Re: [Qgis-user] (no subject)

[Emma Hain via QGIS-User]

Hi Mike
Perhaps these links may assist - make sure you use the temporal tools as
well!
Anita Graser's blog

QGIS Tutorials in Interpolating Point Data

And some background on Interpolation


Cheers
Em

On Wed, 13 Sept 2023 at 03:10, Michael Seear via QGIS-User <
qgis-user@lists.osgeo.org> wrote:

> Dear QGIS support group,
>
> I would be grateful for suggestions about plotting data points from our
> tracker study of bald eagle migration. I am far from being a computer
> expert but, thanks to Youtube, I have managed to download data from the
> main data repository (Movebank) and made simple plot maps and then a kernel
> density heat map. I have attached examples from one of the birds tagged as
> BACA03. The hottest point is the bird's nest next to the highway and the
> second hot area is the local landfill where he gets most of his food.
>
> I would prefer to plot position density as contour lines or isotherms,
> rather than depending on colour density. Does anyone know if that is
> possible in QGIS? Also, is it possible to superimpose a heat map over a
> position plot? I would, of course, be very grateful for any other
> suggestions from those who have experience plotting animal movement data.
>
> Thanks very much for any help. Best wishes,
>
> Mike Seear
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-- 
Emma Hain — Product Manager/Senior GIS Analyst
e...@north-road.com / 0414 512 782
[image: https://north-road.com]
*North Road*
Cartography • Development • Spatial Analysis
--
*north-road.com* 



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Re: [Qgis-user] (no subject)

[Jésahel Benoist via QGIS-User]

Take a look at lidR : https://github.com/r-lidar/lidR
We've used it to count and delineate trees on a french city. Great package
with great documentation !
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Re: [Qgis-user] (no subject)

[Micha Silver via QGIS-User]

  
  
Hello
  Loke:
We are
  working on a project in Date orchards. We also tried to create
  a point layer of tree crowns using drone acquired LIDAR. We
  created a Canopy Height Model, then used a local maxima
  procedure to identify crowns. It was a bit
  disappointing.  It seems that dates,
  especially, have local peaks not at the tree center: Some of
  the central fronds extend outward from the tree center and
  they are the highest points. So we got more than one "crown"
  for each tree, and not really at the tree center. 

A better
  approach was to delineate the circumferences of each tree as
  polygons, from the CHM, and a minimum height above ground.
  Then we took the centroid of each polygon. That worked more or
  less OK on young orchards. But with older orchards, having a
  wide spread of fronds, and the canopy of one tree touching the
  next, this method also failed.
So, not
  really a helpful suggestion, only possible pitfalls to look
  out for...


Best,
Micha

   

On 21/06/2023 11:10, Loke Jian Munn via
  QGIS-User wrote:


  
  
  
  
  
Resend to include the attachment.
 
Thank you.
 

  Loke
Jian Munn
  Information
  Technology (IT) Department
  
  KUALA
LUMPUR KEPONG BERHAD
  Wisma
  Taiko,
  No.
  1, Jalan S.P. Seenivasagam,
  3
  Ipoh,Perak Darul Ridzuan,Malaysia
  T   
: 
  +605
  240 8000 (ext. 2443)
  

 

  
From: Loke Jian Munn

Sent: Wednesday, 21 June, 2023 4:09 PM
To: kirk ;
qgis-user@lists.osgeo.org; Richard McDonnell

Subject: RE: 
  

 
Hi, 
 
As mention previously, I need NIR band to
  perform the NDVI, however my drone sensor does not record NIR
  band.
 
So, I trying another way which is crop
  counting from orthophoto with Python and Scikit Image. The
  whole process is geospatial as it works with raster and
  shapefiles and results are finally displayed on QGIS.
 
But the results I get are like below:
 

  
 
After Zoom in: 

  
 
May I know what’s goes wrong ? I have
  attached the Python code above for references. For this
  project, I using an Orthomosaic layer with resolution of 5cm.
 
Appreciate if you can provide me some
  guidelines or insights in this as this is my first time
  touching python and scikit.
 
Thank you.
 
Regards,

  Loke
Jian Munn
  Information
  Technology (IT) Department
  
  KUALA
LUMPUR KEPONG BERHAD
  Wisma
  Taiko,
  No.
  1, Jalan S.P. Seenivasagam,
  3
  Ipoh,Perak Darul Ridzuan,Malaysia
  T   
: 
  +605
  240 8000 (ext. 2443)
  

 

  
From: kirk 

Sent: Tuesday, 6 June, 2023 6:09 PM
To: Loke Jian Munn ;
qgis-user@lists.osgeo.org
Subject: 
  

 

  
Hi Loke
  
  
 
  
  
Richard suggested using a NDVI approach
  which would require data in the Near Infrared (NIR) band. 
  An orthomisaic would contain 3 colour bands, but not the
  NIR.  NDVI provides an understanding of plant greenness
  and health and may not be suitable for detecting oil
  palm's.  
  
  
 
  
  
If you are getting 90 percent plus with
  your current approach , you may find that you will spend 4
  times longer capturing the additional 10 percent.  
  
  
 
  
  
NIR data,are available from various
  satellite sensors however, their resolution would not work
  at the individual plant level.
  
  
 
  
  
Some drone sensors record the NIR band.
  
  
 
  
  
Kirk Schmidt
  

  

Re: [Qgis-user] (no subject)

[Phil Wyatt via QGIS-User]

Hi there,

I am using 3.22.13 and it shows the values that match as I start typing in
values.

Cheers - Phil

-Original Message-
From: QGIS-User  On Behalf Of Guilherme
Pereira via QGIS-User
Sent: Friday, 23 December 2022 5:58 AM
To: qgis-user@lists.osgeo.org
Cc: Marcia Coelho 
Subject: [Qgis-user] (no subject)

GOOD AFTERNOON,

QGIS DESKTOP USERS, ANYONE WHO CAN HELP ME.

I WAS USING QGIS VERSION 3.10, AND WHEN I USED THE "SELECT FEATURES BY
VALUE" OPTION (SHORTCUT F3), AND WHEN I STARTED TYPING WHAT I NEEDED, THE
SOFTWARE SHOWED THE EXISTING OPTIONS IN THE DATABASE.

BUT NOW I AM USING VERSION 3.22, AND WHEN USING "SELECT FEATURES BY VALUE"
(SHORTCUT F3), THE SOFTWARE DOES NOT SHOW FEATURES WITH NAMES THAT EXIST IN
THE DATABASE.

DOES ANYONE KNOW HOW TO CONFIGURE THIS "SELECTION SUGGESTION" THAT HAS IN
VERSION 3.10?



BOA TARDE,

USUÁRIOS DO QGIS DESKTOP, ALGUÉM QUE POSSA ME AJUDAR.

EU UTILIZAVA A VERSÃO DO QGIS VERSÃO 3.10, E QUANDO EU USAVA A OPÇÃO
"SELECIONAR FEIÇÕES POR VALOR" (ATALHO F3), E AO COMEÇAR DIGITAR  O QUE EU
PRECISAVA, O SOFTWARE MOSTRAVA AS OPÇÕES EXISTENTE NO BANCO DE DADOS.

POREM AGORA EU ESTOU UTILIZANDO A VERSÃO 3.22, E AO USAR "SELECIONAR FEIÇÕES
POR VALOR" (ATALHO F3), O SOFTWARE NÃO MOSTRA AS FEIÇÕES  COM NOMES
EXISTENTE NO BANCO DE DADOS.

ALGUÉM SABE COMO CONFIGURAR ESSA"SUGESTÃO DE SELEÇÃO" QUE TEM NA VERSÃO
3.10?







Antes de imprimir pense em sua responsabilidade e compromisso com o Meio
Ambiente !
As informações contidas neste e-mail, incluindo arquivos anexos, são
confidenciais e dirigidas exclusivamente ao destinatário, podendo estar
legalmente protegidas. Se esta mensagem não for destinada a você, por favor
apague-a e informe imediatamente ao remetente. As opiniões pessoais do
remetente não são, necessariamente, coincidentes com o posicionamento da
empresa, não sendo a Sanasa Campinas responsável pelo conteúdo da mensagem.
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Re: [Qgis-user] (no subject)

[Andrea Giudiceandrea via Qgis-user]

*Marco Gómez*
/Sat Jul 23 08:10:06 PDT 2022/

Anular


Hi Marco,
if you want to unsubscribe from this mailing list, you need to do it by 
yourself.


Please follow the link at the bottom of each message: More information 
about the Qgis-user mailing list 
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Then insert your e-mail address in the field "To unsubscribe from 
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Best regards.

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Re: [Qgis-user] (no subject)

[chris hermansen via Qgis-user]

Takunda Chitambura and list,

On Sat, Jul 16, 2022, 07:16 takunda chitambure via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Im trying to combine my csv file with my shapefile but the resultant
> attribute table is showing the joint attributes with null values what could
> be the problem
> __
>

Probably when you imported your . CSV you did not define the types of the
columns, especially the join column, so that the column in the .SHP is say
integer and the matching column is string.

If that's the case, you can either reimport your .CSV taking care to define
the types of the columns or you can add a new column of the appropriate
type (e.g. integer) and use the field calculator to convert the join column
into it, then redo the join on the new column.

Chris

>
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Re: [Qgis-user] (no subject)

[Patrick Dunford via Qgis-user]

If they were running a regular linux distro there could possibly be 
builds if the distro provided the software in their own repository.


However, I half expect it's possibly a chromebook that software installs 
won't be possible on.


On 17/03/22 10:23, Diego García del Río wrote:
indeed.. not even sure if its windows or chromeos or plain linux... 
but not sure if there is anything native for arm



*Diego Garcia del Rio*| CTO | Mediatel S.A. | Tel: +54 11 5218 0463 
(x103) | Cel: +54 9 11 4530-4697 | www.mediatel.com.ar 
 | Juan Carlos Cruz 2360 – 4B (1636), 
Vicente López, Buenos Aires, Argentina |

https://goo.gl/maps/NZCFPwVkFFf14cR67


On Wed, 16 Mar 2022 at 16:45, Patrick Dunford via Qgis-user 
 wrote:


Are packages produced for ARM platforms?

On 17/03/22 05:22, Dave Stevens via Qgis-user wrote:
> On Tue, 15 Mar 2022 16:33:40 -0400
> rayfson souza via Qgis-user  wrote:
>
>> *OLÁ, SAUDAÇÕES, NÃO CONSIGO INSTALAR AS NOVAS VERSÕES DO QGIS 3.22
>> NO MEU NOVO COMPUTADOR, GOSTARIA MUITO DE ME AJUDAR POR FAVOR.*
> *HELLO, GREETINGS, I CANNOT INSTALL THE NEW VERSIONS OF QGIS
3.22 ON MY
> NEW COMPUTER, WOULD LIKE TO HELP ME PLEASE.*
>
> I don't know if there is a qgis-ES list but if so you might get
better
> responses. or Google translate which is what I used.
>
>   Sometimes I wonder
> whether the world is being run by smart people who are putting
us on or
> by imbeciles who really believe it.
>
> Mark Twain
> ___
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Re: [Qgis-user] (no subject)

[Diego García del Río via Qgis-user]

Rayfson.

se voce pode escriber en ingles sera muito mais facil para tudo o mundo vc
ajudar.

A gente acha que nao tem pacotes compilados em ARM para o seu computador.
VC esta usando windows o linux  o chromeOS em esa maquina?

saludos


*Diego Garcia del Rio* | CTO | Mediatel S.A. | Tel: +54 11 5218 0463 (x103)
| Cel: +54 9 11 4530-4697 | www.mediatel.com.ar | Juan Carlos Cruz 2360 –
4B (1636), Vicente López, Buenos Aires, Argentina |
https://goo.gl/maps/NZCFPwVkFFf14cR67


On Wed, 16 Mar 2022 at 16:45, Patrick Dunford via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Are packages produced for ARM platforms?
>
> On 17/03/22 05:22, Dave Stevens via Qgis-user wrote:
> > On Tue, 15 Mar 2022 16:33:40 -0400
> > rayfson souza via Qgis-user  wrote:
> >
> >> *OLÁ, SAUDAÇÕES, NÃO CONSIGO INSTALAR AS NOVAS VERSÕES DO QGIS 3.22
> >> NO MEU NOVO COMPUTADOR, GOSTARIA MUITO DE ME AJUDAR POR FAVOR.*
> > *HELLO, GREETINGS, I CANNOT INSTALL THE NEW VERSIONS OF QGIS 3.22 ON MY
> > NEW COMPUTER, WOULD LIKE TO HELP ME PLEASE.*
> >
> > I don't know if there is a qgis-ES list but if so you might get better
> > responses. or Google translate which is what I used.
> >
> >   Sometimes I wonder
> > whether the world is being run by smart people who are putting us on or
> > by imbeciles who really believe it.
> >
> > Mark Twain
> > ___
> > 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] (no subject)

[Patrick Dunford via Qgis-user]

Are packages produced for ARM platforms?

On 17/03/22 05:22, Dave Stevens via Qgis-user wrote:

On Tue, 15 Mar 2022 16:33:40 -0400
rayfson souza via Qgis-user  wrote:


*OLÁ, SAUDAÇÕES, NÃO CONSIGO INSTALAR AS NOVAS VERSÕES DO QGIS 3.22
NO MEU NOVO COMPUTADOR, GOSTARIA MUITO DE ME AJUDAR POR FAVOR.*

*HELLO, GREETINGS, I CANNOT INSTALL THE NEW VERSIONS OF QGIS 3.22 ON MY
NEW COMPUTER, WOULD LIKE TO HELP ME PLEASE.*

I don't know if there is a qgis-ES list but if so you might get better
responses. or Google translate which is what I used.

  Sometimes I wonder
whether the world is being run by smart people who are putting us on or
by imbeciles who really believe it.

Mark Twain
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Re: [Qgis-user] (no subject)

[Dave Stevens via Qgis-user]

On Tue, 15 Mar 2022 16:33:40 -0400
rayfson souza via Qgis-user  wrote:

> *OLÁ, SAUDAÇÕES, NÃO CONSIGO INSTALAR AS NOVAS VERSÕES DO QGIS 3.22
> NO MEU NOVO COMPUTADOR, GOSTARIA MUITO DE ME AJUDAR POR FAVOR.*

*HELLO, GREETINGS, I CANNOT INSTALL THE NEW VERSIONS OF QGIS 3.22 ON MY
NEW COMPUTER, WOULD LIKE TO HELP ME PLEASE.* 

I don't know if there is a qgis-ES list but if so you might get better
responses. or Google translate which is what I used.

 Sometimes I wonder
whether the world is being run by smart people who are putting us on or
by imbeciles who really believe it.

Mark Twain
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Re: [Qgis-user] (no subject)

[chris hermansen via Qgis-user]

Rayfson and list

On Tue, Mar 15, 2022, 13:32 rayfson souza via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> *OLÁ, SAUDAÇÕES, NÃO CONSIGO INSTALAR AS NOVAS VERSÕES DO QGIS 3.22 NO MEU
> NOVO COMPUTADOR, GOSTARIA MUITO DE ME AJUDAR POR FAVOR.*
>
>
>

Qual sistema operacional? È um Chromebook?


*my pc*
>
> *Processador: Snapdragon (TM) 7c Gen 2 @.55 GHz 2.55 GHz*
>
> *Ram: 4GB*
>
> *Sistema operacional 64 bits, processador baseado em ARM*
>
>
>
> MEU NAME RAYFSON SOUZA DE OLIVEIRA
>
> 5595991166136
>
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Re: [Qgis-user] (no subject)

[Nicolas Cadieux]

Hi,

You may need to expand a bit on what you mean by “react map”. 

Nicolas Cadieux
https://gitlab.com/njacadieux

> Le 15 janv. 2022 à 13:23, takunda chitambure  a 
> écrit :
> 
> 
> I would like to ask how I can create a react map using qgis
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Re: [Qgis-user] (no subject)

[Zoltán Siki]

Dear Viktoria,

I think the problem is with the network connection or the URL.
Do you want to connect a public server?
Can you access the net?
What if you type in the browser the URL of the WMS server plus
"?service=wms=GetCapabilities"?
You should get an XML. Until you don't get this XML QGIS won't work.

Regards,
Zoltan

takacsviki  ezt írta (időpont: 2021. aug. 27., P, 12:39):

> Hi all!
>
> Please help me!! I installed QGIS 3.16. When trying to add a VMS layer, it
> returns me the following message:
>
> Nie powiodło się pobranie Capabilities:Pobieranie "capabilities" nie
> powiodło się: Dostęp do sieci wyłączony. =
> download CApabilities was unsuccessful, the network access is switched
> off.
>
> Should I configure somewhere network connection? What to do and how?
> Previously I have used several versions of QGIS but never had similar
> problems.
>
> Thanks for the help!
>
> Viktoria
>
>
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Re: [Qgis-user] (no subject) (elevation question)

[Greg Troxel]

To the OP: agreement within 11m for a pseudorange solution is entirely
ok.  I don't call that an error; I call it matching.   As an experiment,
find a physical point you can reoccupy, and on 10 days not all at the
same time of day go take a measurement and then tell us the statistics
of the data set.

Nicolas Cadieux  writes:

> Interesting but I very much doubt they are not applying a geoid on top
> of the ellipsoid. If they can put maps of the earth on the device,
> they can put a geoid with a posting of 15´x15´!

You would think, but it seems that the geoid model in some receivers is
very coarse.

I've found that with a u-blox F9P (and I think 8 series), the internal
model gives me a value that's about 4m off from EGM2008.  And it's not
an EGM96/2008 thing -- there is some variance (around me) between those,
but far smaller.

So it seemed like the geoid model was nowhere near 15', more like 2
degrees, but I haven't been the least bit rigorous in checking it.

Still, all of this is maybe 4m, which if you aren't doing RTK is really
hard to discern.


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Re: [Qgis-user] (no subject) (elevation question)

[Nicolas Cadieux]

Hi, 

Thanks for the precision.  So they are basically prone to the same problem 
(which is reassuring).  My guess is that the true befits is that they add a 
compass with the barometer so you can take a heading reading when not moving... 
I guess that is worth 100 bucks!  

Guess we’re moving away for the topic here... shitty ADHD! :)

Nicolas Cadieux
https://gitlab.com/njacadieux

> Le 21 avr. 2021 à 08:26, kirk  a écrit :
> 
> 
> Hi Nicolas.
> 
> You can set the barometer my using a known point and elevation or by setting 
> the current atmospheric pressure. As with an anologue altimeter, your 
> readings will change throughout the day as the pressure changes. This is less 
> of a problem if you are out on a sunny day with a high pressure cell with a 
> small pressure gradient. but becomes bit more problematic if a low pressure 
> system is moving in.
> 
> 
> Sent from my Galaxy
> 
> 
>  Original message 
> From: Nicolas Cadieux 
> Date: 2021-04-21 9:14 a.m. (GMT-04:00)
> To: David Strip 
> Cc: Qgis Users List 
> Subject: Re: [Qgis-user] (no subject) (elevation question)
> 
> Hi,
> 
> Interesting but I very much doubt they are not applying a geoid  on top of 
> the ellipsoid. If they can put maps of the earth on the device, they can put 
> a geoid with a posting of 15´x15´! 
> 
>  I have been wondering about those barometric altimeters GPS for back 
> packing.  I have a none electronic altimeter with me normally but it only 
> really good if you consider the temperature changes.  
> 
> Nicolas Cadieux
> https://gitlab.com/njacadieux
> 
>>> Le 20 avr. 2021 à 23:03, David Strip  a écrit :
>>> 
>> 
>> In the course of trying to find what geoid model Garmin uses, I found this 
>> on a Garmin support page:
>> . It is not uncommon for satellite heights to be off from map elevations by 
>> +/- 400 ft. Use these values with caution when navigating.
>> Apparently some, but not all, models of the Garmin64 have a barometric 
>> altimeter. Depending on your actual model, this may or may not apply.
>> 
>> 
>>> On 4/20/2021 8:23 PM, Nicolas Cadieux wrote:
>>> Hi,
>>> 
>>> David gave you a very good answer. Your looking at a 11 meter difference.  
>>> That is not much.  The first thing would be to look at the gps measurement. 
>>>  (Any trees? Good satellite constellation?  Any obstacles?). At best, your 
>>> looking at a 6 to 10 meter error  vertically. SRTMs are affected by trees.  
>>> That would make the SRTM higher (not your case).  Last thing to look at the 
>>> the differences between the gps geiod model (a model of the average sea 
>>> level).  SRTM use EGM96.  Your GPS probably uses something a bit more 
>>> modern. You can easily get a 5 meter error between two Geiods.
>> 
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Re: [Qgis-user] (no subject) (elevation question)

[kirk]

Hi Nicolas.You can set the barometer my using a known point and elevation or by 
setting the current atmospheric pressure. As with an anologue altimeter, your 
readings will change throughout the day as the pressure changes. This is less 
of a problem if you are out on a sunny day with a high pressure cell with a 
small pressure gradient. but becomes bit more problematic if a low pressure 
system is moving in.Sent from my Galaxy
 Original message From: Nicolas Cadieux 
 Date: 2021-04-21  9:14 a.m.  (GMT-04:00) To: 
David Strip  Cc: Qgis Users List 
 Subject: Re: [Qgis-user] (no subject) (elevation 
question) Hi,Interesting but I very much doubt they are not applying a geoid  
on top of the ellipsoid. If they can put maps of the earth on the device, they 
can put a geoid with a posting of 15´x15´!  I have been wondering about those 
barometric altimeters GPS for back packing.  I have a none electronic altimeter 
with me normally but it only really good if you consider the temperature 
changes.  Nicolas Cadieuxhttps://gitlab.com/njacadieuxLe 20 avr. 2021 à 23:03, 
David Strip  a écrit :
  

  
  
In the course of trying to find what
  geoid model Garmin uses, I found this on a
Garmin support page:
  . It is not uncommon for satellite heights to be off
from map elevations by +/- 400 ft. Use these values with caution
when navigating.
  
  Apparently some, but not all, models of the Garmin64 have a
  barometric altimeter. Depending on your actual model, this may or
  may not apply.
  
  
  On 4/20/2021 8:23 PM, Nicolas Cadieux wrote:


  Hi,
  
  
  David gave you a very good answer. Your looking at a 11 meter
  difference.  That is not much.  The first thing would be to look
  at the gps measurement.  (Any trees? Good satellite constellation?
   Any obstacles?). At best, your looking at a 6 to 10 meter error
   vertically. SRTMs are affected by trees.  That would make the
  SRTM higher (not your case).  Last thing to look at the the
  differences between the gps geiod model (a model of the average
  sea level).  SRTM use EGM96.  Your GPS probably uses something a
  bit more modern. You can easily get a 5 meter error between two
  Geiods.

  

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Re: [Qgis-user] (no subject) (elevation question)

[Nicolas Cadieux]

Hi,

Interesting but I very much doubt they are not applying a geoid  on top of the 
ellipsoid. If they can put maps of the earth on the device, they can put a 
geoid with a posting of 15´x15´! 

 I have been wondering about those barometric altimeters GPS for back packing.  
I have a none electronic altimeter with me normally but it only really good if 
you consider the temperature changes.  

Nicolas Cadieux
https://gitlab.com/njacadieux

> Le 20 avr. 2021 à 23:03, David Strip  a écrit :
> 
> 
> In the course of trying to find what geoid model Garmin uses, I found this on 
> a Garmin support page:
> . It is not uncommon for satellite heights to be off from map elevations by 
> +/- 400 ft. Use these values with caution when navigating.
> Apparently some, but not all, models of the Garmin64 have a barometric 
> altimeter. Depending on your actual model, this may or may not apply.
> 
> 
>> On 4/20/2021 8:23 PM, Nicolas Cadieux wrote:
>> Hi,
>> 
>> David gave you a very good answer. Your looking at a 11 meter difference.  
>> That is not much.  The first thing would be to look at the gps measurement.  
>> (Any trees? Good satellite constellation?  Any obstacles?). At best, your 
>> looking at a 6 to 10 meter error  vertically. SRTMs are affected by trees.  
>> That would make the SRTM higher (not your case).  Last thing to look at the 
>> the differences between the gps geiod model (a model of the average sea 
>> level).  SRTM use EGM96.  Your GPS probably uses something a bit more 
>> modern. You can easily get a 5 meter error between two Geiods.
> 
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Re: [Qgis-user] (no subject)

[Kirk Schmidt]

Hi jean:

Another issue is that you can set your elevation reference point in most 
Garmin units to either use the height above the ellipsoid or and 
approximation mean sea level.  This setting will also have an impact on 
your observed elevation.


Kirk Schmidt


On 4/20/2021 8:45 PM, jean Lukusa wrote:

Hi all .
I hope you are doing fine.
I have experienced an issue:
The elevation taken in the field with gps garmin64 is 623 m but the 
one given by SRTM download from Qgis is 612m.

How can I interprete this gap knowing that SRTM resolution is 30 meters.

Jean Lukusa
B.Sc. Geology
Trained on Jorc  Code
GIS  Operator
+243812156128

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RR # 1
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B0K 1W0
Tel (902) 922.3607
Email: k...@nortekresources.com
Web: www.nortekresources.com

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Re: [Qgis-user] (no subject) (elevation question)

[David Strip]

  
  
In the course of trying to find what
  geoid model Garmin uses, I found this on a
Garmin support page:
  . It is not uncommon for satellite heights to be off
from map elevations by +/- 400 ft. Use these values with caution
when navigating.
  
  Apparently some, but not all, models of the Garmin64 have a
  barometric altimeter. Depending on your actual model, this may or
  may not apply.
  
  
  On 4/20/2021 8:23 PM, Nicolas Cadieux wrote:


  Hi,
  
  
  David gave you a very good answer. Your looking at a 11 meter
  difference.  That is not much.  The first thing would be to look
  at the gps measurement.  (Any trees? Good satellite constellation?
   Any obstacles?). At best, your looking at a 6 to 10 meter error
   vertically. SRTMs are affected by trees.  That would make the
  SRTM higher (not your case).  Last thing to look at the the
  differences between the gps geiod model (a model of the average
  sea level).  SRTM use EGM96.  Your GPS probably uses something a
  bit more modern. You can easily get a 5 meter error between two
  Geiods.

  

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Re: [Qgis-user] (no subject) (elevation question)

[Nicolas Cadieux]

Hi,

David gave you a very good answer. Your looking at a 11 meter difference.  That 
is not much.  The first thing would be to look at the gps measurement.  (Any 
trees? Good satellite constellation?  Any obstacles?). At best, your looking at 
a 6 to 10 meter error  vertically. SRTMs are affected by trees.  That would 
make the SRTM higher (not your case).  Last thing to look at the the 
differences between the gps geiod model (a model of the average sea level).  
SRTM use EGM96.  Your GPS probably uses something a bit more modern. You can 
easily get a 5 meter error between two Geiods.

Nicolas Cadieux
https://gitlab.com/njacadieux

> Le 20 avr. 2021 à 21:32, David Strip  a écrit :
> 
>  The 30m resolution of SRTM data refers to the spatial resolution, not the 
> resolution of the elevation reading. A number of factors come into play when 
> determining the vertical accuracy of SRTM data, but according to this link, 
> the RMS error for SRTM vertical measurements is 3.56M. Because of the 
> configuration of the satellites used to calculate elevation with a GPS, the 
> vertical resolution is significantly worse than the horizontal resolution. 
> Further complicating matters, many Garmin units contain a barometric 
> altimeter which is preferred over the GPS reading by the software. However, 
> unless you calibrated the sensor at a known elevation before starting your 
> readings, you have no idea how accurate it is. 
> TL:DR - the SRTM value is probably better than your GPS reading.
> 
>> On 4/20/2021 5:45 PM, jean Lukusa wrote:
>> Hi all .
>> I hope you are doing fine.
>> I have experienced an issue:
>> The elevation taken in the field with gps garmin64 is 623 m but the one 
>> given by SRTM download from Qgis is 612m.
>> How can I interprete this gap knowing that SRTM resolution is 30 meters.
>> 
>> Jean Lukusa
> 
> 
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Re: [Qgis-user] (no subject) (elevation question)

[David Strip]

  
  
The 30m resolution of SRTM data refers to the spatial resolution,
not the resolution of the elevation reading. A number of factors
come into play when determining the vertical accuracy of SRTM data,
but according to this link,
the RMS error for SRTM vertical measurements is 3.56M. Because of
the configuration of the satellites used to calculate elevation with
a GPS, the vertical resolution is significantly worse than the
horizontal resolution. Further complicating matters, many Garmin
units contain a barometric altimeter which is preferred over the GPS
reading by the software. However, unless you calibrated the sensor
at a known elevation before starting your readings, you have no idea
how accurate it is. 
TL:DR - the SRTM value is probably better than your GPS reading.

On 4/20/2021 5:45 PM, jean Lukusa wrote:

  
  Hi all .
I hope you are doing fine.
I have experienced an issue:
The elevation taken in the field with gps
  garmin64 is 623 m but the one given by SRTM download from Qgis
  is 612m.
How can I interprete this gap knowing that SRTM
  resolution is 30 meters.
  
  Jean Lukusa

  



  

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Re: [Qgis-user] (no subject)

[Wouter Impens]

Hi Maria,

I recently started as a Linux newbie on Ubuntu 20.04 and I managed to 
install QGIS following the steps on 
https://www.qgis.org/nl/site/forusers/alldownloads.html#debian-ubuntu



Kind regards

Wouter


Op 18-06-2020 om 14:25 schreef Maria Fernanda Obando Picado:

Hi! Thanks for incluiding me.

I changed from Ubuntu 18.04 to Ubuntu 20.04, so I automaticly lost the 
qgis software. When I tryed to install it again, many troubles came 
out, like "qgis needs 'this' or 'this' but its not going to be 
install" or 'its going to install 'this' in stand of 'this'; "E: the 
package its not found" and also "you have broken packages". I tryed to 
erase old packages, tryed to clean caché, tryed commands like 
"autoremove", "autoclean", "sudo apt-get -f install' and i followed 
all the suggested steps from the qgis original tutorial but nothing 
worked!


Its there any other suggestions about how to install qgis? this 
vertion is actually working?  I even tryed to install qgis copying 
from the terminal to the repository both latest versions 
(https//:qgis.org/ubuntu  and 
https//:qgis.org/ubuntu-ltr )


Please, anything will help, i'm in the middle of my final work to get 
a master degree and i already lost 2 days trying to fix this. My plan 
B is just, get back to Ubuntu 18, but its possible that that doesnt 
work easily anyway.


Thanks for your atention!

Regards.

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Re: [Qgis-user] (no subject)

[Philip Barlow]

Hi

As a quick fix have you considered using the flatpak version? It is self 
contained so has all of its dependencies bundled with it.

https://flatpak.org/setup/Ubuntu/

Its well maintained I think, and its the LTR version.

Phil



From: Qgis-user [qgis-user-boun...@lists.osgeo.org] on behalf of Maria Fernanda 
Obando Picado [mari...@gmail.com]
Sent: 18 June 2020 13:25
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] (no subject)

Hi! Thanks for incluiding me.

I changed from Ubuntu 18.04 to Ubuntu 20.04, so I automaticly lost the qgis 
software. When I tryed to install it again, many troubles came out, like "qgis 
needs 'this' or 'this' but its not going to be install" or 'its going to 
install 'this' in stand of 'this'; "E: the package its not found" and also "you 
have broken packages". I tryed to erase old packages, tryed to clean caché, 
tryed commands like "autoremove", "autoclean", "sudo apt-get -f install' and i 
followed all the suggested steps from the qgis original tutorial but nothing 
worked!

Its there any other suggestions about how to install qgis? this vertion is 
actually working?  I even tryed to install qgis copying from the terminal to 
the repository both latest versions 
(https//:qgis.org/ubuntu and 
https//:qgis.org/ubuntu-ltr)

Please, anything will help, i'm in the middle of my final work to get a master 
degree and i already lost 2 days trying to fix this. My plan B is just, get 
back to Ubuntu 18, but its possible that that doesnt work easily anyway.

Thanks for your atention!

Regards.

Mae'r Awdurdod yn hapus i gyfathrebu yn Gymraeg neu yn Saesneg

The Authority is happy to communicate in Welsh or English


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Re: [Qgis-user] (no subject)

[qgis-user]

  
  
On 5/5/2020 4:30 PM, Antonio Corbo
  wrote:

Salve,
  ho un problema e non so come risolverlo, Spero che possiate
aiutarmi.
  Qual sono i passaggi per fare delle channels network and
drainage basins from SAGA?
  Io so che è necessario un DEM(che ho) da cui si ricava un TPI
e un DWI che uniti danno cost surface. Ma purtroppo non conosco
bene i passaggi per ottenere tutto questo. Potete aiutarmi? 
  Grazie in anticipo

Translation:
Hello,
i have a problem and i don't know how to solve it, i hope you can help me.
What are the steps to make channels network and drainage basins from SAGA?
I know that a DEM is needed (which I have) from which a TPI and a DWI are obtained which together give cost surface. But unfortunately I don't know the steps to get all this well. Can you help me?
Thanks in advance


  

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Re: [Qgis-user] (no subject)

[Alexandre Neto]

Olá Tiago,

You can do what you want by using select by expression and then use the
count aggregate function:

https://docs.qgis.org/3.10/en/docs/user_manual/working_with_vector/expression.html?highlight=expression#aggregates-functions


Anything where count > 1 should be a duplicate


Count("my_field", group_by:="my_field") > 1


Alexandre Neto

QGIS Support

www.qcooperative.net


A segunda, 13/04/2020, 03:27,  escreveu:

> Hi guys, I would like to know how do I select the registers with the same
> value repeated in the same field (text or numbers) in a table of atributts,
> and only those registers. I Know that is posible using select by atributtes
> but i need especify those atributes, is not the case. I want to select
> everyone with one or more duplicates value in the same field without
> necessary to know which are repeated.
>
>
>
> Sorry for the bad english, as QGIS i’m still learning.
>
>
>
> Best Regards,
>
>
>
> Tiago (from Brazil)
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Re: [Qgis-user] (no subject)

[Nicolas Cadieux]

Bonjour,

Do you have access to the layer panel?  You tried to right click on a layer and 
you don’t see the properties window?

Nicolas Cadieux
Ça va bien aller!

> Le 4 avr. 2020 à 11:56, David Bouchard  a écrit :
> 
> 
> Hi,
>  
> I am using qgis 3.12 and i am no longer able to access the properties of my 
> layers. Is there anybody who had this problem?
> I tried uninstalling everything, but it did not work, im kind of blocked 
> right now.
>  
> Any help would be appreciated,
>  
> Have nice day,
>  
> David
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Re: [Qgis-user] (no subject) (LIDAR vs SRTM accuracy comparisons)

[Kirk Schmidt]

You sure can, you can create a difference grid using the Saga tools.  
You also can use profile tools for liner features to compare route 
elevations.  One would expect the Lidar to win if it was processed with 
kinematic GPS.


On 3/24/2020 12:05 PM, qgis-u...@stripfamily.net wrote:

On 3/24/2020 6:20 AM, Noor Ainekar wrote:


I am currently doing my dissertation for University. And wanted to 
know if i can use QGIS to compare LiDAR data and SRTM data for a 
specific location for an accuracy assessment.


QGIS has a range of tools for comparing two rasters. Once you have 
converted your LIDAR data to a raster file, you will be able to 
compare the LIDAR and SRTM values.


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--
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General Manager
Nortek Resource Solutions Inc.
RR # 1
Thorburn, NS
B0K 1W0
Tel (902) 922.3607
Email: k...@nortekresources.com
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Re: [Qgis-user] (no subject) (LIDAR vs SRTM accuracy comparisons)

[qgis-user]

  
  
On 3/24/2020 6:20 AM, Noor Ainekar
  wrote:


  

  
  
I am currently doing my dissertation for University. And wanted
to know if i can use QGIS to compare LiDAR data and SRTM data
for a specific location for an accuracy assessment. 
  
  


QGIS has a range of tools for comparing two rasters. Once you have
converted your LIDAR data to a raster file, you will be able to
compare the LIDAR and SRTM values. 
  

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Re: [Qgis-user] (no subject)

[Matthias Kuhn]

Hi Norman,

Can you try to create a new user profile?

QGIS 3.8 is end of life, better upgrade to QGIS 3.10

Best regards

Matthias

On 2/14/20 6:41 PM, Norman Trowell wrote:
I have qgis 3.8 installed. I can't see status ball and don't see 
maimize button in upper left corner

*Norm Trowell*
*25 Lancaster Drive*
*Sudbury, Ontario*
*P3E 3R5*
**
*Phone:705-670-8281*
*Email:trowel...@gmail.com *
**
**
*

*
*
*
*
*
*
*

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Re: [Qgis-user] (no subject)

[Raymond Nijssen]

Hi Carolina,

The tiff file does not contain the style but only the data. Both 
applications will somehow guess what would be a nice visualization of 
this, and they take different guesses.


The good news is that you can change the layer style in both 
applications. In QGIS you can set it to "singleband gray" to get what 
ArcMap made for you.


If you want ArcMap to show your layer in the QGIS style you need to 
change the symbology too, but I don't know what that is called. Probably 
something called "unique values" or "discrete". Otherwise ask some 
ArcPeople on an ArcForum. ;)


Good luck,
Raymond


On 27-10-19 21:07, Carolina Rey wrote:

Hello everyone!

I tried to open in ArcMap a tif created in QGIS. The classes in QGIS are 
3, with 3 colours. In ArcMap it is opened not „discret“ but „continual“ 
although of course it should be the same. How could I visualize it like 
in QGIS?


See ScreenShot below

Thanks!

Kind regards

Carolina

QGIS:

ArcMap:


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Re: [Qgis-user] (no subject)

[Paolo Cavallini]

Hi,
you probably have to install additional libraries. Please paste here the text 
of the error message, and check the plugin requirements.
Cheers.

On 26 October 2019 16:08:28 CEST, CAHYO WIDODO  
wrote:
>I want to use qmarxan, but I can't installed. There are announcements
>py2
>install. How about this solution?

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Re: [Qgis-user] (no subject)

[Akbar Ahmady]

can you assist me how i can export my QGIS 2.4.0 version project to web
with this capacity which we can have the layer and attribute table with
together?

best
Ahmadi

On Tue, Aug 20, 2019 at 3:49 PM Phil Wyatt  wrote:

> As QGIS 2.X is no longer supported I would start by updating to at least
> the latest long term release version (3.4.11 for windows) and having
> another try at loading the plugin.
>
>
>
> https://qgis.org/en/site/forusers/download.html
>
>
>
> Version 3 will load to a new directory if you accept all the defaults.
>
>
>
> Cheers - Phil
>
>
>
>
>
> *From:* Akbar Ahmadi [mailto:akbarahmady2...@gmail.com]
> *Sent:* Tuesday, 20 August 2019 4:17 PM
> *To:* Phil Wyatt; qgis-user@lists.osgeo.org
> *Subject:* RE: [Qgis-user] (no subject)
>
>
>
> I use QGIS 2.4.0 version
>
> And error message are in enclosed file
>
>
>
>
>
>
>
> Best Regards,
>
> Akbar Ahmadi
>
> *Akbar Ahmadi*
>
> Email  akbar.ahm...@akdn.org   akbarahmady2...@gmail.com
>
> Skype  akbarahmady2002
>
>
>
> *From: *Phil Wyatt 
> *Sent: *Tuesday, August 20, 2019 10:45 AM
> *To: *'Akbar Ahmadi' ;
> qgis-user@lists.osgeo.org
> *Subject: *RE: [Qgis-user] (no subject)
>
>
>
> What version of QGIS are you using, how are you loading the plugin, and
> what error messages are you receiving?
>
>
>
> Cheers - Phil
>
>
>
> *From:* Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] *On Behalf
> Of *Akbar Ahmadi
> *Sent:* Tuesday, 20 August 2019 4:03 PM
> *To:* qgis-user@lists.osgeo.org
> *Subject:* [Qgis-user] (no subject)
>
>
>
> Dear Sir
>
>
>
> I cannot install Lizmap plugin can you assist me to install it?
>
>
>
>
>
> Best Regards,
>
> Akbar Ahmadi
>
> *Akbar Ahmadi*
>
> Email  akbar.ahm...@akdn.org   akbarahmady2...@gmail.com
>
> Skype  akbarahmady2002
>
>
>
>
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Re: [Qgis-user] (no subject)

[Phil Wyatt]

As QGIS 2.X is no longer supported I would start by updating to at least the 
latest long term release version (3.4.11 for windows) and having another try at 
loading the plugin.

 

https://qgis.org/en/site/forusers/download.html

 

Version 3 will load to a new directory if you accept all the defaults.

 

Cheers - Phil

 

 

From: Akbar Ahmadi [mailto:akbarahmady2...@gmail.com] 
Sent: Tuesday, 20 August 2019 4:17 PM
To: Phil Wyatt; qgis-user@lists.osgeo.org
Subject: RE: [Qgis-user] (no subject)

 

I use QGIS 2.4.0 version 

And error message are in enclosed file

 

 

 

Best Regards,

Akbar Ahmadi

Akbar Ahmadi

Email  akbar.ahm...@akdn.org   akbarahmady2...@gmail.com   

Skype  akbarahmady2002

 

From: Phil Wyatt <mailto:p...@wyatt-family.com> 
Sent: Tuesday, August 20, 2019 10:45 AM
To: 'Akbar Ahmadi' <mailto:akbarahmady2...@gmail.com> ; 
qgis-user@lists.osgeo.org
Subject: RE: [Qgis-user] (no subject)

 

What version of QGIS are you using, how are you loading the plugin, and what 
error messages are you receiving?

 

Cheers - Phil

 

From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Akbar 
Ahmadi
Sent: Tuesday, 20 August 2019 4:03 PM
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] (no subject)

 

Dear Sir

 

I cannot install Lizmap plugin can you assist me to install it?

 

 

Best Regards,

Akbar Ahmadi

Akbar Ahmadi

Email  akbar.ahm...@akdn.org   akbarahmady2...@gmail.com   

Skype  akbarahmady2002

 

 

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Re: [Qgis-user] (no subject)

[Phil Wyatt]

What version of QGIS are you using, how are you loading the plugin, and what 
error messages are you receiving?

 

Cheers - Phil

 

From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Akbar 
Ahmadi
Sent: Tuesday, 20 August 2019 4:03 PM
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] (no subject)

 

Dear Sir

 

I cannot install Lizmap plugin can you assist me to install it?

 

 

Best Regards,

Akbar Ahmadi

Akbar Ahmadi

Email  akbar.ahm...@akdn.org   akbarahmady2...@gmail.com   

Skype  akbarahmady2002

 

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Re: [Qgis-user] (no subject)

[Alton Teague]

oops - forgot to insert that before editing
/etc/apt/sources.list

I had attempted sudo apt remove qgis which surprisingly said it was
updating a bunch of dependencies.  The system did act as if qgis had
actually been removed before I added the new repository.


On Sun, Jul 28, 2019 at 9:45 PM Alton Teague 
wrote:

> New to qgis. I am still running Ubuntu 16.04-LTS because many applications
> break on 18.04-LTS.
>
> Is there any way to git clone the latest version or download a tarball or
> a complete .deb that just simply installs or updates an older version?
>
> First, someone told me to just
> sudo apt-get install qgis
> It turned out to be version 2.18, and I discovered that a few features he
> had working properly did not work properly on my machine. So I started
> googling for how to get the latest version when he told me had version
> 3.something on his Debian machine.
>
> I think I followed the instructions properly on
> https://qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu
>
> I edited
> /etc/apt/sources.list
> and added the lines
>
> #QGIS repository
> deb https://qgis.org/ubuntu xenial main
> deb-src https://qgis.org/ubuntu xenial main
>
> Then I attempted
>
> sudo apt-get update
> sudo apt-get install qgis python3-qgis qgis-plugin-grass
>
> It complained with an error, "unable to find python3-qgis" (or possibly
> "cannot find python3-qgis") and terminated.
>
> So I shortened it to
> sudo apt-get install qgis qgis-plugin-grass
>
> to try and force it to either complain about missing dependencies, or
> actually go fetch them. However, it completed with no complaints.
> qgis desktop and qgis browser showed up in the installed software list,
> and desktop started without complaining about missing dependencies or
> similar issues.
>
> What launched is QGIS 2.18, with a "helpful" banner across the bottom that
> 3.8.1 is available. This of course took me around the circle again, to the
> same instructions that either I'm getting senile and missed something, or
> there's an error or two in the posted instructions.
>
> So - how do I clean out all the vestiges of qgis 2.18 to try again with a
> clean slate, where it won't just merrily go get 2.18 again from the wrong
> depository? Is there some workaround to gain positive control over which
> version is fetched, e.g. a place to download a complete .deb archive that
> it can be installed from, or a git clone or some other method?
>
> Thanks. I've spent about 4 hours trying to get the later version on this
> machine with no success and finally gave up. So I figured I'd better ask
> the experts what implied step(s) were missed in doing the update.
>
>
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Re: [Qgis-user] (no subject)

[Kirk Schmidt]

Hi Tulika:

You will need a minimum of 3 GCP's for the algorithm to work. With out 
more detail, it is difficult to determine what the issue is.  Please 
provide more detail and I am sure we can find a solution for you.


Kirk


On 4/28/2019 2:35 PM, Tulika Biswas wrote:
I have an issue with using the georeferencer.My problem is after 
adding co ordinates to the map and giving the transformation 
settings.. I am running the georeferencing option.. Then it is being 
displayed on the screen as
"Failed to compute GCP points." and the map is also not being shown in 
the qgis interface..

Plz  help.. Its very urgent..

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Re: [Qgis-user] (no subject)

[Nicolas Cadieux]

Hi,
Make sure your base map and the image to be georeferenced are in the same 
coordinates system.  
Nicolas

> Le 28 avr. 2019 à 13:35, Tulika Biswas  a écrit :
> 
> I have an issue with using the georeferencer.My problem is after adding co 
> ordinates to the map and giving the transformation settings.. I am running 
> the georeferencing option.. Then it is being displayed on the screen as
> "Failed to compute GCP points." and the map is also not being shown in the 
> qgis interface..
> Plz  help.. Its very urgent.. 
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Re: [Qgis-user] (no subject)

[Jorge Gustavo Rocha]

Hi Helder,

Which style format do you need? Is it a specific Leaflet style format?

Do you use any map server (QGIS Server, Mpaserver, Geoserver, ...) to
provide tiles for your Leaflet client or do you display the shapefile
directly on the client?

Regards,

Jorge Gustavo

Às 22:37 de 19/04/19, Helder Ventura escreveu:
> Good day,
> I would like to know what is the best option to export shape styles
> (and only the styles!) from QGis into GeoJSON or export the styles to
> postgreSQL Database. All this is to be able to load the styles into
> leaflet. I can export the styles into postgresql, and load them in
> QGis, but I can't load them into leaflet.
> I would like some help please.
> Thanks in advance.
> Cumpliments 
>
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Re: [Qgis-user] (no subject)

[Didier Peeters]

Hi Dickson, 

Since QGIS 3.x there is an import/export functionality in the Project menu, 
with a specific option for DWG/DXF files.  

Didier

> Le 26 janv. 2019 à 23:24, Dickson Taunagita  a écrit :
> 
> Hi,
> 
> I just downloaded QGIS 3.4.4 and currently (trying to) teach myself and need 
> some assistance.
> 
> How can I key in coordinates to add a point in QGIS 3.4.4?
> I am currently experiencing an error in adding an AutoCAD dxf file in QGIS 
> 3.4.4.  I am getting the "CRS was undefined ..." error.
> Your assistance will be greatly appreciated.
> 
> Dickson
> 
> 
> 
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Re: [Qgis-user] (no subject)

[Brent Wood]

To add a point, you need to create  a new empty point layer and make it 
editable, so QGIS has somewhere to write the points to.

If you already have a layer to add to, then open that & make it editable 
instead of creating a new layer.


If you are digitising features, you might also enable the digitising & advanced 
digitising (if appropriate) toolbars. (View -> Toolbars on the main menu bar)


A DXF has vertices defined by coordinates. You need to tell QGIS what 
coordinate reference system these coordinates use.



In general, there is a welth of help for this stuff already out there - Google 
is your friend (in this case :-)

If you google for "how to add points in qgis" there are on line videos, 
tutorials, etc... should provide all you need to know...


The same applies to almost any task in QGIS, that is how I justy found a plugin 
you can install, just click on "Plugins" and once

QGIS had downloaded the list of available plugins, search for DXF to find 
"Another DXF Importer / DXF2Shape Converter"



Hope this helps


Brent Wood

Programme leader: Environmental Information Delivery
NIWA
DDI:  +64 (4) 3860529


[cid:imagee98db1.PNG@c26a15af.47bdbe75]


Brent Wood
Principal Technician - GIS and Spatial Data Management
Programme Leader - Environmental Information Delivery
T +64-4-386-0529

National Institute of Water & Atmospheric Research Ltd (NIWA)
301 Evans Bay Parade, Greta Point, Wellington
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From: Qgis-user  on behalf of Dickson 
Taunagita 
Sent: Sunday, January 27, 2019 11:24:12 AM
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] (no subject)


Hi,

I just downloaded QGIS 3.4.4 and currently (trying to) teach myself and need 
some assistance.


  1.  How can I key in coordinates to add a point in QGIS 3.4.4?
  2.  I am currently experiencing an error in adding an AutoCAD dxf file in 
QGIS 3.4.4.  I am getting the "CRS was undefined ..." error.

Your assistance will be greatly appreciated.

Dickson






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Re: [Qgis-user] (no subject)

[nwastra]

...and what is the question?

N

> On 19 Oct 2018, at 10:20 pm, Amila Bajic  wrote:
> 
> Hi everybody, 
> 
> I'm working as a GIS consultant and my company and team are hiring for some 
> new clients. We are almost using QGIS, that why I'm asking here. Another 
> reason why I ask is because I read everyday your questions (learn a lot) and 
> I guess I could find somene's help here. If anyone have some idea, please let 
> me know. You can also send me private e-mail.
> 
> Thank you and sorry for bothering you all!!
> Best regards, 
> Amila
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Re: [Qgis-user] (no subject)

[Tudorache, Marian]

Hi Fred,

You include quite a lot of questions.
Changing layer color is done by styling.
You click right on the layer and choose properties. Go to the tab Style.
You can change the color of the features displayed in your layer, the 
transparency, unit of measurements etc.

Also I can't see a line of crosses, points opposite the nodes by the polygon  
so I don't know how to do this does any know how to correct this, sort it out?
I think you refers to the points which build a specific feature.
If you use vectorial layers there are three types: points, lines and polygon. 
You cannot have a layer with mixed types.
When you work with point layers it is simple. Each feature on the layer is a 
point.
When you work with lines you see the lines which connect the point defined by 
your clicks on the canvas.
If you want to visuals those  points you need to have the layer in edit mode 
and select a specific line feature, You can see the defined points by a small 
red x.
The same with polygon layer type.

Be aware the lines which are drawn manually are simple. They do not follow the 
contour of the earth like Great Circle, Rhumble lines. If you want to draw a 
great circle line you need create plugin or used one of the plugins which exist.
You have all kind of processing algorithm which can operate on you layers.

Changing the layer symbols.
You can change the symbol but not the layer type. Go to layer style as I 
explained above.

Do I answer to your questions?

Marian

From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Fred 
Ralston
Sent: May-30-17 12:34 PM
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] (no subject)


Hi

I have been trying to learn how to use QGIS following the QGIS online tutorial. 
I am on lesson 6.2 part 2. Though I am still struggling to work out how to do 
this as my area of my places layer should be a different colour which I have 
tried to change but I don't know how as its shows as green on the tutorial but 
white at the moment does anyone know about this? .Also I can't see a line of 
crosses, points opposite the nodes by the polygon  so I don't know how to do 
this does any know how to correct this, sort it out?. Also each of the layers 
appear as symbols which I can't find,remember this being in the tutorial does 
anyone know how to change these layers so there are symbols.  I am basically 
just stuck on this lesson which I am finding very tricky and I badly need help 
with this. I have tried Stack Exchange but to no avail.

Kind Regards

Fred Ralston



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Re: [Qgis-user] (no subject)

[Stephen Bosch]

Hi Fred,

To help us help you, please

- formulate your question more clearly. What exactly are you trying to do?
What behaviour do expect? What behaviour are you getting?
- provide a link to the specific tutorial page you are following.
- let us know what version of QGIS you are using and on which operating
system.

Have you posted a question on Stack Exchange? If so, please provide a link.

Thanks

Stephen


On Tue, May 30, 2017 at 6:33 PM, Fred Ralston 
wrote:

> Hi
>
> I have been trying to learn how to use QGIS following the QGIS online
> tutorial. I am on lesson 6.2 part 2. Though I am still struggling to work
> out how to do this as my area of my places layer should be a different
> colour which I have tried to change but I don't know how as its shows as
> green on the tutorial but white at the moment does anyone know about this?
> .Also I can't see a line of crosses, points opposite the nodes by the
> polygon  so I don't know how to do this does any know how to correct this,
> sort it out?. Also each of the layers appear as symbols which I can't
> find,remember this being in the tutorial does anyone know how to change
> these layers so there are symbols.  I am basically just stuck on this
> lesson which I am finding very tricky and I badly need help with this. I
> have tried Stack Exchange but to no avail.
>
> Kind Regards
>
> Fred Ralston
>
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Re: [Qgis-user] (no subject)

[Nicolas Cadieux]

Hi, 
I remember reading an article by Anita Graser explaining that the modeler did 
not yet have conditional modeling I may be wrong as Qgis changes 
rapidly. 
https://anitagraser.com 
On May 11, 2016 01:28, Sebastian Teßmer [via OSGeo.org]
ml-node+s1560n5265686...@n6.nabble.com wrote: Hello everybody, 

there is in the graphical modeling in QGIS the possibility 
install error routines, or when an error occurs in the execution 
skip to the causative fault? and at the next Process to continue? 

For example: 

- I use the process extract After attribute value 
- Now there is this value not - entire routine is aborted 
- But instead QGIS should  perform another routine 

Unfortunately, I have found nothing in the documentation. 

Many thanks and greetings, 

Sebastian  
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Re: [Qgis-user] (no subject)

[Nicolas Cadieux]

Bonjour, 
Mon Qgis est en anglais. 
Projects/new print composer 
Ensuite, ajout une carte (petit icon de parchemin gris avec un plus,) 
Ensuite slectionne le cadre de la carte et  droite, 
slectionne "item properties, Grid, plus". Par dfaut, le 
systme de coordonnes du projet sera impos. Vous pouvez 
le change en wgs84 pour avoir des degr minutes second si vous voulez. 
Dans " draw coordinates" vous pouvez choisir la position du texte autour du 
cadre. Il faut toujours slectionn le cadre de la carte pour 
avoir accs  ce menu. 
Bonne journe! 
Nicolas Cadieux M.Sc. 
Les Entreprises Archotec inc. 
8548, rue Saint-Denis Montral H2P 2H2 
Tlphone:514.381.5112 Fax: 514.381.4995 
www.archeotec.ca 
On Jan 28, 2016 09:53, Abdoulaye Diallo [via OSGeo.org]
ml-node+s1560n5247821...@n6.nabble.com wrote: 

bonjour à toute la communauté. jai réalisé une carte de la Guinée à
partir dun shp télécharger sur le site de la FAO. Je rencontre une
difficulté, celle de mettre les coordonnées géographiques tout au tour
du cadre pour la mise en page. merci pour un coup de main. A très
vite.
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Re: [Qgis-user] (no subject)

[DelazJ]

Bonjour,
Dans les propriétés de l'objet Carte du composeur, ça se passe dans la
partie "Graticule" qu'il faut activer.
Je vous invite à lire ce passage dans la doc
http://docs.qgis.org/2.8/fr/docs/user_manual/print_composer/print_composer.html#grids
qui présente un peu toutes les options disponibles.
N'hésitez pas, si besoin de précision

Le 28 janvier 2016 à 17:09, Nicolas Cadieux 
a écrit :

> Bonjour,
>
> Mon Qgis est en anglais.
>
> Projects/new print composer
> Ensuite, ajouté une carte (petit icon de parchemin gris avec un plus,)
> Ensuite  sélectionne le cadre de la carte et à droite, sélectionne "item
> properties, Grid, plus". Par défaut, le système de coordonnées du projet
> sera imposé.  Vous pouvez le change en wgs84 pour avoir des degré minutes
> second si vous voulez.
>
> Dans " draw coordinates" vous pouvez choisir la position du texte autour
> du cadre.  Il faut toujours sélectionné le cadre de la carte pour avoir
> accès à ce menu.
>
> Bonne journée!
>
> Nicolas Cadieux M.Sc.
> Les Entreprises Archéotec inc.
> 8548, rue Saint-Denis Montréal H2P 2H2
> Téléphone: 514.381.5112  Fax: 514.381.4995
> www.archeotec.ca
> On Jan 28, 2016 09:53, "Abdoulaye Diallo [via OSGeo.org] " <[hidden email]
> > wrote:
>
> bonjour à toute la communauté. j'ai réalisé une carte de la Guinée à
> partir d'un shp télécharger sur le site de la FAO. Je rencontre une
> difficulté, celle de mettre les coordonnées géographiques tout au tour
> du cadre pour la mise en page. merci pour un coup de main. A très
> vite.
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Re: [Qgis-user] (no subject)

[Springfield Harrison]

Yes, not likely difficult to implement.

Also a quick key shortcut to bring up the snap settings.

Cheers . . . . .   Spring
Samsung Tab 4
On Nov 15, 2015 9:52 AM, "ralfwessels"  wrote:

> hi Springfield,
>
> ah ok, I just thought this is also implemented in QGIS, but I tried it on
> QGIS 2.8.3 on Windows and it is not.
> When I press the space bar during digitizing in QGIS, I can move the map
> with my mouse, but snap is still activated.
>
> . so I agree, it would be nice to have the same "snap stop"
> functionality in QGIS like in ArcGIS or Manifold GIS.
>
> ralf
>
>
>
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Re: [Qgis-user] (no subject)

[ralfwessels]

hi Springfield,

ah ok, I just thought this is also implemented in QGIS, but I tried it on
QGIS 2.8.3 on Windows and it is not.
When I press the space bar during digitizing in QGIS, I can move the map
with my mouse, but snap is still activated.

. so I agree, it would be nice to have the same "snap stop"
functionality in QGIS like in ArcGIS or Manifold GIS.

ralf



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Re: [Qgis-user] (no subject)

[ralfwessels]

Hi Springfield,

would be interesting to know what shortcut this is - for none Manifold GIS
users!

ralf



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Re: [Qgis-user] (no subject)

[Springfield Harrison]

Yes, same implementation in Manifold GIS. Very useful.

Cheers . . . . .   Spring
Samsung Tab 4
On Nov 13, 2015 5:19 AM, "Christian Röttger"  wrote:

> Dear all,
>
> does anyone know if there is a keyboard shortcut to temporarly stop
> snapping while digitizing? As Example, i want to digitize a polygon very
> close to another one. Then my vertex snaps to the point but i want to set
> it exactly beside the point. I know this feature from ArcGis where one can
> press Space to temporary deactivate snapping, set the point, release space
> and snap to the next points.
>
> Thanks Christian
>
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Re: [Qgis-user] (no subject)

[Springfield Harrison]

Hello Ralf,

For Manifold, it is also the space bar.  Once snapping is 
enabled it is then turned on/off with the space bar so it can be interrupted.


Cheers . . . . .



At 13-11-2015 09:14 Friday, ralfwessels wrote:
Hi Springfield, would be interesting to know what shortcut this is - 
for none Manifold GIS users! ralf -- View this message in context: 
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Re: [Qgis-user] (no subject)

[Goyo]

Or if you really want geoPDF, it is explained here:

http://www.northrivergeographic.com/archives/migrating-a-project-from-arcgis-to-qgis-georeferenced-pdfs

Goyo

2015-10-18 15:33 GMT+02:00 Goyo :
> You can export a world file with georeferencing information along with
> the composer. In the "Composition" tab, "Export settings", check
> "World file on" and select the map (I guess there will be just one map
> in your case).
>
> I do not think this will work for pdfs but it will do for image
> formats (pdf, tiff, jpeg...)
>
> Hope it helps
>
> Goyo
>
>
> 2015-10-18 2:35 GMT+02:00 Pony Express :
>>
>> I am a new user to QGIS, and interested in making referenced pdf maps for
>> Avenza App.  I find this app excellent out in the middle of no where as the
>> GPS on my phone places me on the map.  I tend to be rather adventurous, and
>> often can find images of maps for places I travel, but not with the geo
>> referencing.  I have tried to use QGIS and was able to make images with
>> references, but when using print composer to save the pdf, Avenza says the
>> map is not referenced.  :(
>>
>> Obviously I am not doing something correctly, could some one give me a short
>> tutorial or point me to a tutorial?
>>
>> I have attached link of a map of interest.
>>
>> http://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5357542.pdf
>> --
>> Pony
>>
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Re: [Qgis-user] (no subject)

[Goyo]

You can export a world file with georeferencing information along with
the composer. In the "Composition" tab, "Export settings", check
"World file on" and select the map (I guess there will be just one map
in your case).

I do not think this will work for pdfs but it will do for image
formats (pdf, tiff, jpeg...)

Hope it helps

Goyo


2015-10-18 2:35 GMT+02:00 Pony Express :
>
> I am a new user to QGIS, and interested in making referenced pdf maps for
> Avenza App.  I find this app excellent out in the middle of no where as the
> GPS on my phone places me on the map.  I tend to be rather adventurous, and
> often can find images of maps for places I travel, but not with the geo
> referencing.  I have tried to use QGIS and was able to make images with
> references, but when using print composer to save the pdf, Avenza says the
> map is not referenced.  :(
>
> Obviously I am not doing something correctly, could some one give me a short
> tutorial or point me to a tutorial?
>
> I have attached link of a map of interest.
>
> http://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5357542.pdf
> --
> Pony
>
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Re: [Qgis-user] (no subject)

[Brent Wood]

Hi,
Don't save as a pdf - these do not generally work as georeferenced images & 
QGIS cannot create a geopdf.
The easy way is without using the print composer, just save the project as an 
image (Project menu) - the default is a georeferenced png (png + world file).
Avenza cannot read these, but QGIS can. Open the png image you just saved as a 
new raster layer in QGIS, & then save it as a Gtiff format image. This should 
create a geotiff of the map that you can read with Avenza.
Cheers,
Brent Wood




  From: Pony Express 
 To: qgis-user@lists.osgeo.org 
 Sent: Sunday, October 18, 2015 1:35 PM
 Subject: [Qgis-user] (no subject)
   

I am a new user to QGIS, and interested in making referenced pdf maps for 
Avenza App.  I find this app excellent out in the middle of no where as the GPS 
on my phone places me on the map.  I tend to be rather adventurous, and often 
can find images of maps for places I travel, but not with the geo referencing.  
I have tried to use QGIS and was able to make images with references, but when 
using print composer to save the pdf, Avenza says the map is not referenced.  :(

Obviously I am not doing something correctly, could some one give me a short 
tutorial or point me to a tutorial?

I have attached link of a map of interest.

http://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5357542.pdf
-- 
Pony
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Re: [Qgis-user] (no subject)

[Paolo Cavallini]

Il 15/09/2015 14:28, Abdoulaye Diallo ha scritto:
> hello group, excuse me someone knows, how to join or find the QGIS
> contributors email? i want to say, the people who made the différents
> extensions  or plugin of QGIS. thanks.

Hi,
for privacy reasons we do not make the addresses public. However, you
can try to contact them through the code repositories, mostly on github.
All the best.

-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
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Re: [Qgis-user] (no subject)

[Paolo Cavallini]

Il 19/07/2015 19:41, Abdoulaye Diallo ha scritto:
 Bonjour à tous. J’utilise QGIS 2.8.1  et 2.0. Sur mon appareil
 (Windows 8, 64 bits) et je rencontre quelques difficultés. En effet,
 je n'arrive pas à télécharger l'extension open map layer pour
 l'utilisation des fonds de cartes. Aussi, tout récemment, j'ai
 installé sur mon PC l'antivirus Kaspersky 2015. Depuis lors, quand je
 lance le logiciel, il commence à charger et se bloque au niveau de
 l'installation de l'interface graphique. J’ai essayé de travailler
 avec QGIS 2.6.1, mais c'est le même souci. Quelqu’un saurai-t-il ce
 qui se passe? Merci.

Bonjour Abdoulaye,
please note that this mailing list is in English. You might find others
in French if you prefer.
Most probably your antivirus is blocking some parts of QGIS. Try to
deactivate it.
All the best.
-- 
Paolo Cavallini - www.faunalia.eu
QGIS  PostGIS courses: http://www.faunalia.eu/training.html
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Re: [Qgis-user] (no subject)

[Nicolas Cadieux]

Hi everyone, 
Many people here also speak french and other languages (and I have given him 
the same advice Pablo has but in french). The fact is that this is the very 
best list and the nature of the web is international. 
Indicating to people that this is an English list (i have seen this comment a 
few times now) is inflammatory in many countries... It is the equivalent of 
saying English only, others not wanted... I very well know that this was not 
anybody's intention.nbsp; Just be careful:).nbsp; 
Nicolas Cadieux 
On Jul 20, 2015 06:53, quot;Paolo Cavallini [via OSGeo.org]quot; 
lt;ml-node+s1560n5216222...@n6.nabble.comgt; wrote: 

Il 19/07/2015 19:41, Abdoulaye Diallo ha scritto:
gt; Bonjour à tous. J’utilise QGIS 2.8.1  et 2.0. Sur mon appareil
gt; (Windows 8, 64 bits) et je rencontre quelques difficultés. En effet,
gt; je n#39;arrive pas à télécharger l#39;extension open map layer pour
gt; l#39;utilisation des fonds de cartes. Aussi, tout récemment, j#39;ai
gt; installé sur mon PC l#39;antivirus Kaspersky 2015. Depuis lors, quand je
gt; lance le logiciel, il commence à charger et se bloque au niveau de
gt; l#39;installation de l#39;interface graphique. J’ai essayé de travailler
gt; avec QGIS 2.6.1, mais c#39;est le même souci. Quelqu’un saurai-t-il ce
gt; qui se passe? Merci.
Bonjour Abdoulaye,
please note that this mailing list is in English. You might find others
in French if you prefer.
Most probably your antivirus is blocking some parts of QGIS. Try to
deactivate it.
All the best.
-- 
Paolo Cavallini - www.faunalia.eu
QGIS amp; PostGIS courses: http://www.faunalia.eu/training.html 
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Re: [Qgis-user] (no subject)

[Nicolas Cadieux]

Bonjour, 
D#233;sactive l'antivirus avant d'installer QGIS. Si tu veux plus d'aide avec 
le open layer plugin, donne les code d'erreur svp (si il en a). 
Nicolas Cadieux M.Sc. 
Les Entreprises Arch#233;otec inc.#160; 
8548, rue Saint-Denis Montr#233;al H2P 2H2 
T#233;l#233;phone:#160;514.381.5112 #160;Fax: 514.381.4995 
www.archeotec.ca 
On Jul 19, 2015 13:36, quot;Abdoulaye Diallo [via OSGeo.org]   quot; 
lt;ml-node+s1560n5216173...@n6.nabble.comgt; wrote: 

Bonjour à tous. J’utilise QGIS 2.8.1  et 2.0. Sur mon appareil
(Windows 8, 64 bits) et je rencontre quelques difficultés. En effet,
je n#39;arrive pas à télécharger l#39;extension open map layer pour
l#39;utilisation des fonds de cartes. Aussi, tout récemment, j#39;ai
installé sur mon PC l#39;antivirus Kaspersky 2015. Depuis lors, quand je
lance le logiciel, il commence à charger et se bloque au niveau de
l#39;installation de l#39;interface graphique. J’ai essayé de travailler
avec QGIS 2.6.1, mais c#39;est le même souci. Quelqu’un saurai-t-il ce
qui se passe? Merci.
Cordialement Abdoulaye,
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Re: [Qgis-user] (no subject)

[Ramon Andiñach]

Hi there, 

You get to opt in and opt out of this list by yourself. 

At the bottom of this (and every other qgis-user) email is a link. If you 
follow that, you'll find a way to do achieve your goal.

-ramon.

 On 1 Jul 2015, at 19:00, Lloyd Julius lloydj4...@gmail.com wrote:
 
 Please remove me from all your lists. I do not want to receive any mail
 
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Re: [Qgis-user] (no subject)

[Nicolas Cadieux]

Bonjour,

Je vois que Assabou et Régis vous ont fournit de l'aide.   Je ne connaissais 
pas les list de Régis mais il ne faut pas être gêne de pauser des questions en 
Français sur cette liste.  (Il faut mettre un sujet pour être plus efficace:)

De mon côté, je ne travail pas en  Afrique donc je ne connais pas les données 
disponibles.  De mon côté, lorsque je travail dans une nouvelle région,  
j'utilise Google pour trouver des images, des serveur wms ou des basses de 
données vectoriel.  Il y a toujours la Nasa qui offre des services gratuits.  
Si vous voulez plus d'aide, soyer plus spécifique sur la région d'étude et le 
sujet de recherche et plus de gens pourrons vous aider.

Nicolas Cadieux M.Sc.
Les Entreprises Archéotec inc. 
8548, rue Saint-Denis Montréal H2P 2H2
Téléphone: 514.381.5112  Fax: 514.381.4995
www.archeotec.ca

On Jun 24, 2015 5:48 AM, Abdoulaye Diallo [via OSGeo.org]  
ml-node+s1560n5212630...@n6.nabble.com wrote:

 
  Hello, i want to ask something of QGIS 2.8, but excuse me i don't 
  speak english very well. then i do my question in french. thanks. 
  Je veux géo-référencer une image de l’Afrique de l'ouest dans qgis 2.8 
  à partir d'une carte existante déjà dans une base de données de qgis 
  et possédant tous les paramètres. Le souci est que je n'arrive pas à 
  télécharger cette de base dont j'ai besoin. J’ai téléchargé le 
  logiciel mais je n'ai aucune base de données à ma disposition. De 
  plus, comment procéder pour télécharger des cartes de pays du 
  continent africain en dehors des données vecteurs et des images 
  satellites. Merci d'avance pour votre aide. Cordialement, 
  Système PC: windows 8 
  GIS: 2.8 
  Date: 24/06/2015 
  Name: Abdoulaye, étudiant master II de Géographie (Gestion des 
  ressources naturelles). Burkina Faso 
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Re: [Qgis-user] (no subject) Invisibility of SQL layer in QGIS 206.1

[Johanna Botman]

Thanks to those who took the time to think about my issue.  My projections
were / are fine, and I only have line geometry in this table

I have been able to isolate the error to one involving MapInfo and Easy
Loader in 64bit.  All my original tables were loaded using 32bit MI. Since
then we have updated to the latest 64bit version. Loading my table using
that seems to have caused the issue.

It surprises me that the only program that had issues with representing the
layer was QGIS. It is usually so forgiving.

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Ph: 02 6962 8168
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Re: [Qgis-user] (no subject) Invisibility of SQL layer in QGIS 206.1

[Nathan Woodrow]

It might have added some extra padding to the geometry which I have seen
cause issues.

Could you post of dump of a single line from your table?

Nathan

On Fri, 20 Feb 2015 7:14 am Johanna Botman 
johanna.bot...@griffith.nsw.gov.au wrote:

 Thanks to those who took the time to think about my issue.  My projections
 were / are fine, and I only have line geometry in this table

 I have been able to isolate the error to one involving MapInfo and Easy
 Loader in 64bit.  All my original tables were loaded using 32bit MI. Since
 then we have updated to the latest 64bit version. Loading my table using
 that seems to have caused the issue.

 It surprises me that the only program that had issues with representing
 the layer was QGIS. It is usually so forgiving.

 ___
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 GIS / Assets Officer

 Griffith City Council
 Ph: 02 6962 8168





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Re: [Qgis-user] (no subject)

[Alexandre Neto]

Helllo abhijeet,

To hide certain columns you need to go to the layer properties - fields
tab. Then, for each of the desired fields, you can set the Edit Widget as
Hidden.

To sort the attribute table by an especific column, all you need to do is
click over the column name. First click will sort it descending, the second
one will sort ascending.

I hope it helps,

Alexandre Neto

On Wed, Feb 4, 2015 at 1:08 PM, HISP.abhijeet abhijeet.7...@gmail.com
wrote:

 hi Alexander,
 thanks for replying,
 1st- suppose i have 10 columns and i want to see only 4 columns.
 2nd- similarly i want to sort my rows by specifics for eg: in the Name
 column all the attributes with last name SC should be sorted.
 how can i do, what would be the expressions.
 On 4 Feb 2015 6:12 pm, Alexandre Neto senhor.n...@gmail.com wrote:

 Hello abhijeet,

 Please give use the example of the expression used, and the data
 structure of your layer.

 Best regards,

 Alexandre Neto

 On Wed, Feb 4, 2015 at 12:32 PM, HISP.abhijeet abhijeet.7...@gmail.com
 wrote:

 Hi all,
 i am using QGIS 2.4 and i want to do sorting and filtering in attribute
 table
 in a *vector layer*.
 there is an advance filtering option and i tried but failed to do or may
 be i am putting the expression wrong.
 please can any one help me on this.
 *Regards,*

 * Abhijeet*

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Re: [Qgis-user] (no subject)

[HISP.abhijeet]

thanks Alexander, this is helpful. one more thing though, about my 2nd
question apart from ascending and descending, is there any way i can sort
by name like names like 'abc' only.
result should be: all the names having character 'abc' should display.
On 4 Feb 2015 7:23 pm, Alexandre Neto senhor.n...@gmail.com wrote:

 Helllo abhijeet,

 To hide certain columns you need to go to the layer properties - fields
 tab. Then, for each of the desired fields, you can set the Edit Widget as
 Hidden.

 To sort the attribute table by an especific column, all you need to do is
 click over the column name. First click will sort it descending, the second
 one will sort ascending.

 I hope it helps,

 Alexandre Neto

 On Wed, Feb 4, 2015 at 1:08 PM, HISP.abhijeet abhijeet.7...@gmail.com
 wrote:

 hi Alexander,
 thanks for replying,
 1st- suppose i have 10 columns and i want to see only 4 columns.
 2nd- similarly i want to sort my rows by specifics for eg: in the Name
 column all the attributes with last name SC should be sorted.
 how can i do, what would be the expressions.
 On 4 Feb 2015 6:12 pm, Alexandre Neto senhor.n...@gmail.com wrote:

 Hello abhijeet,

 Please give use the example of the expression used, and the data
 structure of your layer.

 Best regards,

 Alexandre Neto

 On Wed, Feb 4, 2015 at 12:32 PM, HISP.abhijeet abhijeet.7...@gmail.com
 wrote:

 Hi all,
 i am using QGIS 2.4 and i want to do sorting and filtering in attribute
 table
 in a *vector layer*.
 there is an advance filtering option and i tried but failed to do or
 may be i am putting the expression wrong.
 please can any one help me on this.
 *Regards,*

 * Abhijeet*

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Re: [Qgis-user] (no subject)

[Alexandre Neto]

In that case, you need to use an expression to select the desired rows.

An expression like this will probably work:

Name_column LIKE 'abc%'

After this you can click on the bottom left button and choose Show
selected features only.

If you want to make it more permanent (i.e., not dependent of the selected
features) you can use the expression on the layers filter (right-click the
layer  filter)

Alexandre

On Wed, Feb 4, 2015 at 2:20 PM, HISP.abhijeet abhijeet.7...@gmail.com
wrote:

 thanks Alexander, this is helpful. one more thing though, about my 2nd
 question apart from ascending and descending, is there any way i can sort
 by name like names like 'abc' only.
 result should be: all the names having character 'abc' should display.
 On 4 Feb 2015 7:23 pm, Alexandre Neto senhor.n...@gmail.com wrote:

 Helllo abhijeet,

 To hide certain columns you need to go to the layer properties - fields
 tab. Then, for each of the desired fields, you can set the Edit Widget as
 Hidden.

 To sort the attribute table by an especific column, all you need to do is
 click over the column name. First click will sort it descending, the second
 one will sort ascending.

 I hope it helps,

 Alexandre Neto

 On Wed, Feb 4, 2015 at 1:08 PM, HISP.abhijeet abhijeet.7...@gmail.com
 wrote:

 hi Alexander,
 thanks for replying,
 1st- suppose i have 10 columns and i want to see only 4 columns.
 2nd- similarly i want to sort my rows by specifics for eg: in the Name
 column all the attributes with last name SC should be sorted.
 how can i do, what would be the expressions.
 On 4 Feb 2015 6:12 pm, Alexandre Neto senhor.n...@gmail.com wrote:

 Hello abhijeet,

 Please give use the example of the expression used, and the data
 structure of your layer.

 Best regards,

 Alexandre Neto

 On Wed, Feb 4, 2015 at 12:32 PM, HISP.abhijeet abhijeet.7...@gmail.com
  wrote:

 Hi all,
 i am using QGIS 2.4 and i want to do sorting and filtering in
 attribute table
 in a *vector layer*.
 there is an advance filtering option and i tried but failed to do or
 may be i am putting the expression wrong.
 please can any one help me on this.
 *Regards,*

 * Abhijeet*

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 Qgis-user@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-user




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Re: [Qgis-user] (no subject)

[Phil (The Geek) Wyatt]

You will need to somehow assign geographic references (Lat/Long) to each 
address. This might be achieved by geocoding from the addresses. Under plugins, 
check if the experimental MMQGIS plugin is loaded. This has a menu item for 
geocoding the addresses from Google and Open Street Mapping.

 

Cheers - Phil

 

From: qgis-user-boun...@lists.osgeo.org 
[mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of 
labiancamaril...@libero.it
Sent: Tuesday, 27 January 2015 2:20 AM
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] (no subject)

 

Dear all,
I should add  a spreadsheet with data containing the addresses of commercial 
activities to be loaded in QGIS.
The spreadsheet (Excel) contains the name, code, complete address, city.
How can I assign these values properly if I want to use open layer plugin with 
a road map of Google?

Thanks

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Re: [Qgis-user] (no subject)

[zehari]

Dear all,
I'm apologize, I mean,  in my qgis 2.6, the problem just only on print
composers.

best
zehari


On Sat, Dec 6, 2014 at 4:12 PM, zehari mridua...@gmail.com wrote:

 Dear all,
 Print Composers in QGIS 2.6 in my ubuntu does not work.
 program stopped on the menu composer. After that there is no any message.
 what is the problem. Can anyone help me?
 Thanks for the help

 Best,
 Zehari


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Re: [Qgis-user] (no subject)

[Paolo Cavallini]

Il 04/11/2014 16:43, laura guy ha scritto:
 Hi,
 
 I am trying to install and use Open Layers Plugin in QGIS version 2.4.0

Laura: first of all, please upgrade to qgis 2.6 and see if the problem persist.
all the best.

-- 
Paolo Cavallini - www.faunalia.eu
Corsi QGIS e PostGIS: http://www.faunalia.eu/training.html
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Re: [Qgis-user] (no subject) - Compressing Raster

[Alex Mandel]

On 07/29/2014 01:45 AM, Peter Versteeg wrote:
 thank you very much for the email.
 
 
 
 I think I am almost there. I have set the compression to LZW and did a
 export and I did a export on high compression. Both are still really big.
 
 
 
 in your first mail you explained about:
 
 
 
 The type of number stored dictates a large amount of overhead,
 there is
 a huge difference between Integer and Float.
 
 -co COMPRESS=LZW  -ot Int16
 
 See http://www.gdal.org/gdal_translate.html for options.
 Pick the
 smallest type of number storage that holds your data
 correctly. Most
 GDAL tools will default to Float, that is likely the
 difference.
 
 
 
 In the save raster as window where i also set the compress to LZW i did try
 to ad a line but i do not know what to type.
 
 name: Int value 16 or name ot value int16 all do not work.
 
 
 
 Can you tell me what line to write
 
 
 
 gr Peter
 

As I said in my previous email:
If that still isn't enough use GDAL Translate found on the Raster menu
under Conversion. There you will be able to set all the possible options.

Basically the options are not in the Save As dialog. I will talk to the
developers about adding more options.

Please reply to the list when replying.

Thanks,
Alex
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Re: [Qgis-user] (no subject) - Compressing Raster

[Etienne Tourigny]

On Tue, Jul 29, 2014 at 1:10 PM, Alex Mandel tech_...@wildintellect.com
wrote:

 On 07/29/2014 01:45 AM, Peter Versteeg wrote:
  thank you very much for the email.
 
 
 
  I think I am almost there. I have set the compression to LZW and did a
  export and I did a export on high compression. Both are still really big.
 
 
 
  in your first mail you explained about:
 
 
 
  The type of number stored dictates a large amount of
 overhead,
  there is
  a huge difference between Integer and Float.
 
  -co COMPRESS=LZW  -ot Int16
 
  See http://www.gdal.org/gdal_translate.html for options.
  Pick the
  smallest type of number storage that holds your data
  correctly. Most
  GDAL tools will default to Float, that is likely the
  difference.
 
 
 
  In the save raster as window where i also set the compress to LZW i did
 try
  to ad a line but i do not know what to type.
 
  name: Int value 16 or name ot value int16 all do not work.
 
 
 
  Can you tell me what line to write
 
 
 
  gr Peter
 

 As I said in my previous email:
 If that still isn't enough use GDAL Translate found on the Raster menu
 under Conversion. There you will be able to set all the possible options.

 Basically the options are not in the Save As dialog. I will talk to the
 developers about adding more options.


You can do pretty much the same things as in the GDAL Translate tool - see
the Creation Options group box. What is missing exactly?


 Please reply to the list when replying.

 Thanks,
 Alex
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Re: [Qgis-user] (no subject) - Compressing Raster

[Alex Mandel]

On 07/29/2014 10:31 AM, Etienne Tourigny wrote:
 On Tue, Jul 29, 2014 at 1:10 PM, Alex Mandel tech_...@wildintellect.com
 wrote:
 
 On 07/29/2014 01:45 AM, Peter Versteeg wrote:
 thank you very much for the email.



 I think I am almost there. I have set the compression to LZW and did a
 export and I did a export on high compression. Both are still really big.



 in your first mail you explained about:



 The type of number stored dictates a large amount of
 overhead,
 there is
 a huge difference between Integer and Float.

 -co COMPRESS=LZW  -ot Int16

 See http://www.gdal.org/gdal_translate.html for options.
 Pick the
 smallest type of number storage that holds your data
 correctly. Most
 GDAL tools will default to Float, that is likely the
 difference.



 In the save raster as window where i also set the compress to LZW i did
 try
 to ad a line but i do not know what to type.

 name: Int value 16 or name ot value int16 all do not work.



 Can you tell me what line to write



 gr Peter


 As I said in my previous email:
 If that still isn't enough use GDAL Translate found on the Raster menu
 under Conversion. There you will be able to set all the possible options.

 Basically the options are not in the Save As dialog. I will talk to the
 developers about adding more options.

 
 You can do pretty much the same things as in the GDAL Translate tool - see
 the Creation Options group box. What is missing exactly?

-ot is missing, which lets you set the number type int/float etc

I have not tested if the save as dialog allows this, I was guessing that
only -co options were allowed in the Create Options section. -ot is not
a -co option, its a separate flag for gdal.

Thanks,
Alex




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Re: [Qgis-user] (no subject) - Compressing Raster

[Etienne Tourigny]

RIght, sorry about the confusion. You should file a feature request ticket
for this, it is not a simple as it seems.

Etienne


On Tue, Jul 29, 2014 at 2:39 PM, Alex Mandel tech_...@wildintellect.com
wrote:

 On 07/29/2014 10:31 AM, Etienne Tourigny wrote:
  On Tue, Jul 29, 2014 at 1:10 PM, Alex Mandel tech_...@wildintellect.com
 
  wrote:
 
  On 07/29/2014 01:45 AM, Peter Versteeg wrote:
  thank you very much for the email.
 
 
 
  I think I am almost there. I have set the compression to LZW and did a
  export and I did a export on high compression. Both are still really
 big.
 
 
 
  in your first mail you explained about:
 
 
 
  The type of number stored dictates a large amount of
  overhead,
  there is
  a huge difference between Integer and Float.
 
  -co COMPRESS=LZW  -ot Int16
 
  See http://www.gdal.org/gdal_translate.html for
 options.
  Pick the
  smallest type of number storage that holds your data
  correctly. Most
  GDAL tools will default to Float, that is likely the
  difference.
 
 
 
  In the save raster as window where i also set the compress to LZW i did
  try
  to ad a line but i do not know what to type.
 
  name: Int value 16 or name ot value int16 all do not work.
 
 
 
  Can you tell me what line to write
 
 
 
  gr Peter
 
 
  As I said in my previous email:
  If that still isn't enough use GDAL Translate found on the Raster menu
  under Conversion. There you will be able to set all the possible
 options.
 
  Basically the options are not in the Save As dialog. I will talk to the
  developers about adding more options.
 
 
  You can do pretty much the same things as in the GDAL Translate tool -
 see
  the Creation Options group box. What is missing exactly?

 -ot is missing, which lets you set the number type int/float etc

 I have not tested if the save as dialog allows this, I was guessing that
 only -co options were allowed in the Create Options section. -ot is not
 a -co option, its a separate flag for gdal.

 Thanks,
 Alex





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Re: [Qgis-user] (no subject) - Compressing Raster

[Alex Mandel]

On 07/28/2014 07:03 AM, Peter Versteeg wrote:
 hello,
 
 when i right click my raster i do a save as. there i set the resolution and
 compress (see png). tbh i do not know any GDAL tools.
 
 
 
 greetings Peter
 
 
 [image: Inline afbeelding 1]
 
 

Did you try the High compression (In this case it's Deflate) option in
the Save As dialog?
http://linfiniti.com/2011/05/gdal-efficiency-of-various-compression-algorithms/

If that still isn't enough use GDAL Translate found on the Raster menu
under Conversion. There you will be able to set all the possible options.

FYI, if you want LZW specifically you need to pick one of the
compression options, like low, and then edit the Value from Packbits to LZW.

Thanks,
Alex
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Re: [Qgis-user] (no subject)

[Alex Mandel]

What tool in QGIS are you using to adjust the raster? Can you please
include the exact command you are currently using.

If you are using something from the Raster Menu (aka GDAL Tools) then
you need to set the compression and type of number manually.

The type of number stored dictates a large amount of overhead, there is
a huge difference between Integer and Float.

-co COMPRESS=LZW  -ot Int16

See http://www.gdal.org/gdal_translate.html for options. Pick the
smallest type of number storage that holds your data correctly. Most
GDAL tools will default to Float, that is likely the difference.

Thanks,
Alex

On 07/26/2014 06:35 AM, Peter Versteeg wrote:
 Hello,
 
 I use arcmap desktop 10.2.2. In the workflow i use atm i make a geotiff
 using the export map option in arcmap.
 
 I need 4000dpi and i use geotiff tags and compression (LZW).
 
 The resolutions of my geotiff is.
 
 See png
 
 [image: rasterinfo.png]
 https://geonet.esri.com/servlet/JiveServlet/showImage/2-391241-2616/rasterinfo.png
 
 I use the geotiff as raster for a 3D simulation. The software i use for
 this needs a specific resolution.
 
 They need to by in the power of 2.  So the rows and columns need to by
 4096, 8192, 16384, 32768, 65536, 131072 etc.
 
 I use QGIS to adjust the resolution. see png
 
 [image: rasterqgis.png]
 https://geonet.esri.com/servlet/JiveServlet/showImage/2-391241-2617/rasterqgis.png
 
 
 
 What i found out is that QGIS is not good with compression. My arcmap
 export fire is 120k. The file QGIS makes is 6292k without compression and
 4194 with compression.
 
 
 
 Also the low and high compression file size is the same and JPEG is not
 working.
 
 
 
 Why is the file size so big and what can i do about it.
 
 
 
 thank you and greetings Peter
 
 
 
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Re: [Qgis-user] (no subject)

[Werner Macho]

Hi!

There is a link at the bottom in every mail coming from this list:

http://lists.osgeo.org/mailman/listinfo/qgis-user

And the same way you managed to assign to the list you are able to resign from 
the list.

Hope this helps
Kind regards
Werner


On 04/22/2014 09:55 AM, Rahime GÜNAY wrote:


Hello,

I do not want to get more emails from Qgis-user email list.

Thank you,

Best.

*/Rahime GÜNAY/*

*İSBAK A.Ş. | CBS Uzmanı *

*Etüt ve Planlama Müdürlüğü*

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mailto:rgu...@isbak.com.tr***|***www.isbak.com.tr 
http://www.isbak.com.tr/


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Re: [Qgis-user] (no subject) LINK to UNSUBSCRIBE

[Zoltan Szecsei]

On 2014/04/22 10:29, Werner Macho wrote:

Hi!

There is a link at the bottom in every mail coming from this list:

I seem to remember a few weeks back, that our friendly list moderator 
was going make the links below read more explicitly.. (I'm sure it 
was on this list)
Something like this could work: TO UNSUBSCRIBE FROM THIS LIST GO 
TOhttp://lists.osgeo.org/mailman/listinfo/qgis-user

(now if only I could get them to flash :-) )

Regards,
Zoltan


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===
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Geograph (Pty) Ltd.
GIS and Photogrammetric Services

P.O. Box 7, Muizenberg 7950, South Africa.

Mobile: +27-83-6004028
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Re: [Qgis-user] (no subject)

[Jan Michálek]

You must compile gdal with OGDI library, replace your gdal in qgis with
this new gdal.


2014-04-01 15:01 GMT+02:00 Thomas Ferris tmfer...@yahoo.com:

 Hello,

 I'm new to QGIS.  I was hoping that someone can answer a very basic
 question for me.

 Can QGIS display Digital Nautical Chart (DNC) data in Vector Product
 Format (VPF) from the National Geospatial Intelligence Agency of the United
 States government?  Here's a web page describing these DNCs.


 https://www1.nga.mil/ProductsServices/NauticalHydrographicBathymetricProduct/Pages/DigitalNauticalChart.aspx

 The Supported Data Formats page under the User Manual section of the QGIS
 website provides the following link:

 http://www.gdal.org/ogr/ogr_formats.html

 This page says that the OGDI libray, which is necessary for VPF data, is
 not compiled into the OGR library by default.

 This is why I'm asking the question.

 Thank You in advance,

 Mark

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Re: [Qgis-user] (no subject)

[Richard Duivenvoorde]

On 02-01-14 14:14, Willem Korevaar wrote:
 As a geographer teacher I want my students to use Qgis in their spatial
 investigations, using their own data. What I want them to do with GIS is
 to get a rank correlationcoefficient (Rs) using their attribuut data.So
 they have for instance two layers with the same objects (neigbourhoods)
 but with different data ( columns like income and  % shops) . How can
 you use Qgis to get that Rs between income and %shops?
 I can do that in EXcel by copying both columns , rank them and get a
 fomula to get it, but I like to do this directly in Qgis. Is there a way
 (not too complicated I hope)?

Hi Willem,

mmm, rank correlation coefficient... [0] ?

it is not clear to me if you really need two layers. Does your (spatial)
data have both columns income and %shops?
If so, there is no need to load the layer twice, but you can use the
Field Calculator (see [1]) to create/calculate the value via the
creation of your formula using the values of the two columns.

if the data is NOT in the same dataset (eg you have a shp file with
zip-codes and and excel file with columns), you could create a join
first between those two datasets and THEN use the field calculator.

but to be honest, statistics is not my stronges point :-(
so please correct me if I'm wrong.

Regards,

Richard Duienvoorde

[0] http://en.wikipedia.org/wiki/Spearman%27s_rank_correlation_coefficient

[1]
http://qgis.org/en/docs/user_manual/working_with_vector/field_calculator.html
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Re: [Qgis-user] (no subject)

[Shriramana Sharma]

On Thu, Jan 2, 2014 at 9:16 AM, herath kumara herat...@yahoo.com wrote:
 Name mail  herath...@gmail.com
 Password 0718999012

Hello. Please NEVER send your mail password on to a public list.
Please immediately change your gmail password.

If you have a big file, please upload it somewhere like rapidshare and
send the link to the list. Please also clearly state your problem so
others can help you.

@List admin please delete the mail from the archives.

-- 
Shriramana Sharma ஶ்ரீரமணஶர்மா श्रीरमणशर्मा
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Re: [Qgis-user] (no subject)

[Akinyemi Emmanuel]

I concur.
On Jan 2, 2014 5:26 PM, Shriramana Sharma samj...@gmail.com wrote:

 On Thu, Jan 2, 2014 at 9:16 AM, herath kumara herat...@yahoo.com wrote:
  Name mail  herath...@gmail.com
  Password 0718999012

 Hello. Please NEVER send your mail password on to a public list.
 Please immediately change your gmail password.

 If you have a big file, please upload it somewhere like rapidshare and
 send the link to the list. Please also clearly state your problem so
 others can help you.

 @List admin please delete the mail from the archives.

 --
 Shriramana Sharma ஶ்ரீரமணஶர்மா श्रीरमणशर्मा
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Re: [Qgis-user] (no subject)

[Johan Nilsson]

In the bottom of the message there are a link, but I put it here also:
http://lists.osgeo.org/mailman/listinfo/qgis-user

There you can unsubscribe

/Cheers


2013/3/3 Karim Mata karimmata2...@yahoo.com

 How can I unsubscribe so that I can stop receiving communications from
 QGIS?
 My inbox has limits!
 Cheers

 K


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Re: [Qgis-user] (no subject)

[Etienne Tourigny]

Windows/MacOSX / Linux - and which version

On Sun, Sep 2, 2012 at 6:05 PM, Ing. Juan M. Bernales
jm_berna...@hotmail.com wrote:
 OS= Operative System

 From: Clinton E-Davidson
 Sent: Sunday, September 02, 2012 4:01 PM
 To: Ramon Andiñach
 Cc: Qgis-user@lists.osgeo.org
 Subject: Re: [Qgis-user] (no subject)

 Thanks Ramon,

 I,m using the latest qgis 1.8
 there is no other error message and Im using the Gdal tools. I dont
 understand OS.

 Thanks again.

 Clint

 
 From: Ramon Andiñach cust...@westnet.com.au
 To: Qgis-user@lists.osgeo.org Qgis-user@lists.osgeo.org
 Sent: Sunday, September 2, 2012 3:38 AM
 Subject: Re: [Qgis-user] (no subject)


 On 01/09/2012, at 22:34, Clinton E-Davidson clidnel...@yahoo.com wrote:

 Pls I'm a new user and trying to create a subset on my raster but I get the
 following: Computed -srcwin falls outside raster size of (1 x 1)
 2808x3453. Please, how do I resolve this.


 I'm probably not going to help much.
 Does it help if the image and project are in the same CRS (datm/projection)?

 Otherwise, some more information will help.
 Does QGIS give any more error message?
 Which version of QGIS are you using?
 Which OS?
 Are you trying to do this through GDAL tools ( the raster menu) or some
 other way?

 -ramon.

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Re: [Qgis-user] (no subject)

[Clinton E-Davidson]

Thanks Ramon,

I,m using the latest qgis 1.8

there is no other error message and Im using the Gdal tools. I dont understand 
OS.

Thanks again.

Clint




 From: Ramon Andiñach cust...@westnet.com.au
To: Qgis-user@lists.osgeo.org Qgis-user@lists.osgeo.org 
Sent: Sunday, September 2, 2012 3:38 AM
Subject: Re: [Qgis-user] (no subject)
 



On 01/09/2012, at 22:34, Clinton E-Davidson clidnel...@yahoo.com wrote:


Pls I'm a new user and trying to create a subset on my raster but I get 
the following: Computed -srcwin falls outside raster size of 
(1 x 1) 2808x3453. Please, how do I resolve this.

I'm probably not going to help much. 
Does it help if the image and project are in the same CRS (datm/projection)?

Otherwise, some more information will help. 
Does QGIS give any more error message?
Which version of QGIS are you using?
Which OS?
Are you trying to do this through GDAL tools ( the raster menu) or some other 
way?

-ramon. 
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Re: [Qgis-user] (no subject)

[Ing. Juan M. Bernales]

OS= Operative System

From: Clinton E-Davidson 
Sent: Sunday, September 02, 2012 4:01 PM
To: Ramon Andiñach 
Cc: Qgis-user@lists.osgeo.org 
Subject: Re: [Qgis-user] (no subject)

Thanks Ramon,

I,m using the latest qgis 1.8

there is no other error message and Im using the Gdal tools. I dont understand 
OS.


Thanks again.


Clint




From: Ramon Andiñach cust...@westnet.com.au
To: Qgis-user@lists.osgeo.org Qgis-user@lists.osgeo.org 
Sent: Sunday, September 2, 2012 3:38 AM
Subject: Re: [Qgis-user] (no subject)



On 01/09/2012, at 22:34, Clinton E-Davidson clidnel...@yahoo.com wrote:


  Pls I'm a new user and trying to create a subset on my raster but I get the 
following: Computed -srcwin falls outside raster size of (1 x 1) 2808x3453. 
Please, how do I resolve this.


I'm probably not going to help much. 
Does it help if the image and project are in the same CRS (datm/projection)?

Otherwise, some more information will help. 
Does QGIS give any more error message?
Which version of QGIS are you using?
Which OS?
Are you trying to do this through GDAL tools ( the raster menu) or some other 
way?

-ramon. 

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Re: [Qgis-user] (no subject)

[Ramon Andiñach]

On 01/09/2012, at 22:34, Clinton E-Davidson clidnel...@yahoo.com wrote:

 Pls I'm a new user and trying to create a subset on my raster but I get the 
 following: Computed -srcwin falls outside raster size of 2808x3453. Please, 
 how do I resolve this.

I'm probably not going to help much. 
Does it help if the image and project are in the same CRS (datm/projection)?

Otherwise, some more information will help. 
Does QGIS give any more error message?
Which version of QGIS are you using?
Which OS?
Are you trying to do this through GDAL tools ( the raster menu) or some other 
way?

-ramon. ___
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Re: [Qgis-user] (no subject)

[Andreas Neumann]

You have to decide for one zone and then you can reproject data from 
the other zone. QGis does it automatically on the fly (your data stays 
in the original projection).


You could also decide to reproject data from both zones to a different 
projection.


Have a look at the project settings and enable On the fly 
reprojection. Also make sure your input data has the proper projection 
information assigned.


Hope this helps,
Andreas

On Thu, 28 Jun 2012 05:02:39 -0500, Sergio Zárate wrote:

Message: 1
 Date: Wed, 27 Jun 2012 23:11:20 -0300
 From: Marcos
 To: qgis-user@lists.osgeo.org [2]
 Subject: [Qgis-user] Serious doubt
 Message-ID:
        
 Content-Type: text/plain; charset=iso-8859-1

Hello list,

Somebody knows a way to put together two different zones projected on
UTM
 at the same project on QGis?
 I?m trying to find some documentation, but, at the moment, nothing.

Thanks in advance,

--
 Marcos Eichemberger Ummus
 Tel.: +55 11 8059-8091

*
 *

Interesting questionb. I do not know how, but if needed, I have done
it by selecting the UTM zone of your preference within which you want
to merge together in a map (e.g., zone 13 and 14 North), and 
represent

them slanted on the fly. Yet, how does Google Earth do that and get
a flat map?  --
Dr. Sergio Zárate Pedroche
José María Arroyo 228
Col. 22 de octubre
Morelia, Michoacán
C.P. 58341
México

Teléfono: (443) 352-5307
Celular: (443)  438-6212


Links:
--
[1] mailto:marcos.um...@gmail.com
[2] mailto:qgis-user@lists.osgeo.org
[3]

mailto:cahqzexezpwkeekjxvjnzc%2bnqgnnp0o%2bwp_cghzw0v28wfjm...@mail.gmail.com


--
--
Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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Re: [Qgis-user] (no subject)

[Andreas Neumann]

Hi Steven,

The mailinglists are do it yourself. Go to 
http://lists.osgeo.org/mailman/listinfo/qgis-user and to the very bottom 
of the page. Enter your email address and press Unsubscribe or Edit 
Options -- follow the instructions.


Andreas

On Fri, 30 Mar 2012 11:59:32 +0300, Steven Kounis wrote:

REMOVE ME FROM THIS MAILING LIST PLEASE

--
Κουνής Στέφανος - Steven Kounis
Πτυχιούχος Μηχανικός Γεωπληροφορικής
και Τοπογραφίας - Geomatics  Surveying
Λιάσκα 9 Χαλκίδα
Tel : 6973856793 - 2221082822
 Skype : stkounis
www.kounis.gr [1],
stkou...@gmail.com [2]


Links:
--
[1] http://www.kounis.gr
[2] mailto:stkou...@gmail.com


--
--
Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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Re: [Qgis-user] (no subject)

[Paolo Cavallini]

Il 13/03/2012 23:59, Alister Hood ha scritto:

 Recent examples I can think of are the Contour plugin (I think its 
 dependencies
 are available now, after the switch to Python 2.7 in OSGeo4W), and the 
 plugin(s?)
 that require Rpy or whatever it is that isn't available since the switch to 
 Python
 2.7.  And for a long time before that on Windows some of the plugins that 
 used R
 (I'm not sure if they're the same ones which can't be used now) could only be 
 used
 with quite an old version of R.

Contour plugin is deprecated, as its functionality is now included in the raster
menu. Rpy2 is a known upstream problem.

 I remember several other examples, but the details
 don't spring to mind.

Please do not spread FUD. A missing lib is a rather exceptional occurrence, and
happens mostly with a few experimental plugins.

 It might not be.  But if you think people don't generally report bugs on 
 windows,
 who knows?

I run tens of courses, with hundreds of users, mostly on Win. So I should know.

 Actually, in the past when I used the OSGeo4W packages I had even more 
 crashes on
 that Windows 7 machine, so I'm wondering if there's something wrong with the
 machine...

Probably it's a local problem.
All the best.
-- 
Paolo Cavallini - Faunalia
www.faunalia.eu
Full contact details at www.faunalia.eu/pc
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Re: [Qgis-user] (no subject)

[Paolo Cavallini]

Il 12/03/2012 22:23, Alister Hood ha scritto:

 1. It is common for QGIS plugins to have dependencies which are not readily
 available for Windows (you may need to put in the effort to build them 
 yourself).

Not so common: can you provide examples?

 2. Plugins sometimes have Windows related problems.  I guess some of the
 developers don't do much testing for Windows.

I do not think this is a widespread phenomenon.

 4. There seems to be a reasonable history of issues with QGIS that only 
 appear on
 Windows, particularly problems with printing.  Again, I think this is due to 
 the
 developers not using windows.

I would say many Win users do not report and follow bugs, and they are not used
helping (by coding or by sponsoring) to fix them.

 5. FWIW I get a reasonable number of crashes when I try to run QGIS on 64 bit
 Windows 7, and none on 32bit Windows XP.  I do always run a self-compiled (on 
 XP)
 master version of QGIS, not an official build, but I don't really see why that
 would affect running on 64bit Windows 7.  As you have seen though, some people
 report no trouble on Windows 7. 

I think these are local (compilation) problems. I use regularly qgis on a 
variety of
win machines for courses, and I do not encounter major problems.

All the best.
-- 
Paolo Cavallini - Faunalia
www.faunalia.eu
Full contact details at www.faunalia.eu/pc
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Re: [Qgis-user] (no subject)

[Giovanni Manghi]

Hi,

  2. Plugins sometimes have Windows related problems.  I guess some of the
  developers don't do much testing for Windows.
 
 I do not think this is a widespread phenomenon.



I agree. There are evidences of the contrary, for example many plugins
that have GUIs that are developed under Windows and render bad under
Linux and OsX.



  4. There seems to be a reasonable history of issues with QGIS that only 
  appear on
  Windows, particularly problems with printing.  Again, I think this is due 
  to the
  developers not using windows.
 
 I would say many Win users do not report and follow bugs, and they are not 
 used
 helping (by coding or by sponsoring) to fix them.


The printing issue (of large layouts) is a known regression (used to
work fine on qgis 1.6), but again I agree with Paolo.




  5. FWIW I get a reasonable number of crashes when I try to run QGIS on 64 
  bit
  Windows 7, and none on 32bit Windows XP.  I do always run a self-compiled 
  (on XP)
  master version of QGIS, not an official build, but I don't really see why 
  that
  would affect running on 64bit Windows 7.  As you have seen though, some 
  people
  report no trouble on Windows 7. 

I use regularly QGIS on a Windows 7 64bit virtual machine and I don't
see much differences when compared to Windows 32bit.

cheers

-- Giovanni --

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Re: [Qgis-user] (no subject)

[Alister Hood]

 Date: Tue, 13 Mar 2012 16:40:11 +0100
 From: Paolo Cavallini cavall...@faunalia.it
 Subject: Re: [Qgis-user] (no subject)
 To: qgis-user@lists.osgeo.org
 Message-ID: 4f5f6a5b.60...@faunalia.it
 Content-Type: text/plain; charset=ISO-8859-1
 
 Il 12/03/2012 22:23, Alister Hood ha scritto:
 
  1. It is common for QGIS plugins to have dependencies which are not
  readily available for Windows (you may need to put in the effort to
 build them yourself).
 
 Not so common: can you provide examples?

Sure, I guess it all depends on what you consider to be common.  I certainly 
haven't seen this problem with _most_ plugins, but it is more than just one or 
two.

Recent examples I can think of are the Contour plugin (I think its dependencies 
are available now, after the switch to Python 2.7 in OSGeo4W), and the 
plugin(s?) that require Rpy or whatever it is that isn't available since the 
switch to Python 2.7.  And for a long time before that on Windows some of the 
plugins that used R (I'm not sure if they're the same ones which can't be used 
now) could only be used with quite an old version of R.
I remember several other examples, but the details don't spring to mind.

There's also the point that on Windows if a plugin has an unusual dependency 
you have to actually go looking for a Windows package, rather than just 
installing it from your distro's package manager.  And I've tried a number of 
plugins with python dependencies that you have to install by manually 
extracting files into the right place from a Windows installer package.  This 
isn't particularly user friendly ;)

  2. Plugins sometimes have Windows related problems.  I guess some of
  the developers don't do much testing for Windows.
 
 I do not think this is a widespread phenomenon.

It might not be.  But if you think people don't generally report bugs on 
windows, who knows?

  4. There seems to be a reasonable history of issues with QGIS that
  only appear on Windows, particularly problems with printing.  Again, I
  think this is due to the developers not using windows.
 
 I would say many Win users do not report and follow bugs, and they are not
 used helping (by coding or by sponsoring) to fix them.

Yes, I guess that's the other contributing factor.

  5. FWIW I get a reasonable number of crashes when I try to run QGIS on
  64 bit Windows 7, and none on 32bit Windows XP.  I do always run a
  self-compiled (on XP) master version of QGIS, not an official build,
  but I don't really see why that would affect running on 64bit Windows
  7.  As you have seen though, some people report no trouble on Windows 7.
 
 I think these are local (compilation) problems. I use regularly qgis on a
 variety of win machines for courses, and I do not encounter major
 problems.

Actually, in the past when I used the OSGeo4W packages I had even more crashes 
on that Windows 7 machine, so I'm wondering if there's something wrong with the 
machine...
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Re: [Qgis-user] (no subject)

[Giovanni Manghi]

 
 How do I best work with layers in different CRS?


are you using layers from the openlayers plugin? if yes, then you must
reproject everything in the google mercator CRS.

cheers

-- Giovanni --


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RE: [Qgis-user] (no subject)

[Jake Maier]

Thank you Giovanni,
Does that mean I cannot load openlayers maps and WMS maps at the same time. The 
only option I seem to have for the WMS maps is WGS 84 and UTM zone 19, or is 
there a way to display both within the same project?
Thanks very much for all your work on the list
Jake

-Original Message-
From: Giovanni Manghi [mailto:giovanni.man...@faunalia.pt] 
Sent: Friday, March 09, 2012 9:41 AM
To: Jake Maier
Cc: Qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] (no subject)


 
 How do I best work with layers in different CRS?


are you using layers from the openlayers plugin? if yes, then you must 
reproject everything in the google mercator CRS.

cheers

-- Giovanni --


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RE: [Qgis-user] (no subject)

[Giovanni Manghi]

Hi Jake,


 Does that mean I cannot load openlayers maps and WMS maps at the same time.

no, it means that the layers from the OL plugin are not reprojectable,
so you must reproject everything else in their own CRS, google mercator.

cheers

-- Giovanni --

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RE: [Qgis-user] (no subject)

[Jake Maier]

It looks now to me that all layers always loaded correctly. What seems to be 
the problem is that I cannot get Google Streets or OpenstreetMap to display. 
Both these layers were placed underneath the shp and the NAIP (WMS) maps. 
Turning off the NAIP layer should activate the Google Street map, which is 
directly under the NAIP layer and turned on, but I cannot get it to display. I 
turned the layer on and off, and checked and unchecked (repeatedly) the render 
button. But nothing happens. When I zoomed into the map, the complete google 
streets displays, which is odd because by zooming in it actually zoomed out. 
Maybe this is a bug?
Jake

-Original Message-
From: Giovanni Manghi [mailto:giovanni.man...@faunalia.pt] 
Sent: Friday, March 09, 2012 11:10 AM
To: Jake Maier
Cc: Qgis-user@lists.osgeo.org
Subject: RE: [Qgis-user] (no subject)

Hi Jake,


 Does that mean I cannot load openlayers maps and WMS maps at the same time.

no, it means that the layers from the OL plugin are not reprojectable, so you 
must reproject everything else in their own CRS, google mercator.

cheers

-- Giovanni --

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RE: [Qgis-user] (no subject)

[Gerardo Jimenez]

how do I convert polylines to polygons?

Go to Vector/Geometry tools/Lines to polygons. There is also a plugin 
(poligonizer)  with this function. A word of advice, your polylines must 
begin/end on common nodes

Hope it helps

Gerardo Jiménez Delgado
Instituto de Investigaciones Antropológicas
Universidad Nacional Autónoma de México
Ciudad Universitaria s/n
Coyoacan 04510
Mexico City
Mexico

56 22 95 16

 Date: Wed, 21 Dec 2011 19:31:31 +0100
 From: davide.damato_1...@libero.it
 To: qgis-user@lists.osgeo.org
 Subject: [Qgis-user] (no subject)
 
 come faccio a trasformare linee spezzate in poligoni?
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Re: [Qgis-user] (no subject)

[Giovanni Manghi]

  
 I think you should try using the pluging eVIS
 (http://www.qgis.org/wiki/File:How_to_geosetter_eVis_view_geoloc_photos.pdf)

or the photo2shape plugin

cheers

-- Giovanni --

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Re: [Qgis-user] (no subject)

[Carlos Carbajal]

El 21/11/2011 02:44 p.m., MONJARAZ escribió:
Hello Am user principiante of Qgis, finish to buy a gps magellan 
explorists 610 which allows to take fotografias that remain 
georeferenciadas. My question is if there is algun complement or as 
they can  associate etas photos to a project of Quantum



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Hello,
I think you should try using the pluging eVIS  
(http://www.qgis.org/wiki/File:How_to_geosetter_eVis_view_geoloc_photos.pdf)



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Re: [Qgis-user] (no subject)

[Werner Macho]

Hi!
I only opened the conc2.dbf with normal Add Vector Layer - no
problems .. all data in the attribute table ..

sorry - no GRASS plugin here .. - are you forced to use v.in.db?

regards
Werner

On Fri, 2011-03-25 at 17:03 +0100, muss...@alice.it wrote:
 Hi
 my new Quantum GIS 1.6.0, when I try to use v.in.db, say : DBMI-DBF driver 
 error:
 Cannot open dbf database: D:/Quantum GIS Copiapo/conc2.dbf 
 Unable to 
 open database by driver 
 
 The problem is in my file? (I attach it)
 
 Tanks a 
 lot.
 Gianluca Mussetti
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Re: [Qgis-user] (no subject)

[Leonardo Lami]

Hi,
for me no problem, ecxept for the type of field ID. It's float, but it 
has to be integer if you use it to create the key column in the GRASS 
vector.


This is the test command used:

v.in.db database=/home/leo/prove/ table=conc2 driver=dbf x=X y=Y key=ID2 
output=conc2



regards
Leonardo




Il 25/03/2011 17:03, muss...@alice.it ha scritto:

Hi
my new Quantum GIS 1.6.0, when I try to use v.in.db, say : DBMI-DBF driver
error:
Cannot open dbf database: D:/Quantum GIS Copiapo/conc2.dbf
Unable to
open database by driver 

The problem is in my file? (I attach it)

Tanks a
lot.
Gianluca Mussetti


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--
Leonardo Lami
Cell: 349 1310164
E-mail: l...@gis3w.it
Web: www.gis3w.it

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