Hi Vincenzo,
not many people here speack italian, and it is also not the idea to
write in languages other than english here.
For that I sure the mailing list on gfoss.it is a better place. on the
other hand, if you write here in english you get exposure to the core
developers and people that develop a lot with/in QGIS.
this also means doing your homeworks before writng. in your specific
case a simple google search "count points in layer pyQGIS " would have
given you the answer [1]. even faster would be to go have a look at the
QGIS API documentation [2]. probably also the qgis python cookbook would
have some hints [3]
So, enjoy counting your points and learning the QGIS docs
ciao
Marco
[1]
http://gis.stackexchange.com/questions/29500/how-do-i-get-feature-count-of-a-qgsvectorlayer
[2]
http://www.qgis.org/api/classQgsVectorLayer.html#a1c6f44a8058902cc15a1eedcf1628d91
[3] http://docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/
On 16.03.2017 10:07, vincenzon...@tiscali.it wrote:
> Ciao,
> Esiste un codice che mi permetta di verificare se esistano o meno dei
> punti in un dato layer?
>
> Saluti.
>
>
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--
Marco Bernasocchi
OPENGIS.ch - berna.io - 27summits.ch
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