Re: [Qgis-user] QNEAT3 plugin - contact information
Andrea thanks for the info. I will try to contact him using one of the links. Antonio ___ 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] QNEAT3 plugin - contact information
Does someone know how to contact *Clemens Raffler* the developer og QNEAT3 plugin ? I tried to use the Iso-Area as Pointcloud (from Layer) algorithm but it runs an interpolation along the links rather than calculating the costs only at nodes. Have someone experienced the same problem ? Antonio ___ 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] SQL language in DB Manager
Thanks for the info. So we have a mix of SQLite and SpatiaLite functions and QGIS expressions. The problem I see is that QGIS expressions can be used only when a virtual layer is created starting from shapefiles, because, as I have already shown in my previous mail, when working with virtual layers based on tables of a Spatialite database such expressions are not recognized and the system generates an error message. There is no uniformity between the different virtual layers and this could confuse users. Antonio Valanzano ___ 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] SQL language in DB Manager
Does someone know which dialect of SQL QGIS uses when working with virtual layers ? I have got a shapefile named "subway" and when i run the following query using the DB Manager SELECT s.gid, s.geometry FROM subway s WHERE (strpos(s.routes, 'Q') <> 0); it produces a result that I can add to the map canvas as a virtual layer. Such result is in contrast with the QGIS documentation for version 3.22 14.2.5. Creating virtual layers <https://docs.qgis.org/3.22/en/docs/user_manual/managing_data_source/create_layers.html#id24> The SQL query will be executed, regardless of the underlying provider of the airports layer, even if this provider does not directly support SQL queries. 14.2.5.2. Supported query language <https://docs.qgis.org/3.22/en/docs/user_manual/managing_data_source/create_layers.html#id26> <https://docs.qgis.org/3.22/en/docs/user_manual/managing_data_source/create_layers.html#supported-query-language> The underlying engine uses SQLite and SpatiaLite to operate. It means you can use all of the SQL your local installation of SQLite understands. -- However the query I have used contains a function "strpos" which is not part of the SQL language as understood by SQLite. If I run the same query on a layer which is part of a Spatialite database the DB Manager produces the error "no such function: strpos". If I run the same query on a layer which is part of a PostGIS database the DB Manager produces the same result of the virtual layer created from the shapefile. So the question is "which dialect does QGIS use for running the query"? Does it depend on the type of layer on which the query is applied ? Is there a default SQL, which is used in case of a provider that does not directly support SQL queries (such as shapefiles)? Any info would help. Antonio Valanzano ___ 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] Missing python plugin support on Win7
Jurgen
1. here is the output of ver
C:\Users\antonio>ver
Microsoft Windows [Versione 6.1.7601]
2. in C:\OSGeo4W\etc\postinstall I find the file
api-ms-win-core-path-HACK.bat.done
which contains:
setlocal enabledelayedexpansion
for /f "tokens=*" %%v in ('ver') do set v=%%v
set v=%v:*[Version =%
for /f "tokens=1-2 delims=." %%a in ("%v%") do (
set run=1
if %%a gtr 6 set run=0
if %%a equ 6 and %%b geq 2 set run=0
if !run! equ 1 ren bin\api-ms-win-core-path-l1-1-0.dll.w7
api-ms-win-core-path-l1-1-0.dll
)
endlocal
It seems that the rename was done but in reality was not but I do not
understand why.
Does it depend on the version of my os or on the fact that I am using an
italian version of Win7?
Could it be this row: set v=%v:*[Version =% ?
I hope this givesyou some hints to solve the problem.
Antonio
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[Qgis-user] Missing python plugin support on Win7
I have reinstalled the sw version 3.22.13-Białowieża using the Express Install and I noticed that in the bin folder the patch for Win 7 was named api-ms-win-core-path-l1-1-0.dll.w7 and that misspelled name caused the problem of the missing python plugin support. So I deleted the .w7 extension and now everything is working fine. I hope this information could be useful to some other Win7 users. I don't understand the reason for this misspelling during the installation process and only Jurgen can give an answer. As *Jonathan Moules* wrote in a previous thread "QGIS on Windows 7" ".. Something like 10% of all Windows users are Windows 7 after all -.." it is also my opinion that the possibility of using the latest versions of QGIS for Win7 users is relevant and thanks to this patch it is possible. Antonio Valanzano ___ 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] Missing python plugin support on Win7
I have used the latest osgeo4w-setup.exe (which includes the patch for Win7) on a pc with Win7 and I have installed QGIS 3.22.13-Białowieża. It starts but when I try to install a plugin I do not see a list of available plugins and in the "settings" tab there is this message [image: Python_support_missing.JPG] So in Win7 is not possible to use any plugin apart from these 3 [image: Available_plugins.JPG] Is there a way to activate the Python support choosing some options in the setup program ? I have accepted all the default options during the installation. Antonio ___ 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] GRASS provider not working
Dear list members I have installed , using the OSGeo4W installer on a pc running Windows 7 home edition, QGIS 3.16.4 with GRASS 7.8 After the installation the situation of the processing settings is the one described in the attached document "GRASS_settings.pdf". There is no place for specifying the location of the folder where GRASS has been installed (in my case "C:\OSGeo4W64\apps\grass\grass78\bin". So when I try to run the v.clean command I receive the error message described in the attached document "GRASS_error.pdf". Could someone give me an advice ? Antonio Valanzano GRASS_settings.pdf Description: Adobe PDF document GRASS_error.pdf Description: Adobe PDF document ___ 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] file qpj non creato
Cari utenti della lista oggi volendo fare un confronto con alcuni vecchi shapefile ne ho creato un nuovo con QGIS 3.10.2 e mi sono accorto che non viene più creato il file .qpj in aggiunta al classico .prj. Qualcuno sa dirmi da quale versione di QGIS accade ciò ? Antonio Valanzano ___ 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] problemi con menu vector/vettore in QGIS 3.4.6
Ho installato usando osgeo4w-setup-x86 la versione LTR della 3.4 e al primo avvio (senza aver fatto alcuna personalizzazione) mi compare una barra dei menu che contiene le varie voci in inglese ed una voce in italiano (Vettore). La voce Vector è vuota mente la voce Vettore contiene un elenco di funzioni in italiano. E' capitato già a qualcuno ? Antonio Valanzano ps. se cambio la lingua in italiano le voci di menu sono corrette ma alcune voci che compaiono con il tasto destro del mouse su uno dei layer caricati risultano sempre in inglese (es. remove layer e duplicate layer) Solitamente uso sempre la lingua inglese ma la presenza di 2 voci distinte vector e vettore mi ha ha spinto a provare a cambiare la lingua per verificare eventuali anomalie. ___ 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] problemi con plugin go2streetview
Cari membri della lista, dopo aver aggiornato alla versione QGIS 2.18.28 LTR su WIN 7 Professional il plugin go2streetview (versione 7.6) non funziona più correttamente: si apre la finestra della visualizzazione ma non compare alcuna immagine. Ho provato ad installare manualmente la versione precedente (7.5) ma il problema persiste. Ho quindi installato la versione di QGIS 3.6 ed il relativo plugin aggiornato (8.1) e tutto funziona normalmente. Qualcuno ha riscontrato lo stesso problema? Grazie in anticipo per la collaborazione. Antonio Valanzano ___ 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] photos in blob field
Does anyone know how to visualize using QGIS a photo stored in a blob field of a Spatialite table ? Antonio ___ 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] QGIS Processing error on startup
"Couldn't load plugin processing due to an error when calling its initGui() method ... ... WindowsError: [Error 5] Accesso negato: u'C:\\Program Files\\QGIS Brighton' .. Has someone found this problem before ? I have installed QGIS 2.8.2. using OSGe4W network installer 32 bit and when QGIS starts it tries to find an old installation directory (Program Files\\QGIS Brighton) Thanks in advance Antonio Valanzano ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] lidar visualization in qgis
Dear Vincent thanks for the interest in this discussion. I am not a developer but a qgis user and my intention is only to discuss with other users about those minimal functionalities so that somone who is going to develop a plugin/add core functions has a shared idea of what qgis users expect. So I am not able to discuss about technical questions of what kind of library should be used. However I agree with you about adding the support for PostgreSQL PointCloud support since this is already an available datasource. Antonio Valanzano 2014-03-25 21:25 GMT+01:00 Vincent Picavet : > Hello, > > Le mardi 25 mars 2014 21:08:24, antonio valanzano a écrit : > > I would like to start a discussion about the minimal functionalities > that a > > new lidar plugin or a core function should present. > > > > Based on my experience the minimal requirements are: > > > > - to read data in LAS format > > - to visualize points based on classification or intensity > > - to allow the filtering of points based on classification > > - to allow the selection of points with spatial relationship with other > > layers > > - to export filtered points or selected points in LAS format > > + PostgreSQL PointCloud support > > Do you plan any PDAL and/or PCL integration into the core or Processing ? > Maybe pointclouds is more for a second step with data processing > capabilities. > > http://www.pdal.io/ > http://pointclouds.org/ > > Do you have any idea on the 3D visualization aspect ? It is often a strong > use > case. > > Vincent > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] lidar visualization in qgis
I would like to start a discussion about the minimal functionalities that a new lidar plugin or a core function should present. Based on my experience the minimal requirements are: - to read data in LAS format - to visualize points based on classification or intensity - to allow the filtering of points based on classification - to allow the selection of points with spatial relationship with other layers - to export filtered points or selected points in LAS format Antonio Valanzano ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] nodata color in rasters
Someone knows if there is a way to set a color for nodata values in rasters ? Actually in the GUI I didn't find it and nodata values are always displayed as transparent. Antonio Valanzano ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] problems with legends in QGIS 2.0.1 with joined fields
I have noticed a not correct display of categorized type legend using joined fields. If I use one of the joined field for the legend then QGIS shows all the values of the joined table and not only the values which are present in the main table after the join. Anyone has already noticed the same thing ? 2014-02-09 10:51 GMT+01:00 antonio valanzano : > I have noticed a not correct display of categorized type legend using > joined fields. > If I use one of the joined field for the legend then QGIS shows all the > values of the joined table and not only the values which are present in the > main table after the join. > Anyone has already noticed the same thing ? > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
