On Wed, 6 Jan 2021 at 07:40, Rahkonen Jukka (MML)
wrote:
>
> Hi,
>
>
>
> Sorry, I am amateur on this area and I do not know what is the difference
> between spheroids and ellipsoids. Do you mean that QGIS is using more
> accurate method than PostGIS for calculating the lengths and areas over
Hi,
Sorry, I am amateur on this area and I do not know what is the difference
between spheroids and ellipsoids. Do you mean that QGIS is using more accurate
method than PostGIS for calculating the lengths and areas over the WGS 84
ellipsoid?
The article that is used as a reference on the
Salve a tutti
sto cercando di utilizzare la classe QgsProcessingParameterEnum in un mio
script.
Ho scritto le seguenti linee, credo siano corrette, ma ottengo l'errore
# 3D select statistics
self.addParameter(QgsProcessingParameterEnum(
name = self.STATISTICS,
description =
Hi,
QGIS is currently built on Proj version 6.3.2-1. If the other libraries
are using a spheroid by default, then they use a sphere for speed and
not an ellipsoid for precision. You can probably force this measurement
in QGIS by creating a custom CRS with a spheroid rather than an
Quando mi capitano di questi "problemi" (è un limite intrinseco agli shp
file), esporto (salvo) tutto come gpkg e risolvo.
Il giorno mar 5 gen 2021 alle ore 17:59 Simo88 ha
scritto:
> Buonasera a tutti,
> sto riscontrando un problema noioso con uno shapefile: esso viene caricato
>
Hi,
I suppose that PostGIS is using the WGS 84 ellipsoid but I am not sure where
from the documentation I could find that information. The ST_Area document
https://postgis.net/docs/ST_Area.html says only "For geography types by default
area is determined on a spheroid with units in square
Hi,
Your method in QGIS is sound. Area is calculated using the wgs84
ellipsoid EPSG 7030. If you reproject to wgs84 zone 35N (I think this is
close), area goes from 249566957499.7546m2 to 249566957499.721m2 or a
difference of 0.0336 m2. I don't think densification would change
things
Buonasera a tutti,
sto riscontrando un problema noioso con uno shapefile: esso viene caricato
correttamente, ma i dati nella tabella attributi non vengono riconosciuti,
come se ci fosse un errore di codifica (nella foto ho sottolineato le
colonne che non collaborano). Ho provato a usare UTF-8 e
Hi,
I wonder what method QGIS is using when it computes ellipsoidal area with $area
function. I made a test with this EPSG:4326 polygon:
POLYGON (( 20.13293641 59.95688345, 26.94617837 60.47397663, 29.74782155
62.56499443, 27.45254202 68.7065034, 23.75771765 68.24937206, 25.42698984
Hi Chris,
many thanks for your reply. I have used the tool and it works very well.
Thanks again. Azzurra
On Sat, 2 Jan 2021 at 17:19, chris hermansen wrote:
> Azzurra and list,
>
> On Sat, Jan 2, 2021, 08:07 Azzurra Lentini
> wrote:
>
>> Hi to all,
>>
>> I am using Qgis 3.16.1.
>>
>> I have a
Awesome! Glad it helped out.
On Tue, 5 Jan 2021 at 13:35, STEINER Andreas wrote:
> Hello Charles..
>
>
>
> Thanks a million it worked!! I used you script.
>
>
>
> Best regards,
>
> *Andreas Steiner*
>
>
>
>
>
> *Von:* Charles Dixon-Paver
> *Gesendet:* Dienstag, 5. Januar 2021 11:47
> *An:*
Any number of things can go wrong with file paths, but QGIS allows you to
embed SVG objects in project files to avoid these problems. If you can open
the project on your windows environment, where the SVG file path is
specified you should be able to use the drop down on the "Browse" menu and
Hello everyone.
I tried to load a QGIS Project which was created on windows. In this project I
used a svg symbol "symbol/blue-marker.svg". In the .qgis file the path is also
"symbol/blue-marker.svg".
When I start my qgisserver and request the map there are only this ? questions
marks because
Hi,
When we install QGIS on devices we have a series of customisations particular
to our work environment but I notice that the user profile is only generated
when the user opens the application for the first time. I was wondering whether
a simple python script as shown on 1. Introduction -
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