Re: [Qgis-user] Convert huge shapefile to small size

On 7/28/2022 5:52 AM, krishna Ayyala via Qgis-user wrote: dbf file itself is 5.1GB. Rest all other files are less than 500MB. It is the number of records which is huge. It has about 117,2100 points. Is that 117,200 points or

Re: [Qgis-user] GRASS r.series - ERROR: Unable to load GDAL library

Dear Andrea and all, Please disregard my last message. I don’t know why GRASS GIS Provider plugin deactivated, perhaps because it was crashing and automatically deactivates. Thank you, Regards, Nelson From: Andrea Giudiceandrea Sent: 18 July 2022 16:01 To: Nelson Ribeiro ;

Re: [Qgis-user] Convert huge shapefile to small size

Past a point, trying to run a GIS app with very large data structures just doesn't work well. If you really need all the information you're carrying around for your analysis or whatever, you may need to reach for different tools or use the tools you have differently. I assume it's not so much

Re: [Qgis-user] Convert huge shapefile to small size

dbf file itself is 5.1GB. Rest all other files are less than 500MB. It is the number of records which is huge. It has about 117,2100 points. On Thu, Jul 28, 2022 at 12:02 AM Bernd Vogelgesang via Qgis-user < qgis-user@lists.osgeo.org> wrote: > how big is the dbf file of that shape? Maybe you can

[Qgis-user] Create new geopackage layer

Hello, I am having trouble utilizing the QgsVectorFileWriter.create() method. I am not getting any errors but no layer is being created. I am trying to write a geopackage layer. I know my QgsFields are correct because I have used them for some other code previously. Should the driver name be "ogr"

[QGIS-it-user] R: Google streetview in LWC

Certo funziona. Occhio che però, occorre inserire il codice attivazione del servizio che fornisce Google sull’acquisto del servizio. Da: QGIS-it-user Per conto di Roberto Brazzelli Inviato: giovedì 28 luglio 2022 14:27 A: qgis-it-user@lists.osgeo.org Oggetto: [QGIS-it-user] Google streetview

Re: [Qgis-user] Convert huge shapefile to small size

You could export the shapefile and use *Layer Options > RESIZE=YES*. This is the same as the ogr2ogr switch *-lco RESIZE=YES*, which reduces the attribute column widths down to their minimum width required to store the longest actual value in the data. A dbf file allocates space for the full

[QGIS-it-user] Google streetview in LWC

Ciao a tutti, qualcuno ha provato a installare lo script 1) per google streetview su lizmap? funziona? Grazie Roberto 1) https://github.com/3liz/lizmap-web-client/issues/339 ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org

Re: [Qgis-user] Convert huge shapefile to small size

so, maybe you should really drop all unneccessary fields or maybe all but an id field, and then create a relation to the original database, but in any case I would convert that stuff away from ESRI-Shape to Geopackage beforehand, as is it is a pita. On 28.07.22 13:52, krishna Ayyala wrote:

Re: [Qgis-user] Convert huge shapefile to small size

A shapefile is a vector files, as far as I know. I don't think any rasters are stored in this format. If there is a large volume of data, it may have a great many records referencing a large number of features. Vector layers are usually made up of a number of points that together form one

Re: [Qgis-user] Convert huge shapefile to small size

On Fri, 29 Jul 2022 at 06:22, Madry, Scott via Qgis-user wrote: > > Thanks Chris, but I do think that this is a topic is worth considering by the > QGIS community, beyond the limitations of the archaeic shapefile format. We > are moving into an era of very big data, both raster and vector, and

Re: [Qgis-user] Convert huge shapefile to small size

Scott and list, With respect I think this conversation is moving off the point, which was related to a 5gb shapefile https://en.m.wikipedia.org/wiki/Shapefile Which is beyond the design limits of the Shapefile standards and perhaps therefore the source of the problem that the OP has. Notably

[QGIS-it-user] R: Google streetview in LWC

Credo che l’api key dia già accesso allo streetview. Da: Roberto Brazzelli Inviato: giovedì 28 luglio 2022 17:39 A: Gennaro Comite Cc: qgis-it-user@lists.osgeo.org Oggetto: Re: [QGIS-it-user] Google streetview in LWC Grazie, per codice attivazione intendi api key di google o altro servizio a

Re: [Qgis-user] Create new geopackage layer

*Arjun Dongre*adongre at west-inc.com /Thu Jul 28 08:40:18 PDT 2022/

Re: [Qgis-user] Convert huge shapefile to small size

*chris hermansen* /Thu Jul 28 13:05:08 PDT 2022/ With respect I think this conversation is moving off the point, which was related to a 5gb shapefile https://en.m.wikipedia.org/wiki/Shapefile Which is beyond the design

Re: [Qgis-user] Create new geopackage layer

Il 28/07/2022 18:32, Andrea Giudiceandrea ha scritto: filepath = "[complete file path and file name and extension (.gpkg)] lyrname = "test_layer" fields=QgsFields() fields.append(QgsField("test_field", QVariant.Double)) opts = QgsVectorFileWriter.SaveVectorOptions() writer =

Re: [Qgis-user] Convert huge shapefile to small size

Thanks Chris, but I do think that this is a topic is worth considering by the QGIS community, beyond the limitations of the archaeic shapefile format. We are moving into an era of very big data, both raster and vector, and QGIS should be able to meet this challenge. This will require some

Re: [QGIS-it-user] Google streetview in LWC

Grazie, per codice attivazione intendi api key di google o altro servizio a pagamento dedicato a streetview? Il giorno gio 28 lug 2022 alle ore 16:43 Gennaro Comite < g.com...@padania-acque.it> ha scritto: > Certo funziona. > > Occhio che però, occorre inserire il codice attivazione del

Re: [Qgis-user] Convert huge shapefile to small size

Dear colleagues, As we move more into the world of big data, IOE, data mining, and data analytics, dealing with larger and larger data sets will become required, and, eventually, the norm. GRASS GIS has made very good progress in this regard, optimizing the code to run on massively parallel

Re: [Qgis-user] Convert huge shapefile to small size

how big is the dbf file of that shape? Maybe you can also drop some attributes. Am 28.07.22 um 03:46 schrieb krishna Ayyala via Qgis-user: Hello, I have a shapefile of 5GB in size. Is it possible to convert this shapefile to a smaller size file? It can be any format, not necessarily a

Re: [Qgis-user] Convert huge shapefile to small size

Hi, There is a distinct possibility that the 5GB shape file is corrupt or that it will be if you manipulate it. It’s too big for the normal shape file format. I would first save it as a geopackage then stat looking at why the file is so big. Unless shapes can be simplified without loosing

[Qgis-user] QGIS Open Day July 2022

Dear QGIS Users On Friday, 29th July 2022 we will be holding our monthly QGIS Open Day! What is a QGIS Open Day you may be wondering to yourself? It is an initiative to replace the wonderful community meetups we used to hold every six months when times were different. Like our in-person meetings,

Re: [Qgis-user] GRASS r.series - ERROR: Unable to load GDAL library

Dear Andrea, I’m sorry, GRASS tools have completely disappeared. I’ve upgraded to 3.22.9, I’ve also tried the same workaround of copying the DLL and changing the name, no results. Any suggestion? Thank you! Regards, Nelson From: Andrea Giudiceandrea Sent: 18 July 2022 16:01 To: Nelson Ribeiro