Re: [Qgis-user] Crashing

2017-05-09 Thread Nyall Dawson 
On 10 May 2017 at 13:54, Allan Younger  wrote:
> I am having major problems with the latest QGIS 2.18.7 crashing all the time
> with only a very small number of layers open.
> Have uninstalled & re-installed 3 times.
> Previous versions handled huge amount more data.
> Running a 64 bit 16gb wind 7pro system.
> Allan Younger

Can you please check:
1. do you have on the fly reprojection enabled?
2. are any layers in your project in a different projection to the
project itself?
3. if so, does removing these layers from the project help?

Nyall
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[Qgis-user] Crashing

2017-05-09 Thread Allan Younger 
I am having major problems with the latest QGIS 2.18.7 crashing all the 
time with only a very small number of layers open.

Have uninstalled & re-installed 3 times.
Previous versions handled huge amount more data.
Running a 64 bit 16gb wind 7pro system.
Allan Younger___
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Re: [Qgis-user] Keeping only POIs X kms from a trace?

2017-05-09 Thread Matt Boyd 
Hi Winfried,
usually in QGIS, unless it's specified differently, the distance field is
in the same units as the project properties. So, 5km would be 5000m in the
the projected UTM zones which use meters.
If 0,05 worked then I assume that your project is in
degrees/minutes/seconds (https://en.wikipedia.org/wiki/Decimal_degrees)
which is approximately 5km at the equator, close enough for what you want
to do this time.

One of the key things you'll need to know about if you keep working on GIS
stuff is projections, QGIS can automatically reproject for map displays.
However, when doing a calculation / operation that involves 2 or more
inputs then I make sure to reproject all the inputs to the same system and
work on those files only (save as and select a common projection) knowing
the UTM zone or whatever meters/feet projection is used locally is helpful
when you need to work out distances and areas in useful units.

Matt



On Tue, May 9, 2017 at 7:22 PM, Winfried  wrote:

> Thank you.
>
> Turns out I was pretty close to the solution: The error was in the order
> parameters were set in the Spatial Query dialog. Also, there is no
> information on the unit used for Distance in the Fixed Distance Buffer; I
> guess "0,05" means 5kms.
>
> 
>
> I'll see if a simple Python script can perform the same thing, or even
> split
> campsites into regions instead of whole nations.
>
>
>
> --
> View this message in context: http://osgeo-org.1560.x6.
> nabble.com/Keeping-only-POIs-X-kms-from-a-trace-tp5319730p5319849.html
> Sent from the QGIS - User mailing list archive at Nabble.com.
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[Qgis-user] Merging Sentinel Images

2017-05-09 Thread Grant Boxer 
I am attempting to merge two adjacent Sentinel 2 images, but when I do it
via the Raster > Miscellaneous > Merge option, I get the two merged parts
with a different scaling in the merged image. Any suggestions on how to get
a consistent scaling across the entire merged image?

 

Grant Boxer

Maylands, Western Australia, 6931

 

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[Qgis-user] Problems installing Mac version from homebrew

2017-05-09 Thread Jesús Lopez 
When I try to install last Mac version from Osgeo brew with brew install 
https://raw.github.com/osgeo/homebrew-osgeo4mac/master/qgis2.rb I get this: 
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in
 `require': cannot load such file -- mach (LoadError)
from 
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in
 `require'
from /usr/local/Library/Homebrew/extend/pathname.rb:2:in `'
from 
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in
 `require'
from 
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in
 `require'
from /usr/local/Library/Homebrew/global.rb:3:in `'
from 
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in
 `require'
from 
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in
 `require'
from /usr/local/Library/brew.rb:16:in `’

and nothing happens….
I get the same outuput with brew install qgis2

Any idea what am I doing wrong?

Thanks in advance. 
Jesus
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Re: [QGIS-it-user] Primo ritrovo QGIS-IT

2017-05-09 Thread Luca Mandolesi 
Aggiunto. Se non vi piace il termine per la formula cambiate pure...ne ho
messe tre che mi paiono ragionevoli.

Ciao
ciao
Luca

Il giorno 9 maggio 2017 17:03, Paolo Cavallini  ha
scritto:

> Il 09/05/2017 16:50, Luca Mandolesi ha scritto:
> > Ragazzi, aggiungo qui una cosa, che potranno essere discusse alla voce:
> > collaborazioni.
>
> > Intanto ve la butto lì senza pretese, così se vi viene in mente qualche
> > formula adatta la applichiamo.
>
> ottimo, per cortesia aggiungi qui:
> https://github.com/qgis-it/qgis-it.github.io/wiki/QHF-IT1#programma
> possibile che solo 8 siano interessati?
> intendiamoci: l'HF è utile anche in tre, non ci sono problemi, ma mi
> pare strano che così pochi fra i power users a sviluppatori italiani
> siano interessati.
> pareri?
> grazie.
> --
> Paolo Cavallini - www.faunalia.eu
> QGIS & PostGIS courses: http://www.faunalia.eu/training.html
> https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
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Re: [QGIS-it-user] Primo ritrovo QGIS-IT

2017-05-09 Thread Stefano Campus 
Ne ho due timidoni che non hanno il coraggio di iscriversi ma stasera
glielo dico.
:-D

Il 09/Mag/2017 17:04, "Paolo Cavallini"  ha scritto:

Il 09/05/2017 16:50, Luca Mandolesi ha scritto:
> Ragazzi, aggiungo qui una cosa, che potranno essere discusse alla voce:
> collaborazioni.

> Intanto ve la butto lì senza pretese, così se vi viene in mente qualche
> formula adatta la applichiamo.

ottimo, per cortesia aggiungi qui:
https://github.com/qgis-it/qgis-it.github.io/wiki/QHF-IT1#programma
possibile che solo 8 siano interessati?
intendiamoci: l'HF è utile anche in tre, non ci sono problemi, ma mi
pare strano che così pochi fra i power users a sviluppatori italiani
siano interessati.
pareri?
grazie.
--
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
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Re: [QGIS-it-user] Primo ritrovo QGIS-IT

2017-05-09 Thread Paolo Cavallini 
Il 09/05/2017 16:50, Luca Mandolesi ha scritto:
> Ragazzi, aggiungo qui una cosa, che potranno essere discusse alla voce:
> collaborazioni.

> Intanto ve la butto lì senza pretese, così se vi viene in mente qualche
> formula adatta la applichiamo.

ottimo, per cortesia aggiungi qui:
https://github.com/qgis-it/qgis-it.github.io/wiki/QHF-IT1#programma
possibile che solo 8 siano interessati?
intendiamoci: l'HF è utile anche in tre, non ci sono problemi, ma mi
pare strano che così pochi fra i power users a sviluppatori italiani
siano interessati.
pareri?
grazie.
-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
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Re: [QGIS-it-user] Primo ritrovo QGIS-IT

2017-05-09 Thread Luca Mandolesi 
Ragazzi, aggiungo qui una cosa, che potranno essere discusse alla voce:
collaborazioni.
Mi piacerebbe proporre un "gemellaggio" o non so io come chiamarlo, tra
Qgis.it e Archeoimprese, per diffondere il software tra le ditte
archeologiche,
capire quali progetti le ditte archeologiche possono finanziare: ad esempio
plugin specifici per il nostro settore (schede ICCD per esempio),
organizzare insieme dandosi man forte degli eventi, diffondere Qgis tramite
i propri canali...ecc ecc. ecc.

Io farei da testa di ponte dentro all'associazione, ai cui iscritti posso
offrire una giornata all'anno di presentazione di Qgis, necessità di
finanziamenti, modalità di sostegno, ecc.

Intanto ve la butto lì senza pretese, così se vi viene in mente qualche
formula adatta la applichiamo.

Ciao
Luca
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Re: [Qgis-user] Keeping only POIs X kms from a trace?

2017-05-09 Thread Winfried 
Thank you.

Turns out I was pretty close to the solution: The error was in the order
parameters were set in the Spatial Query dialog. Also, there is no
information on the unit used for Distance in the Fixed Distance Buffer; I
guess "0,05" means 5kms.

 

I'll see if a simple Python script can perform the same thing, or even split
campsites into regions instead of whole nations.



--
View this message in context: 
http://osgeo-org.1560.x6.nabble.com/Keeping-only-POIs-X-kms-from-a-trace-tp5319730p5319849.html
Sent from the QGIS - User mailing list archive at Nabble.com.
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Re: [Qgis-user] Keeping only POIs X kms from a trace?

2017-05-09 Thread Matt Boyd 
Winfried,
it's difficult for people to offer help if they don't know where to start,
the knowledge level of the person asking the question is basic input.
I don't think anyone is going to answer a question if someone says they
know nothing about GIS, it's too much work if it sounds like someone needs
to be taught and hasn't started reading the online help or tried out the
online tutorials (I've no idea if there are any). But here goes anyway.

The question you have asked is relatively simple.

load your vector lines - this is your bike route into QGIS. If it comes in
as points you'll need to make them into lines.
load the points you want to sample - your campsites

create a fixed distance buffer around the lines, this will be a polygon (a
closed shape, not a line, lines are different) there's a tool under the
vector menu called fixed distance buffer or something like that.

use this polygon and the intersect or clip tools to select and save the
points you want that are within the buffer you created,save/export those as
gpx.

Good luck.



On Mon, May 8, 2017 at 10:45 PM, Winfried  wrote:

> Hello
>
> Archie's Campings* offers a pretty thorough list of campsites in Europe.
>
> Problem is, files are only country-size, so the number of waypoints is
> overwhelming (Here's the UK for instance**).
>
> To plan bike tours, I'd like to…
> 1) import a trace from a GPX file,
> 2) import Archie's list for a given country,
> 3) filter that list to only keep campsites that are 5 kms from the route,
> and
> 4) export the output to a GPX file.
>
> This can be probably be done with QGIS, but I know nothing about GIS :-/
>
> Thanks for any help.
>
> * http://www.archiescampings.eu/
> ** https://s7.postimg.org/4mck58dbf/Archie.s.Campings.UK.png
>
>
>
> --
> View this message in context: http://osgeo-org.1560.x6.
> nabble.com/Keeping-only-POIs-X-kms-from-a-trace-tp5319730.html
> Sent from the QGIS - User mailing list archive at Nabble.com.
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