Re: [Qgis-developer] Add virtual layer equivalent in Processing
Hi Victor, On Mon, Dec 5, 2016 at 6:16 PM, Anita Graser wrote: > Thanks Victor! > > On Mon, Dec 5, 2016 at 1:54 PM, Victor Olaya wrote: > >> Anita, Mathieu >> >> I added both of your requests and it should be possible now to use >> tables on both "execute SQL" and "build virtual vector" algorithms >> >> Let me know if you try it (it is on master) > > > The SQL statement I want to execute (and which runs well in Layer | Add > Layer | Add Virtual Layer) is: > > select s_out.y1_statefips, s_out.y2_statefips, > st_centroid(f.geometry) > from fips as f > join stateoutflow1415 as s_out > on f.fips = s_out.y1_statefips > Which Processing tool should I use to create a layer from the above statement? Thank you and best wishes, Anita ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Add virtual layer equivalent in Processing
I think qgis-dev is now a zombie, as it's v2 master, where there has nor been any work for a while. - Buy Pie Spy: Adventures in British pastry 2010-11 on Amazon -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Re-Add-virtual-layer-equivalent-in-Processing-tp5298535p5298722.html Sent from the Quantum GIS - Developer mailing list archive at Nabble.com. ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Add virtual layer equivalent in Processing
Thanks Victor! On Mon, Dec 5, 2016 at 1:54 PM, Victor Olaya wrote: > Anita, Mathieu > > I added both of your requests and it should be possible now to use > tables on both "execute SQL" and "build virtual vector" algorithms > > Let me know if you try it (it is on master) > As far as I can see OGR's Execute SQL takes only one input layer/table. Therefore it's not suitable for the task of joining a vector layer with a table. QGIS' Build virtual vector takes multiple inputs but I'm not sure what it does with them. The help text is a bit short: "This algorithm creates a virtual layer that contains a set of vector layer." That does not sound like it will do the job either. QGIS' Execute SQL seems to allow multiple inputs but doesn't list tables and I didn't see any changes to this algorithm in your recent commits but maybe I missed something? Note: I'm running qgis-dev from OSGeo4W which is probably not up to date with master. The SQL statement I want to execute (and which runs well in Layer | Add Layer | Add Virtual Layer) is: select s_out.y1_statefips, s_out.y2_statefips, st_centroid(f.geometry) from fips as f join stateoutflow1415 as s_out on f.fips = s_out.y1_statefips where fips is a polygon layer and stateoutflow1415 is a CSV. Best wishes, Anita > > Cheers > > 2016-12-05 11:07 GMT+01:00 Mathieu Pellerin : > > Victor, > > > > I was looking into this; it'd be nice for the "build vector layer" > algorithm > > would support/show geometryless layers in the parametermultiinput panel. > > AFAIK, geometryless layers aren't (yet? :) ) supported by the > > parametermultiinput. > > > > Math > > > > On Mon, Dec 5, 2016 at 2:51 PM, Victor Olaya wrote: > >> > >> No, there is no such functionality AFAIK, but it should be easy to add, > i > >> think > >> > >> Can you open a feature request? > >> > >> Also, the execute SQL algorithm can be modified to accept non-spatial > >> tables. That makes sense to me > >> > >> Cheers > >> > >> 2016-12-04 22:28 GMT+01:00 Anita Graser : > >> > Hi, > >> > > >> > Since the user list doesn't seen to have an answer, I'd like to ask > >> > here: > >> > Is there an equivalent to the "add virtual layer" functionality in the > >> > Processing toolbox? > >> > > >> > I want to join multiple csv files to a vector layer (and at the same > >> > time > >> > build a new geometry WKT). This seems most easily done with a virtual > >> > layer. > >> > But I need to script this workflow. > >> > > >> > In the Processing toolbox, I only found the "execute SQL" tool but it > >> > does > >> > not allow selection of non-spatial tables as input. > >> > > >> > Best wishes, > >> > Anita > >> > > >> > > >> > > >> > ___ > >> > Qgis-developer mailing list > >> > Qgis-developer@lists.osgeo.org > >> > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer > >> > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer > >> ___ > >> Qgis-developer mailing list > >> Qgis-developer@lists.osgeo.org > >> List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer > >> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer > > > > > ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Add virtual layer equivalent in Processing
Anita, Mathieu I added both of your requests and it should be possible now to use tables on both "execute SQL" and "build virtual vector" algorithms Let me know if you try it (it is on master) Cheers 2016-12-05 11:07 GMT+01:00 Mathieu Pellerin : > Victor, > > I was looking into this; it'd be nice for the "build vector layer" algorithm > would support/show geometryless layers in the parametermultiinput panel. > AFAIK, geometryless layers aren't (yet? :) ) supported by the > parametermultiinput. > > Math > > On Mon, Dec 5, 2016 at 2:51 PM, Victor Olaya wrote: >> >> No, there is no such functionality AFAIK, but it should be easy to add, i >> think >> >> Can you open a feature request? >> >> Also, the execute SQL algorithm can be modified to accept non-spatial >> tables. That makes sense to me >> >> Cheers >> >> 2016-12-04 22:28 GMT+01:00 Anita Graser : >> > Hi, >> > >> > Since the user list doesn't seen to have an answer, I'd like to ask >> > here: >> > Is there an equivalent to the "add virtual layer" functionality in the >> > Processing toolbox? >> > >> > I want to join multiple csv files to a vector layer (and at the same >> > time >> > build a new geometry WKT). This seems most easily done with a virtual >> > layer. >> > But I need to script this workflow. >> > >> > In the Processing toolbox, I only found the "execute SQL" tool but it >> > does >> > not allow selection of non-spatial tables as input. >> > >> > Best wishes, >> > Anita >> > >> > >> > >> > ___ >> > Qgis-developer mailing list >> > Qgis-developer@lists.osgeo.org >> > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer >> > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer >> ___ >> Qgis-developer mailing list >> Qgis-developer@lists.osgeo.org >> List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer >> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer > > ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Add virtual layer equivalent in Processing
Victor, I was looking into this; it'd be nice for the "build vector layer" algorithm would support/show geometryless layers in the parametermultiinput panel. AFAIK, geometryless layers aren't (yet? :) ) supported by the parametermultiinput. Math On Mon, Dec 5, 2016 at 2:51 PM, Victor Olaya wrote: > No, there is no such functionality AFAIK, but it should be easy to add, i > think > > Can you open a feature request? > > Also, the execute SQL algorithm can be modified to accept non-spatial > tables. That makes sense to me > > Cheers > > 2016-12-04 22:28 GMT+01:00 Anita Graser : > > Hi, > > > > Since the user list doesn't seen to have an answer, I'd like to ask here: > > Is there an equivalent to the "add virtual layer" functionality in the > > Processing toolbox? > > > > I want to join multiple csv files to a vector layer (and at the same time > > build a new geometry WKT). This seems most easily done with a virtual > layer. > > But I need to script this workflow. > > > > In the Processing toolbox, I only found the "execute SQL" tool but it > does > > not allow selection of non-spatial tables as input. > > > > Best wishes, > > Anita > > > > > > > > ___ > > Qgis-developer mailing list > > Qgis-developer@lists.osgeo.org > > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer > > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer > ___ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Add virtual layer equivalent in Processing
No, there is no such functionality AFAIK, but it should be easy to add, i think Can you open a feature request? Also, the execute SQL algorithm can be modified to accept non-spatial tables. That makes sense to me Cheers 2016-12-04 22:28 GMT+01:00 Anita Graser : > Hi, > > Since the user list doesn't seen to have an answer, I'd like to ask here: > Is there an equivalent to the "add virtual layer" functionality in the > Processing toolbox? > > I want to join multiple csv files to a vector layer (and at the same time > build a new geometry WKT). This seems most easily done with a virtual layer. > But I need to script this workflow. > > In the Processing toolbox, I only found the "execute SQL" tool but it does > not allow selection of non-spatial tables as input. > > Best wishes, > Anita > > > > ___ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Add virtual layer equivalent in Processing
Hi, Since the user list doesn't seen to have an answer, I'd like to ask here: Is there an equivalent to the "add virtual layer" functionality in the Processing toolbox? I want to join multiple csv files to a vector layer (and at the same time build a new geometry WKT). This seems most easily done with a virtual layer. But I need to script this workflow. In the Processing toolbox, I only found the "execute SQL" tool but it does not allow selection of non-spatial tables as input. Best wishes, Anita ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
