Re: [Qgis-user] Hillshade Rough Blocks for 1m Rasters?

[cgray]

Nicolas, 

My x, y, and z are all in meters for my raster. The CRS for the project is also 
x, y, and z in meters. 

I tried your suggestion for changing the resampling. It definitely eliminated 
the problem, however it results in too much smoothing for my purpose. I do want 
to be able to see the actual pixel, but I want that pixel to be a single color 
representative of its value rather than a color with a boarder as shown in my 
screenshots. 

It seems this only occurs when the raster resolution matches the base unit of 
the CRS. I think this is a bug, but I have not exhausted the configuration 
options yet. 

Thank you, Chris

-Original Message-
From: Qgis-user  On Behalf Of Priv.-Doz. Dr. 
Maria Shinoto
Sent: Monday, June 29, 2020 7:15 PM
To: Nicolas Cadieux 
Cc: Alister Hood ; qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] Hillshade Rough Blocks for 1m Rasters?

A month ago or so I had exactly the same problem and could solve it with these 
tips from Nicolas. Good luck!

Maria


> Am 30.06.2020 um 07:32 schrieb Nicolas Cadieux :
> 
> Hi,
> 
> If your x and y distance unit is different from the z distance (like long lat 
> degrees for x and y and meters for z), you will need a z Factor, or you need 
> to save the raster in a crs that has x,y,z in the same unit (like meter).
> 
> https://www.esri.com/arcgis-blog/products/product/imagery/setting-the-
> z-factor-parameter-correctly/
> 
> You can also improve the look in the layer/Symbology/Resampling and select 
> cubic for "zoomed in" and Average for "zoomed out".
> 
> Nicolas
> 
> On 2020-06-29 6:23 p.m., Alister Hood wrote:
>> It does shade the pixel, but it also shades the edges unless the layer is 
>> being reprojected.
>> There is a ticket for this, but you can workaround it by enabling resampling 
>> for that layer.
>>  
>> Date: Mon, 29 Jun 2020 16:57:11 -0400
>> From: 
>> To: 
>> Subject: [Qgis-user] Hillshade Rough Blocks for 1m Rasters?
>> Message-ID: <024601d64e57$dcbddd00$96399700$@graytechsoftware.com>
>> Content-Type: text/plain; charset="utf-8"
>> 
>> If I use a 1m resolution raster on a CRS in meters and render it as a 
>> hillshade, it appears to shade the edges of each pixel instead of the 
>> pixel
>> itself:
>> 
>> If I use, a raster made in a CRS with ft for units displayed on a CRS 
>> in meters, it renders each pixel smoothly:
>> 
>> How do I get the hillshade to render smoothly always, especially in a 
>> CRS in meters when using metric units for the raster?
>> 
>> Thank you, Chris
>> 
>> 
>> ___
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>> Qgis-user@lists.osgeo.org
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>> https://lists.osgeo.org/mailman/listinfo/qgis-user
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>> https://lists.osgeo.org/mailman/listinfo/qgis-user
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Re: [Qgis-user] Terrarium formatted color ramp

[Nicolas Cadieux]

Could you use the raster calculator to separate the values and then recombine 
them in RGB?

Nicolas Cadieux
Ça va bien aller!

> Le 29 juin 2020 à 20:19, Artemis Live  a écrit :
> 
> 
> I have a project in qgis that requires the generation of tiles in terrarium 
> format. I'm confused on how this would be done. The tiles are in the 
> following format: red = elevation/256 + 128, green = remainder/1, blue = 
> remainder*256. Is there a way to create a color ramp that works in this way 
> so that I can use the built in tile processing tool instead of developing an 
> entirely new program in the python console?
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[QGIS-it-user] Thread sull'utilità delle traduzioni

[Stefano Campus]

ciao a tutti, vi segnalo una interessante discussione sull'utilità delle
traduzioni a fronte di vistosi errori (almeno in portogallo).

http://osgeo-org.1560.x6.nabble.com/Re-Qgis-tr-Concerns-about-translations-and-QGIS-overall-credibility-td5441097.html

s.



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[Qgis-user] Terrarium formatted color ramp

[Artemis Live]

I have a project in qgis that requires the generation of tiles in terrarium
format. I'm confused on how this would be done. The tiles are in the
following format: red = elevation/256 + 128, green = remainder/1, blue =
remainder*256. Is there a way to create a color ramp that works in this way
so that I can use the built in tile processing tool instead of developing
an entirely new program in the python console?
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Re: [Qgis-user] Hillshade Rough Blocks for 1m Rasters?

[Priv.-Doz. Dr. Maria Shinoto]

A month ago or so I had exactly the same problem and could solve it with these 
tips from Nicolas. Good luck!

Maria


> Am 30.06.2020 um 07:32 schrieb Nicolas Cadieux :
> 
> Hi,
> 
> If your x and y distance unit is different from the z distance (like long lat 
> degrees for x and y and meters for z), you will need a z Factor, or you need 
> to save the raster in a crs that has x,y,z in the same unit (like meter).
> 
> https://www.esri.com/arcgis-blog/products/product/imagery/setting-the-z-factor-parameter-correctly/
> 
> You can also improve the look in the layer/Symbology/Resampling and select 
> cubic for "zoomed in" and Average for "zoomed out".
> 
> Nicolas
> 
> On 2020-06-29 6:23 p.m., Alister Hood wrote:
>> It does shade the pixel, but it also shades the edges unless the layer is 
>> being reprojected.
>> There is a ticket for this, but you can workaround it by enabling resampling 
>> for that layer.
>>  
>> Date: Mon, 29 Jun 2020 16:57:11 -0400
>> From: 
>> To: 
>> Subject: [Qgis-user] Hillshade Rough Blocks for 1m Rasters?
>> Message-ID: <024601d64e57$dcbddd00$96399700$@graytechsoftware.com>
>> Content-Type: text/plain; charset="utf-8"
>> 
>> If I use a 1m resolution raster on a CRS in meters and render it as a
>> hillshade, it appears to shade the edges of each pixel instead of the pixel
>> itself:
>> 
>> If I use, a raster made in a CRS with ft for units displayed on a CRS in
>> meters, it renders each pixel smoothly:
>> 
>> How do I get the hillshade to render smoothly always, especially in a CRS in
>> meters when using metric units for the raster?
>> 
>> Thank you, Chris
>> 
>> 
>> ___
>> 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
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Re: [Qgis-user] Hillshade Rough Blocks for 1m Rasters?

[Nicolas Cadieux]

Hi,

If your x and y distance unit is different from the z distance (like 
long lat degrees for x and y and meters for z), you will need a z 
Factor, or you need to save the raster in a crs that has x,y,z in the 
same unit (like meter).


https://www.esri.com/arcgis-blog/products/product/imagery/setting-the-z-factor-parameter-correctly/

You can also improve the look in the layer/Symbology/Resampling and 
select cubic for "zoomed in" and Average for "zoomed out".


Nicolas

On 2020-06-29 6:23 p.m., Alister Hood wrote:
It does shade the pixel, but it also shades the edges unless the layer 
is being reprojected.
There is a ticket for this, but you can workaround it by enabling 
resampling for that layer.


Date: Mon, 29 Jun 2020 16:57:11 -0400
From: mailto:cg...@graytechsoftware.com>>
To: mailto:qgis-user@lists.osgeo.org>>
Subject: [Qgis-user] Hillshade Rough Blocks for 1m Rasters?
Message-ID: <024601d64e57$dcbddd00$96399700$@graytechsoftware.com
>
Content-Type: text/plain; charset="utf-8"

If I use a 1m resolution raster on a CRS in meters and render it as a
hillshade, it appears to shade the edges of each pixel instead of
the pixel
itself:

If I use, a raster made in a CRS with ft for units displayed on a
CRS in
meters, it renders each pixel smoothly:

How do I get the hillshade to render smoothly always, especially
in a CRS in
meters when using metric units for the raster?

Thank you, Chris


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Re: [Qgis-user] Hillshade Rough Blocks for 1m Rasters?

[Alister Hood]

It does shade the pixel, but it also shades the edges unless the layer is
being reprojected.
There is a ticket for this, but you can workaround it by enabling
resampling for that layer.


> Date: Mon, 29 Jun 2020 16:57:11 -0400
> From: 
> To: 
> Subject: [Qgis-user] Hillshade Rough Blocks for 1m Rasters?
> Message-ID: <024601d64e57$dcbddd00$96399700$@graytechsoftware.com>
> Content-Type: text/plain; charset="utf-8"
>
> If I use a 1m resolution raster on a CRS in meters and render it as a
> hillshade, it appears to shade the edges of each pixel instead of the pixel
> itself:
>
> If I use, a raster made in a CRS with ft for units displayed on a CRS in
> meters, it renders each pixel smoothly:
>
> How do I get the hillshade to render smoothly always, especially in a CRS
> in
> meters when using metric units for the raster?
>
> Thank you, Chris
>
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[Qgis-user] Hillshade Rough Blocks for 1m Rasters?

[cgray]

If I use a 1m resolution raster on a CRS in meters and render it as a
hillshade, it appears to shade the edges of each pixel instead of the pixel
itself:

 



 

 

If I use, a raster made in a CRS with ft for units displayed on a CRS in
meters, it renders each pixel smoothly:

 



 

 

How do I get the hillshade to render smoothly always, especially in a CRS in
meters when using metric units for the raster?

 

Thank you, Chris

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Re: [Qgis-user] open street map data in QGIS 3.12

[Stefan Giese (WhereGroup)]

Hi Andre,

did you try the key:value: shop:supermarket instead

Mit freundlichen Grüßen
Stefan Giese
Projektleiter/Consultant
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Jetzt neu: Webinare und Online-Schulungen
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Germany

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Fax: +49 (0)761 / 519 102 - 11

stefan.gi...@wheregroup.com
www.wheregroup.com
Geschäftsführer:
Olaf Knopp, Peter Stamm 
Amtsgericht Bonn, HRB 9885

Am 29.06.2020 um 20:44 schrieb Andre Ulrich:
> Dear community,
>
> I have to create a shape file containing all supermarkets in cologne.
> Therefore I want to use data from open street maps. I have already
> installed the (experimental) plugin "QuickOSM" for enabling queries on
> osm data directly in QGIS.
> For the query I have to pass a key and a value. According to
> https://wiki.openstreetmap.org/wiki/Key:building
> there should be a value "supermarket" belonging to the key "building".
> In the QuickOSM-window I can choose the key "building" - fine. But
> when it comes to the value, I can't choose "supermarket" - it's not
> even listed (and I can't type it too). There are other values like
> "commercial", "industrial" or "retail", which might also fit. But a
> query using these values yields way too many results. I really only
> want to have supermarkets like rewe or penny or lidl or aldi or
> something like those.
>
> I also have downloaded a shape containing all buildings in
> "Regierungsbezirk Köln" from
> http://download.geofabrik.de/europe/germany/nordrhein-westfalen.html
> as shp.zip.
> There are 2.5M objects in this shape. I have tried to filter them,
> using the attribute tabel -> select by expression. Everytime I try to
> filter these data my computer ends up crashing.
> I only see this loading symbol where my cursor is supposed to be. When
> I stop the programme manually I only get to see this error message
> (also in picture attached).
>
> Does anyone have a clue, where to get good data for my purposes
> (supermarkets in cologne)?
> Or should I simply wait longer for QGIS to filter these 2.5M objects
> (although I have waited for 30 minutes or so)?
>
> Thanks for your efforts in advance!
> many greetings!
> André
>
> *
> QGIS 3.12.3-Bucuresti
> installed with OSGeo4W
> Windows 10 Pro
> *
>
>
>
>
> -- 
> Andre Ulrich
> Email: andre.ulrich63...@gmail.com 
>
>
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[Qgis-user] open street map data in QGIS 3.12

[Andre Ulrich]

Dear community,

I have to create a shape file containing all supermarkets in cologne.
Therefore I want to use data from open street maps. I have already
installed the (experimental) plugin "QuickOSM" for enabling queries on osm
data directly in QGIS.
For the query I have to pass a key and a value. According to
https://wiki.openstreetmap.org/wiki/Key:building
there should be a value "supermarket" belonging to the key "building".
In the QuickOSM-window I can choose the key "building" - fine. But when it
comes to the value, I can't choose "supermarket" - it's not even listed
(and I can't type it too). There are other values like "commercial",
"industrial" or "retail", which might also fit. But a query using these
values yields way too many results. I really only want to have supermarkets
like rewe or penny or lidl or aldi or something like those.

I also have downloaded a shape containing all buildings in
"Regierungsbezirk Köln" from
http://download.geofabrik.de/europe/germany/nordrhein-westfalen.html
as shp.zip.
There are 2.5M objects in this shape. I have tried to filter them, using
the attribute tabel -> select by expression. Everytime I try to filter
these data my computer ends up crashing.
I only see this loading symbol where my cursor is supposed to be. When I
stop the programme manually I only get to see this error message (also in
picture attached).

Does anyone have a clue, where to get good data for my purposes
(supermarkets in cologne)?
Or should I simply wait longer for QGIS to filter these 2.5M objects
(although I have waited for 30 minutes or so)?

Thanks for your efforts in advance!
many greetings!
André

*
QGIS 3.12.3-Bucuresti
installed with OSGeo4W
Windows 10 Pro
*




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Email: andre.ulrich63...@gmail.com 
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Re: [QGIS-it-user] Grant Proposal 2020

[girarsi AT posteo DOT eu]

Il 29/06/20 17:34, matteo ha scritto:
> Salve a tutti,
> 
> ho preparato un modulo che raccoglie le varie proposte di questa tornata
> di Grant Proposal:
> 
> https://forms.gle/rSRLP3kdHkhXT22q8
> 
> vi chiederei di compilarlo ENTRO E NON OLTRE venerdì 3 luglio ore 23.59.
> 
> Si possono scegliere AL MASSIMO 6 proposte (che verranno pesate dal PSC
> internazionale) e potete inviare la vostra scelta UNA SOLA VOLTA.
> 
> Raccoglierò i voti e come rappresentante della comunità italiana
> esprimerò la nostra scelta.
> 
> Per dubbi non esitate a contattarmi
> 
> A presto e grazie
> 
> Matteo
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Chiede l'accesso ad un account gmail, non è possibile compilarlo senza
questa richiesta?


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Re: [QGIS-it-user] Grant Proposal 2020

[Totò]

Fatto,

grazie Matteo!

saluti



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[QGIS-it-user] Grant Proposal 2020

[matteo]

Salve a tutti,

ho preparato un modulo che raccoglie le varie proposte di questa tornata
di Grant Proposal:

https://forms.gle/rSRLP3kdHkhXT22q8

vi chiederei di compilarlo ENTRO E NON OLTRE venerdì 3 luglio ore 23.59.

Si possono scegliere AL MASSIMO 6 proposte (che verranno pesate dal PSC
internazionale) e potete inviare la vostra scelta UNA SOLA VOLTA.

Raccoglierò i voti e come rappresentante della comunità italiana
esprimerò la nostra scelta.

Per dubbi non esitate a contattarmi

A presto e grazie

Matteo
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Re: [QGIS-it-user] Problema con Qgis.

[Carlo Tersigni]

Grazie. Comunque da quando ho scoperto che alcune mail che vengono da
"tramite lists.osgeo.org" GMail le mette nelle spam, sto molto attento a
controllare, prima di cestinare.
Saluti.
Carlo

Il giorno lun 29 giu 2020 alle ore 10:18 Stefano Campus 
ha scritto:

> Gmail non ha simpatia per alcuni provider, libero.it in primis e manda
> tutto in spam.
>
> Il gestore della mailing list la fa passare, infatti la vedo qua su
> nabble, quindi il consiglio è sempre dare un'occhiata allo spam e mettere
> dei filtri antispam
>
> s.
>
> Il lun 29 giu 2020, 09:54 Carlo Tersigni  ha
> scritto:
>
>> Anche a me GMail ha messo questo messaggio tra le spam.
>> carlo
>>
>> Il giorno dom 28 giu 2020 alle ore 20:32 alper78  ha
>> scritto:
>>
>>> davidegilibe...@yahoo.it wrote
>>> > Ho un problema con Qgis. Devo inserire su Qgis due immagini una tif e
>>> una
>>> > ecw, sono due immagini che si trovano su due coordinate diverse e la
>>> mia
>>> > professoressa mi ha detto che per fare in modo che si sovrappongano una
>>> > sull’altra devo mettere le stesse coordinate sia al progetto che alle
>>> > immagini. Ho fatto così facendo un paio di tentativi ma purtroppo le
>>> due
>>> > immagini rimangono sempre su due piani diversi. Le coordinate che la
>>> > professoressa mi ha detto di usare sono Monte Mario Italy Zone 2 epsg
>>> > 3004.
>>>
>>> Ciao,
>>> immagino tu intenda dire che le immagini hanno “sistemi di coordinate”
>>> diversi, perché altrimenti è ovvio che non si sovrappongano.
>>> Comunque QGIS dovrebbe riproiettare al volo i dati modo da averli
>>> sovrapponibili. Ti consiglio di controllare nelle proprietà di ogni
>>> layer-immagine, nella scheda “Sorgente”, che il sistema di riferimento
>>> sia
>>> quello effettivo dell’immagine (non quello che tu gli vuoi dare). Poi
>>> nelle
>>> nelle proprietà del progetto imposti il sistema di riferimento che vuoi
>>> tu.
>>>
>>> PS: ho visto questo messaggio solo dal sito internet perché il programma
>>> di
>>> posta me l’ha messo nella spam. Non so se è successo solo a me o anche ad
>>> altri.
>>>
>>>
>>>
>>> -
>>> Alessandro Perego
>>> http://www.alspergis.altervista.org
>>> --
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>>> http://osgeo-org.1560.x6.nabble.com/QGIS-Italian-User-f5250612.html
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>>>
>>
>>
>> --
>> *Carlo TERSIGNI*
>> *Via della Badia di cava 104, scala  Z, 00142 - ROMA*
>>
>> *tel.: 333-4653589e-mail: carter@gmail.com *
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*tel.: 333-4653589e-mail: carter@gmail.com *
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Re: [QGIS-it-user] Problema con Qgis.

[Totò]

Buongiorno,
ho segnalato il problema a Stefano Campus,
lui, giustamente, osserva che su Mailman la fa passare (infatti su Nabble
non ci sono problemi) il problema è a valle, cioè GMail.

È gmail che la sposta in SPAM.

saluti



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Re: [QGIS-it-user] Problema con Qgis.

[Stefano Campus]

Gmail non ha simpatia per alcuni provider, libero.it in primis e manda
tutto in spam.

Il gestore della mailing list la fa passare, infatti la vedo qua su nabble,
quindi il consiglio è sempre dare un'occhiata allo spam e mettere dei
filtri antispam

s.

Il lun 29 giu 2020, 09:54 Carlo Tersigni  ha scritto:

> Anche a me GMail ha messo questo messaggio tra le spam.
> carlo
>
> Il giorno dom 28 giu 2020 alle ore 20:32 alper78  ha
> scritto:
>
>> davidegilibe...@yahoo.it wrote
>> > Ho un problema con Qgis. Devo inserire su Qgis due immagini una tif e
>> una
>> > ecw, sono due immagini che si trovano su due coordinate diverse e la mia
>> > professoressa mi ha detto che per fare in modo che si sovrappongano una
>> > sull’altra devo mettere le stesse coordinate sia al progetto che alle
>> > immagini. Ho fatto così facendo un paio di tentativi ma purtroppo le due
>> > immagini rimangono sempre su due piani diversi. Le coordinate che la
>> > professoressa mi ha detto di usare sono Monte Mario Italy Zone 2 epsg
>> > 3004.
>>
>> Ciao,
>> immagino tu intenda dire che le immagini hanno “sistemi di coordinate”
>> diversi, perché altrimenti è ovvio che non si sovrappongano.
>> Comunque QGIS dovrebbe riproiettare al volo i dati modo da averli
>> sovrapponibili. Ti consiglio di controllare nelle proprietà di ogni
>> layer-immagine, nella scheda “Sorgente”, che il sistema di riferimento sia
>> quello effettivo dell’immagine (non quello che tu gli vuoi dare). Poi
>> nelle
>> nelle proprietà del progetto imposti il sistema di riferimento che vuoi
>> tu.
>>
>> PS: ho visto questo messaggio solo dal sito internet perché il programma
>> di
>> posta me l’ha messo nella spam. Non so se è successo solo a me o anche ad
>> altri.
>>
>>
>>
>> -
>> Alessandro Perego
>> http://www.alspergis.altervista.org
>> --
>> Sent from:
>> http://osgeo-org.1560.x6.nabble.com/QGIS-Italian-User-f5250612.html
>> ___
>> QGIS-it-user mailing list
>> QGIS-it-user@lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/qgis-it-user
>>
>
>
> --
> *Carlo TERSIGNI*
> *Via della Badia di cava 104, scala  Z, 00142 - ROMA*
>
> *tel.: 333-4653589e-mail: carter@gmail.com *
> ___
> QGIS-it-user mailing list
> QGIS-it-user@lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/qgis-it-user
>
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Re: [QGIS-it-user] Problema con Qgis.

[Carlo Tersigni]

Anche a me GMail ha messo questo messaggio tra le spam.
carlo

Il giorno dom 28 giu 2020 alle ore 20:32 alper78  ha
scritto:

> davidegilibe...@yahoo.it wrote
> > Ho un problema con Qgis. Devo inserire su Qgis due immagini una tif e una
> > ecw, sono due immagini che si trovano su due coordinate diverse e la mia
> > professoressa mi ha detto che per fare in modo che si sovrappongano una
> > sull’altra devo mettere le stesse coordinate sia al progetto che alle
> > immagini. Ho fatto così facendo un paio di tentativi ma purtroppo le due
> > immagini rimangono sempre su due piani diversi. Le coordinate che la
> > professoressa mi ha detto di usare sono Monte Mario Italy Zone 2 epsg
> > 3004.
>
> Ciao,
> immagino tu intenda dire che le immagini hanno “sistemi di coordinate”
> diversi, perché altrimenti è ovvio che non si sovrappongano.
> Comunque QGIS dovrebbe riproiettare al volo i dati modo da averli
> sovrapponibili. Ti consiglio di controllare nelle proprietà di ogni
> layer-immagine, nella scheda “Sorgente”, che il sistema di riferimento sia
> quello effettivo dell’immagine (non quello che tu gli vuoi dare). Poi nelle
> nelle proprietà del progetto imposti il sistema di riferimento che vuoi
> tu.
>
> PS: ho visto questo messaggio solo dal sito internet perché il programma di
> posta me l’ha messo nella spam. Non so se è successo solo a me o anche ad
> altri.
>
>
>
> -
> Alessandro Perego
> http://www.alspergis.altervista.org
> --
> Sent from:
> http://osgeo-org.1560.x6.nabble.com/QGIS-Italian-User-f5250612.html
> ___
> QGIS-it-user mailing list
> QGIS-it-user@lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/qgis-it-user
>


-- 
*Carlo TERSIGNI*
*Via della Badia di cava 104, scala  Z, 00142 - ROMA*

*tel.: 333-4653589e-mail: carter@gmail.com *
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