When you save a file, I think you have a input CRS and a output CRS. Make
> sure the add both. If it's not there, look in the processing toolbar for
> Qgis reprojection tools. What version of Qgis are you working with?
>
>
>
> Nicolas
>
> Envoyé de mon iPad
>
>
> Le 1 sept. 2016 à 09:11, Reginald Carlier <[hidden email]> a écrit :
>
> Hi,
>
>
>
> No as I used QGIS Browser there is no option to save the changes. Also it
> would be great if there was an option to copy, paste or delete a shape.
>
> I guess I have to load the shape in QGIS and change the CRS and then use
> ‘save as’, but when I do that the saved shp shows in the same place as the
> unchanged shp.
>
> How can I adjust the extent so that it shows in the right location?
>
>
>
> Regards,
>
>
>
> Reginald Carlier
> Deskundige GIS
>
>
>
>
> Gemeente Ingelmunster, Oostrozebekestraat 4, 8770 Ingelmunster
> T +32 51 33 74 39 www.ingelmunster.be
>
>
>
> Van: Nicolas Cadieux [[hidden email]]
> Verzonden: donderdag 1 september 2016 14:50
> Aan: Reginald Carlier
> Onderwerp: Re: clip still not working on osm shape
>
>
>
> Hi,
>
> Did you resave the file in a new projection or just specified the layer
> projection by clicking on the layer in the layer manager?
>
>
>
> You need to save the file for the changes to be permanent. There are also
> more complex reprojection tools in Qgis.
>
>
>
> Nicolas
>
> Envoyé de mon iPad
>
>
> Le 1 sept. 2016 à 08:35, Reginald Carlier <[hidden email]> a écrit :
>
> Hi,
>
>
>
> I found that the problem was the conversion of the CRS. When I select the
> shape of the town (Lambert 72) in QGIS Browser and choose WGS 84 as CRS the
> extent is still in Lambert coordinates. I tried the same in ArcMap and there
> I got the same result. Then I tried a function in the toolbox under Data
> Management > Projections and Transformations > Project where you can choose
> the CRS and also the transformation algorithm. Then the shape of the town was
> shown in the right spot. I wonder if there is such a tool in QGIS.
>
>
>
> Regards,
>
>
>
> Reginald Carlier
> Deskundige GIS
>
>
>
>
> Gemeente Ingelmunster, Oostrozebekestraat 4, 8770 Ingelmunster
> T +32 51 33 74 39 www.ingelmunster.be
>
>
>
> Van: Nicolas Cadieux [[hidden email]]
> Verzonden: donderdag 1 september 2016 13:36
> Aan: Reginald Carlier
> Onderwerp: Re: clip still not working on osm shape
>
>
>
> Hi,
>
> Are you running the latest Qgis 2.16? If so, vector tool should be in the
> processing toolbox and not in the vector menu. I have only worked one day
> with 2.16 but it was long enough to see that it needed a complete removal of
> all previous versions as the menu had a mixe of the old and the new version.
> After that, vector tools disappeared from the vector menu and reappeared in
> the new processing menu. I had read about this in a French blog so I was
> expecting it. Could this be the cause of your problem?
>
>
>
> If not, make sure both layers are in the same CRS (like you did) but that
> they also align properly when the "CRS on the fly" is not activated. Try
> loading only those two layers. You could test to see if it's the osm file
> format that is giving you problems by testing the two .shp file.
>
>
>
> Nicolas
>
>
> Envoyé de mon iPad
>
>
> Le 1 sept. 2016 à 05:33, Reginald Carlier <[hidden email]> a écrit :
>
> Hi Nicolas,
>
>
>
> I changed the CRS of the shapefiles so they match (EPSG 4326).
>
> It takes about 30 seconds before the algorithm (Vector > Geoprocessing >
> Clippen) finisches.
>
> Then it loads the resulting shapefile in QGIS but the attributetable is empty
> and the resulting shp is 1 kB.
>
> It looks as the Clip function doesn’t work.
>
>
>
> Regards,
>
>
>
> Reginald Carlier
> Deskundige GIS
>
>
>
>
> Gemeente Ingelmunster, Oostrozebekestraat 4, 8770 Ingelmunster
> T +32 51 33 74 39 www.ingelmunster.be
>
>
>
>
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