Re: [Qgis-user] adding a simple filled polygon
Hello Bernard, Thanks. I found it eventually. First the pencil and then the "amoeba" to add a polygon. Then capturing the points and with the vertex tool editing them in the list to get the points at the required place. After all this was reasonably easy. This is a tool I'll use more. I'm aware that I have a lot to learn about coordinate systems and projections. But the equipment we use gives us WGS84. So that is what I use. And the required precision isn't that taxing. We are on board of vehicles and get a point every second. So running at 70 km/h is about 20 meters between points. I take it that the error between a cilindrical projection and WGS84 is below that. Thanks again, Johan On Fri, 17 Dec 2021 12:04:18 +0100 Bernd Vogelgesang wrote: > Hi, > > from what I understand, you just need to make your new layer editable > (pencil symbol), then you can see the symbol for adding a polygon. > > Besides that: Be aware that the original coordinate system of GPS points > is EPSG 4326 (unit degrees), and so is the default CRS for layers in > QGIS. In case you want to do more sophisticated operations later with > your data, you should reproject them to a local metric coordinate > system. Tricky topic for beginners. The toolbox is your friend. > > Cheers, > > Bernd > > Am 17.12.21 um 11:10 schrieb Johan De Groote: > > Hello, I'm new to QGIS (and gis in general). For the job I need to make > > events logged form a GPS visible on a map. The events are when we enter or > > leave a zone defined as a polygon. > > > > I managed to get the openstreet view in the background and each type of > > events (entering and leaving) on a separate layer. This worked fine > > following a tutorial I found on the net. Just what I need. > > > > But now I want to enter the zones. These are defined as polygons with each > > cornerpoint defined by GPS coordinates. I have already set those points on > > a separate layer. Now I read the handbook but it is not very clear. It > > starts with adding a new shape layer (ok). But then it gets very muddly for > > me. I tried a tutorial but this is for older versions of QGIS (just as the > > training manual on the QGIS website) and they talk about "click the add a > > polygon icon" which isn't to be found. > > > > So is there somewher a tutorial on how to add a filled polygon on a map > > when you have the points as GPS coordinates? I can add the polygon > > capturing the points on the map, that kind of precision is acceptable for > > my needs. > > > > Thanks, > > Johan > > > > Using: > > > > QGIS version > > 3.22.0-Białowieża > > QGIS code branch > > Release 3.22 > > Qt version > > 5.15.2 > > Python version > > 3.9.9 > > GDAL/OGR version > > 3.3.3 > > PROJ version > > 8.2.0 > > EPSG Registry database version > > v10.038 (2021-10-21) > > GEOS version > > 3.10.0-CAPI-1.16.0 > > SQLite version > > 3.35.5 > > PostgreSQL client version > > No support > > SpatiaLite version > > 5.0.1 > > QWT version > > 6.1.5 > > QScintilla2 version > > 2.11.6 > > OS version > > Gentoo/Linux > > ___ > > Qgis-user mailing list > > Qgis-user@lists.osgeo.org > > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS customized importing apparently causes problems with type checkers/Intellisense
That's interesting, Richard. I'm not sure if this is new with 3.22 or is supposed to be the case for all V2 installs, but it's definitely not in mine. I used the network installer for 3.16.9 LTR. Could anyone with a similar build seeing those same interface files who uses VS Code see if it makes any difference with the Pylance language server? Thanks, Ari On Fri, Dec 17, 2021 at 1:21 AM Richard Duivenvoorde wrote: > On 12/17/21 02:05, Ari Meyer wrote: > > > > I do not see any *.pyi files in my 3.16.9 > LTR's C:\OSGeo4W\apps\qgis-ltr\python\qgis dir nor in any of the subdirs. > Should I be? > > On my virtual windows machine, I installed recently installed a fresh QGIS > using the new osgeo4w v2 installer, and there I have: > > c:\osgeo4w\apps\qgis\python\qgis\_3d.pyi > c:\osgeo4w\apps\qgis\python\qgis\_analysis.pyi > c:\osgeo4w\apps\qgis\python\qgis\_core.pyi > c:\osgeo4w\apps\qgis\python\qgis\_gui.pyi > > I had a look, and apparently I installed 'qgis-full' (giving me 3.22) > there using the 'advanced' route > > Hope this helps, (did not try to do the full route though) > > Regards, > > Richard Duivenvoorde > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] adding a simple filled polygon
Hi, from what I understand, you just need to make your new layer editable (pencil symbol), then you can see the symbol for adding a polygon. Besides that: Be aware that the original coordinate system of GPS points is EPSG 4326 (unit degrees), and so is the default CRS for layers in QGIS. In case you want to do more sophisticated operations later with your data, you should reproject them to a local metric coordinate system. Tricky topic for beginners. The toolbox is your friend. Cheers, Bernd Am 17.12.21 um 11:10 schrieb Johan De Groote: Hello, I'm new to QGIS (and gis in general). For the job I need to make events logged form a GPS visible on a map. The events are when we enter or leave a zone defined as a polygon. I managed to get the openstreet view in the background and each type of events (entering and leaving) on a separate layer. This worked fine following a tutorial I found on the net. Just what I need. But now I want to enter the zones. These are defined as polygons with each cornerpoint defined by GPS coordinates. I have already set those points on a separate layer. Now I read the handbook but it is not very clear. It starts with adding a new shape layer (ok). But then it gets very muddly for me. I tried a tutorial but this is for older versions of QGIS (just as the training manual on the QGIS website) and they talk about "click the add a polygon icon" which isn't to be found. So is there somewher a tutorial on how to add a filled polygon on a map when you have the points as GPS coordinates? I can add the polygon capturing the points on the map, that kind of precision is acceptable for my needs. Thanks, Johan Using: QGIS version 3.22.0-Białowieża QGIS code branch Release 3.22 Qt version 5.15.2 Python version 3.9.9 GDAL/OGR version 3.3.3 PROJ version 8.2.0 EPSG Registry database version v10.038 (2021-10-21) GEOS version 3.10.0-CAPI-1.16.0 SQLite version 3.35.5 PostgreSQL client version No support SpatiaLite version 5.0.1 QWT version 6.1.5 QScintilla2 version 2.11.6 OS version Gentoo/Linux ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] adding a simple filled polygon
Hello, I'm new to QGIS (and gis in general). For the job I need to make events logged form a GPS visible on a map. The events are when we enter or leave a zone defined as a polygon. I managed to get the openstreet view in the background and each type of events (entering and leaving) on a separate layer. This worked fine following a tutorial I found on the net. Just what I need. But now I want to enter the zones. These are defined as polygons with each cornerpoint defined by GPS coordinates. I have already set those points on a separate layer. Now I read the handbook but it is not very clear. It starts with adding a new shape layer (ok). But then it gets very muddly for me. I tried a tutorial but this is for older versions of QGIS (just as the training manual on the QGIS website) and they talk about "click the add a polygon icon" which isn't to be found. So is there somewher a tutorial on how to add a filled polygon on a map when you have the points as GPS coordinates? I can add the polygon capturing the points on the map, that kind of precision is acceptable for my needs. Thanks, Johan Using: QGIS version 3.22.0-Białowieża QGIS code branch Release 3.22 Qt version 5.15.2 Python version 3.9.9 GDAL/OGR version 3.3.3 PROJ version 8.2.0 EPSG Registry database version v10.038 (2021-10-21) GEOS version 3.10.0-CAPI-1.16.0 SQLite version 3.35.5 PostgreSQL client version No support SpatiaLite version 5.0.1 QWT version 6.1.5 QScintilla2 version 2.11.6 OS version Gentoo/Linux ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [QGIS-it-user] errore nel collegamento di due algoritmi di processing nello stesso script
Andrea grazie mille speriamo risolvano questo bug l'ultima domanda: mi hai segnalato che l'errore è in # 4C Output stack stackOut = self.parameterAsOutputLayer( parameters, self.OUTPUT, context) Come sarebbe la versione corretta della sintassi? Grazie di nuovo Giacomo Il giorno ven 17 dic 2021 alle ore 08:56 Andrea Giudiceandrea < andreaer...@libero.it> ha scritto: > Il 16/12/2021 17:45, Andrea Giudiceandrea ha scritto: > > Invece, dei "Warning" non so ancora spiegare il motivo... > > > Gli avvisi "Impossibile aprire ..." (che comunque non sono "errori"), > presenti nel tab OGR del pannello del log dei messaggi, sono generati > dall'algoritmo "Merge" di GDAL (gdal:merge). > > Tale algoritmo genera gli stessi warning anche quando utilizzato > direttamente in maniera interattiva dal pannello degli strumenti di > processing. > > Il bug era già stato segnalato https://issues.qgis.org/issues/19597 > qualche anno fa ed era stata implementata anche una patch > https://github.com/qgis/QGIS/pull/7608 che avrebbe dovuto risolverlo... > ma evidentemente non è stata risolutiva. > > A presto. > > Andrea > ___ > QGIS-it-user mailing list > QGIS-it-user@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/qgis-it-user > ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/qgis-it-user
