Re: [Qgis-user] Toggle Attribute

[Richard Duivenvoorde]

Hi Mike,

I did some fiddling with the 'Create default actions' that you can load.

One thing that was not obvious to me, is that you need to set the 'Action 
Scope'. So be sure it has 'Feature Scope'(or Canvas scope?) if you want to 
click somewhere in the mapcanvas.

With me selecting one of the possible actions in the Actions button in the 
toolbar makes it color change from blue to green.

Then there is the option to set some kind of order in the 'Actions'-list of the 
layer.

For what I see there is no need to use the identify tool. Only if you want the 
actions to show up in the Identify Results as a clickable Actions button (I 
think(!) it has to do with the 'Field'-scope).

But it's not very clear to me how this all works together to be honest.
There is some doc here:

https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#actions-properties

There is also a 'lesson' in the Training Manual:

https://docs.qgis.org/testing/en/docs/training_manual/create_vector_data/actions.html?highlight=actions

HTH & Regards,

Richard Duivenvoorde



On 11/24/20 2:21 AM, Mike Flannigan wrote:
> 
> Thank you.  I did get an Action to operate today.  My action also
> uses a Google Maps link.
> 
> I can click on "Identify Features", which opens a "Identify Results"
> panel.  Then I can click on a feature in that layer, open Actions
> in the "Identify Results" panel, and click on the action, which
> runs the action.
> 
> Now I'm trying to make the action more accessible.  Am I correct
> in my assumption that the button just to the right of "Identify Features"
> should list my Action in the dropdown list?  So list stuff like this:
> http://www.mflan.com/temp/action1.jpg
> Figure 5 was taken from:
> https://www.geodose.com/2018/04/qgis-tutorial-how-to-create-action.html
> 
> When I click on that little black triangle on the button just to the right
> of "Identify Features" it shows an empty, white box.  When I click on the
> button is doesn't do anything.  When I hover over the button it says
> "no action selected".
> 
> Ideally I would like for the action to run if I just click on the feature.
> 
> 
> 
> Mike
> 
> 
> On 11/23/20 2:00 PM, qgis-user-requ...@lists.osgeo.org wrote:
>> Hi Mike,
>>
>> Just create an action with something like this to see it in action:
>>
>> https://www.google.pt/maps/@[% @click_x %],[% @click_y %]
>>
>> This will open google maps at the place you clicked. If you want to get
>> something from the action called, you have to capture its output (and
>> return the right value from your script).
>>
>> As Richard said, start with the default actions and you will see
>> different kinds of things that can be done with actions. Capturing the
>> clicked X,Y is straight forward.
>>
>> Jorge
> 
> 
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Re: [Qgis-user] QGIS 3.16.0 Rotate features

[Werner Macho]

Hi!

While I love to see QGIS being used for that purpose you might also
probably take a look at
https://www.openorienteering.org/apps/mapper/
which seems to be a opensource product dedicated directly to what you are doing.

Just wanted to bring that to your attention

regards

Werner

On Tue, Nov 24, 2020 at 8:10 AM  wrote:
>
> I am a first-time user of QGIS (3.16.0) for orienteering mapping. I have been 
> through the tutorials and have a reasonable plot from my GPS and sketched 
> field data, but now have to rotate the data to Magnetic North. I select all 
> my data, but the “Rotate Feature(s)” (and all the other “Move” buttons)  
> remains greyed and inoperative. After some looking, I can’t find where the 
> tutorials deal with this type of editing.
>
> Ideas please.
>
>
>
> Stuart Watt
> Email:  swa...@westnet.com.au
> Mobile:  0421 726 741
>
>
>
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Re: [Qgis-user] QGIS 3.16.0 Rotate features

[Dan]

Hi stewart, no need to rotate the data to magnetic north, do that in the 
composer.


Are you setting some maprun events out at Stanthorpe?

I have a QGIS template for creating maprun style maps from OSM data.

Dan

On 24/11/20 5:00 pm, swa...@westnet.com.au wrote:


I am a first-time user of QGIS (3.16.0) for orienteering mapping. I 
have been through the tutorials and have a reasonable plot from my GPS 
and sketched field data, but now have to rotate the data to Magnetic 
North. I select all my data, but the “Rotate Feature(s)” (and all the 
other “Move” buttons)  remains greyed and inoperative. After some 
looking, I can’t find where the tutorials deal with this type of editing.


Ideas please.

Stuart Watt
Email: swa...@westnet.com.au 
Mobile:  0421 726 741


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Re: [Qgis-user] QGIS 3.16.0 Rotate features

[Stefan Giese]

Hi Stuart,

can you secify your data format? is it GPX? Not all data formats are 
editable in QGIS. You can try with right mouse click on your data layer 
-> export -> save features as and then choose a format like shapefile or 
better geopackage...


bets regards

Stefan

Mit freundlichen Grüßen
Stefan Giese
Projektleiter/Consultant

Where2B Konferenz 2020
10. Dezember 2020 online
https://where2b-conference.com/

WhereGroup GmbH
Schwimmbadstr. 2
79100 Freiburg
Germany

Fon: +49 (0)761 / 519 102 - 61
Fax: +49 (0)761 / 519 102 - 11

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

Am 24.11.2020 um 08:00 schrieb swa...@westnet.com.au:


I am a first-time user of QGIS (3.16.0) for orienteering mapping. I 
have been through the tutorials and have a reasonable plot from my GPS 
and sketched field data, but now have to rotate the data to Magnetic 
North. I select all my data, but the “Rotate Feature(s)” (and all the 
other “Move” buttons)  remains greyed and inoperative. After some 
looking, I can’t find where the tutorials deal with this type of editing.


Ideas please.

Stuart Watt
Email: swa...@westnet.com.au 
Mobile:  0421 726 741


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[Qgis-user] QGIS 3.16.0 Rotate features

[swatt7]

I am a first-time user of QGIS (3.16.0) for orienteering mapping. I have
been through the tutorials and have a reasonable plot from my GPS and
sketched field data, but now have to rotate the data to Magnetic North. I
select all my data, but the "Rotate Feature(s)" (and all the other "Move"
buttons)  remains greyed and inoperative. After some looking, I can't find
where the tutorials deal with this type of editing.

Ideas please.

 

Stuart Watt
Email:  swa...@westnet.com.au  
Mobile:  0421 726 741

 

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Re: [Qgis-user] problem with RECLASSIFY (GRASS)

[chris hermansen]

Azzurra and list,

On Mon, Nov 23, 2020 at 4:04 PM Azzurra Lentini 
wrote:

> Hi Chris thanks for the answer.
> I thought it is an error because It doesn't give me a result: after the
> run it says the process couldn't ... And it does not give me an output!!
>

Hmm I'm not following that in the message; I see this:

*output=output919ef43aa43442ca92efb3893e3b9c33*

Looks like some kind of temporary file to me.  But anyway, wherever that
might be located on your system, I would think that would be your output.

>
> Anyway, I have installed right now qgis 3.16 and in this version it works!
>
> So maybe it was a problem in that qgis version.
>
> Thanks, Azzurra
>
> Il mar 24 nov 2020, 00:48 chris hermansen  ha
> scritto:
>
>> Azzurra and list,
>>
>> On Mon, Nov 23, 2020 at 1:09 PM Azzurra Lentini 
>> wrote:
>>
>>> Hi to all, I am trying to reclassify a RASTER file slope - DATA TYPE
>>> int32 (I have obtained it from a DTM and I have converted the data type
>>> using "translate" from data type float to INT32).
>>> But when I tried to reclassify using a rule
>>> 0 thru 50 = 1
>>> 51 thru 90 = 2
>>>  it gives thir error message:
>>>
>>> *2020-11-23T22:00:15 INFOprocessInputs end. Commands: ['g.proj
>>> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
>>> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
>>> band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
>>> s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
>>> *2020-11-23T22:00:15 INFOprocessCommands end. Commands: ['g.proj
>>> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
>>> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
>>> band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
>>> s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
>>> input=rast_5fbc22df0abd18
>>> rules="C:/Users/AZZURRAHYDRO/AppData/Roaming/QGIS/QGIS3/profiles/default/project_templates/processing_880301be01084a079edf4a3379b133ea\\5fbc22df0bb669"
>>> output=output919ef43aa43442ca92efb3893e3b9c33 --overwrite'] *
>>>
>>> When I tried to reclassify using an external .txt ( file containing the
>>> rules it gives the same message..):
>>>
>>> *2020-11-23T22:04:05 INFOprocessInputs end. Commands: ['g.proj
>>> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
>>> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
>>> band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
>>> s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
>>> *2020-11-23T22:04:05 INFOprocessCommands end. Commands: ['g.proj
>>> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
>>> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
>>> band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
>>> s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
>>> input=rast_5fbc23c5b84f411
>>> rules="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\SUSC\\INDslope_ROTsub.txt"
>>> output=outputc10364340554433aa78a4eda2a6bc0fb --overwrite']*
>>>
>>> Do you have any idea?
>>>
>>>
>> Why do you think this is an error?  It says "INFO", not "ERROR".
>>
>>
>> --
>> Chris Hermansen · clhermansen "at" gmail "dot" com
>>
>> C'est ma façon de parler.
>>
>

-- 
Chris Hermansen · clhermansen "at" gmail "dot" com

C'est ma façon de parler.
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Re: [Qgis-user] Toggle Attribute

[Mike Flannigan]

Thank you.  I did get an Action to operate today.  My action also
uses a Google Maps link.

I can click on "Identify Features", which opens a "Identify Results"
panel.  Then I can click on a feature in that layer, open Actions
in the "Identify Results" panel, and click on the action, which
runs the action.

Now I'm trying to make the action more accessible.  Am I correct
in my assumption that the button just to the right of "Identify Features"
should list my Action in the dropdown list?  So list stuff like this:
http://www.mflan.com/temp/action1.jpg
Figure 5 was taken from:
https://www.geodose.com/2018/04/qgis-tutorial-how-to-create-action.html

When I click on that little black triangle on the button just to the right
of "Identify Features" it shows an empty, white box.  When I click on the
button is doesn't do anything.  When I hover over the button it says
"no action selected".

Ideally I would like for the action to run if I just click on the feature.



Mike


On 11/23/20 2:00 PM, qgis-user-requ...@lists.osgeo.org wrote:

Hi Mike,

Just create an action with something like this to see it in action:

https://www.google.pt/maps/@[% @click_x %],[% @click_y %]

This will open google maps at the place you clicked. If you want to get
something from the action called, you have to capture its output (and
return the right value from your script).

As Richard said, start with the default actions and you will see
different kinds of things that can be done with actions. Capturing the
clicked X,Y is straight forward.

Jorge



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Re: [Qgis-user] problem with RECLASSIFY (GRASS)

[Azzurra Lentini]

Hi Chris thanks for the answer.
I thought it is an error because It doesn't give me a result: after the run
it says the process couldn't ... And it does not give me an output!!

Anyway, I have installed right now qgis 3.16 and in this version it works!

So maybe it was a problem in that qgis version.

Thanks, Azzurra

Il mar 24 nov 2020, 00:48 chris hermansen  ha
scritto:

> Azzurra and list,
>
> On Mon, Nov 23, 2020 at 1:09 PM Azzurra Lentini 
> wrote:
>
>> Hi to all, I am trying to reclassify a RASTER file slope - DATA TYPE
>> int32 (I have obtained it from a DTM and I have converted the data type
>> using "translate" from data type float to INT32).
>> But when I tried to reclassify using a rule
>> 0 thru 50 = 1
>> 51 thru 90 = 2
>>  it gives thir error message:
>>
>> *2020-11-23T22:00:15 INFOprocessInputs end. Commands: ['g.proj -c
>> proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
>> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
>> band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
>> s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
>> *2020-11-23T22:00:15 INFOprocessCommands end. Commands: ['g.proj
>> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
>> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
>> band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
>> s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
>> input=rast_5fbc22df0abd18
>> rules="C:/Users/AZZURRAHYDRO/AppData/Roaming/QGIS/QGIS3/profiles/default/project_templates/processing_880301be01084a079edf4a3379b133ea\\5fbc22df0bb669"
>> output=output919ef43aa43442ca92efb3893e3b9c33 --overwrite'] *
>>
>> When I tried to reclassify using an external .txt ( file containing the
>> rules it gives the same message..):
>>
>> *2020-11-23T22:04:05 INFOprocessInputs end. Commands: ['g.proj -c
>> proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
>> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
>> band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
>> s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
>> *2020-11-23T22:04:05 INFOprocessCommands end. Commands: ['g.proj
>> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
>> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
>> band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
>> s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
>> input=rast_5fbc23c5b84f411
>> rules="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\SUSC\\INDslope_ROTsub.txt"
>> output=outputc10364340554433aa78a4eda2a6bc0fb --overwrite']*
>>
>> Do you have any idea?
>>
>>
> Why do you think this is an error?  It says "INFO", not "ERROR".
>
>
> --
> Chris Hermansen · clhermansen "at" gmail "dot" com
>
> C'est ma façon de parler.
>
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Re: [Qgis-user] problem with RECLASSIFY (GRASS)

[chris hermansen]

Azzurra and list,

On Mon, Nov 23, 2020 at 1:09 PM Azzurra Lentini 
wrote:

> Hi to all, I am trying to reclassify a RASTER file slope - DATA TYPE int32
> (I have obtained it from a DTM and I have converted the data type using
> "translate" from data type float to INT32).
> But when I tried to reclassify using a rule
> 0 thru 50 = 1
> 51 thru 90 = 2
>  it gives thir error message:
>
> *2020-11-23T22:00:15 INFOprocessInputs end. Commands: ['g.proj -c
> proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
> band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
> s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
> *2020-11-23T22:00:15 INFOprocessCommands end. Commands: ['g.proj
> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
> band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
> s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
> input=rast_5fbc22df0abd18
> rules="C:/Users/AZZURRAHYDRO/AppData/Roaming/QGIS/QGIS3/profiles/default/project_templates/processing_880301be01084a079edf4a3379b133ea\\5fbc22df0bb669"
> output=output919ef43aa43442ca92efb3893e3b9c33 --overwrite'] *
>
> When I tried to reclassify using an external .txt ( file containing the
> rules it gives the same message..):
>
> *2020-11-23T22:04:05 INFOprocessInputs end. Commands: ['g.proj -c
> proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
> band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
> s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
> *2020-11-23T22:04:05 INFOprocessCommands end. Commands: ['g.proj
> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
> band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
> s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
> input=rast_5fbc23c5b84f411
> rules="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\SUSC\\INDslope_ROTsub.txt"
> output=outputc10364340554433aa78a4eda2a6bc0fb --overwrite']*
>
> Do you have any idea?
>
>
Why do you think this is an error?  It says "INFO", not "ERROR".


-- 
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C'est ma façon de parler.
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Re: [Qgis-user] problem with RECLASSIFY (GRASS)

[Azzurra Lentini]

Sorry, I did not specify that I am using qgis 3.10.11 version
Anyway I have tried the same command and with the same files but
using  ggis 2.18 and in this version it is working, but I would like to do
it in some of the 3.1X versions..

Thanks, Azzurra

On Mon, 23 Nov 2020 at 22:08, Azzurra Lentini 
wrote:

> Hi to all, I am trying to reclassify a RASTER file slope - DATA TYPE int32
> (I have obtained it from a DTM and I have converted the data type using
> "translate" from data type float to INT32).
> But when I tried to reclassify using a rule
> 0 thru 50 = 1
> 51 thru 90 = 2
>  it gives thir error message:
>
> *2020-11-23T22:00:15 INFOprocessInputs end. Commands: ['g.proj -c
> proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
> band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
> s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
> *2020-11-23T22:00:15 INFOprocessCommands end. Commands: ['g.proj
> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
> band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
> s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
> input=rast_5fbc22df0abd18
> rules="C:/Users/AZZURRAHYDRO/AppData/Roaming/QGIS/QGIS3/profiles/default/project_templates/processing_880301be01084a079edf4a3379b133ea\\5fbc22df0bb669"
> output=output919ef43aa43442ca92efb3893e3b9c33 --overwrite'] *
>
> When I tried to reclassify using an external .txt ( file containing the
> rules it gives the same message..):
>
> *2020-11-23T22:04:05 INFOprocessInputs end. Commands: ['g.proj -c
> proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
> band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
> s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
> *2020-11-23T22:04:05 INFOprocessCommands end. Commands: ['g.proj
> -c proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
> input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
> band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
> s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
> input=rast_5fbc23c5b84f411
> rules="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\SUSC\\INDslope_ROTsub.txt"
> output=outputc10364340554433aa78a4eda2a6bc0fb --overwrite']*
>
> Do you have any idea?
>
> thank you, Azzurra
>
> --
> Lecturer GIS University "Roma Tre"
> Consultant Environmental Risk Prevention and Hydrogeology
> AZZURRA LENTINI
> ++
> Italy Mobile Tel.: **(39) 338 24 40 676
> ++
> SKYPE azzurrahydro
> ++
>
> *azzurralent...@gmail.com *
>
> *azzurra.lent...@uniroma3.it  *
> ++
> *Par respect pour l'environnement,*
>
> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>
>
>
>
>
>

-- 
Lecturer GIS University "Roma Tre"
Consultant Environmental Risk Prevention and Hydrogeology
AZZURRA LENTINI
++
Italy Mobile Tel.: **(39) 338 24 40 676
++
SKYPE azzurrahydro
++

*azzurralent...@gmail.com *

*azzurra.lent...@uniroma3.it  *
++
*Par respect pour l'environnement,*

*n'imprimez ce mail qu'en cas d'absolue nécessité*
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Re: [Qgis-user] Screen size of QGIS window

[Nicolas Cadieux]

Hi,

I have no trouble on Ubuntu 20.04.  I installed 3.16 from here and not 
from the Ubuntu software store. Perhaps it could help if you said what 
version you had.


https://qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu

Nicolas

On 2020-11-23 12:42 p.m., Norman Trowell wrote:
Seems Like I am stupid but I can't seem to adjust the size of the QGIS 
desktop window esprcially vertically. I use Ubuntu 20.04

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

*
*
*
*
*
*
*

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[Qgis-user] problem with RECLASSIFY (GRASS)

[Azzurra Lentini]

Hi to all, I am trying to reclassify a RASTER file slope - DATA TYPE int32
(I have obtained it from a DTM and I have converted the data type using
"translate" from data type float to INT32).
But when I tried to reclassify using a rule
0 thru 50 = 1
51 thru 90 = 2
 it gives thir error message:

*2020-11-23T22:00:15 INFOprocessInputs end. Commands: ['g.proj -c
proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
*2020-11-23T22:00:15 INFOprocessCommands end. Commands: ['g.proj -c
proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
band=1 output="rast_5fbc22df0abd18" --overwrite -o', 'g.region n=4384860.0
s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
input=rast_5fbc22df0abd18
rules="C:/Users/AZZURRAHYDRO/AppData/Roaming/QGIS/QGIS3/profiles/default/project_templates/processing_880301be01084a079edf4a3379b133ea\\5fbc22df0bb669"
output=output919ef43aa43442ca92efb3893e3b9c33 --overwrite'] *

When I tried to reclassify using an external .txt ( file containing the
rules it gives the same message..):

*2020-11-23T22:04:05 INFOprocessInputs end. Commands: ['g.proj -c
proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
s=4370635.0 e=657470.0 w=639510.0 res=5.0']*
*2020-11-23T22:04:05 INFOprocessCommands end. Commands: ['g.proj -c
proj4="+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs"', 'r.external
input="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\slope\\slope5_int32.tif"
band=1 output="rast_5fbc23c5b84f411" --overwrite -o', 'g.region n=4384860.0
s=4370635.0 e=657470.0 w=639510.0 res=5.0', 'r.reclass
input=rast_5fbc23c5b84f411
rules="D:\\ROMATRE_CompleteJune2019\\CORSI\\corsoGIS202021\\CORSO_LM\\CORSO_R3_LabGIS_TEORIA_PRATICA\\PRATICA\\ESERCITAZIONE_2franaRiskROSSANO\\Elaborazioni\\SUSC\\INDslope_ROTsub.txt"
output=outputc10364340554433aa78a4eda2a6bc0fb --overwrite']*

Do you have any idea?

thank you, Azzurra

-- 
Lecturer GIS University "Roma Tre"
Consultant Environmental Risk Prevention and Hydrogeology
AZZURRA LENTINI
++
Italy Mobile Tel.: **(39) 338 24 40 676
++
SKYPE azzurrahydro
++

*azzurralent...@gmail.com *

*azzurra.lent...@uniroma3.it  *
++
*Par respect pour l'environnement,*

*n'imprimez ce mail qu'en cas d'absolue nécessité*
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Re: [Qgis-user] Toggle Attribute

[L.W.]

Implementation:

Starting position:

Two attribute tables with geodata and attributes, linked with each other
in the layer properties dialog.
When you click on an object in the map, the corresponding line to the
second object should be drawn.
If you click again, nothing more may be drawn.
If object B is set so that the lines should be displayed, then all
objects A should display the line regardless of a selection.

Symbol code:

Geometry generator -> LineString

if ("tab2_show_lines" = true OR is_selected () OR "tab1_hv",
make_line (make_point ("x1", "y1"), make_point ("x2", "y2")), '')



Action Script -> Layer Properties -> Actions -> Add New -> Python



Python code:

from qgis.utils import iface

layer_id = '[% @ layer_id%]'
layer_obj = QgsProject (). instance (). mapLayer (layer_id)

fid = [% $ id%]
hv = False if "[% hv%]" == 'false' else True

# QtWidgets.QMessageBox.information (None, "Clicked coords", "layer: [%
@layer_id%] \ ncoords: ([% @click_x%], [% @click_y%])")
# QtWidgets.QMessageBox.information (None, "fld", str (fld) + "" + str (hv))

layer_obj.startEditing ()
layer_obj.changeAttributeValue (fid, fld, not hv)
layer_obj.commitChanges ()



---



Cons / Problems / Known Limitations

Action:

Just click, no hover
Action can only be displayed via a combination button, not as a separate
button
Difficult to write action script (many clicks to get to the editor)
The layer with the Actionscript must be active / selected
You always have to select the action separately before clicking


Symbol:

Line not visible if the source object is not in the view (target object
does not matter), source / target connected by a link


Limitation:

My knowledge of python ;-)

---



Missing features

Edit project variables using the same action as written above



I hope you can learn a little from my gibberish.
Thank you all




Am 23.11.2020 um 15:24 schrieb Jorge Gustavo Rocha:


Hi Mike,

Just create an action with something like this to see it in action:

https://www.google.pt/maps/@[% @click_x %],[% @click_y %]

This will open google maps at the place you clicked. If you want to
get something from the action called, you have to capture its output
(and return the right value from your script).

As Richard said, start with the default actions and you will see
different kinds of things that can be done with actions. Capturing the
clicked X,Y is straight forward.

Jorge

Às 13:22 de 23/11/20, Mike Flannigan escreveu:


On 10/26/2014 I asked my first question in this forum:

Coordinate Capture plugin allows one to click on the map, hit
the "Copy to clipboard" button, and then use the lat/long on
the clipboard. I want something similar, but I want to
skip the "Copy to clipboard" button. Ideally I want to
click on the map and it copies the lat/long to the clipboard,
executes an external script, and puts the result on the map
next to the place clicked. I can skip the last step if that
is too complicated.

Can that be done with "Actions"? Or is the Python Console or
some other means a better way to get this done?



It went unanswered and I have never found a way to execute a
script upon a click.  I've seen others who wanted actions based
on a click or hover, but no clear solutions presented.  It sounds
like you are on to something below.


Mike


On 11/23/20 5:24 AM, qgis-user-requ...@lists.osgeo.org wrote:

I tried a little bit with "actions" but - I think you're right - there
is no onHover.

anyway, I found a much more comfortable solution for the moment.

I add the simple term "OR is_selected()" in the if clause for my symbol
to show the changed color (in my case I draw a line between two points)
and it worked like a charme.

But, this is without the option to e.g. display a messagebox or
someting
like that with additional informations of the feature (I know about map
hints/tips (I do not know the right translation).

Yes you could made an action for that, but my goal was to show this on
hover, but click is okay.

For X-Mas my wish in relation to QGIS is a hover event ... on
feature on
map and on symbols.;-)

Thanks for helping to everyone.




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Email Signature
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*Geomaster*
*Jorge Gustavo Rocha* | Software Engineer
*e:*j...@geomaster.pt | *m:*+351 910 333 888
*g:*41.54094,-8.40490 | *v: *510 906 109
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[Qgis-user] Screen size of QGIS window

[Norman Trowell]

Seems Like I am stupid but I can't seem to adjust the size of the QGIS
desktop window esprcially vertically. I use Ubuntu 20.04
*Norm Trowell*
*25 Lancaster Drive*
*Sudbury, Ontario*
*P3E 3R5*


*Phone:705-670-8281*
*Email:trowel...@gmail.com *
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[Qgis-user] Assunto: Doing classification using landsat 8

[Mauricio Tecles]

Hi,Take a look at this:
>From GIS to Remote Sensing  
|  
|   
|   
|   ||

   |

  |
|  
|   |  
>From GIS to Remote Sensing
 
>From GIS to Remote Sensing
  |   |

  |

  |

  

This blog is from the author of the SCP ( Semi-automatic Classification Plugin) 
for QGIS.
>From GIS to Remote Sensing  
|  
|   
|   
|   ||

   |

  |
|  
|   |  
>From GIS to Remote Sensing
 
>From GIS to Remote Sensing
  |   |

  |

  |

  


Mauricio

Enviado do Yahoo Mail no Android 
 
  Em seg, 23 23e nov 23e 2020 às 7:47, jean Lukusa escreveu: 
  Hi all, Can you give me a procedure to do  supervised and unsupervised 
classification   of landast8 in Qgis 
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Re: [Qgis-user] Toggle Attribute

[Jorge Gustavo Rocha]

Hi Mike,

Just create an action with something like this to see it in action:

https://www.google.pt/maps/@[% @click_x %],[% @click_y %]

This will open google maps at the place you clicked. If you want to get
something from the action called, you have to capture its output (and
return the right value from your script).

As Richard said, start with the default actions and you will see
different kinds of things that can be done with actions. Capturing the
clicked X,Y is straight forward.

Jorge

Às 13:22 de 23/11/20, Mike Flannigan escreveu:
>
> On 10/26/2014 I asked my first question in this forum:
>
> Coordinate Capture plugin allows one to click on the map, hit
> the "Copy to clipboard" button, and then use the lat/long on
> the clipboard. I want something similar, but I want to
> skip the "Copy to clipboard" button. Ideally I want to
> click on the map and it copies the lat/long to the clipboard,
> executes an external script, and puts the result on the map
> next to the place clicked. I can skip the last step if that
> is too complicated.
>
> Can that be done with "Actions"? Or is the Python Console or
> some other means a better way to get this done?
>
>
>
> It went unanswered and I have never found a way to execute a
> script upon a click.  I've seen others who wanted actions based
> on a click or hover, but no clear solutions presented.  It sounds
> like you are on to something below.
>
>
> Mike
>
>
> On 11/23/20 5:24 AM, qgis-user-requ...@lists.osgeo.org wrote:
>> I tried a little bit with "actions" but - I think you're right - there
>> is no onHover.
>>
>> anyway, I found a much more comfortable solution for the moment.
>>
>> I add the simple term "OR is_selected()" in the if clause for my symbol
>> to show the changed color (in my case I draw a line between two points)
>> and it worked like a charme.
>>
>> But, this is without the option to e.g. display a messagebox or someting
>> like that with additional informations of the feature (I know about map
>> hints/tips (I do not know the right translation).
>>
>> Yes you could made an action for that, but my goal was to show this on
>> hover, but click is okay.
>>
>> For X-Mas my wish in relation to QGIS is a hover event ... on feature on
>> map and on symbols.;-)
>>
>> Thanks for helping to everyone.
>>
>
>
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*e:*j...@geomaster.pt | *m:*+351 910 333 888
*g:*41.54094,-8.40490 | *v: *510 906 109
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Re: [Qgis-user] Toggle Attribute

[Mike Flannigan]

On 10/26/2014 I asked my first question in this forum:

Coordinate Capture plugin allows one to click on the map, hit
the "Copy to clipboard" button, and then use the lat/long on
the clipboard. I want something similar, but I want to
skip the "Copy to clipboard" button. Ideally I want to
click on the map and it copies the lat/long to the clipboard,
executes an external script, and puts the result on the map
next to the place clicked. I can skip the last step if that
is too complicated.

Can that be done with "Actions"? Or is the Python Console or
some other means a better way to get this done?



It went unanswered and I have never found a way to execute a
script upon a click.  I've seen others who wanted actions based
on a click or hover, but no clear solutions presented.  It sounds
like you are on to something below.


Mike


On 11/23/20 5:24 AM, qgis-user-requ...@lists.osgeo.org wrote:

I tried a little bit with "actions" but - I think you're right - there
is no onHover.

anyway, I found a much more comfortable solution for the moment.

I add the simple term "OR is_selected()" in the if clause for my symbol
to show the changed color (in my case I draw a line between two points)
and it worked like a charme.

But, this is without the option to e.g. display a messagebox or someting
like that with additional informations of the feature (I know about map
hints/tips (I do not know the right translation).

Yes you could made an action for that, but my goal was to show this on
hover, but click is okay.

For X-Mas my wish in relation to QGIS is a hover event ... on feature on
map and on symbols.;-)

Thanks for helping to everyone.




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Re: [Qgis-user] 202021-ESRI gdb not opening on macOS Big Sur Version 11.0.1

[Peter Petrik]

Hi all,

I do not have (yet) Big Sur, since I am enjoying working QGIS for the short
moment ... Could you please create a ticket in QGIS-Mac-Packager repo with
how-to-replicate? Thanks


Peter

On Mon, Nov 23, 2020 at 1:52 PM Paul T A Drea  wrote:

> Hi all,
>
> Have tried it on QGIS 3.14 with the same results.
>
> I do not believe it is a problem with QGIS per se but the libraries with
> Big Sur.
>
> I will hold off for a while and work on the Ubuntu machine which has no
> problem.
>
> Thanks for the help.
>
> BR
>
> Paul
> On 23/11/2020 13:45, John Layt wrote:
>
> Hi,
>
> It may be the difference is between QGIS 3.14 and 3.16, as the Mac
> packaging method changed in 3.16 and there are a few residual problems that
> are fixed in 3.16.1 (hopefully out today). I'd test it first with 3.14 on
> Big Sur before downgrading to Catalina.
>
> Regards,
>
> John.
>
>
> On Sat, 21 Nov 2020 at 08:03, Paul T A Drea  wrote:
>
>> Hi Ujaval,
>>
>> Same error. I am hearing from a colleage that this macOS version is
>> missing some of the lbraries that were in Catalina.
>>
>> I am updating all my backups and will bite the bullet and roll back to
>> Catalina.
>>
>> Thanks for the quick response.
>>
>> BR
>>
>> Paul
>> On 21/11/2020 11:52, Ujaval Gandhi wrote:
>>
>> I just ran into this and looks like a bug. Apparently dragging and
>> dropping layers from the Browser panel works perfectly. Do try and see if
>> that's the case.
>> [image: Logo] 
>> Ujaval Gandhi
>> Spatial Thoughts
>> mobile: +91-8095684687
>> email: uja...@spatialthoughts.com
>> [image: LinkedIn icon]   
>> [image:
>> Twitter icon] 
>>
>>
>>
>>
>> On Sat, Nov 21, 2020 at 12:27 PM Paul T A Drea 
>> wrote:
>>
>>> Dear list,
>>>
>>> I am running QGIS 3.16.0-Hannover QGIS code revision 4af1cbfb97 on a
>>> macOS Big Sur platform.
>>>
>>> Below is the error message I get when I try to open an ESRI gdb file.
>>>
>>> 2020-11-21T10:36:46 CRITICALInvalid Data Source : /Volumes/PAUL
>>> SSD
>>> 3/_Verif-i_UAE_2019/04.Data/02.GIS/03.Shapefiles/5.BLOCK_7_NORTH/Facilities_OnshoreBlock7.gdb
>>> is not a valid or recognized data source.
>>>
>>> This same file opens on my Ubuntu 20.04 machine and Win10 machine
>>> running QGIS 3.14.1-Pi QGIS code version de08d6b71d with no problems.
>>>
>>> This has only become apparent after an update on macOS from Catalina
>>> v10.15 to Big Sur 11.0.1
>>>
>>> Has anyone else experienced this problem?
>>>
>>> Any help in solving this would be much appreciated.
>>>
>>> Thank you and BR.
>>>
>>> Paul
>>> --
>>>
>>> *Paul T. A. Drea*
>>>
>>> *Geodetic Consultant*
>>>
>>> *Cell Greece: +30-698 052 0611*
>>>
>>> *Cell Abu Dhabi: +971 50 595 6547*
>>>
>>> *Cell U.K.: +44 7507 975162*
>>>
>>> *SKYPE: paul.drea*
>>>
>>> *e**-mail 1: **pauld...@gmail.com* 
>>>
>>> *e**-mail 2: **ptad...@otenet.gr* 
>>>
>>>
>>> ___
>>> Qgis-user mailing list
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>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
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>>>
>> --
>>
>> *Paul T. A. Drea*
>>
>> *Geodetic Consultant*
>>
>> *Cell Greece: +30-698 052 0611*
>>
>> *Cell Abu Dhabi: +971 50 595 6547*
>>
>> *Cell U.K.: +44 7507 975162*
>>
>> *SKYPE: paul.drea*
>>
>> *e**-mail 1: **pauld...@gmail.com* 
>>
>> *e**-mail 2: **ptad...@otenet.gr* 
>>
>>
>> ___
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> --
>
> *Paul T. A. Drea*
>
> *Geodetic Consultant*
>
> *Cell Greece: +30-698 052 0611*
>
> *Cell Abu Dhabi: +971 50 595 6547*
>
> *Cell U.K.: +44 7507 975162*
>
> *SKYPE: paul.drea*
>
> *e**-mail 1: **pauld...@gmail.com* 
>
> *e**-mail 2: **ptad...@otenet.gr* 
>
>
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Re: [Qgis-user] 202021-ESRI gdb not opening on macOS Big Sur Version 11.0.1

[Paul T A Drea]

Hi all,

Have tried it on QGIS 3.14 with the same results.

I do not believe it is a problem with QGIS per se but the libraries with 
Big Sur.


I will hold off for a while and work on the Ubuntu machine which has no 
problem.


Thanks for the help.

BR

Paul

On 23/11/2020 13:45, John Layt wrote:

Hi,

It may be the difference is between QGIS 3.14 and 3.16, as the Mac 
packaging method changed in 3.16 and there are a few 
residual problems that are fixed in 3.16.1 (hopefully out today). I'd 
test it first with 3.14 on Big Sur before downgrading to Catalina.


Regards,

John.


On Sat, 21 Nov 2020 at 08:03, Paul T A Drea > wrote:


Hi Ujaval,

Same error. I am hearing from a colleage that this macOS version
is missing some of the lbraries that were in Catalina.

I am updating all my backups and will bite the bullet and roll
back to Catalina.

Thanks for the quick response.

BR

Paul

On 21/11/2020 11:52, Ujaval Gandhi wrote:

I just ran into this and looks like a bug. Apparently dragging
and dropping layers from the Browser panel works perfectly. Do
try and see if that's the case.
Logo    
Ujaval Gandhi
Spatial Thoughts
mobile: +91-8095684687
email: uja...@spatialthoughts.com

LinkedIn icon 
Twitter icon 





On Sat, Nov 21, 2020 at 12:27 PM Paul T A Drea
mailto:pauld...@gmail.com>> wrote:

Dear list,

I am running QGIS 3.16.0-Hannover QGIS code revision
4af1cbfb97 on a macOS Big Sur platform.

Below is the error message I get when I try to open an ESRI
gdb file.

2020-11-21T10:36:46     CRITICAL Invalid Data Source :
/Volumes/PAUL SSD

3/_Verif-i_UAE_2019/04.Data/02.GIS/03.Shapefiles/5.BLOCK_7_NORTH/Facilities_OnshoreBlock7.gdb
is not a valid or recognized data source.

This same file opens on my Ubuntu 20.04 machine and Win10
machine running QGIS 3.14.1-Pi QGIS code version de08d6b71d
with no problems.

This has only become apparent after an update on macOS from
Catalina v10.15 to Big Sur 11.0.1

Has anyone else experienced this problem?

Any help in solving this would be much appreciated.

Thank you and BR.

Paul

-- 


*/Paul T. A. Drea/*

*Geodetic Consultant*

*Cell Greece: +30-698 052 0611*

*Cell Abu Dhabi: +971 50 595 6547*

*Cell U.K.: +44 7507 975162*

*SKYPE: paul.drea*

*e**-mail 1: **pauld...@gmail.com* 

*e**-mail 2: **ptad...@otenet.gr* 

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*/Paul T. A. Drea/*

*Geodetic Consultant*

*Cell Greece: +30-698 052 0611*

*Cell Abu Dhabi: +971 50 595 6547*

*Cell U.K.: +44 7507 975162*

*SKYPE: paul.drea*

*e**-mail 1: **pauld...@gmail.com* 

*e**-mail 2: **ptad...@otenet.gr* 

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--

*/Paul T. A. Drea/*

*Geodetic Consultant*

*Cell Greece: +30-698 052 0611*

*Cell Abu Dhabi: +971 50 595 6547*

*Cell U.K.: +44 7507 975162*

*SKYPE: paul.drea*

*e**-mail 1: **pauld...@gmail.com* 

*e**-mail 2: **ptad...@otenet.gr* 

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[Qgis-user] Doing classification using landsat 8

[jean Lukusa]

Hi all,
Can you give me a procedure to do  supervised and unsupervised
classification   of landast8 in Qgis
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Re: [Qgis-user] Toggle Attribute

[Bernd Vogelgesang]

other ideas after my third coffee:

Maybe you could try with a virtual layer. I'm successfully working with
them to show me the status of to be controlled items with a
geometry-less maintenance-table. But I'm pretty confident that the same
logic would work with two geometry layers

If there was the possibility to query for that is_selected() you found,
it could be possible to just show the requested item and be otherwise
invisible. I will investigate later.

Drawback on Virtual layers is, that they seem to be not very performant,
but maybe my queries are just inefficient crap, who knows.

On 23.11.20 10:29, L.W. wrote:

and there are some disadvantages ... first you have to set the layer
active to which the symbol belongs.

there is no "is_" derivat for "get object info" (i-icon with
mouse-pointer), so nothing happened if the feautre attribute-dialog is
shown, the feature is (different) highlighted but not the same way as
"selected" (by the yellow buttons with mouse-pointer).


Am 23.11.2020 um 10:06 schrieb L.W.:

I tried a little bit with "actions" but - I think you're right - there
is no onHover.

anyway, I found a much more comfortable solution for the moment.

I add the simple term "OR is_selected()" in the if clause for my symbol
to show the changed color (in my case I draw a line between two points)
and it worked like a charme.

But, this is without the option to e.g. display a messagebox or someting
like that with additional informations of the feature (I know about map
hints/tips (I do not know the right translation).

Yes you could made an action for that, but my goal was to show this on
hover, but click is okay.

For X-Mas my wish in relation to QGIS is a hover event ... on feature on
map and on symbols. ;-)

Thanks for helping to everyone.


PS: Do I have to implement a Plugin to have a dockable window for
showing infos non modal on per action selected features?


Am 23.11.2020 um 09:40 schrieb Richard Duivenvoorde:

On 11/22/20 8:40 PM, Jésahel Benoist wrote:

The actions are a standard way of acting on graphical objects, so
for me it would be the first thing to try. Did you ?

Le dim. 22 nov. 2020 à 20:01, Bernd Vogelgesang
mailto:bernd.vogelges...@gmx.de>> a écrit :

 if you would be so kind to explain the "just" part of your
proposal?

I think in the User lists it is always good to add a link to some
documentation about a QGIS-term. In this case 'actions' kan be a
normal word, but (advanced) users maybe (or not) know that it is also
something you can use to 'do something in QGIS upon a click on a
feature'.

Some documentation here:
https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#actions-menu


(or do a search on 'actions' in the QGIS docs site).
Tip: go to vector layer properties, 'Actions' tab, and hit 'Create
Default Actions' button. You will get all kind of examples.

About original post: I do not think we have an Action on hover (plz
correct me if I'm wrong), but to run some (PyQGIS) python code is
doable.
With PyQGIS you can search for features in other layers, and maybe
'select' these on click in the other layer (or change attribute,
though I'm not sure how to change it back then... )

Acutally this sounds like nice functionality for layers which have
relations... I'm not so experienced with relations in layers.

If you worked out a way to do this, plz let us know :-)

Regards,

Richard


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Re: [Qgis-user] 202021-ESRI gdb not opening on macOS Big Sur Version 11.0.1

[John Layt]

Hi,

It may be the difference is between QGIS 3.14 and 3.16, as the Mac
packaging method changed in 3.16 and there are a few residual problems that
are fixed in 3.16.1 (hopefully out today). I'd test it first with 3.14 on
Big Sur before downgrading to Catalina.

Regards,

John.


On Sat, 21 Nov 2020 at 08:03, Paul T A Drea  wrote:

> Hi Ujaval,
>
> Same error. I am hearing from a colleage that this macOS version is
> missing some of the lbraries that were in Catalina.
>
> I am updating all my backups and will bite the bullet and roll back to
> Catalina.
>
> Thanks for the quick response.
>
> BR
>
> Paul
> On 21/11/2020 11:52, Ujaval Gandhi wrote:
>
> I just ran into this and looks like a bug. Apparently dragging and
> dropping layers from the Browser panel works perfectly. Do try and see if
> that's the case.
> [image: Logo] 
> Ujaval Gandhi
> Spatial Thoughts
> mobile: +91-8095684687
> email: uja...@spatialthoughts.com
> [image: LinkedIn icon]   [image:
> Twitter icon] 
>
>
>
>
> On Sat, Nov 21, 2020 at 12:27 PM Paul T A Drea  wrote:
>
>> Dear list,
>>
>> I am running QGIS 3.16.0-Hannover QGIS code revision 4af1cbfb97 on a
>> macOS Big Sur platform.
>>
>> Below is the error message I get when I try to open an ESRI gdb file.
>>
>> 2020-11-21T10:36:46 CRITICALInvalid Data Source : /Volumes/PAUL
>> SSD
>> 3/_Verif-i_UAE_2019/04.Data/02.GIS/03.Shapefiles/5.BLOCK_7_NORTH/Facilities_OnshoreBlock7.gdb
>> is not a valid or recognized data source.
>>
>> This same file opens on my Ubuntu 20.04 machine and Win10 machine running
>> QGIS 3.14.1-Pi QGIS code version de08d6b71d with no problems.
>>
>> This has only become apparent after an update on macOS from Catalina
>> v10.15 to Big Sur 11.0.1
>>
>> Has anyone else experienced this problem?
>>
>> Any help in solving this would be much appreciated.
>>
>> Thank you and BR.
>>
>> Paul
>> --
>>
>> *Paul T. A. Drea*
>>
>> *Geodetic Consultant*
>>
>> *Cell Greece: +30-698 052 0611*
>>
>> *Cell Abu Dhabi: +971 50 595 6547*
>>
>> *Cell U.K.: +44 7507 975162*
>>
>> *SKYPE: paul.drea*
>>
>> *e**-mail 1: **pauld...@gmail.com* 
>>
>> *e**-mail 2: **ptad...@otenet.gr* 
>>
>>
>> ___
>> 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
>>
> --
>
> *Paul T. A. Drea*
>
> *Geodetic Consultant*
>
> *Cell Greece: +30-698 052 0611*
>
> *Cell Abu Dhabi: +971 50 595 6547*
>
> *Cell U.K.: +44 7507 975162*
>
> *SKYPE: paul.drea*
>
> *e**-mail 1: **pauld...@gmail.com* 
>
> *e**-mail 2: **ptad...@otenet.gr* 
>
>
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Re: [Qgis-user] Toggle Attribute

[L.W.]

and there are some disadvantages ... first you have to set the layer
active to which the symbol belongs.

there is no "is_" derivat for "get object info" (i-icon with
mouse-pointer), so nothing happened if the feautre attribute-dialog is
shown, the feature is (different) highlighted but not the same way as
"selected" (by the yellow buttons with mouse-pointer).


Am 23.11.2020 um 10:06 schrieb L.W.:

I tried a little bit with "actions" but - I think you're right - there
is no onHover.

anyway, I found a much more comfortable solution for the moment.

I add the simple term "OR is_selected()" in the if clause for my symbol
to show the changed color (in my case I draw a line between two points)
and it worked like a charme.

But, this is without the option to e.g. display a messagebox or someting
like that with additional informations of the feature (I know about map
hints/tips (I do not know the right translation).

Yes you could made an action for that, but my goal was to show this on
hover, but click is okay.

For X-Mas my wish in relation to QGIS is a hover event ... on feature on
map and on symbols. ;-)

Thanks for helping to everyone.


PS: Do I have to implement a Plugin to have a dockable window for
showing infos non modal on per action selected features?


Am 23.11.2020 um 09:40 schrieb Richard Duivenvoorde:

On 11/22/20 8:40 PM, Jésahel Benoist wrote:

The actions are a standard way of acting on graphical objects, so
for me it would be the first thing to try. Did you ?

Le dim. 22 nov. 2020 à 20:01, Bernd Vogelgesang
mailto:bernd.vogelges...@gmx.de>> a écrit :

 if you would be so kind to explain the "just" part of your
proposal?

I think in the User lists it is always good to add a link to some
documentation about a QGIS-term. In this case 'actions' kan be a
normal word, but (advanced) users maybe (or not) know that it is also
something you can use to 'do something in QGIS upon a click on a
feature'.

Some documentation here:
https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#actions-menu

(or do a search on 'actions' in the QGIS docs site).
Tip: go to vector layer properties, 'Actions' tab, and hit 'Create
Default Actions' button. You will get all kind of examples.

About original post: I do not think we have an Action on hover (plz
correct me if I'm wrong), but to run some (PyQGIS) python code is
doable.
With PyQGIS you can search for features in other layers, and maybe
'select' these on click in the other layer (or change attribute,
though I'm not sure how to change it back then... )

Acutally this sounds like nice functionality for layers which have
relations... I'm not so experienced with relations in layers.

If you worked out a way to do this, plz let us know :-)

Regards,

Richard


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Re: [Qgis-user] Toggle Attribute

[L.W.]

I tried a little bit with "actions" but - I think you're right - there
is no onHover.

anyway, I found a much more comfortable solution for the moment.

I add the simple term "OR is_selected()" in the if clause for my symbol
to show the changed color (in my case I draw a line between two points)
and it worked like a charme.

But, this is without the option to e.g. display a messagebox or someting
like that with additional informations of the feature (I know about map
hints/tips (I do not know the right translation).

Yes you could made an action for that, but my goal was to show this on
hover, but click is okay.

For X-Mas my wish in relation to QGIS is a hover event ... on feature on
map and on symbols. ;-)

Thanks for helping to everyone.


PS: Do I have to implement a Plugin to have a dockable window for
showing infos non modal on per action selected features?


Am 23.11.2020 um 09:40 schrieb Richard Duivenvoorde:

On 11/22/20 8:40 PM, Jésahel Benoist wrote:

The actions are a standard way of acting on graphical objects, so for me it 
would be the first thing to try. Did you ?

Le dim. 22 nov. 2020 à 20:01, Bernd Vogelgesang mailto:bernd.vogelges...@gmx.de>> a écrit :

 if you would be so kind to explain the "just" part of your proposal?

I think in the User lists it is always good to add a link to some documentation 
about a QGIS-term. In this case 'actions' kan be a normal word, but (advanced) 
users maybe (or not) know that it is also something you can use to 'do 
something in QGIS upon a click on a feature'.

Some documentation here:
https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#actions-menu
(or do a search on 'actions' in the QGIS docs site).
Tip: go to vector layer properties, 'Actions' tab, and hit 'Create Default 
Actions' button. You will get all kind of examples.

About original post: I do not think we have an Action on hover (plz correct me 
if I'm wrong), but to run some (PyQGIS) python code is doable.
With PyQGIS you can search for features in other layers, and maybe 'select' 
these on click in the other layer (or change attribute, though I'm not sure how 
to change it back then... )

Acutally this sounds like nice functionality for layers which have relations... 
I'm not so experienced with relations in layers.

If you worked out a way to do this, plz let us know :-)

Regards,

Richard


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Re: [Qgis-user] Toggle Attribute

[Richard Duivenvoorde]

On 11/22/20 8:40 PM, Jésahel Benoist wrote:
> The actions are a standard way of acting on graphical objects, so for me it 
> would be the first thing to try. Did you ?
> 
> Le dim. 22 nov. 2020 à 20:01, Bernd Vogelgesang  > a écrit :
> 
> if you would be so kind to explain the "just" part of your proposal?

I think in the User lists it is always good to add a link to some documentation 
about a QGIS-term. In this case 'actions' kan be a normal word, but (advanced) 
users maybe (or not) know that it is also something you can use to 'do 
something in QGIS upon a click on a feature'.

Some documentation here:
https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#actions-menu
(or do a search on 'actions' in the QGIS docs site).
Tip: go to vector layer properties, 'Actions' tab, and hit 'Create Default 
Actions' button. You will get all kind of examples.

About original post: I do not think we have an Action on hover (plz correct me 
if I'm wrong), but to run some (PyQGIS) python code is doable.
With PyQGIS you can search for features in other layers, and maybe 'select' 
these on click in the other layer (or change attribute, though I'm not sure how 
to change it back then... )

Acutally this sounds like nice functionality for layers which have relations... 
I'm not so experienced with relations in layers.

If you worked out a way to do this, plz let us know :-)

Regards,

Richard

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