Re: [Qgis-user] Error in Zonal statistic ?

2020-05-07 Thread Lene Fischer 
Ahh that might explain the situation. It just 44 pixels – and with the very 
long decimal – they are for sure all different.
I might shorten the decimals.
Thanks


Lene Fischer
From: Pedro Venâncio 
Sent: 7. maj 2020 12:07
To: Lene Fischer 
Cc: qgis-user 
Subject: Re: [Qgis-user] Error in Zonal statistic ?

Hi Lene,

Can you share a sample dataset?

I think it can be possible if the pixels have all different values, and so, 
Zonal Statistics choose the minimum value as minority and majority, but it 
could choose any other value, because any pixel value can be considered the 
less and most represented, as they are all different.

Best regards,
Pedro Venâncio

A quinta, 7/05/2020, 09:34, Lene Fischer 
mailto:l...@ign.ku.dk>> escreveu:
Hi
I´m trying to calculate values in multi spectral images.
When I use Zonal statistic I get the same result for _min, _minority and 
_majority
Example:


fid

_count

_mean

_median

_min

_max

_minority

_majority



57

44

0.06883086238733747

0.06847017258405685

0.062062818557024

0.07621321827173233

0.062062818557024

0.062062818557024


Can you confirm this error – then I´ll make a bugreport ☺

Regards


Lene Fischer
Associate Professor

University of Copenhagen
Department of Geosciences and Natural Resource Management
Forest and Landscape College
Nødebovej 77a
3480 Fredensborg

MOB +45 40115084
l...@ign.ku.dk


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Re: [Qgis-user] "Oops! No help available"

2020-05-07 Thread Thomas Schüttenberg 
Hi Richard,
thanks for your suggestions.
I tested with QGIS versions 3.4.12, 3.10.5, 3.12.1, 3.13.0 and the results are 
all the same:

1) QDesktopServices.openUrl(QUrl(... from the Python console works allways, 
opens in the browser.
2) Menu Help (F1) or any other Help-button in a dialog gives me the turning 
hourglass followed by nohelp.html

Resolving the helpPath variables 
https://docs.qgis.org/$qgis_short_version/$qgis_locale/docs/user_manual/ in the 
systems settings has no effect. 
Using http:// or https:// also makes no difference.

It is absolutely possible that it is a local problem, but I have no clue.

Cheers
Thomas

> Richard Duivenvoorde  hat am 7. Mai 2020 12:47 
> geschrieben:
> 
>  
> Hi Thomas,
> 
> Which QGIS version are you trying?
> 
> With me for example if I run 3.10 I I go to the WMS-dialog and push the
> button there, I see in (I have a debug build on Linux) in the log output:
> 
> Trying to open help using key
> 'working_with_ogc/ogc_client_support.html'. Full URI is
> 'https://docs.qgis.org/3.10/en/docs/user_manual/working_with_ogc/ogc_client_support.html'…
> 
> 3.12 shows:
> 
> Trying to open help using key
> 'working_with_ogc/ogc_client_support.html'. Full URI is
> 'https://docs.qgis.org/3.12/en/docs/user_manual/working_with_ogc/ogc_client_support.html'…
> 
> And those are then (serverside) being redirected to 'testing':
> 
> https://docs.qgis.org/testing/en/docs/user_manual/working_with_ogc/ogc_client_support.html
> 
> Code for this is around here:
> 
> https://github.com/qgis/QGIS/blob/master/src/gui/qgshelp.cpp#L81-L178
> 
> It tests if it is a valid url en and then uses Qt-Desktop-services tools
> to open it:
> 
> https://github.com/qgis/QGIS/blob/master/src/gui/qgshelp.cpp#L38
> 
> You should be able to test this in the Python console:
> 
> QDesktopServices.openUrl(QUrl('https://docs.qgis.org/3.12/en/docs/user_manual/working_with_ogc/ogc_client_support.html'))
> 
> Is that opening you browser with:
> 
> https://docs.qgis.org/testing/en/docs/user_manual/working_with_ogc/ogc_client_support.html
> ?
> 
> Because this is vanilla Qt, I would think that it will use your proxy
> settings... It is NOT using/going through QNetworkAccessManager, so the
> Network Logging plugin will not pick it up.
> 
> Regards,
> 
> Richard Duivenvoorde
> 
> 
> 
> 
> 
> 
> 
> On 5/7/20 11:55 AM, Thomas Schüttenberg wrote:
> > Hi!
> > Unfortunately I constantly face the issue, that the QGIS help is not 
> > retrievable here from my office pc (windows), I only get the "Oops no help 
> > available" site and (most likely) a timeout. This affects at least any QGIS 
> > 3.x version so far. No matter if the options setting HELP_LOCATION is set 
> > to the default path or an explicit url without variables. - At home (no 
> > proxy at all; ubuntu) it works though!
> > 
> > First thing you think is certaily: bad proxy. But the proxy setting (ever 
> > since) is "use DefaultProxy", which works for any other part of QGIS, 
> > including open github pages in browser (chrome) from the add plugin dialog 
> > (if that is comparable).
> > 
> > I was not able to pick up the request in the browser, because it opens a 
> > new browser tab. I also tried the Network Logging plugin to get some 
> > insight, but it did not show anything, maybe it does not listen to such 
> > requests.
> > 
> > Does anybody has a tip for me?
> > 
> > Cheers
> > Thomas
> > ___
> > 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] "Oops! No help available"

2020-05-07 Thread Harrissou 
Hi all,

While talking about redirection server side, can you redirect 3.5 to 3.9 
releases to 3.10 docs, please? Seems they don't.
Sorry to hijack.

Greetings,
Harrissou

Le 7 mai 2020 12:56:23 GMT+02:00, Richard Duivenvoorde  a 
écrit :
>One thing I experienced at a site once: Qt is pretty picky about
>certificates... So if the proxy is over https, and they for example use
>an self-signed or unvalid certificate, that will fail.
>Then the python test I added probably will tell you?
>
>Regards,
>
>Richard
>
>On 5/7/20 12:47 PM, Richard Duivenvoorde wrote:
>> Hi Thomas,
>> 
>> Which QGIS version are you trying?
>> 
>> With me for example if I run 3.10 I I go to the WMS-dialog and push
>the
>> button there, I see in (I have a debug build on Linux) in the log
>output:
>> 
>> Trying to open help using key
>> 'working_with_ogc/ogc_client_support.html'. Full URI is
>>
>'https://docs.qgis.org/3.10/en/docs/user_manual/working_with_ogc/ogc_client_support.html'…
>> 
>> 3.12 shows:
>> 
>> Trying to open help using key
>> 'working_with_ogc/ogc_client_support.html'. Full URI is
>>
>'https://docs.qgis.org/3.12/en/docs/user_manual/working_with_ogc/ogc_client_support.html'…
>> 
>> And those are then (serverside) being redirected to 'testing':
>> 
>>
>https://docs.qgis.org/testing/en/docs/user_manual/working_with_ogc/ogc_client_support.html
>> 
>> Code for this is around here:
>> 
>> https://github.com/qgis/QGIS/blob/master/src/gui/qgshelp.cpp#L81-L178
>> 
>> It tests if it is a valid url en and then uses Qt-Desktop-services
>tools
>> to open it:
>> 
>> https://github.com/qgis/QGIS/blob/master/src/gui/qgshelp.cpp#L38
>> 
>> You should be able to test this in the Python console:
>> 
>>
>QDesktopServices.openUrl(QUrl('https://docs.qgis.org/3.12/en/docs/user_manual/working_with_ogc/ogc_client_support.html'))
>> 
>> Is that opening you browser with:
>> 
>>
>https://docs.qgis.org/testing/en/docs/user_manual/working_with_ogc/ogc_client_support.html
>> ?
>> 
>> Because this is vanilla Qt, I would think that it will use your proxy
>> settings... It is NOT using/going through QNetworkAccessManager, so
>the
>> Network Logging plugin will not pick it up.
>> 
>> Regards,
>> 
>> Richard Duivenvoorde
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> On 5/7/20 11:55 AM, Thomas Schüttenberg wrote:
>>> Hi!
>>> Unfortunately I constantly face the issue, that the QGIS help is not
>retrievable here from my office pc (windows), I only get the "Oops no
>help available" site and (most likely) a timeout. This affects at least
>any QGIS 3.x version so far. No matter if the options setting
>HELP_LOCATION is set to the default path or an explicit url without
>variables. - At home (no proxy at all; ubuntu) it works though!
>>>
>>> First thing you think is certaily: bad proxy. But the proxy setting
>(ever since) is "use DefaultProxy", which works for any other part of
>QGIS, including open github pages in browser (chrome) from the add
>plugin dialog (if that is comparable).
>>>
>>> I was not able to pick up the request in the browser, because it
>opens a new browser tab. I also tried the Network Logging plugin to get
>some insight, but it did not show anything, maybe it does not listen to
>such requests.
>>>
>>> Does anybody has a tip for me?
>>>
>>> Cheers
>>> Thomas
>>> ___
>>> 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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>
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Re: [Qgis-user] "Oops! No help available"

2020-05-07 Thread Richard Duivenvoorde 
One thing I experienced at a site once: Qt is pretty picky about
certificates... So if the proxy is over https, and they for example use
an self-signed or unvalid certificate, that will fail.
Then the python test I added probably will tell you?

Regards,

Richard

On 5/7/20 12:47 PM, Richard Duivenvoorde wrote:
> Hi Thomas,
> 
> Which QGIS version are you trying?
> 
> With me for example if I run 3.10 I I go to the WMS-dialog and push the
> button there, I see in (I have a debug build on Linux) in the log output:
> 
> Trying to open help using key
> 'working_with_ogc/ogc_client_support.html'. Full URI is
> 'https://docs.qgis.org/3.10/en/docs/user_manual/working_with_ogc/ogc_client_support.html'…
> 
> 3.12 shows:
> 
> Trying to open help using key
> 'working_with_ogc/ogc_client_support.html'. Full URI is
> 'https://docs.qgis.org/3.12/en/docs/user_manual/working_with_ogc/ogc_client_support.html'…
> 
> And those are then (serverside) being redirected to 'testing':
> 
> https://docs.qgis.org/testing/en/docs/user_manual/working_with_ogc/ogc_client_support.html
> 
> Code for this is around here:
> 
> https://github.com/qgis/QGIS/blob/master/src/gui/qgshelp.cpp#L81-L178
> 
> It tests if it is a valid url en and then uses Qt-Desktop-services tools
> to open it:
> 
> https://github.com/qgis/QGIS/blob/master/src/gui/qgshelp.cpp#L38
> 
> You should be able to test this in the Python console:
> 
> QDesktopServices.openUrl(QUrl('https://docs.qgis.org/3.12/en/docs/user_manual/working_with_ogc/ogc_client_support.html'))
> 
> Is that opening you browser with:
> 
> https://docs.qgis.org/testing/en/docs/user_manual/working_with_ogc/ogc_client_support.html
> ?
> 
> Because this is vanilla Qt, I would think that it will use your proxy
> settings... It is NOT using/going through QNetworkAccessManager, so the
> Network Logging plugin will not pick it up.
> 
> Regards,
> 
> Richard Duivenvoorde
> 
> 
> 
> 
> 
> 
> 
> On 5/7/20 11:55 AM, Thomas Schüttenberg wrote:
>> Hi!
>> Unfortunately I constantly face the issue, that the QGIS help is not 
>> retrievable here from my office pc (windows), I only get the "Oops no help 
>> available" site and (most likely) a timeout. This affects at least any QGIS 
>> 3.x version so far. No matter if the options setting HELP_LOCATION is set to 
>> the default path or an explicit url without variables. - At home (no proxy 
>> at all; ubuntu) it works though!
>>
>> First thing you think is certaily: bad proxy. But the proxy setting (ever 
>> since) is "use DefaultProxy", which works for any other part of QGIS, 
>> including open github pages in browser (chrome) from the add plugin dialog 
>> (if that is comparable).
>>
>> I was not able to pick up the request in the browser, because it opens a new 
>> browser tab. I also tried the Network Logging plugin to get some insight, 
>> but it did not show anything, maybe it does not listen to such requests.
>>
>> Does anybody has a tip for me?
>>
>> Cheers
>> Thomas
>> ___
>> 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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> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
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Re: [Qgis-user] "Oops! No help available"

2020-05-07 Thread Richard Duivenvoorde 
Hi Thomas,

Which QGIS version are you trying?

With me for example if I run 3.10 I I go to the WMS-dialog and push the
button there, I see in (I have a debug build on Linux) in the log output:

Trying to open help using key
'working_with_ogc/ogc_client_support.html'. Full URI is
'https://docs.qgis.org/3.10/en/docs/user_manual/working_with_ogc/ogc_client_support.html'…

3.12 shows:

Trying to open help using key
'working_with_ogc/ogc_client_support.html'. Full URI is
'https://docs.qgis.org/3.12/en/docs/user_manual/working_with_ogc/ogc_client_support.html'…

And those are then (serverside) being redirected to 'testing':

https://docs.qgis.org/testing/en/docs/user_manual/working_with_ogc/ogc_client_support.html

Code for this is around here:

https://github.com/qgis/QGIS/blob/master/src/gui/qgshelp.cpp#L81-L178

It tests if it is a valid url en and then uses Qt-Desktop-services tools
to open it:

https://github.com/qgis/QGIS/blob/master/src/gui/qgshelp.cpp#L38

You should be able to test this in the Python console:

QDesktopServices.openUrl(QUrl('https://docs.qgis.org/3.12/en/docs/user_manual/working_with_ogc/ogc_client_support.html'))

Is that opening you browser with:

https://docs.qgis.org/testing/en/docs/user_manual/working_with_ogc/ogc_client_support.html
?

Because this is vanilla Qt, I would think that it will use your proxy
settings... It is NOT using/going through QNetworkAccessManager, so the
Network Logging plugin will not pick it up.

Regards,

Richard Duivenvoorde







On 5/7/20 11:55 AM, Thomas Schüttenberg wrote:
> Hi!
> Unfortunately I constantly face the issue, that the QGIS help is not 
> retrievable here from my office pc (windows), I only get the "Oops no help 
> available" site and (most likely) a timeout. This affects at least any QGIS 
> 3.x version so far. No matter if the options setting HELP_LOCATION is set to 
> the default path or an explicit url without variables. - At home (no proxy at 
> all; ubuntu) it works though!
> 
> First thing you think is certaily: bad proxy. But the proxy setting (ever 
> since) is "use DefaultProxy", which works for any other part of QGIS, 
> including open github pages in browser (chrome) from the add plugin dialog 
> (if that is comparable).
> 
> I was not able to pick up the request in the browser, because it opens a new 
> browser tab. I also tried the Network Logging plugin to get some insight, but 
> it did not show anything, maybe it does not listen to such requests.
> 
> Does anybody has a tip for me?
> 
> Cheers
> Thomas
> ___
> 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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[Qgis-user] "Oops! No help available"

2020-05-07 Thread Thomas Schüttenberg 
Hi!
Unfortunately I constantly face the issue, that the QGIS help is not 
retrievable here from my office pc (windows), I only get the "Oops no help 
available" site and (most likely) a timeout. This affects at least any QGIS 3.x 
version so far. No matter if the options setting HELP_LOCATION is set to the 
default path or an explicit url without variables. - At home (no proxy at all; 
ubuntu) it works though!

First thing you think is certaily: bad proxy. But the proxy setting (ever 
since) is "use DefaultProxy", which works for any other part of QGIS, including 
open github pages in browser (chrome) from the add plugin dialog (if that is 
comparable).

I was not able to pick up the request in the browser, because it opens a new 
browser tab. I also tried the Network Logging plugin to get some insight, but 
it did not show anything, maybe it does not listen to such requests.

Does anybody has a tip for me?

Cheers
Thomas
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Re: [Qgis-user] Error in Zonal statistic ?

2020-05-07 Thread Pedro Venâncio 
Hi Lene,

Can you share a sample dataset?

I think it can be possible if the pixels have all different values, and so,
Zonal Statistics choose the minimum value as minority and majority, but it
could choose any other value, because any pixel value can be considered the
less and most represented, as they are all different.

Best regards,
Pedro Venâncio

A quinta, 7/05/2020, 09:34, Lene Fischer  escreveu:

> Hi
>
> I´m trying to calculate values in multi spectral images.
>
> When I use Zonal statistic I get the same result for _min, _minority and
> _majority
>
> Example:
>
>
>
> fid
>
> _count
>
> _mean
>
> _median
>
> _min
>
> _max
>
> _minority
>
> _majority
>
>
>
> 57
>
> 44
>
> 0.06883086238733747
>
> 0.06847017258405685
>
> 0.062062818557024
>
> 0.07621321827173233
>
> 0.062062818557024
>
> 0.062062818557024
>
>
>
> Can you confirm this error – then I´ll make a bugreport J
>
>
>
> Regards
>
>
>
>
>
> *Lene Fischer*
>
> Associate Professor
>
>
>
> *University of Copenhagen*
>
> Department of Geosciences and Natural Resource Management
>
> Forest and Landscape College
>
> Nødebovej 77a
>
> 3480 Fredensborg
>
>
>
> MOB +45 40115084
>
> l...@ign.ku.dk
>
>
>
>
> ___
> 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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[Qgis-user] Error in Zonal statistic ?

2020-05-07 Thread Lene Fischer 
Hi
I´m trying to calculate values in multi spectral images.
When I use Zonal statistic I get the same result for _min, _minority and 
_majority
Example:


fid

_count

_mean

_median

_min

_max

_minority

_majority



57

44

0.06883086238733747

0.06847017258405685

0.062062818557024

0.07621321827173233

0.062062818557024

0.062062818557024


Can you confirm this error - then I´ll make a bugreport :)

Regards


Lene Fischer
Associate Professor

University of Copenhagen
Department of Geosciences and Natural Resource Management
Forest and Landscape College
Nødebovej 77a
3480 Fredensborg

MOB +45 40115084
l...@ign.ku.dk


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Re: [Qgis-user] combining fragmented forests

2020-05-07 Thread Frank Broniewski 

Hi Reiko,

another idea might be to use a buffer to stitch polygons together. Use a 
small buffer value and choose to dissolve the resulting polygons. That 
method does not however preserve meaningful attribute values.


Let's know how your progress goes,
Frank

Am 06.05.20 um 20:55 schrieb RMG:

Hello,

I have five shapefiles that contain thousands of fragmented forests that 
I created from a NDVI raster of a large protected area in West Africa, 
which I separated into five panels. Now, how do I stitch thousands of 
the fragmented forests at the borders?


Each shapefile's attributes have ID, count (number of units), area, and 
perimeter, so I can visually recognize which fragments need stitching, 
but because there are so many, I don't think I can do it manually.


Any help would be appreciated.

Best wishes,


Reiko Matsuda Goodwin
Comoé Monkey Project 
Guenon Conservation Community 





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