[Qgis-user] Read polygon attribute Table

[Nicolas Cadieux]

Hi,

I could only be of help if your are working outside the QGIS API.  I normally work with python directly for this stuff.  I would use a geopandas dataframe that can be easily created. Google Geopandas and you with find it in a flash. 

Nicolas Cadieux

> Le 23 sept. 2020 à 13:13, ming han <dustming at gmail.com> a écrit :
> 
> 
> Hi Nicolas 
> 
>    Many thanks for your reply, would you please give me some specific suggestions. Normally I can read the attribute table by reading the dbf files. but this time I stored the vector object in memory, do not want to save it to files.  
>     I can only read the attribute of this vector object feature by feature. I do not know how to read all attribute at once. 
>  Thanks
> Ming
> 
> Nicolas Cadieux <njacadieux.gitlab at gmail.com> 于2020年9月23日周三 下午12:03写道：
>> Hi,
>> 
>> More knowledgeable people than me surely  respond but are you looking for something like geopandas dataframe?  I image the QGIS API has something like this.
>> 
>> Nicolas Cadieux
>> 
>> > Le 23 sept. 2020 à 11:41, ming han <dustming at gmail.com> a écrit :
>> > 
>> > 
>> > Hi All
>> > 
>> >     Is there a way to read the polygon attribute table at one time with python. I notice that there are several ways to read it feature by feature. 
>> > 
>> > Thanks
>> > Ming
>> > _______________________________________________
>> > Qgis-user mailing list
>> > Qgis-user at lists.osgeo.org
>> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20200923/8c2107e5/attachment-0001.html>