[Qgis-user] Looking for QGIS Python code for a three-level menu?

[Elstermann, Mike via QGIS-User]

Hello everyone,

I'm looking for a piece of QGIS Python code for a three-level menu, something 
like this:

Plugins
   |
   |
MyMenu > -+-- Submenu 1 >  SubSubMenu 1.1
   |  |   +--- SubSubMenu 1.2
   |  |   +--- SubSubMenu 1.3
Other...  |
  +-- Submenu 2 >  SubSubMenu 2.1
  |   +--- SubSubMenu 2.2
  |   +--- SubSubMenu 2.3
  |   +--- SubSubMenu 2.4
  |
  +-- Submenu 3 >  SubSubMenu 3.1
  +--- SubSubMenu 3.2

 Can anyone help with a code snippet?

 Thanks & best regards, mikeE.
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[Qgis-user] Newbie-questions for Publishing my 1st QGIS Plugin

[Elstermann, Mike via QGIS-User]

Hello everyone,

I am new to QGIS plugin programming. My questions are related to the 
publication of plugins in the QGIS Plugin Repository.
I uploaded my plugin "OD_LSA_Loader" six days ago (11.04.2024), plugin ID 3346, 
yesterday (16.04.2024) another new version. There was no error message in both 
cases, everything seems OK.

Now to my questions:
- Who releases the plugin when or informs me if I did something wrong or if 
further steps are necessary?
- Is there still something to do, have I forgotten something, are there still 
errors?
- Or am I just too impatient?

Thank you & best regards, mikeE.
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[Qgis-user] WFS: Change symbolization (outline color/thickness and fill) using Python in QGIS.

[Elstermann, Mike via QGIS-User]

Hello everyone,

I have a code snippet to load a WFS, how can I easily change the symbolization 
(outline color/thickness and fill) using Python in QGIS?.

 def addWFS14(self):
uri = 
'https://www.geodatenportal.sachsen-anhalt.de/wss/service/ST_LVermGeo_ALKIS_WFS_OpenData/guest?=WFS=1332412,6708967,1333423,6709355=1=auto=ave:GebaeudeBauwerk=EPSG:25832=false=true'
lyr14 = QgsVectorLayer(uri, "LSA: ALKIS Gebäude (WFS)" , ‚WFS')
QgsProject.instance().addMapLayer(lyr14)


Thanks & best regards, mikeE. 


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[Qgis-user] Issue with Building Virtual Point Cloud (VPC)

[Mike Treglia via QGIS-User]

Hi all,

I have a folder with a LOT of point cloud files (1,740) - all stored as
cloud optimized point clouds (COPCs), which were converted from .las files
via QGIS. I'm trying to build a virtual point cloud via QGIS, selecting the
folder with all of the COPCs. However as its running, fairly on, it stops
running and I get a message "incorrect parameter value for layers."

I'm not finding any log files, and no .vpc file is created.

Any suggestions for troubleshooting and such? They are all from the same
source, for the same general geographic area, so while I haven't checked
all of the CRS information is the same, anticipate it should be across all
of these files.

And in case it helps, below is the "About" info for my install

Best,
Mike


QGIS version

3.34.3-Prizren

QGIS code revision

47373234ac <https://github.com/qgis/QGIS/commit/47373234ac>

Qt version

5.15.3

Python version

3.9.18

GDAL/OGR version

3.8.3

PROJ version

9.3.1

EPSG Registry database version

v10.098 (2023-11-24)

GEOS version

3.12.1-CAPI-1.18.1

SQLite version

3.41.1

PDAL version

2.6.0

PostgreSQL client version

15.2

SpatiaLite version

5.1.0

QWT version

6.1.6

QScintilla2 version

2.13.4

OS version

Windows 10 Version 2009




Active Python plugins

BivariateRenderer

1.0.1

DataPlotly

3.9

PeliasGeocoding

0.1

pg_metadata

1.2.2

postgis_geoprocessing

0.9

qgis2web

3.16.0

quick_map_services

0.19.29

Socrata

2.2

valuetool

3.0.15

db_manager

0.1.20

MetaSearch

0.3.6

processing

2.12.99
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Re: [Qgis-user] [EXT] Problem downloading QGIS 3.34 to macOS 12.7.1 [Marketing Mail]

[Elstermann, Mike via QGIS-User]

THX Anita & Andrea!
Regards, mikeE., the #geoObserver.


Von: QGIS-User  Im Auftrag von Anita Graser 
via QGIS-User
Gesendet: Montag, 6. November 2023 22:18
An: qgis-user@lists.osgeo.org
Betreff: [EXT] [Qgis-user] Problem downloading QGIS 3.34 to macOS 12.7.1 
[Marketing Mail]


ACHTUNG: Diese E-Mail stammt von einem externen Absender (au??erhalb der 
SWH-Gruppe). Bitte h??chste Vorsicht mit Dateianh??ngen und Hyperlinks! Im 
Zweifelsfall wird empfohlen, den Absender (z.B. per Telefon) zu  kontaktieren 
und die Echtheit der E-Mail zu pr??fen.


Thank you for the report. We are aware of the issue and working on it.
Regards Anita
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Re: [Qgis-user] [EXT] Problem downloading QGIS 3.34 to macOS 12.7.1 [Marketing Mail]

[Elstermann, Mike via QGIS-User]

I have the same problem (already reported)
mikeE., the #geoObserver.

https://x.com/geoObserver_/status/1721089667968176342?s=20

Am 06.11.2023 um 14:28 schrieb Thomas Beauvais via QGIS-User 
:

ACHTUNG: Diese E-Mail stammt von einem externen Absender (außerhalb der 
SWH-Gruppe). Bitte höchste Vorsicht mit Dateianhängen und Hyperlinks! Im 
Zweifelsfall wird empfohlen, den Absender (z.B. per Telefon) zu  kontaktieren 
und die Echtheit der E-Mail zu prüfen.


Dear users,

I am using QGIS 3.32 version and I want to download the 3.34 version on my Mac 
computer (macOS 12.7.1). I properly downloaded and loaded the installation 
package for Mac computers on the QGIS web page. Then I ran QGIS, but the 
software presented the 3.32 version.

I precise that I use QGIS for personal purposes. I hope I have been clear in my 
explanations.

Best regards,

Thomas Beauvais.
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Re: [Qgis-user] Possibility for Labels as Hyperlinks in PDF Output?

[Mike Treglia via QGIS-User]

Thanks, Em,
That's a great suggestion! It seems like it might have broader utility, so
will definitely file a feature request in GitHub.
Best,
Mike

On Mon, Sep 11, 2023 at 9:38 PM Emma Hain  wrote:

> Hi Mike
> I've done a search for a feature request for this for QGIS.
> <https://github.com/qgis/QGIS/issues>
> I can't see anything, I see similar things but not actually what you are
> asking. You may want to include this as a new feature request as it is
> kinda cool.
>
> Cheers
> Em
>
> On Tue, 12 Sept 2023 at 04:57, Mike Treglia via QGIS-User <
> qgis-user@lists.osgeo.org> wrote:
>
>> Thanks, Keith, for pointing me to that documentation.
>>
>> That's really helpful. I guess I had gotten confused with some
>> functionality with web-map exports in  QGIS2Web - leaflet maps - in that
>> form, a field with an html-formatted hyperlink would function as a
>> hyperlink (though a hyperlink label still just seems to be formatted as a
>> link, but not function as one.)
>>
>> I also see that in the Print Composer, manually using the "Add Label"
>> functionality enables one to include html-formatted hyperlinks, which
>> function in exported PDFs (when "render as html" is checked in the label
>> properties in the print composer).  So, it looks like there is almost the
>> functionality I'm looking for, but not quite.  If there's a way to place
>> labels from a map layer in a print composer in the right spots, that could
>> potentially work, but that seems challenging - I can't wrap my brain around
>> how that would functionally even work.
>>
>> Welcome any other ideas folks have, or how others have worked through
>> this.  It seems like the alternative options to doing this fully in QGIS
>> would involve exporting the PDF and working in PDF-editing software to
>> incorporate the links.
>>
>> Best,
>> Mike
>>
>>
>>
>> On Mon, Sep 11, 2023 at 11:10 AM Keith Jenkins 
>> wrote:
>>
>>> I don't think the label "HTML formatting" currently supports links.
>>> The supported HTML is just a subset of HTML, mainly focused on visual
>>> styles:
>>>
>>> """
>>> The HTML formatting option enables the proper rendering of some HTML
>>> tags to customize the label. The supported HTML tags are:
>>>
>>> * Color, applicable to text, underline, strikethrough, and overline
>>> * Font properties (font family, font size, bold and italic)
>>> * Superscript and subscript components in text
>>> """
>>>
>>> https://docs.qgis.org/testing/en/docs/user_manual/style_library/label_settings.html#text-tab
>>>
>>> Keith
>>>
>>> On Mon, Sep 11, 2023 at 9:28 AM Mike Treglia via QGIS-User
>>>  wrote:
>>> >
>>> > Hi all,
>>> >
>>> > Working on a project where the desired output is PDF map, where the
>>> labels are hyperlinks. From searching around, it seems like there are, at
>>> least historically, some challenges related to this functionality and Qt,
>>> which might still be present?
>>> >
>>> > I'm finding that in the Print Composer in QGIS, I can add a label that
>>> functions as a hyperlink in an exported PDF (using the "render as HTML"
>>> functionality"), but labels associated with a layer, placed in the main map
>>> window, do not function as hyperlinks when exported as a PDF.
>>> >
>>> > Thus, wanted to check if maybe either I'm missing something - like
>>> this is/should be possible, or if not directly, maybe there's an efficient
>>> work-around?  I'm working in QGIS 3.32-2 most immediately for testing this,
>>> on Windows.
>>> >
>>> > Thanks, all, for any insights!
>>> > Mike
>>> >
>>> >
>>> > ___
>>> > 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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>>
>
>
> --
> 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* <http://north-road.com>
> <https://twitter.com/northroadgeo>
> <https://www.linkedin.com/company/north-road-studios>
> <https://www.facebook.com/North-Road-997236690392419/home>
>
>
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Re: [Qgis-user] Possibility for Labels as Hyperlinks in PDF Output?

[Mike Treglia via QGIS-User]

Thanks, Keith, for pointing me to that documentation.

That's really helpful. I guess I had gotten confused with some
functionality with web-map exports in  QGIS2Web - leaflet maps - in that
form, a field with an html-formatted hyperlink would function as a
hyperlink (though a hyperlink label still just seems to be formatted as a
link, but not function as one.)

I also see that in the Print Composer, manually using the "Add Label"
functionality enables one to include html-formatted hyperlinks, which
function in exported PDFs (when "render as html" is checked in the label
properties in the print composer).  So, it looks like there is almost the
functionality I'm looking for, but not quite.  If there's a way to place
labels from a map layer in a print composer in the right spots, that could
potentially work, but that seems challenging - I can't wrap my brain around
how that would functionally even work.

Welcome any other ideas folks have, or how others have worked through
this.  It seems like the alternative options to doing this fully in QGIS
would involve exporting the PDF and working in PDF-editing software to
incorporate the links.

Best,
Mike



On Mon, Sep 11, 2023 at 11:10 AM Keith Jenkins  wrote:

> I don't think the label "HTML formatting" currently supports links.
> The supported HTML is just a subset of HTML, mainly focused on visual
> styles:
>
> """
> The HTML formatting option enables the proper rendering of some HTML
> tags to customize the label. The supported HTML tags are:
>
> * Color, applicable to text, underline, strikethrough, and overline
> * Font properties (font family, font size, bold and italic)
> * Superscript and subscript components in text
> """
>
> https://docs.qgis.org/testing/en/docs/user_manual/style_library/label_settings.html#text-tab
>
> Keith
>
> On Mon, Sep 11, 2023 at 9:28 AM Mike Treglia via QGIS-User
>  wrote:
> >
> > Hi all,
> >
> > Working on a project where the desired output is PDF map, where the
> labels are hyperlinks. From searching around, it seems like there are, at
> least historically, some challenges related to this functionality and Qt,
> which might still be present?
> >
> > I'm finding that in the Print Composer in QGIS, I can add a label that
> functions as a hyperlink in an exported PDF (using the "render as HTML"
> functionality"), but labels associated with a layer, placed in the main map
> window, do not function as hyperlinks when exported as a PDF.
> >
> > Thus, wanted to check if maybe either I'm missing something - like this
> is/should be possible, or if not directly, maybe there's an efficient
> work-around?  I'm working in QGIS 3.32-2 most immediately for testing this,
> on Windows.
> >
> > Thanks, all, for any insights!
> > Mike
> >
> >
> > ___
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> > 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] Possibility for Labels as Hyperlinks in PDF Output?

[Mike Treglia via QGIS-User]

Hi all,

Working on a project where the desired output is PDF map, where the labels
are hyperlinks. From searching around, it seems like there are, at least
historically, some challenges related to this functionality and Qt, which
might still be present?

I'm finding that in the Print Composer in QGIS, I can add a label that
functions as a hyperlink in an exported PDF (using the "render as HTML"
functionality"), but labels associated with a layer, placed in the main map
window, do not function as hyperlinks when exported as a PDF.

Thus, wanted to check if maybe either I'm missing something - like this
is/should be possible, or if not directly, maybe there's an efficient
work-around?  I'm working in QGIS 3.32-2 most immediately for testing this,
on Windows.

Thanks, all, for any insights!
Mike
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Re: [Qgis-user] Unable to find the write projection to make my map layers line up

[Mike Hyslop via QGIS-User]

Hi Matt

I don't routinely work in California, but I think

   - *NAD83(2011) / California zone 3 (ftUS) (EPSG: 6420)*

 is the correct projection to use. See https://epsg.io/6420 for additional
details.

Best,
Mike

On Tue, May 30, 2023 at 4:00 PM Matthew Hartzell via QGIS-User <
qgis-user@lists.osgeo.org> wrote:

> Hello everybody,
>
> This is my first time using this forum/mailing list. Please forgive me if
> I'm doing anything wrong...
>
> *QGIS version:* 3.12
> *OS: *Mac 12.1
>
> *Problem:*
> I am trying to project a map containing parcel boundaries (vector) and
> orthoimagery (raster) to match the projection used by a set of engineering
> drawings so that I can line my map layers up to match the engineering
> drawings.
>
> The engineer who made the engineering drawings told me that the projection
> she used was:
>
>- *NAD83 (NSRS2011), CA State Plane Zone III, U.S. Survey Feet*
>
>
> I cannot find this precise projection in QGIS’s list of projections.
> However, I tried the following projections, and none of them worked (that
> is, none of them projected my map layers in a way that lines up with the
> engineering drawings as expected):
>
>- *NAD83 / California zone 3 (EPSG: 26943)*
>- *NAD83 / California zone 3 (ftUS) (EPSG: 2227)*
>- *NAD83(2011) / California zone 3 (EPSG: 6419)*
>- *NAD83(2011) / California zone 3 (ftUS) (EPSG: 6420)*
>- *NAD83(HARN) / California zone 3 (EPSG: 2768)*
>- *NAD83(HARN) / California zone 3 (ftUS) (EPSG: 2872)*
>- *NAD83(NSRS2007) / California zone 3 (EPSG: 3493)*
>- *NAD83(NSRS2007) / California zone 3 (ftUS) (EPSG: 3494)*
>- *NAD_1983_HARN_StatePlane_California_III_FIPS_0403 (EPSG: 102243)*
>- *NAD_1983_StatePlane_California_III_FIPS_0403_Feet (EPSG: 102643)*
>
>
> What am I doing wrong?
>
> Which projection should I be using in QGIS so that my map layers line up
> with the projection “NAD83 (NSRS2011), CA State Plane Zone III, U.S. Survey
> Feet”?
>
> Thank you
>
> Matt
>
>
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Re: [Qgis-user] QGIS for safe organization use

[Mike Flannigan via QGIS-User]

What is ITAR?  When I look up ITAR I get:
International Traffic in Arms Regulations

Ah, I see that is it:

"ITAR rules is a precondition of receiving controlled
goods and technologies from a U.S. company."

We are running into that with a project I am involved
in at work.



Mike


On 5/23/23 12:20, qgis-user-requ...@lists.osgeo.org wrote:

Unfortunately I, like all Americans, am legally precluded from giving
you advice about your specific situation due to ITAR.  I would suggest
you find a consultant within Canada.  Thank you for being upfront about
your situation.


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Re: [Qgis-user] python code generated during georeferencing in QGIS

[Mike Flannigan via QGIS-User]

Theoretically QGIS is open source code.  I have not proved that
myself, but that is what I hear.  If that is the case, Yes,
you can see the QGIS code used for georeferencing - if you can
find it :-)


Mike


On 5/16/23 14:00, qgis-user-requ...@lists.osgeo.org wrote:

Message: 2
Date: Tue, 16 May 2023 12:55:48 +0200
From: Spaska Forteva
To:qgis-user@lists.osgeo.org
Subject: [Qgis-user] python code generated during georeferencing in
QGIS
Message-ID:

Content-Type: text/plain; charset=UTF-8; format=flowed

Hello,

I have a problem and I hope for an answer here. I know how to
georeference a tif map with geopoints in QGIS. I have developed a shiny
app and want to automate/program the georeferencing for several maps
there (for loop). Unfortunately, I've tried a lot and can't get it
directly under python without errors. My question, is there any way I
can see the python code generated during georeferencing in QGIS? I can
develop something myself in the Python console, but not the steps that I
create with the QGIS program for georeferencing, right?
Is there a way to see the python code generated during georeferencing in
QGIS? -GPT says yes, but nothing happens to me in the console 

Best Regards,
Spaska Forteva


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Re: [Qgis-user] Adding road symbols to a map

[ERT - Mike Breiding via QGIS-User]

Thanks, Thayer.
I will give it a try.
I thought there might be a labeling plug-in which would simplify there 
process.

WV-Mike

On 3/22/2023 12:32 PM, Thayer Young via QGIS-User wrote:

Hi Mike,

Download an SVG (scalable vector graphic file) of each shield from 
Wikipedia and then set in the Labels tab of the Layer Styling panel 
set the text to your road's name as you like, then in the Background 
subtab (looks like a US interstate shield) check "Draw background", 
set shape to SVG and click on the ellipsis (...) and navigate to your 
shield's SVG file. Then you need to adjust the offset, shield size and 
the text size and color, etc.. It takes a while but when you figure it 
out be sure to save the style to an SLD or QML file so you can reuse 
it. If you are using PostGIS or other database you can save the style 
in the database as a default for your highway lines.


-Thayer___
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[Qgis-user] Adding road symbols to a map

[ERT - Mike Breiding via QGIS-User]

Greetings,
I have been reading tutorials and watching YouTube videos but I cannot 
find out how to add road symbols to lines such as interstate and US 
Highway shields.


Any suggestions?
Thanks,
WV-Mike___
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Re: [Qgis-user] Layout questions

[ERT - Mike Breiding via QGIS-User]

Thanks, Thayer.
That is what was needed.
All is well.

WV-Mike
p.s. My apologies for the second post on this topic.
==
On 3/21/2023 11:21 AM, Thayer Young via QGIS-User wrote:

Hi Mike,

1:20 will fit a city, or a small county, but not all of WV. I 
think your map is much larger than the page you are fitting it to.

I recommend:
1) delete the map.
   You will probably see a lot of grey with a small white box. The 
white box is what gets printed. Note that by default the layout is A4 
size. You probably want Letter or Legal.
2) Right click inside the white box (if you don't see the white box do 
3 first)

a) select Page Properties
b) set the "Page Size" "Size". Legal and Letter are in the middle of 
the list.
3) left click the "zoom full" icon, 4th from the left, 2nd toolbar 
from the top.Then add a new map, this time fit it within the white 
area of the page.


Then try exporting your image again.

-Thayer


On Tuesday, March 21, 2023 at 04:00:21 AM EDT, 
qgis-user-requ...@lists.osgeo.org  
wrote:


Date: Mon, 20 Mar 2023 15:01:34 -0700
From: ERT - Mike Breiding 
To: Qgis 
Subject: [Qgis-user] Layout questions
Message-ID: <4680b603-c5ae-1701-0c3d-83b5dcc68...@gmail.com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Greetings,
I have read over the documentation for the Layout.
I have added a map to the layout.
The view of the map is dim or obscured as it was behind a semi
transparent skin.
When I export the layout as an image only a portion of the map is saved.
I looked for an option such as "Fit map to layout size" but I could not
find anything.
There are screen shots here:
https://photos.app.goo.gl/PuLieK9hYETMQFyy5

If the map size is changed how does one refresh the layout to reload the
map?
Thanks,
WV-Mike


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[Qgis-user] Layout problems using 3.28.4-Firenze

[ERT - Mike Breiding via QGIS-User]

Greetings,
Previously I was using 3.16.16 Hannover on a Win 7 machine
I am now using 3.28.4-Firenze on another machine using Win 11.

The layout in Hannover are fine.
In Firenze the problems are:
The view of the map is dim or obscured as it was behind a semi 
transparent skin.

When I export the layout as an image only a portion of the map is saved.
There are screen shots here:
https://photos.app.goo.gl/PuLieK9hYETMQFyy5

Any help out there?
Thanks,
WV-Mike

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[Qgis-user] Layout questions

[ERT - Mike Breiding via QGIS-User]

Greetings,
I have read over the documentation for the Layout.
I have added a map to the layout.
The view of the map is dim or obscured as it was behind a semi 
transparent skin.

When I export the layout as an image only a portion of the map is saved.
I looked for an option such as "Fit map to layout size" but I could not 
find anything.

There are screen shots here:
https://photos.app.goo.gl/PuLieK9hYETMQFyy5

If the map size is changed how does one refresh the layout to reload the 
map?

Thanks,
WV-Mike___
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Re: [Qgis-user] Cannot find Print Layout

[ERT - Mike Breiding via QGIS-User]

I set the icon size for 32. Much better!
Thanks,
WV-Mike

On 3/20/2023 1:57 PM, Delaz J wrote:


Hi Mike, Just in the case you would not be joking about icons size 
being too small, note that you can adjust their size from within the 
Options dialog 
(https://docs.qgis.org/3.28/en/docs/user_manual/introduction/qgis_configuration.html#general-settings)


Regards,

Harrissou
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Re: [Qgis-user] Cannot find Print Layout

[ERT - Mike Breiding via QGIS-User]

On 3/20/2023 12:14 PM, Harrissou s. wrote:

Hi,
Here the HTML version 
(https://docs.qgis.org/3.28/en/docs/user_manual/print_composer/overview_composer.html) 
and "File" menu should instead be "Project".

Thanks. I will bookmark that.
About missing icon, well... Maybe you don't have the " Project" 
toolbar enabled (can be done from View menu --> Toolbars)

I found it. The icons area a bit small for my eyes.
Thanks,
WV-Mike




Regards,
Harrissou

Le 20 mars 2023 19:45:25 GMT+01:00, ERT - Mike Breiding via QGIS-User 
 a écrit :


Greetings,
I cannot see how to create a Print Layout.
I found the info below but I do not see a "New Print Layout icon"
or a "File" menu.

Obviously I am missing something.
WV-Mike

Ver. 3.28.4
Win 11

Before you start to work with the print layout, you need to load
some raster or vector layers in the QGIS map canvas
and adapt their properties to suit your own convenience. After
everything is rendered and symbolized to your liking,

click the New Print Layout icon in the toolbar or choose File ►
New Print Layout. You will be prompted to choose a
title for the new layout.

QGIS-3.28-DesktopUserGuide-en.pdf
<https://docs.qgis.org/3.28/pdf/en/QGIS-3.28-DesktopUserGuide-en.pdf>
Page 647
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Re: [Qgis-user] Cannot find Print Layout

[ERT - Mike Breiding via QGIS-User]

On 3/20/2023 12:10 PM, Thayer Young wrote:

Hi Mike,
Try the Project menu, "New Print Layout" should be 4th from the 
bottom. You can also use the control-p or command-p keyboard 
combination. -Thayer

How did I miss that?
Thanks,
WV-Mike



On Monday, March 20, 2023 at 03:00:41 PM EDT, 
qgis-user-requ...@lists.osgeo.org  
wrote:


Date: Mon, 20 Mar 2023 11:45:25 -0700
From: ERT - Mike Breiding 
To: Qgis 
Subject: [Qgis-user] Cannot find Print Layout
Message-ID: <03b98652-fb0c-a18d-4227-e24c6470d...@gmail.com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Greetings,
I cannot see how to create a Print Layout.
I found the info below but I do not see a "New Print Layout icon" or a
"File" menu.

Obviously I am missing something.
WV-Mike

Ver. 3.28.4
Win 11

Before you start to work with the print layout, you need to load some
raster or vector layers in the QGIS map canvas
and adapt their properties to suit your own convenience. After
everything is rendered and symbolized to your liking,

click the New Print Layout icon in the toolbar or choose File ? New
Print Layout. You will be prompted to choose a
title for the new layout.

QGIS-3.28-DesktopUserGuide-en.pdf
<https://docs.qgis.org/3.28/pdf/en/QGIS-3.28-DesktopUserGuide-en.pdf>
Page 647
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[Qgis-user] Cannot find Print Layout

[ERT - Mike Breiding via QGIS-User]

Greetings,
I cannot see how to create a Print Layout.
I found the info below but I do not see a "New Print Layout icon" or a 
"File" menu.


Obviously I am missing something.
WV-Mike

Ver. 3.28.4
Win 11

Before you start to work with the print layout, you need to load some 
raster or vector layers in the QGIS map canvas
and adapt their properties to suit your own convenience. After 
everything is rendered and symbolized to your liking,


click the New Print Layout icon in the toolbar or choose File ► New 
Print Layout. You will be prompted to choose a

title for the new layout.

QGIS-3.28-DesktopUserGuide-en.pdf 
<https://docs.qgis.org/3.28/pdf/en/QGIS-3.28-DesktopUserGuide-en.pdf>

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Re: [Qgis-user] Two LAZ file possible issues iwth some new data we received to processs

[Mike Stanton via QGIS-User]

Hi Nicolas, thank you for the well researched and detailed answer.  I was 
running on the latest build and it had a the new feature for Cloud Optimization 
COPC.  That feature doubled the number of open files for the process and I 
dropped back to 3.22 to get my processing done. It appears that during the 
indexing process  of 3.28 the COPC files are left open even after moving on to 
another LAZ file.  The 3.22 level did not create the COPC files and everything 
worked out for the images.

From: Nicolas Cadieux 
Sent: Friday, February 17, 2023 7:20 AM
To: Mike Stanton 
Cc: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] Two LAZ file possible issues iwth some new data we 
received to processs

Hi,

I did run into this layer number limite in the past.  If you check the user 
list or if you Google “QGIS, maximum amount of layers… “ you will find multiple 
post. The issue, at the time was caused by limites in the OS.  (Windows 7 at 
the time), OSX had and easy work around.  Same thing for the various flavours 
of  Linux.

At the time, I either combined files when using QGIS or opened them in Saga 
that did not have this problem. I believe this was  because Saga, at least back 
then, loaded all the file into memory and did not keep a handle on the files 
once is was open.

This is the type of thing that got me into learning Python so that I could 
create loops and speed up operations on LiDAR data.

It’s normal (or at least expected)  for large batches of file to have bugs in 
them like missing crs in headers.  File transfers can be difficult to handle.  
Talk with the provider to see if they have the same issue.  If you know a bit 
of Python, I could send you a script that reads the LiDAR header directly.

LasPy is a good little library for this 
https://laspy.readthedocs.io/en/latest/intro.html#header

You could find tools in WhiteboxTools also.
Nicolas Cadieux
https://gitlab.com/njacadieux


Le 16 févr. 2023 à 17:50, Mike Stanton via QGIS-User 
mailto:qgis-user@lists.osgeo.org>> a écrit :

I have LAZ files  for a square mile of the local area where my office is and 
when it is loaded under QGIS I hit two problems. It is a bit over 2000 files 
and I seem to have hit a capacity limit where it stops processing the images at 
about 200 files.  The message being output for the files is “Failed to 
Calculate Statistics of the Point Cloud of .LAZ”.   Breaking it 
into smaller pieces gets the project around the scale limits of the product 
because the doing only the rejected files gets me more files processed, but it 
is not convenient considering I expect to be processing a lot more of these 
files.

The other problem is that QGIS tells me I don’t have a CRS for the images and 
the image has a field that says “No CRS Found” in the log file and what I have 
is data in the header that says “COMPD_CS [“Projected”, PROJCS “UTM 15N”, 
GEOGCS [WGS84 …. “  but the strings have unpaired square brackets round the 
relevant text. Is this what may be causing the error to occur?
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Re: [Qgis-user] Two LAZ file possible issues iwth some new data we received to processs

[Mike Stanton via QGIS-User]

Hi Even, In the project it had “EPSG:4326 – WGS84” for the CRS  in the empty 
project and after I successfully loaded a few of the files.

I ran a controlled test today that initially ran the full set. Examination of 
the results showed that I could load 500 files before the programme showed the 
Statistics message in the log. I then setup a test by loading the 500 files 
that initially loaded to completion. Then from a clean load of QGIS I added 
file/layers one at a time until the error occurred. The test took ~5 individual 
files to load before the failure to generate the Statistics file occurred.  I 
believe that I ran into this once before on another package.  It seems there is 
a limit that Windows has for the number of files (Number of active Handles 
Issue) a process can have open at one time. With the COPC files and the normal 
LAZ samples maybe I exceeded that number.   More investigation is needed on my 
part since I did find some documented limits.

From: Mike Stanton
Sent: Thursday, February 16, 2023 11:56 PM
To: 'Even Rouault' ; qgis-user@lists.osgeo.org
Subject: RE: [Qgis-user] Two LAZ file possible issues iwth some new data we 
received to processs

Thanks, Even! I will have to do it when I am on the other side of the firewall 
tomorrow. I was trying to be economical and bundle two issues together. I can 
get the data from the header of the LAZ file and also from the properties of 
the QGIS Project then.


From: Even Rouault 
mailto:even.roua...@spatialys.com>>
Sent: Thursday, February 16, 2023 7:11 PM
To: Mike Stanton mailto:mfstan...@geospan.com>>; 
qgis-user@lists.osgeo.org<mailto:qgis-user@lists.osgeo.org>
Subject: Re: [Qgis-user] Two LAZ file possible issues iwth some new data we 
received to processs



Le 16/02/2023 à 23:41, Mike Stanton via QGIS-User a écrit :
I have LAZ files  for a square mile of the local area where my office is and 
when it is loaded under QGIS I hit two problems. It is a bit over 2000 files 
and I seem to have hit a capacity limit where it stops processing the images at 
about 200 files.  The message being output for the files is “Failed to 
Calculate Statistics of the Point Cloud of .LAZ”.   Breaking it 
into smaller pieces gets the project around the scale limits of the product 
because the doing only the rejected files gets me more files processed, but it 
is not convenient considering I expect to be processing a lot more of these 
files.

The other problem is that QGIS tells me I don’t have a CRS for the images and 
the image has a field that says “No CRS Found” in the log file and what I have 
is data in the header that says “COMPD_CS [“Projected”, PROJCS “UTM 15N”, 
GEOGCS [WGS84 …. “  but the strings have unpaired square brackets round the 
relevant text. Is this what may be causing the error to occur?
Can you paste the exact CRS WKT string ? Though I doubt it is related with the 
200 file limit issue


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Re: [Qgis-user] Two LAZ file possible issues iwth some new data we received to processs

[Mike Stanton via QGIS-User]

Thanks, Even! I will have to do it when I am on the other side of the firewall 
tomorrow. I was trying to be economical and bundle two issues together. I can 
get the data from the header of the LAZ file and also from the properties of 
the QGIS Project then.


From: Even Rouault 
Sent: Thursday, February 16, 2023 7:11 PM
To: Mike Stanton ; qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] Two LAZ file possible issues iwth some new data we 
received to processs



Le 16/02/2023 à 23:41, Mike Stanton via QGIS-User a écrit :
I have LAZ files  for a square mile of the local area where my office is and 
when it is loaded under QGIS I hit two problems. It is a bit over 2000 files 
and I seem to have hit a capacity limit where it stops processing the images at 
about 200 files.  The message being output for the files is “Failed to 
Calculate Statistics of the Point Cloud of .LAZ”.   Breaking it 
into smaller pieces gets the project around the scale limits of the product 
because the doing only the rejected files gets me more files processed, but it 
is not convenient considering I expect to be processing a lot more of these 
files.

The other problem is that QGIS tells me I don’t have a CRS for the images and 
the image has a field that says “No CRS Found” in the log file and what I have 
is data in the header that says “COMPD_CS [“Projected”, PROJCS “UTM 15N”, 
GEOGCS [WGS84 …. “  but the strings have unpaired square brackets round the 
relevant text. Is this what may be causing the error to occur?
Can you paste the exact CRS WKT string ? Though I doubt it is related with the 
200 file limit issue




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[Qgis-user] Two LAZ file possible issues iwth some new data we received to processs

[Mike Stanton via QGIS-User]

I have LAZ files  for a square mile of the local area where my office is and 
when it is loaded under QGIS I hit two problems. It is a bit over 2000 files 
and I seem to have hit a capacity limit where it stops processing the images at 
about 200 files.  The message being output for the files is "Failed to 
Calculate Statistics of the Point Cloud of .LAZ".   Breaking it 
into smaller pieces gets the project around the scale limits of the product 
because the doing only the rejected files gets me more files processed, but it 
is not convenient considering I expect to be processing a lot more of these 
files.

The other problem is that QGIS tells me I don't have a CRS for the images and 
the image has a field that says "No CRS Found" in the log file and what I have 
is data in the header that says "COMPD_CS ["Projected", PROJCS "UTM 15N", 
GEOGCS [WGS84  "  but the strings have unpaired square brackets round the 
relevant text. Is this what may be causing the error to occur?
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Re: [Qgis-user] What QGIS plugin development should I work on this year?

[Mike Flannigan via QGIS-User]

Thank you.  That is very helpful for showing and hiding
different layers.  That is going to help me quite a bit.

I am searching the Help Docs for format painter, brush,
or whatever.  Surely there is something like that
somewhere.


Mike


On 2/1/23 14:00, qgis-user-requ...@lists.osgeo.org wrote:

Mike, have you looked into Map Themes?
https://docs.qgis.org/3.22/en/docs/user_manual/introduction/general_tools.html#configuring-map-themes

Sounds like it might help with your problem.

Alexei


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[Qgis-user] What QGIS plugin development should I work on this year?

[Mike Flannigan via QGIS-User]

My biggest problem with qgis is handling of layers and groups.
Copying styles from one layer to another (or 10 other layers)
should be easier.  Unchecking (hiding) 20 layers at once
cannot be done by me right now without grouping them.  There
are likely many other examples I can't think of right now.

I see quite a few plugins related to layers, and to be honest
I have not tried them all out.  But so far I have not found the
layer handler I want.


Mike


On 1/26/23 14:00, qgis-user-requ...@lists.osgeo.org wrote:

Hi QGIS users,

I am looking for ideas for what QGIS development I should be working on
this year. My plugin development over the years has focused on capabilities
that were missing at the time or algorithms that made QGIS user's lives
easier. Here are the plugins I've developed so far.

https://plugins.qgis.org/plugins/author/C%2520Hamilton/

I am interested in algorithms that may be in commercial software but not in
QGIS that people need. I am also interested in different ways to visualize
and analyze data. Last year I released the Density Analysis plugin
<https://plugins.qgis.org/plugins/densityanalysis/>. It added additional
density analysis algorithms including a fast H3 histogram of an area. I
never got any feedback on the plugin so I don't know whether it is
useful or not to users, but it has had 11,608 downloads since last June. I
always appreciate feedback as it is what encourages me to continue
development.

I have been debating on updating the D3 Data Visualization plugin
<https://plugins.qgis.org/plugins/d3datavis/>  to use plotly to create the
graph and perhaps add additional graphs. That was one of my early plugins
where I created my own D3 graph of the data. It could probably be done
better.

Are there any algorithms that you would like to have developed? It may be
that QGIS is getting sufficiently advanced that there is not much that is
really needed any more, but if you have any ideas I would appreciate them.
Anything I work on needs to benefit a sizable number of users. It can't be
too specific. It also needs to be constrained enough that I can complete in
a reasonable amount of time.

If you have any ideas for improving my existing plugins that could be an
option as well.

By the way is there a better forum than this qgis-user group to reach out
to QGIS users or is this the best way?

Thanks for your input!

Calvin


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[Qgis-user] Less Ambiguous Legends for Continuous/Gradient Variables

[Mike Treglia via QGIS-User]

Hi All,

Happy New Year!  Quick question that has come up various times, and never
asked here for some reason:

With legends for continuous variables, as generated by QGIS, the values for
class boundaries tend to be a bit ambiguous, in that its not clear whether
a unit with that value would fall in the upper or lower bin of data due to
how the numbers are represented. For example, with a 2-class legend as
follows, this might be the case:
0-1
1-2

Confusion could be avoided by using more precise values and adjusting the
bins (possible in QGIS by unlinking class boundaries and manually adjusting
ranges) - e.g., it would look like something this:
0.0-0.9
1.0-2.0

Or it could be clarified with different symbology such as below, but I
don't believe this is available in QGIS:
0.0 < x <= 1
1 < x <= 2

Am I missing any way to more automatically address this in QGIS via
existing tools, either built-in or via a Plug-In?  I've seen a bug report
on this front, but it looks like its still open (albeit there's a potential
solution within the thread) - https://github.com/qgis/QGIS/issues/29852.

Thanks! Knowing there are so many sharp QGIS users out there, I imagine
others have figured out great approaches that I'm just behind on.

Mike
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Re: [Qgis-user] multiple csv file import

[Mike Hyslop via Qgis-user]

This has been covered in StackExchange:
https://gis.stackexchange.com/questions/276590/bulk-csv-to-shapefile-using-ogr2ogr

Determine the correct ogr2ogr syntax for processing one of your .csv files.
If on Windows, issue the command *ls *.csv > files.txt*This will 'list'
all of your csv files but will save them to a text file named *files.txt*.
You can then use Excel to clone your correct command syntax while changing
the input (drawn from files.txt) and output filenames (these can also be
taken from the input filenames). Save the excel sheet as a text file and
feed it to ogr2ogr - it will process each line sequentially until all files
have been converted.

Best,
Mike

On Tue, Nov 15, 2022 at 2:58 PM Hugh Kelley via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> David, this was my first thought when i saw this question as well.
>
> however, I didn't look for very long but I haven't seen a way to tell
> ogr2ogr to read columns in a csv as the lat/lon and write those as points
> to the shapefile.  I generally write a csv to postgres as a non-spatial
> table and then process the lat lon columns with postgis.
>
>  Are there arguments for ogr2ogr that can do this?
>
> On Tue, Nov 15, 2022 at 12:30 PM David Strip via Qgis-user <
> qgis-user@lists.osgeo.org> wrote:
>
>> You might consider ogr2ogr as an alternative approach. You can run this
>> from the command line allowing you to use shell scripts to iterate through
>> all your .csv files. There are also python bindings for ogr2ogr if you're
>> more comfortable with python than shell scripts.
>>
>> On 11/15/2022 9:59 AM, Salvatore Mellino via Qgis-user wrote:
>>
>> Hello,
>>
>> thank you for your answer. I have many csv (about 100), so I need an
>> automatic procedure. Maybe a python script...
>>
>> Il 15/11/2022 16:55, Nicolas Cadieux ha scritto:
>>
>> Hi,
>>
>> Yes, you can do that very easily using QGIS.  Layer/add layer/add
>> delimited text layer.  Then just export the layer in the format of your
>> choice. You may need to convert the coordinates in decimal degrees (ex 75
>> 05 30.4 -> 75.0917800 ).
>>
>> You can do this in Excel using =(A6)+(B6/60)+(C6/3600)+(D6/3600) A= Deg,
>> B= Min, C=Sec, D= Decimal Sec.  Then export to csv.
>>
>> Nicolas
>>
>>
>> On 2022-11-15 10:08 a.m., Salvatore Mellino via Qgis-user wrote:
>>
>> Hello,
>>
>> I would like to know if it is possible to import multiple csv files
>> contained in a folder and to convert them in shapefiles (1 for each csv).
>> All csv files are structured as "lat long value" separate by space and
>> without any header line.
>>
>> Thank you for your help! Regards,
>>
>> Salvatore
>>
>>
>>
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>
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>
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Re: [Qgis-user] excessive threads?

[Mike Stanton via Qgis-user]

It all depends on the module you are running and whether it effectively uses 
the “-multi” option with “all_available_cores” and of course how many cores are 
available on your system.  Yes it will vary a lot depending on the nature of 
the processing and what stage it is in for that particular module.   Another 
consideration is the Processor model that is on your system and how many 
sockets you have active on it. Servers from the so called “Enterprise” class 
can support 2-4 processor sockets and those processor sockets can have up to 24 
cores on them. A Dell R930 (a 4 socket Motherboard) can support are running 
with 96 cores per system with its current socket, the FC630s blades are capable 
of 40 cores per system.  The use of the “ALL_AVAILABLE_CORES” option will work 
on an as needed basis to add cores to the optimum for the workflow modules and 
the data characteristics being processed.  It gets down to understanding what 
is normal for your processor model, how much real memory you have, and the 
nature of the application and the data layout to avoid conflicts.

From: Qgis-user  On Behalf Of David Strip 
via Qgis-user
Sent: Saturday, July 30, 2022 10:44 PM
To: Greg Troxel ; chris hermansen 
Cc: qgis-user 
Subject: Re: [Qgis-user] excessive threads?

On 7/30/2022 6:36 PM, Greg Troxel via Qgis-user wrote:

I do understand that threads could help parallelization, eitehr using

multiple cores, or just allowing IO in parallel.



chris hermansen  writes:



Does it seem like you have one thread per layer for reading plus one for

rendering plus one for user  input?

I don't know how many layers I have :-)I can experiment with some

smaller projects.



When I noticed this, I had not tried to use qgis in at least a day.




I did a little bit of quick experimentation using Qgis 3.26 (Buenos Aires) on 
Windows 10. The number of threads is all over the place. It does not seem to be 
tied to the number of layers in the map, at least in the sense of steady state 
(ie, let the app sit idle for a while). Adding layers bumps the thread count, 
with shapefiles adding more threads than files in a geopkg. Locally stored 
geotiffs are more like a geopkg vector file in terms of threads. But once 
things settle down I end up around 20 threads. Interestingly, Help->About 
bumped the thread count by 8. Closing a project (not saving) and then opening a 
"new" project (no template) bumped another 8 threads for about 30 seconds, then 
settled back down.Launching Qgis peaked at 30 threads, then after about it 
minute settles down to 14. I suspect this is dependent on which plug-ins I'm 
running.

Note these numbers are non-deterministic - Help->About on a fresh start of Qgis 
with an empty project jumped from 13 threads to 33, then settled down to 22, 
which is different from the previous attempt where there were open layers in 
the map.

I'll be interested to hear what drives the thread count to > 150 . None of my 
very limited test involved database connections or connections to remote data. 
Those might have something to do with it. Maybe layer filters? Complex 
rendering (eg, geometry generators)?
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Re: [Qgis-user] excessive threads?

[Mike Stanton via Qgis-user]

ALCON,  We are processing data at 4cm resolution from 4000 ft altitude that 
gives me a DSM Ortho of about 800 GB -1.3 TB depending on the bit depth. My 
folders have a rile count of over 88,000 Tiles @ 2048 X 2048 with a GSD of 
~.076 depending on the processing you are doing I am guessing you can get 8-16 
tiles per thread when doing a mosaic operation or even an export. No mention of 
the tool being used was given, I am doing a lot of reprojects on that file base 
I described and if I go into multi-thread mode I know it will kick that number 
up.

Again, I am used to what I see from another tool that uses the GDAL Library for 
processing and it does get up over 140 threads when it is doing it processing

From: chris hermansen 
Sent: Saturday, July 30, 2022 3:57 PM
To: Mike Stanton 
Cc: Greg Troxel ; qgis-user 
Subject: Re: [Qgis-user] excessive threads?

Mike and list,

Mike, would you please explain why the surface area would be related to the 
number of threads?

1000 square miles or ~ 250.000 hectares in my units is big but not huge. We 
have a 7 million hectare vegetation inventory we're updating now.

Do you have a bunch of small tiles? Are you thinking that 1 tile = 1 thread?

On Sat, Jul 30, 2022, 12:46 Mike Stanton 
mailto:mfstan...@geospan.com>> wrote:
Chris, it really depends on how large your project is. Some of my projects 
cover 1000 sq miles.  Usually I don’t use QGIS directly for that, I break it 
down to smaller pieces.

From: Qgis-user 
mailto:qgis-user-boun...@lists.osgeo.org>> 
On Behalf Of chris hermansen via Qgis-user
Sent: Saturday, July 30, 2022 2:37 PM
To: Greg Troxel mailto:g...@lexort.com>>
Cc: qgis-user mailto:qgis-user@lists.osgeo.org>>
Subject: Re: [Qgis-user] excessive threads?

Greg and list

On Sat, Jul 30, 2022 at 10:38 AM Greg Troxel via Qgis-user 
mailto:qgis-user@lists.osgeo.org>> wrote:

(I realize excessive is relative.  Back when I was young, we didn't have
any threads at all)

My desktop is NetBSD 9, I ran out of threads, and found that qgis 3.22.8
was using 157 threads, much more than I expected.

[stuff deleted]

I really don't understand:

  What is qgis using threads for?

  Do others see large (100 or so, vs 10) thread counts?

  Why are there 157 (really, why are there more than about 10-20)?
Seems kind of surprising to me as well.  I get that some applications could 
benefit by parallel execution, and of course separating rendering from file or 
other I/O seems reasonable, but 157 is a lot of threads for just reading data 
and visualizing it.

As far as I know, PostgreSQL doesn't even use threads.  See for example this 
discussion 
https://dba.stackexchange.com/questions/251935/number-of-worker-threads-available-in-postgresql

About SQLite I have no idea.

Does it seem like you have one thread per layer for reading plus one for 
rendering plus one for user  input?


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

C'est ma façon de parler.
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Re: [Qgis-user] excessive threads?

[Mike Stanton via Qgis-user]

Chris, it really depends on how large your project is. Some of my projects 
cover 1000 sq miles.  Usually I don’t use QGIS directly for that, I break it 
down to smaller pieces.

From: Qgis-user  On Behalf Of chris 
hermansen via Qgis-user
Sent: Saturday, July 30, 2022 2:37 PM
To: Greg Troxel 
Cc: qgis-user 
Subject: Re: [Qgis-user] excessive threads?

Greg and list

On Sat, Jul 30, 2022 at 10:38 AM Greg Troxel via Qgis-user 
mailto:qgis-user@lists.osgeo.org>> wrote:

(I realize excessive is relative.  Back when I was young, we didn't have
any threads at all)

My desktop is NetBSD 9, I ran out of threads, and found that qgis 3.22.8
was using 157 threads, much more than I expected.

[stuff deleted]

I really don't understand:

  What is qgis using threads for?

  Do others see large (100 or so, vs 10) thread counts?

  Why are there 157 (really, why are there more than about 10-20)?
Seems kind of surprising to me as well.  I get that some applications could 
benefit by parallel execution, and of course separating rendering from file or 
other I/O seems reasonable, but 157 is a lot of threads for just reading data 
and visualizing it.

As far as I know, PostgreSQL doesn't even use threads.  See for example this 
discussion 
https://dba.stackexchange.com/questions/251935/number-of-worker-threads-available-in-postgresql

About SQLite I have no idea.

Does it seem like you have one thread per layer for reading plus one for 
rendering plus one for user  input?


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

C'est ma façon de parler.
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Re: [Qgis-user] excessive threads?

[Mike Stanton via Qgis-user]

Yes I see a lot of threads. The more tne merrier, the faster the throughput. 

I am running an I9 9980XE with 18 cores.  What having the threads running does 
is it allows computing to happen while I/O is running in the foreground. To 
make most efficient use of multiple threads the workload has to be one that can 
be partitioned in neat little buckets so there is no data conflict. A large 
Aerial Triangulation or Digital Ortho (Mosaic) operation on image tiles that 
were physically separated in memory (Column and Row in memory)would be Ideal 
candidates

One thing I found was that for HPC applications Hyperthreading can actually 
cost performance and should be turned off.  This has been borne out by 
benchmarks and can cost as much as 10% of your CPU performance. You are better 
just relying on the normal Affinized Core in a multi core processor switching 
architecture if it is available to you (supermicro or Dell PowerEdge platforms) 
. Hyperthreading is an automatic hardware function switching the active thread 
on occurrence of a CPU long wait state.  That switch takes time because it 
requires a state save. Core switching does too but it is less random requiring 
an execution event (I/O or Hard Page Fault) to trigger it.

-Original Message-
From: Qgis-user  On Behalf Of Greg Troxel 
via Qgis-user
Sent: Saturday, July 30, 2022 12:38 PM
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] excessive threads?


(I realize excessive is relative.  Back when I was young, we didn't have any 
threads at all)

My desktop is NetBSD 9, I ran out of threads, and found that qgis 3.22.8 was 
using 157 threads, much more than I expected.

Yes, I know 157 is not a super large number, and that the limit of 1024 threads 
is not tuned for hardware that's good enough to really use qgis.
(For various reasons, partially historical inertia, partially because most 
NetBSD people have a computing history that tends towards what today might be 
called minimalism, and because NetBSD is used on old hardware and hardware with 
very little memory (if it doesn't run in 128 MB we think that's a bug), some of 
the default limits are too low.
Obviously when doing big things those limits need to be increased, but it tends 
to surface resource usage that's higher than perhaps it should be.  This is 
aligned with the idea that developers should have to use the programs they are 
developing on at laest 10 year old normal hardware to see what it's like.)

My qgis instance has a lot of layers, but many are geopackage, many are 
shapefiles, a couple are postgis, a few are online TMS, a few are TIF, and a 
few are jp2 tiles.  While it takes 20s to start up (machine is
2014 4-core, 24G RAM, 2T SSD), it's fast once started.

I really don't understand:

  What is qgis using threads for?

  Do others see large (100 or so, vs 10) thread counts?

  Why are there 157 (really, why are there more than about 10-20)?

Thanks,
Greg
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Re: [Qgis-user] OSGeo4W Shell with Unix-Style Terminal?

[Mike Treglia via Qgis-user]

Thanks, Jurgen! Much appreciated!

I haven't had luck yet, but if I get it to work, will let you all know what
the solution is.  From what I've found, it seems like git bash is based on
msys2, and changing "cmd /c" to "cmd //c" lets something run for fetchenv,
but gdal commands are not available after I run it.

Again, much appreciated, and more later if I figure it out!
Mike

On Thu, Jul 7, 2022 at 6:00 PM Jürgen E. Fischer via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Hi Mike,
>
> On Thu, 07. Jul 2022 at 17:31:26 -0400, Mike Treglia wrote:
> > So I've added the below to my profile (from the link you've previously
> > shared), and I can run 'fetchenv /c/OSGeo4W/bin/o4w_env.bat' from my bash
> > terminal - and it starts the process, but it either is getting hung up,
> or
> > is just taking longer than I anticipated - is it something that does take
> > some time and I just need to let it run, so be patient? Or am I maybe
> > missing or need to adjust something else?
>
> Not sure - I use cygwin's bash and with that it works.  Other shells might
> behave differently.
>
> msys for instance has problems with plain /c in the cmd call and needs //c
> (see
> https://github.com/OSGeo/grass/blob/main/mswindows/osgeo4w/package.sh#L33)
>
> Try set -x to get some more insight what it does and where it hangs.  It
> might
> take a few seconds, but no minute.
>
>
> Jürgen
>
> --
> Jürgen E. Fischer   norBIT GmbH Tel. +49-4931-918175-31
> Dipl.-Inf. (FH) Rheinstraße 13  Fax. +49-4931-918175-50
> Software Engineer   D-26506 Norden
> https://www.norbit.de
> QGIS release manager (PSC)  Germany IRC: jef on Libera|OFTC
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Re: [Qgis-user] OSGeo4W Shell with Unix-Style Terminal?

[Mike Treglia via Qgis-user]

Thanks again, Jürgen,

I appreciate the explanation - this is definitely an area where I can often
figure things out, but am still learning and fumbling my way through it a
bit.

So I've added the below to my profile (from the link you've previously
shared), and I can run 'fetchenv /c/OSGeo4W/bin/o4w_env.bat' from my bash
terminal - and it starts the process, but it either is getting hung up, or
is just taking longer than I anticipated - is it something that does take
some time and I just need to let it run, so be patient? Or am I maybe
missing or need to adjust something else?

If I try to suspend the process (ctrl + z) after a few minutes, I get a
message along these lines:
1 [sig] bash 471! sigpacket::process: Suppressing signal 18 to win32
process (pid 5648)

Then, I can kill that process, and then go through those steps (ctrl + z,
followed by killing the process) once more before it'll close out.

Best,
Mike

-- Code added to .profile
fetchenv() {
local IFS
IFS=
local batch=$1
shift

if ! [ -f "$batch" ]; then
echo "$batch not found"
return 1
fi

local d=$(mktemp -d /tmp/fetchenv.XX)
cmd /c set >$d/srcenv || true
cmd /c call $(cygpath -w $batch) "$@" \>nul 2\>\&1 \& set >$d/dstenv || true
sleep 2
cat <$d/envdiff
/^+++/d;
/^[^+]/d;
s/^+//;
# s///g;
/^PATH=/ {
s//\\//g;
s#\\([=;]\\)\\([a-zA-Z]\\):#\\1/cygdrive/\\2#g;
s/;/:/g;
}
s/;/;/g;
s/^/export /;
s/=/='/;
s/r//g;
s/\r$/'/;
EOF
diff -u $d/srcenv $d/dstenv | sed -f $d/envdiff >$d/diffenv
. $d/diffenv
PATH=$PATH:/bin:/usr/bin:$(cygpath --sysdir):$(cygpath --windir)
rm -fr $d || true
}

On Thu, Jul 7, 2022 at 12:41 PM Jürgen E. Fischer via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Hi Mike,
>
> On Thu, 07. Jul 2022 at 12:20:52 -0400, Mike Treglia wrote:
> > I think I might be missing some of the knowledge I need to implement this
> > for now, which is alright. For example, I'm not sure where I should start
> > adjusting things in that portion of the build_helpers script, and
> > where/when I should run that, or if I'm should modify that portion of
> > build_helpers (ln 107-143) and insert that into
> /c/OSGeo4W/bin/o4w_env.bat,
> > such that the OSGeo4W.bat file will call on the desired environment.
>
> Sorry, I was implying that you're shell savy and pointers were enough.
> Copy fetchenv to your .profile and run it from there (or once you want to
> run
> osgeo4w stuff).
>
> …
> fetchenv() {
> …
> }
>
> fetchenv /c/OSGeo4W/bin/o4w_env.bat
> …
>
> It runs cmd to get a clean copy of the environment and once more with
> o4w_env.bat to get the updated version and then works out the differences,
> makes them shell digestable and sources them to the running shell.
>
> Also works with other software that provides batch files to update the
> environment (like msvc, strawberry perl, venvs in python - just to name
> the few
> the osgeo4w build scripts use it for).
>
>
> Jürgen
>
> --
> Jürgen E. Fischer   norBIT GmbH Tel. +49-4931-918175-31
> Dipl.-Inf. (FH) Rheinstraße 13  Fax. +49-4931-918175-50
> Software Engineer   D-26506 Norden
> https://www.norbit.de
> QGIS release manager (PSC)  Germany IRC: jef on Libera|OFTC
> ___
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> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
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Re: [Qgis-user] OSGeo4W Shell with Unix-Style Terminal?

[Mike Treglia via Qgis-user]

Thanks, Jürgen, for the quick response! Much appreciated!

I think I might be missing some of the knowledge I need to implement this
for now, which is alright. For example, I'm not sure where I should start
adjusting things in that portion of the build_helpers script, and
where/when I should run that, or if I'm should modify that portion of
build_helpers (ln 107-143) and insert that into /c/OSGeo4W/bin/o4w_env.bat,
such that the OSGeo4W.bat file will call on the desired environment.

Thus, I would definitely value any more insight/guidance on this, and I can
keep working with OSGeo4W in the existing setup for now too if I need
without issue - its honestly more of a convenience item than a necessity.

Thanks again!
Mike

On Thu, Jul 7, 2022 at 10:54 AM Jürgen E. Fischer via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Hi Mike,
>
> On Thu, 07. Jul 2022 at 10:08:21 -0400, Mike Treglia via Qgis-user wrote:
> > I was hoping to use the OSGeo4W shell from a unix-style terminal - like
> git
> > bash or similar. For some things, in the past, I've added the directory
> > with binaries from the OSGeo4W install to my Windows Environment System
> > Variables for as a value in Path.
>
> Adapt fetchenv
> https://github.com/jef-n/OSGeo4W/blob/master/scripts/build-helpers#L107
> to your
> shell and fetchenv /c/OSGeo4W/bin/o4w_env.bat.  That way you should get all
> veriables the batch files setup into your environment.
>
>
> Jürgen
>
> --
> Jürgen E. Fischer   norBIT GmbH Tel. +49-4931-918175-31
> Dipl.-Inf. (FH) Rheinstraße 13  Fax. +49-4931-918175-50
> Software Engineer   D-26506 Norden
> https://www.norbit.de
> QGIS release manager (PSC)  Germany IRC: jef on Libera|OFTC
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[Qgis-user] OSGeo4W Shell with Unix-Style Terminal?

[Mike Treglia via Qgis-user]

Hi All,

First - thanks to the devs and maintainers for their quick work to resolve
the installation snag folks were encountering, and gracefully at that!

There might be a better place to ask this, but thought this might be a good
first spot to try, as I realize there are some OSGeo4W users on this list.

I was hoping to use the OSGeo4W shell from a unix-style terminal - like git
bash or similar. For some things, in the past, I've added the directory
with binaries from the OSGeo4W install to my Windows Environment System
Variables for as a value in Path. However, I've hit snags with gdal
recently, in getting a conflicting proj version, due to a concurrent
install of PostGIS. Thus, I can call gdal tools from the OSGeo4W install
via git bash, for example, but get errors regarding conflicting proj
versions.

The Windows style OSGeo4W Shell works as expected, so I can definitely use
that as is, but figured I'd see if there's a best way to do what I'm
looking for.

Best,
Mike
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Re: [Qgis-user] QGIS Density Analysis Plugin Update

[Mike Flannigan via Qgis-user]

Thank you Mr. Hamilton.  I am still using your
Lat Lon Tools plugin a lot.  We will miss you.


Mike


On 6/27/22 14:00, qgis-user-requ...@lists.osgeo.org wrote:

Date: Mon, 27 Jun 2022 13:34:08 -0400
From: C Hamilton
To: qgis-user,  qgis-developer

Subject: [Qgis-user] QGIS Density Analysis Plugin Update
Message-ID:

Content-Type: text/plain; charset="utf-8"

I recently released the Density Analysis plugin and today I had a new
update that provides a polygon raster density analysis algorithm along with
a processing algorithm to style the raster with a heatmap.

https://plugins.qgis.org/plugins/densityanalysis/

I have a very narrow window in which I can make updates to this plugin. It
meets my needs, but perhaps you might see something I have missed. I am
being reassigned from QGIS development to other projects. Unfortunately, a
certain company, who shall not be named, has ultimately prevailed even
though it is really expensive and QGIS free. I will be allowed to fix bugs
in my plugins, but no new development.

If anyone has any comments or would like something done a little
differently with the Density Analysis plugin please let me know now. Next
month, unless it is a bug, I won't be allowed to make any changes.

It has been a pleasure working with the QGIS community. You are all great.
I will miss being able to spend full time working with QGIS. Hopefully, my
contributions have provided you with some useful tools.

https://plugins.qgis.org/plugins/author/C%2520Hamilton/

I wish you all the very best!

C Hamilton


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Re: [Qgis-user] Adding a point file to QGIS version 3.16.16-Hannover (WIN 7)

[Mike Breiding - Morgantown WV via Qgis-user]

On 5/29/2022 7:10 AM, Micha Silver wrote:


Maybe you are confusing between creating a new layer and adding an 
existing layer??




Yes!
The data has now been added.
Thanks,
WV-Mike
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[Qgis-user] Adding a point file to QGIS version 3.16.16-Hannover (WIN 7)

[Mike Breiding - Morgantown WV via Qgis-user]

Greetings,
I am trying to add a point file (.shp) to a project.
I get this dialog:
https://photos.app.goo.gl/kUtkF8R1FdsBZTNW7

If I choose any of the :Geometry Type" options the file is added but not 
points are not displayed.


The data source is here:
https://data.wvgis.wvu.edu/pub/Clearinghouse/location/populatedPlaces_USGS_198105_utm83_shp.zip

What must be done to add this data to the project?

Thanks,
WV-Mike

--
Mike Breiding
www.EpicRoadTrips.us
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Re: [Qgis-user] Error export .shp to .gpx

[Mike Breiding - Morgantown WV via Qgis-user]

On 5/28/2022 7:29 PM, Thayer Young via Qgis-user wrote:


If you want to try gpx extensions you can scroll down in the QGIS 
"Export" GPX dialog, near the bottom in the "Datasource Options" you 
should change "GPX_USE_EXTENSIONS" to "yes".


There may be other plugins that others can tell you about.
-Thayer


Thanks, Thayer and all.
I was able to convert to a GPX with the instructions above.
But, now there are other problems which I will present under another topic.

WV-Mike
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Re: [Qgis-user] Error export .shp to .gpx

[Mike Breiding - Morgantown WV via Qgis-user]

On 5/28/2022 8:56 AM, Fernando M. Roxo da Motta wrote:

On Sat, 28 May 2022 08:14:13 -0400, Mike Breiding - Morgantown WV via
Qgis-user  wrote:



Greetings,
I get the following error when I try to export .shp to .gpx.
I do not understand what is meant by "Use GPX_USE_EXTENSIONS creation
option..."



See: 
https://gis.stackexchange.com/questions/40731/converting-shp-into-gpx-using-qgis


Thanks, Fernando.
Did you have a particular solution in mind? There are several listed. I 
am a newbie and all of the solutions mentioned are over my head.


I should have mentioned I am using 3.16.16-Hannover on WIN 7
Thanks,
WV-Mike



Can any help with this?
Thanks,
WV-Mike


"Export to vector file failed.
Error: Creation of field VERSION failed (OGR error: Field of name
'VERSION' is not supported in GPX schema. Use GPX_USE_EXTENSIONS
creation option to allow use of the  element.)"










   Roxo


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[Qgis-user] Error export .shp to .gpx

[Mike Breiding - Morgantown WV via Qgis-user]

Greetings,
I get the following error when I try to export .shp to .gpx.
I do not understand what is meant by "Use GPX_USE_EXTENSIONS creation 
option..."


Can any help with this?
Thanks,
WV-Mike


"Export to vector file failed.
Error: Creation of field VERSION failed (OGR error: Field of name 
'VERSION' is not supported in GPX schema. Use GPX_USE_EXTENSIONS 
creation option to allow use of the  element.)"


--
Mike Breiding
www.EpicRoadTrips.us
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Re: [Qgis-user] Activating ESRI geodatabase (.gdb) write mode in QGIS, OGR2OGR or Python

[Mike Treglia via Qgis-user]

That's correct in my experience. In the OSGeo4W installer, go through the
advanced install menu, and when you get the options for libraries, I think
searching for gdb should bring up the right one - then check the box and
proceed.

On Wed, Apr 20, 2022 at 11:22 PM Saulteau Don via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> I think in the osgeo4w installer you just have to install the gdal-filegdb
> package for that driver.
>
>
>
>
> Donovan
>
> On Wed., Apr. 20, 2022, 18:11 Nicolas Cadieux via Qgis-user, <
> qgis-user@lists.osgeo.org> wrote:
>
>> Hi,
>>
>> I am in a bit of a bind.  I am basically trying to figure out a way to
>> write some .shp file to a .gbd folder using the gbd drivers obtained
>> from ESRI. I am not sure what file to copy and where.  I am tying to
>> make this work with ogr2ogr at the dos command prompt but getting to
>> work with a anaconda python environment would be nice.
>>
>> Can the ESRI File Geodatabase API also be used write to a .gdb file
>> using QGIS?
>>
>> If you recently did this, I would appreciate some tips.
>>
>> I am on windows 10 using the OSGEO4W install with QGIS 3.24.
>>
>> https://gdal.org/drivers/vector/filegdb.html
>>
>> Thanks
>>
>> --
>>
>> Nicolas Cadieux
>> https://gitlab.com/njacadieux
>>
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Re: [Qgis-user] Problems with Qgis

[Mike Breiding - Morgantown WV via Qgis-user]

On 3/13/2022 8:13 AM, Bernd Vogelgesang wrote:
right-click somewhere in the grey area around the menu bar. A drop-down 
menu opens, with checkboxes for all kinds of panels and toolboxes.

Most probably you will have to reactivate them there


I found them but they are not docking now, they are free floating.
Thanks,
-Mike




Am 13.03.22 um 15:22 schrieb Mike Breiding - Morgantown WV:

I some how lost my Browser and Layout side bars.
Now I must try to correct this first.

I hope you have not given up on me.
WV-Mike

--
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www.EpicRoadTrips.us




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[Qgis-user] Browser and Layout side bars now hidden

[Mike Breiding - Morgantown WV via Qgis-user]

Greetings,
I have somehow made hidden the Browser Layout and side bars and now only 
the canvas is visible.

What must I do to have them visible again?

Thanks,
WV-Mike
--
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www.EpicRoadTrips.us
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Re: [Qgis-user] Automating creation of county distribution maps

[Mike Breiding - Morgantown WV via Qgis-user]

I had the range USA range map in the screen shot and have since updated 
it.  https://photos.app.goo.gl/ktn5quT6s6SRwrzBA

WV-Mike

On 3/10/2022 11:04 AM, chris hermansen wrote:
Perhaps others are better understanding how you want to visualize the 
distributions, but what I get from your description is that if you have 
100 (or 2500) species then you will have 100 (or 2500) maps, which 
sounds unwieldy to me.


I neglected to mention the use for the distribution maps.
They will be used in a print brochure.
A page mock up can be seen here:
https://photos.app.goo.gl/ktn5quT6s6SRwrzBA

The USA distribution map in the mock up was made in Qgis using the 
information from:

https://plants.usda.gov/home/plantProfile?symbol=BODI2

This is interactive and will display down to the state and county level.
However, they are not up to date at the state/county level. If they were 
I would simply make a screen shot and that would be the end of it.


The state distribution map used in the mock up was made using Qgis based 
on data from the West Virginia University Herbarium which has the most 
up to date information on distribution.


WV-Mike



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Re: [Qgis-user] Automating creation of county distribution maps

[Mike Breiding - Morgantown WV via Qgis-user]

On 3/10/2022 11:04 AM, chris hermansen wrote:
Perhaps others are better understanding how you want to visualize the 
distributions, but what I get from your description is that if you have 
100 (or 2500) species then you will have 100 (or 2500) maps, which 
sounds unwieldy to me.


I neglected to mention the use for the distribution maps.
They will be used in a print brochure.
A page mock up can be seen here:
https://photos.app.goo.gl/ktn5quT6s6SRwrzBA

The USA distribution map in the mock up was made in Qgis using the 
information from:

https://plants.usda.gov/home/plantProfile?symbol=BODI2

This is interactive and will display down to the state and county level.
However, they are not up to date at the state/county level. If they were 
I would simply make a screen shot and that would be the end of it.


The state distribution map used in the mock up was made using Qgis based 
on data from the West Virginia University Herbarium which has the most 
up to date information on distribution.


WV-Mike



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Re: [Qgis-user] Automating creation of county distribution maps

[Mike Breiding - Morgantown WV via Qgis-user]

  
  
I am so far out of
my depth here there is no measurement for it.

Thanks to all...
WV-Mike


On 3/10/2022 11:04 AM, chris hermansen wrote:
  

  
  
Mike and list,
  



  On Thu,
  Mar 10, 2022 at 5:07 AM Mike Breiding - Morgantown WV via
  Qgis-user <qgis-user@lists.osgeo.org>
  wrote:

  

  I appreciate you taking the time
  for writing such a detailed set of instructions.
  However, it is quicker for me to do it manually.
 
  If the process could be automated then of course it
  would be a different matter.
  I am working only with the ferns - less than a hundred
  records.
  The flower plants are over 2500.


  
  

  Perhaps others are better
  understanding how you want to visualize the distributions,
  but what I get from your description is that if you have
  100 (or 2500) species then you will have 100 (or 2500)
  maps, which sounds unwieldy to me.
  

  This paper https://www.sciencedirect.com/science/article/pii/S1574954116300097
  might have some interesting suggestions for you.
  

  Taken as a database design question,
  the idea of having 100 columns to record the presence or
  absence of each species is not elegant.  A more normalized
  approach would be to have your geometry table (geometry of
  counties and unique key, perhaps county name) and a
  separate table with multiple rows per county, one for each
  species present, along with the county unique key, and
  then a one-to-many table join between the two.

  

  Of course this doesn't necessarily
  help with the business of visualizing the data...

  


  
  -- 


  Chris Hermansen ·
  clhermansen "at" gmail "dot" com
  
  C'est ma façon de parler.

  
    


-- 
Mike Breiding
www.EpicRoadTrips.us
  

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Re: [Qgis-user] Automating creation of county distribution maps

[Mike Breiding - Morgantown WV via Qgis-user]

  
  
I appreciate you
taking the time for writing such a detailed set of instructions.
However, it is quicker for me to do it manually.

If the process could be automated then of course it would be a
different matter.
I am working only with the ferns - less than a hundred records.
The flower plants are over 2500.

Thanks,
WV-Mike
=
On 3/9/2022 3:46 PM, David Strip wrote:
  

  
   As first step towards building a model as
Nicolas has suggested:
I assume you have a layer with the county boundaries. Export
this layer as a CSV file, keeping only the name of each county
in the export step, and don't export the geometry.
Now open this file in your spreadsheet app of choice.
Add a new column for each plant species.
Put a one in that column for each county where the species is
present.
Save the file (still as CSV).
   
Open the county layer and the new CSV files in Ggis.
Open the properties window for the county layer and click on the
Joins tab.
Click on the "+" to add a new join. Join to the CSV layer, and
select the county names field as the join field for each.
   
Now your county layer has the plant species column.
To display a single species, open the properties window for the
county layer, select symbology. Set the symbology as rule based.
To color just those counties with species 1, your rule would say
something like Species1 = 1, where Species1 is the field name
you used. Pick a color/transparency of your choice, then set the
"all others" rules to be the background color you want.
   
That does it for one species. You can then export to tiff or
whatever. Getting it to cycle through all the different species
is for someone else to explain.
   
    

-- 
Mike Breiding
www.EpicRoadTrips.us
  

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[Qgis-user] Attachment and links used for this list.

[Mike Breiding - Morgantown WV via Qgis-user]

  
  
Apparently attachments are not permitted and
  HTML links are scrubbed.
  How does one share a graphic with the list?
  WV-Mike



  

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[Qgis-user] Automating creation of county distribution maps

[Mike Breiding - Morgantown WV via Qgis-user]

Greetings,
I want to create distribution maps by county occurrence for plant 
species found in West Virginia.


What I hope is possible is to load all the county names where a specific 
species occurs and then have a county map of West Virginia generated 
with the counties where the species occurs shaded to a particular grey 
shade and transparency.


And, while I am wishful thinking it would then be nice to have the 
output saved to a new layer and then made to a tiff file. All automated 
a much as possible.


If I do this manually I have to load the county outline and read a list 
of county occurrence and then select each one , save to a new layer, 
choose the shading color and transparency and then take a screen shot of 
the map area.


NOTE: I am newbie so if someone comes up with a way to do this I may or 
may not understand what they are talking about.



Thanks,
WV-Mike


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[Qgis-user] Automating creation of county distribution maps

[Mike Breiding - Morgantown WV via Qgis-user]

  
  
 Greetings,
  I want to create distribution maps by county occurrence for plant
  species found in West Virginia.
  
  What I hope is possible is to load all the county names where a
  specific species occurs and then have a county map of West
  Virginia generated with the counties where the species occurs
  shaded to a particular grey shade and transparency.
  
  And, while I am wishful thinking it would then be nice to have the
  output saved to a new layer and then made to a tiff file. All
  automated a much as possible.
  
  If I do this manually I have to load the county outline and read a
  list of county occurrence and then select each one , save to a new
  layer, choose the shading color and transparency and then take a
  screen shot of the map area.
  
  NOTE: I am newbie so if someone comes up with a way to do this I
  may or may not understand what they are talking about.
  
  I have attached a screen shot which I hope makes it through.
  
  Thanks,
  WV-Mike

-- 
Mike Breiding
www.EpicRoadTrips.us
 
  

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Re: [Qgis-user] Missing file: libgrass_gis.7.8.dll

[Mike Breiding - Morgantown WV via Qgis-user]

  
  
On 3/3/2022 10:21
AM, Andrea Giudiceandrea wrote:
  

  
   
  Earlier I performed a disk search with
  Everything for "libgrass_gis.7.8.dll" and there were no
  results.
  I just searched again and Everything now finds the file at:
  C:\QGIS 3.16\apps\grass\grass78\lib\libgrass_gis.7.8.dll
 
  
What about your antivirus software? It could be possible the
antivirus software may have locked/moved the file for inspection
and then released/restored it...
  

I cannot see anyway to verify this. I checked Avast but saw nothing
to indicate this is what happened.
Thanks,
    WV-Mike

 
Regards.
   
Andrea
   
  
  
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    -- 
Mike Breiding
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[Qgis-user] Missing file: libgrass_gis.7.8.dll

[Mike Breiding - Morgantown WV]

  
  
Greetings,
When I launched QGIS this morning I got the
  attached error dialog.
  However  QGIS version 3.16.16-Hannover opened and seems to be
  behaving normally.
  
  Any explanations?
  Thanks,
  WV-Mike

-- 
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www.EpicRoadTrips.us
  

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Re: [Qgis-user] Displaying county attribute names in the layers column

[Mike Breiding - Morgantown WV]

  
  
On 3/1/2022 2:53
PM, Micha Silver wrote:
  

  
  Just one other step. Click on
  the tiny arrow to the left of the layer name to "open" the
  full list.

YIPPEE!
  Thanks, Micha.
      WV-Mike


  
  
On Tue,
Mar 1, 2022, 23:28 Mike Breiding - Morgantown WV <epicroadtr...@gmail.com>
wrote:
  

  
On 3/1/2022 1:45 PM, Micha Silver
wrote:
   

  It's "Symbology" (not styles). I
  the Symbology tab, choose at the very top
  "Categorized" (instead of Single Symbol), then select
  the "COUNTY" attribute column for categories.
  You'll find this explained in the
  QGIS Documentation, here:
  https://docs.qgis.org/3.16/en/docs/user_manual/working_with_vector/vector_properties.html?highlight=categorized#categorized-renderer

I was able to Categorize them by county
  but they are not showing up in the layers column.
  There is a screen shot here.
 https://photos.app.goo.gl/3XEFgTo7bdk74dKr6
 
  Thanks.

-- 
Mike Breiding
www.EpicRoadTrips.us
  

  



-- 
Mike Breiding
www.EpicRoadTrips.us
  

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Re: [Qgis-user] Displaying county attribute names in the layers column

[Mike Breiding - Morgantown WV]

  
  
On 3/1/2022 1:45
PM, Micha Silver wrote:
  

  It's "Symbology" (not styles). I the
  Symbology tab, choose at the very top "Categorized" (instead
  of Single Symbol), then select the "COUNTY" attribute column
  for categories.
  You'll find this explained in the QGIS
  Documentation, here:
  https://docs.qgis.org/3.16/en/docs/user_manual/working_with_vector/vector_properties.html?highlight=categorized#categorized-renderer

I was able to Categorize them by county but
  they are not showing up in the layers column.
  There is a screen shot here.
  https://photos.app.goo.gl/3XEFgTo7bdk74dKr6
  
  Thanks.

-- 
Mike Breiding
www.EpicRoadTrips.us
  

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Re: [Qgis-user] Displaying county attribute names in the layers column

[Mike Breiding - Morgantown WV]

  
  
On 3/1/2022 1:11
PM, Micha Silver wrote:
  

  
   
  
  I found a shapefile of WVa counties with
  names here: https://data.wvgis.wvu.edu/pub/Clearinghouse/boundaries/wvCountiesUSCensus/

This is the data I am using.

  I set the symbology to color each county
  by name, and the county names then appear in the Layers panel.
  


I am having trouble with this.

When I highlight the layer
and right click there is no "Styling" option available.
There is a "Styles" option which is opens a color wheel of
sorts.
If I choose "Properties" I see nothing called "Styling" listed.
  
  I downloaded the manual (QGIS-3.16-DesktopUserGuide-en.pdf)
  but could not find specific instructions.
  
  Thanks,
  WV-Mike
  
  


  
 
  HTH,
  
 
  
     
  On 3/1/22 21:45,
  Mike Breiding - Morgantown WV wrote:
 
  

 I failed to mention I am using Hannover
  3.16
  WV-Mike
 
 ===
  Greetings,
  I have a state county outline layer in a project and wish to
  be able to see a list of the county names in the Layers
  column.
  I looked through the options for the Layers Properties and
  also went through the menus but I saw nothing obvious.
 
  How might I accomplish this?
  Thanks,
      WV-Mike

-- 
Mike Breiding
www.EpicRoadTrips.us



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  -- 
Micha Silver
Ben Gurion Univ.
Sde Boker, Remote Sensing Lab
cell: +972-523-665918



-- 
Mike Breiding
www.EpicRoadTrips.us
  

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[Qgis-user] Displaying county attribute names in the layers column

[Mike Breiding - Morgantown WV]

  
  
 I failed to mention I am using Hannover 3.16
WV-Mike

  ===
  Greetings,
  I have a state county outline layer in a project and wish to be
  able to see a list of the county names in the Layers column.
  I looked through the options for the Layers Properties and also
  went through the menus but I saw nothing obvious.
  
  How might I accomplish this?
  Thanks,
  WV-Mike

-- 
Mike Breiding
www.EpicRoadTrips.us
 
  

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[Qgis-user] Displaying county attribute names in the layers column

[Mike Breiding - Morgantown WV]

  
  
Greetings,
  I have a state county outline layer in a project and wish to be
  able to see a list of the county names in the Layers column.
  I looked through the options for the Layers Properties and also
  went through the menus but I saw nothing obvious.
  
  How might I accomplish this?
  Thanks,
  WV-Mike

-- 
Mike Breiding
www.EpicRoadTrips.us
  

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Re: [Qgis-user] Projection conversion

[Mike Breiding - Morgantown WV]

  
  
Greetings,
Sebastian.
I followed your instructions and changed the Project projection
to NAD27/Conus Albers which gave me the desired results as it
relates to the shape of the USA.

Thanks for your help with this.
WV-Mike
===
On 2/27/2022 12:34 PM, Sebastian Gutwein wrote:
  

  
  
Mike, 
QGIS operates on two levels: The data
level and the visualization level. If you added your US
outline to QGIS it will automatically show it to you in the
projection the data is in. If all you need is to create an
output that looks like it is in a different projection you
can change the projection of the project. This is done in
Project>Project Properties>CRS. Or look in the bottom
right hand corner for the image that looks like a world with
a hat and click to bring up the projection dialog. If you
need the actual data to be in a different projection right
click on the layer and select Export>Save Features As and
in the dialog select the desired reference system (CRS). 
  
Here is handout I created going over
this in more detail https://drive.google.com/file/d/1-FJtKGP1b2xDgswvZ3sUmAqff9S1zQS6/view?usp=sharing

  
Good luck. 
  
-Bas
  
  
  
  
  
On Sun,
Feb 27, 2022 at 1:41 PM Mike Breiding - Morgantown WV <epicroadtr...@gmail.com>
wrote:
  

   Greetings,
 
 I wish to change the
  projection of  a shape from from EPSG:4269 - NAD83
- Geographic to 
 Albers
  Equal-Area Conic projection.
  The reason for this is to get a USA states outline map
  which is shorter and higher in outline than the
  current projection for use as a graphic in a brochure.
  Thanks,
  WV-Mike
  

    -- 
Mike Breiding
www.EpicRoadTrips.us
  
  
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-- 
Mike Breiding
www.EpicRoadTrips.us
  

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[Qgis-user] Projection conversion

[Mike Breiding - Morgantown WV]

  
  
Greetings,

I wish to change the
projection of  a shape from from EPSG:4269 - NAD83 -
Geographic to 
  Albers
Equal-Area Conic projection.
  The reason for this is to get a USA states outline map which
  is shorter and higher in outline than the current projection
  for use as a graphic in a brochure.
  Thanks,
  WV-Mike
  

-- 
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www.EpicRoadTrips.us
  

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Re: [Qgis-user] Installing downloaded plugins (OSGeo4W install-download)

[Mike Breiding - Morgantown WV]

  
  
 
On 2/10/2022 12:38
AM, Andrea Giudiceandrea wrote:
   
 
So, please, don't lose heart and:
- remove and delete your previous QGIS installation and make
room on your hard disk in order to install QGIS
   
- download the "QGIS Standalone Installer Versione 3.16 (64
bit)" (QGIS-OSGeo4W-3.16.16-1-Setup-x86_64.exe), or the "QGIS
Standalone Installer Versione 3.16 (32 bit)"
(QGIS-OSGeo4W-3.16.16-1-Setup-x86.exe), depending on your
system, from the QGIS Web site download page 

OK!
  The previous versions are gone and QGIS 3.16 Hannover is installed
  including the library of plug-ins.
  It found the project I was working and it opened without problems.
  
  Now the fun begins...
  Thanks again,
  WV-Mike
     

-- 
Mike Breiding
www.EpicRoadTrips.us
 
  

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Re: [Qgis-user] Installing downloaded plugins (OSGeo4W install-download)

[Mike Breiding - Morgantown WV]

  
  
Greetings,

After 15 hours of download/installing and 4 error messages the
process is finished.
There were 7 shortcuts installed on my desktop but I cannot find
the executable to start the program.
I also checked the install directory but cannot find a way to
launch the program.
What a waste of time and all because I missed the QGIS 3.22.3 warning about Win 7 incompatibility.

OSGeo4W install-download error messages:
https://photos.app.goo.gl/FGEserH92BNmu9Cr6

It's back to ArcView 3.2 for me!

WV-Mike
===

On 2/8/2022 2:25 PM, Andrea Giudiceandrea wrote:
  
AFAIK, if you need to use QGIS on Windows 7, you
could use QGIS 3.16.16 installing it via the old OSGeo4W Network
Installer (v1) or the OSGeo4W Standalone Installer (.exe).
   
Regards.
   
Andrea
   
[1] https://qgis.org/en/site/forusers/download.html


-- 
Mike Breiding
www.EpicRoadTrips.us
  

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Re: [Qgis-user] Installing downloaded plugins

[Mike Breiding - Morgantown WV]

  
  
Hi Andrea, and
all...

On 2/8/2022 11:02 AM, Andrea Giudiceandrea wrote:
  
Hi Mike,

you have replayed to me instead of the mailing list.

  
Sorry about that!
  

What version exactly of QGIS are you using and on
what operative system?

  

  

  
QGIS version
  
  
3.22.3-Białowieża
  
  
QGIS code revision
  
  
1628765ec7
  

  

I installed QGIS about a week
ago and I am running Win 7 Pro.

From the screenshot it seem QGIS starts without
Python support. Do you see any error message in the Log Messages
Panel just after QGIS started?

  

I have not seen any error messages on start up.

https://docs.qgis.org/3.16/en/docs/user_manual/introduction/general_tools.html#log-message-panel

  

I must say I am having a difficult time with the user manual:

11.2.5. Log
Messages Panel
When loading or processing some operations, you can
  track and follow messages that appear in different tabs using the  Log Messages Panel.
  It can be activated using the most right icon in the bottom status
  bar.
Where is the Log Messages Panel? It does not say and I cannot find
it.
Thanks for your patience.
Perhaps I should re-post to the list.
WV-Mike
Regards.  
  Andrea

  
  
  



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www.EpicRoadTrips.us
  

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[Qgis-user] Installing downloaded plugins

[Mike Breiding - Morgantown WV]

  
  
Greetings,
  I downloaded a plugin.
  I read this:
10.1.
Lesson: Installing and Managing Plugins — QGIS Documentation
documentation
  
  I do not see where it explains how to install a downloaded plugin.
  
  What am I missing?
  Thanks,
  WV-Mike

-- 
Mike Breiding
www.EpicRoadTrips.us
  

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Re: [Qgis-user] Newbie: Cannot locate exercise_data folder

[Mike Breiding - Morgantown WV]

  
  
On 2/2/2022 9:16
AM, Jürgen E. Fischer wrote:
  

  Hi Mike,

On Wed, 02. Feb 2022 at 09:02:21 -0700, Mike Breiding - Morgantown WV wrote:

  
I downloaded the data set but I cannot find the " exercise_data" folder to
unzip it to.

  
  
It's in the zip:  QGIS-Training-Data-release_3.16/exercise_data/

Duh... Thanks.
  -Mike


  


Jürgen




    
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www.EpicRoadTrips.us
  

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Re: [Qgis-user] Newbie: Cannot locate exercise_data folder

[Mike Breiding - Morgantown WV]

  
  
On 2/2/2022 8:54
AM, Jürgen E. Fischer wrote:
  

  Hi Mike,

  
Download the prepared dataset from the Training data repository and

  
  
Just follow the "Training data repository" link to
https://github.com/qgis/QGIS-Training-Data/archive/release_3.16.zip
… Jürgen

Greetings,
  I downloaded the data set but I cannot find the " exercise_data"
  folder to unzip it to.
  Was this folder supposed to be created during the installation?
  Thanks,
  -Mike
  


  

    
    

-- 
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www.EpicRoadTrips.us
  

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[Qgis-user] Newbie: Cannot locate exercise_data folder

[Mike Breiding - Morgantown WV]

Greetings,
I have not used a GIS program for years. Previously I used ArcGIS 3.2

I am trying to learn the basics by loading some data following the 
instructions here:

https://docs.qgis.org/3.16/en/docs/training_manual/foreword/intro.html#data-downloadlink

I hit a snag immediately. See the last line below.
I have no "exercise_data folder".
What do I do now.
Thanks.
-Mike
=
1.2.3. Data
The sample data that accompanies this resource is freely available and 
comes from the following sources:
Streets and Places datasets from OpenStreetMap 
(https://www.openstreetmap.org/)
Property boundaries (urban and rural), water bodies from NGI 
(http://www.ngi.gov.za/)

SRTM DEM from the CGIAR-CGI (http://srtm.csi.cgiar.org/)

Download the prepared dataset from the Training data repository and 
unzip the file. All the necessary data are provided in the exercise_data 
folder.


--
Mike Breiding
www.EpicRoadTrips.us

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Re: [Qgis-user] Apple Silicon chip support status [Marketing Mail]

[Elstermann, Mike]

In runs @m1, see here:

https://geoobserver.wordpress.com/2021/01/28/qgis-postgis-mac_arm_m1/
https://geoobserver.wordpress.com/2021/10/28/qgis-3-22-postgis-14-monterey-mac_arm_m1/

Best regards, mikeE., the #geoObserver.

Am 22.11.2021 um 21:19 schrieb Thayer Young 
mailto:thaye...@yahoo.com>>:

I am wondering if anyone is successfully running QGIS on an Apple Silicon Mac? 
Or are MacOS users still using Intel machines? Thanks in advance for any advice.

Any advice on the feasibility of conversion of a “vintage” or “obsolete” Intel 
Mac to Ubuntu or other Linux is also welcome, with the goal of extending its 
useful life.

-Thayer
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Re: [Qgis-user] Create new coverage

[Mike Flannigan]

This would make more sense to me if
1 quarter degree
was changed to
1 degree

and

5 degrees in extent
was changed to
5 minutes in extent


Mike



On 11/3/21 2:00 PM, qgis-user-requ...@lists.osgeo.org wrote:

Date: Wed, 3 Nov 2021 15:54:27 +0200
From: Pat Brown
To: QGIS Mailing List
Subject: [Qgis-user] Create new coverage
Message-ID:

Content-Type: text/plain; charset="utf-8"

Hi,
   I have a shapefile which consists of a grid (polygons), each of which is
1 quarter degree in extent. I would like to create a second coverage where
each polygon is again subdivided into smaller polygons, each being 5
degrees by 5 degrees in extent. Essentially each degree square would
consist of 144 polygons.
  Appreciate any suggestions, thanks,

Paddy


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Re: [Qgis-user] Configuring QGIS server on Ubuntu 20.4

[Mike Flannigan]

Thanks for saying this.  I want to move to the QGIS server
format one day, but will hold off a bit longer.  The QGIS
people have made amazing progress.  It really is a great
product.  But maybe their growth has outstripped their resources
in a few areas.


Mike


On 9/30/21 2:00 PM, qgis-user-requ...@lists.osgeo.org wrote:

Date: Thu, 30 Sep 2021 20:17:54 +0200
From: Mats Elfstr?m
To: qgis-user
Subject: [Qgis-user] Configuring QGIS server on Ubuntu 20.4


Hi!
I am setting up a Geodata stack. I have installed PostgreSQL/Postgis and
Geoserver under Tomcat9 and FME:d a lot of data to PostGIS. All is up and
running.
Then I installed QGIS 3.20. No problems so far. Then I decided to try QGIS
server as an alternative to Geoserver. But I am having trouble configuring
QGIS server, or Apache2 rather.
Over the past 5-6 years, I have spent more time and energy than I care to
mention trying to make QGIS server run on Windows servers. Asking for
advice on those occasions, I have more than once got the advice to use
Linux instead, since no QGIS developers really know Windows servers. And
Linux would be much easier.
Fair enough. So now I am on Ubuntu, sudoing this and that and it works
pretty well.
Apart from QGIS server. I find the same mess of incomplete or contradictory
instructions. No wonder QGIS server is under-used.
If Linux(Ubuntu) is so simple, how come no one has put together a working
script to configure and deploy QGIS server on a standard setup?
I am most disappointed, having spent yet 5 hrs that I will never get back
on QGIS server.

Regards, Mats.E



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Re: [Qgis-user] Selecting Multiple Layers in a Single Click

[Mike Flannigan]

Thank you.  The Manage Map Themes is exactly what I was
looking for.  That is going to save me quite a bit of time.



Mike


On 8/23/21 3:04 AM, qgis-user-requ...@lists.osgeo.org wrote:

Date: Mon, 23 Aug 2021 10:02:07 +0200
From: Charles Dixon-Paver
To: Mike Flannigan
Cc:"qgis-user@lists.osgeo.org"  
Subject: Re: [Qgis-user] Selecting Multiple Layers in a Single Click
Message-ID:

Content-Type: text/plain; charset="utf-8"

In the table of contents, the manage map themes icon has a drop down menu
with various options for layer visibility management [1].

In the processing tools interface, a toggle selection button is available
which changes the selected layers "checked" status [2].

[1]https://imgur.com/a/jS7roE7
[2]https://imgur.com/a/Uj8eI2T



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Re: [Qgis-user] Selecting Multiple Layers in a Single Click

[Mike Flannigan]

Selecting multiple layers works good for me.  Is there any way
to unselect (uncheck) those multiple layers without having to
group them, and without having to uncheck each one individually?


Mike


On 8/20/21 4:06 PM, qgis-user-requ...@lists.osgeo.org wrote:

No, it's not a single click operation (qgis has no way to know how many
layers you want to choose). But you can use the "shift" and "ctrl"
techniques I mentioned before and click the "toggle selection" to simplify
checking multiple layers in those interfaces.

I often use the "select all" option and use the CTRL+click to deselect
unwanted layers. That makes it quicker when selecting the majority of large
layer collections.


On Fri, Aug 20, 2021 at 2:34 PM Charles Dixon-Paver 
wrote:


You can select multiple layers by selecting the first layer and holding
SHIFT, then all the other layers between those two selected should also be
selected.

You can hold the CTRL button and click a layer to toggle it's selected
status to add or remove it from the selection.

You can then add them to a group or drag their order on the ToC, but to
toggle all layer visibility you will need to use the hide/ show selected
features option from the layer visibility drop down in the layer panel.





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Re: [Qgis-user] How to identify UTM zone

[Mike Hyslop]

Hi Jean,

You cannot determine the UTM zone from a coordinate pair, as UTM
coordinates repeat across the 60 world zones. Can you ask the collaborator
for a local reference / an approximate location for the coordinates?  You
could then determine the zone by using a layer such as this:
https://apps.gis.ucla.edu/geodata/dataset/world_utm_zones/resource/fc8af8e2-0818-4f50-baf0-2cc04cbaa541

Best,
Mike

On Mon, May 24, 2021 at 8:31 AM jean Lukusa  wrote:

> Hi all.
> Someone(a non-scientist ) has sent me a point coordinates in UTM
> So I want to know how to identify its UTM zone.
>
> X 551000
> Y 8733000
>
> Jean Lukusa
> B.Sc. Geology
> Trained on Jorc  Code
> GIS  Operator
> +243812156128
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Re: [Qgis-user] QGIS for macOS Big Sur [Marketing Mail]

[Elstermann, Mike]

See here: https://geoobserver.wordpress.com/2021/01/28/qgis-postgis-mac_arm_m1/ 
:-)
mikeE., the #geoObserver

Am 15.04.2021 um 19:56 schrieb Cassia Pahim 
mailto:cpa...@gmail.com>>:

Hello! I can’t see on QGIS download options a version for an iMac OS Big Sur. 
Do you guys know how to install QGIS in that kind of computer? Thanks!!

Cassia


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Re: [Qgis-user] simple conversion question

[Mike Flannigan]

If it comes to it, you can get Geotrans software here:
https://earth-info.nga.mil/GandG/update/index.php?action=home


Mike


On 12/28/20 2:00 PM, qgis-user-requ...@lists.osgeo.org wrote:

Hello,
First time QGIS user. I'm using 3.16.1-Hannover on macOS Mojave 10.14.6. I'm 
trying to convert latitude/longitude coordinates to EPSG: 2163 US National 
Atlas Equal Area. The coordinates are 
here:https://raw.githubusercontent.com/cpb831/webscraper1/master/institutions%20to%20convert.csv.
 I would like to create a csv file with these coordinates in new projection. I 
followed the steps 
here:https://3drobotics.com/convert-lat-lon-coordinates-into-state-plane-with-qgis/.
 The new csv file just shows the original latitude/longitude coordinates. Any 
additional suggestions?
Thank you!


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Re: [Qgis-user] QGIS 3.16 Installation on Linux Mint

[Mike Flannigan]

Those instructions are what brought up this issue.
Apparently
sudo add-apt-repository "deb https://qgis.org/debian `lsb_release -c -s` 
main"

is good for Ubuntu, but not Linux Mint.  For LM use this instead:
sudo add-apt-repository "deb https://qgis.org/debian bionic main"

Right now I am using QGIS quite a bit and I can't do with out.
When I get a break I will try to get the QGGIS version 3.16
on the LM Software Manager to install.  If that doesn't work I
will follow the QuickStart procedure modified to bionic.

I have used those QuickStart procedures successfully in the past.


Mike



On 12/5/20 2:42 PM, Alexandre Neto wrote:

Why don't you follow this instructions:

https://www.qgis.org/en/site/forusers/alldownloads.html#quickstart

A sábado, 5/12/2020, 14:11, Mike Flannigan <mailto:mf...@mflan.com>> escreveu:



Thanks for this information.
I wish I could execute the 3.16.1 QGIS that Synaptic thinks I have.
I will probably uninstall via Synaptic and try to reinstall.


Mike


On 12/4/20 7:03 PM, Roderick Anderson wrote:
>
> No Flatpak expert here but I'd guess the version (executable)
> installed using flatpak falls lower in the path than the regular
> package manager does.
>
>> Synaptic package manager says I have 3.16 installed:
>> http://www.mflan.com/temp/synaptic.jpg
>> but I have looked hard and can't find it.
>> 'sudo apt-get purge QGIS' does not get rid of 3.16.
>> Software Manager says I have 3.10 Flatpak installed, but
>> not the regular 3.16.1+28bionic that is also listed in
>> the Software Manager.  If I try to install 3.16.1+28bionic
>> it fails immediately on package dependency problems.
>
> I had tried installing using Synaptic and got 2.16 so I
uninstalled it
> and used Flatpac.  Just checked and see 2.18 offered via the
package
> manager.
>
>>
>> So my system keeps updating, but I am left with only 3.10 to run.
>>
>> Perhaps Flatpak 3.16 will come along eventually.  Or maybe
>> I will uninstall 3.16 from Synaptic package manager and then
>> try to reinstall 3.16 from Software Manager or from the
>> QGIS website.
>>
>> If I did the Flatpak on this site
>> https://www.qgis.org/en/site/forusers/alldownloads.html#flatpak
>> what version would I get?
>
> I got 3.16.1-Hannover using the instructions.
>
> Here is my menu command line
>
> /usr/bin/flatpak run --branch=stable --arch=x86_64 --command=qgis
> --file-forwarding org.qgis.qgis @@ %F @@
>
> Good luck,
> Rod


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Re: [Qgis-user] QGIS 3.16 Installation on Linux Mint

[Mike Flannigan]

Thanks for this information.
I wish I could execute the 3.16.1 QGIS that Synaptic thinks I have.
I will probably uninstall via Synaptic and try to reinstall.


Mike


On 12/4/20 7:03 PM, Roderick Anderson wrote:


No Flatpak expert here but I'd guess the version (executable) 
installed using flatpak falls lower in the path than the regular 
package manager does.



Synaptic package manager says I have 3.16 installed:
http://www.mflan.com/temp/synaptic.jpg
but I have looked hard and can't find it.
'sudo apt-get purge QGIS' does not get rid of 3.16.
Software Manager says I have 3.10 Flatpak installed, but
not the regular 3.16.1+28bionic that is also listed in
the Software Manager.  If I try to install 3.16.1+28bionic
it fails immediately on package dependency problems.


I had tried installing using Synaptic and got 2.16 so I uninstalled it 
and used Flatpac.  Just checked and see 2.18 offered via the package 
manager.




So my system keeps updating, but I am left with only 3.10 to run.

Perhaps Flatpak 3.16 will come along eventually.  Or maybe
I will uninstall 3.16 from Synaptic package manager and then
try to reinstall 3.16 from Software Manager or from the
QGIS website.

If I did the Flatpak on this site
https://www.qgis.org/en/site/forusers/alldownloads.html#flatpak
what version would I get?


I got 3.16.1-Hannover using the instructions.

Here is my menu command line

/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=qgis 
--file-forwarding org.qgis.qgis @@ %F @@


Good luck,
Rod



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Re: [Qgis-user] QGIS 3.16 Installation on Linux Mint

[Mike Flannigan]

Thanks.  I am using the Flatpak ver 3.10.12 out of the LM
Software Manager.  I've been using it for quite a while and
it works great.  The problem is, my Update Manager keeps
upgrading QGIS (most recently to 3.16), but I cannot find
it or run it.  You can read the details here:
https://forums.linuxmint.com/viewtopic.php?f=47=335784

Synaptic package manager says I have 3.16 installed:
http://www.mflan.com/temp/synaptic.jpg
but I have looked hard and can't find it.
'sudo apt-get purge QGIS' does not get rid of 3.16.
Software Manager says I have 3.10 Flatpak installed, but
not the regular 3.16.1+28bionic that is also listed in
the Software Manager.  If I try to install 3.16.1+28bionic
it fails immediately on package dependency problems.

So my system keeps updating, but I am left with only 3.10 to run.

Perhaps Flatpak 3.16 will come along eventually.  Or maybe
I will uninstall 3.16 from Synaptic package manager and then
try to reinstall 3.16 from Software Manager or from the
QGIS website.

If I did the Flatpak on this site
https://www.qgis.org/en/site/forusers/alldownloads.html#flatpak
what version would I get?

Mike


On 12/3/20 2:01 AM, qgis-user-requ...@lists.osgeo.org wrote:

Sorry for the top post but I have already deleted all the previous posts
in this thread.  Hopefully my half following of the thread is correct
and the OP is having problems installing QGIS.

How about using flatpak to install.  I did on Linux Mint 19.3.  Found
the instructions at:

 https://www.qgis.org/en/site/forusers/alldownloads.html#flatpak



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Re: [Qgis-user] QGIS 3.16 Installation on Linux Mint

[Mike Flannigan]

Thanks so much.
'/etc/upstream-release/lsb-release' contains:

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04 LTS"

So that sure does answer #2 - at least the Ubuntu part of it.
System Info lists OS: "Linux Mint 19.3 Cinnamon".  Sure wish
they had "tricia" listed there too.

Oops.  /etc/os-release does list Tricia (and tricia):

NAME="Linux Mint"
VERSION="19.3 (Tricia)"
ID=linuxmint
ID_LIKE=ubuntu
PRETTY_NAME="Linux Mint 19.3"
VERSION_ID="19.3"
HOME_URL="https://www.linuxmint.com/;
SUPPORT_URL="https://forums.linuxmint.com/;
BUG_REPORT_URL="http://linuxmint-troubleshooting-guide.readthedocs.io/en/latest/;
PRIVACY_POLICY_URL="https://www.linuxmint.com/;
VERSION_CODENAME=tricia
UBUNTU_CODENAME=bionic

Thanks so much for your help.

I guess this is the best I found on the internet:
https://en.wikipedia.org/wiki/Ubuntu_version_history
Except you would use "Bionic Beaver" if you referenced that.

The Linux Mint history:
https://en.wikipedia.org/wiki/Linux_Mint_version_history
is also not exactly right.
We Linux people know that Tricia ne tricia.
Lots of holes to fall into when doing this stuff.


Mike


On 12/2/20 2:00 PM, qgis-user-requ...@lists.osgeo.org wrote:


Hi Mike,
I've used old Linux Mint versions some time ago and I remember the Ubuntu
codename was in
/etc/upstream-release/lsb-release
and/or
/etc/os-release

DISTRIB_CODENAME / UBUNTU_CODENAME variables respectively.

Could you check in your system?

Regards.

Andrea



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Re: [Qgis-user] QGIS 3.16 Installation on Linux Mint

[Mike Flannigan]

Thanks Chris, I really appreciate the response.
Sure sounds like an area that could use some improvement.
I suspect there is a good reason why Linux Mint (LM) 19.3
cannot be called bionic instead of tricia.  So first question
is how do I cross reference names and numbers (i.e. Ubuntu
bionic = 18.04).  I did some looking.  Is LXR needed for that?
I also went into 'Release' and 'InRelease' on that website, but
could not cross reference bionic to 18.04.

Second question is how do I cross reference between Ubuntu and LM?
i.e. LM 19.3 tricia is based on Ubuntu 18.04 bionic.

I'm still looking.  I will report this if I find it.


Mike


On 12/1/20 11:03 PM, chris hermansen wrote:


If you go look in https://qgis.org/debian/dists/ you will see the 
following Debian and Ubuntu dists supported:


bionic/  22-Nov-2020 18:36 -
buster/  23-Nov-2020 05:01 -
cosmic/  08-Aug-2020 20:57 -
disco/   08-Aug-2020 20:57 -
eoan/    24-Oct-2020 12:08 -
focal/   22-Nov-2020 22:37 -
groovy/  23-Nov-2020 00:15 -
jessie/  08-Aug-2020 20:57 -
precise/ 08-Aug-2020 20:57 -
stretch/ 08-Aug-2020 20:57 -
trusty/  08-Aug-2020 20:57 -
unstable/ 23-Nov-2020 09:05 -
xenial/  08-Aug-2020 20:57 -

As far as Ubuntu goes, bionic = 18.04, cosmic = 18.10, disco = 19.04, 
eoan = 19.10, focal = 20.04, groovy = 20.10, xenial = 16.04 and 
precise... wow that's 12.04 which has been unsupported since 2017.  
Well anyway.


Not to mention the Debian users which have the selection of buster, 
jessie, stretch, trusty and unstable.


Not to mention the Mint users using Ulyana which is AFAIK based on 
Ubuntu 20.04 (focal)?


So probably hardcoding it to refer only to the Ubuntu 18.04 / bionic 
distro and thereby also satisfying the Mint folks on tricia would 
cause a lot of surprise to quite a lot of users.


Also please remember that there are lots of other Ubuntu (and Debian) 
derivative distros that can likely use the appropriate Ubuntu distro.

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

C'est ma façon de parler.


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[Qgis-user] QGIS 3.16 Installation on Linux Mint

[Mike Flannigan]

Linux Mint (LM) is a fork of Ubuntu, so LM users
normally use the Ubuntu install commands located here:
https://qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu

The command on that website that has given me problems is
sudo add-apt-repository "deb https://qgis.org/debian `lsb_release -c -s` 
main"


People who know more than me say that `lsb_release -c -s` returns
"tricia", which is unknown to the QGIS repo.  Only the Linux Mint repo
knows the LM 19.3 nickname tricia. The rest of the world needs to be
given the Ubuntu nickname bionic instead, because LM 19.3 tricia is
based on Ubuntu 18.04 bionic.  So they tell me to change that command to
sudo add-apt-repository "deb https://qgis.org/debian bionic main".
That worked for me.

"So what" you may say.  We say it is for Debian and Ubuntu, not LM.
That is true, but there are apparently more Mint users than either
Ubuntu or Debian users:
https://distrowatch.com/

I just wonder if that line should be changed to
sudo add-apt-repository "deb https://qgis.org/debian bionic main"

If not, then maybe there is another way to correct this problem for
LM users.


Mike


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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] Vote for Lat Lon Tools Default Coordinate Order - YX or XY

[Mike Flannigan]

It's already a switchable option.  The question is,
what is the default if you don't select an option.


Mike


On 11/21/20 1:52 AM, qgis-user-requ...@lists.osgeo.org wrote:

How about just make it a switchable option?? I think GMT battled this
unresolvable subjectivity eons ago.
J.



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Re: [Qgis-user] Vote for Lat Lon Tools Default Coordinate Order -, YX or XY

[Mike Flannigan]

I too like lat,long, but I can live with anything that is done.
I'll just set it to lat,long.

I understand the thinking to change it to X,Y.  Many people
in the field would agree that is better.  I'm just not one of them.

I use this tool constantly.  Thank you.


Mike


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

It was suggested to me that the default coordinate order in the Lat Lon
Tools plugin for coordinate capture and zoom-to tools should be "longitude,
latitude" or "X, Y". Originally, Lat Lon Tools was designed to work with
on-line maps which are generally "latitude, longitude" order.

You can always go into the plugin settings and specify which order you want
and that order will be preserved everytime you launch QGIS. The default
order is only applicable the first time you install "Lat Lon Tools" or if
you do a reset to defaults in the Lat Lon Tools settings menu,

Who prefers Lat Lon Tools to default to "longitude, latitude" or "X, Y"
when the plugin is first installed or reset to default values?

Who prefers Lat Lon Tools to default to "latitude, longitude (Google map
order)" or "Y, X" when the plugin is first installed or reset to default
values?

I'm just checking to see if I should make this change or not.

Thanks,

Calvin



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Re: [Qgis-user] Loss of data

[Mike Flannigan]

This is a great idea if she is on Windows.
Right click on the folder and select previous versions.
Then just selectively drag and drop files from that
restored folder.

Backups - backups.  At home I have no fewer than
6 backups around me.  Even on the road I have 2 - 3
backups with me at all times.


Mike


On 11/15/20 5:56 AM, qgis-user-requ...@lists.osgeo.org wrote:

Windows has a feature called previous versions. Locate the shape files on
explorer, look for the dbf file, right click, properties and see if you
have any previous versions that you can restore.



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Re: [Qgis-user] Saving project to geopackage

[Mike Flannigan]

Well isn't that interesting.  It worked fine with the
.gpkg extension.
http://www.mflan.com/temp/simple_file.gpkg

I suspect the developers are taking note of this
little pitfall.

Now I could use some help in how to open this GeoPackage.
I have it added to GeoPackage in my Browser, but I can't
seem to make it open.

I also tried Project - Open From - GeoPackage, but no-go.

I'll do some more research on this later today.


Mike


On 11/5/20 6:20 AM, qgis-user-requ...@lists.osgeo.org wrote:

Hi Mike,
please try using a filename with .gpkg extension, so simple_file.gpkg
instead of simple_file

Regards.

Andrea Giudiceandrea



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Re: [Qgis-user] Saving project to geopackage

[Mike Flannigan]

Thanks.  I can live with those restrictions for
many of my maps, so I tried it out.  It did not
work for me for some reason.

Log says:

QGIS version: 3.10.10-A Coruña

QGIS code revision: 18698293

Qt version: 5.12.7

GDAL version: 3.0.4

GEOS version: 3.7.3-CAPI-1.11.3 b50468f

PROJ version: Rel. 6.3.1, February 10th, 2020

Processing algorithm…

Algorithm 'Package layers' starting…

Input parameters:

{ 'LAYERS' : 
['/media/mike/main1/DDrive/Gnis/2020-CA_Trip_actual-geoj.txt|layername=2020-CA_Trip_actual-geoj','/home/mike/Documents/qgis/MO_2009_County_Boundaries_shp.shp','file:///home/mike/Documents/qgis/oil-gas-wells-in-MO.csv?type=csv=1=yes=Well%20Longitude%20Decimal=Well%20Latitude%20Decimal=EPSG:4326=no=no=no','/home/mike/Documents/qgis/statep010.shp'], 
'OUTPUT' : '/home/mike/Documents/copy3/simple_file', 'OVERWRITE' : 
False, 'SAVE_STYLES' : True }


Packaging layer 1/4: 2020-CA_Trip_actual-geoj

Packaging layer failed: Opening of data source in update mode failed 
(OGR error: )


Packaging layer 2/4: MO_2009_County_Boundaries_shp

Packaging layer failed: Opening of data source in update mode failed 
(OGR error: )


Packaging layer 3/4: oil-gas-wells-in-MO

Packaging layer failed: Opening of data source in update mode failed 
(OGR error: )


Packaging layer 4/4: statep010

Packaging layer failed: Opening of data source in update mode failed 
(OGR error: )


Error obtained while packaging one or more layers.

Execution failed after 0.77 seconds

Loading resulting layers

Algorithm 'Package layers' finished



Can you see anything wrong with my layers?
Perhaps it doesn't like geojson layer either?

I had "Save layer styles into GeoPackage" selected.
I unchecked that and it still failed with almost the same
error messages:

Packaging layer 1/4: 2020-CA_Trip_actual-geoj

Packaging layer failed: Opening of data source in update mode failed 
(OGR error: )


Packaging layer 2/4: MO_2009_County_Boundaries_shp

Packaging layer failed: Opening of data source in update mode failed 
(OGR error: )


Packaging layer 3/4: oil-gas-wells-in-MO

Packaging layer failed: Opening of data source in update mode failed 
(OGR error: )


Packaging layer 4/4: statep010

Packaging layer failed: Opening of data source in update mode failed 
(OGR error: )


Error obtained while packaging one or more layers.

Execution failed after 0.73 seconds



It did create a small 74 KB file, but I suspect
it did not work.


Mike


On 11/4/20 1:35 PM, António Pestana wrote:

Bas,

Yes, Package Layers (available from the Processing Toolbox of QGIS)
seems to be the best tool available. Unfortunately it doesn't accept
raster layers (as you said) or groups of layers (very important when
you have  to manage a large number of layers). I hope these weaknesses
will disappear soon ...



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Re: [Qgis-user] Couldn't load SIP module

[Mike Flannigan]

See my write-up below on the SIP module loading problem.
I am no longer OK.  Apparently the TimeShift back
only temporarily fixes the problem.  So every plugin
available to me is this short list:
http://www.mflan.com/temp/plugins.jpg

All I can figure is most QGIS users don't use plugins
(not likely) or this problem is affecting less than
10% of QGIS users.  Otherwise I suspect this would be the
biggest issue discussed on the list.  I don't even know
what to work on - QGIS or Python.

I am on QGIS version 3.14.16-Pi.  I guess I will go forward -
to ver 3.16.0 at first, then backwards if necessary.  I would
welcome a 3.16.0 user who does not have this problem to
state that on this list.  I welcome any suggestions.

I am on Linux Mint 19.3.


Mike



On 10/29/20 3:40 PM, Mike Flannigan wrote:


I have been using QGIS a lot recently.  All of a sudden
it gives "Couldn't load SIP module", which is a Python
problem with QGIS that has been around for many years.

I TimeShifted back about 3 days and the problem is solved
for now, but I just wanted to get this recorded.

Here are a few write-ups on the problem, some very recent:


https://github.com/qgis/QGIS/issues/38310

https://github.com/qgis/QGIS/issues/30895

https://gis.stackexchange.com/questions/306595/qgis-3-4-couldnt-load-sip-module-python-support-will-be-disabled-on-windows-10 





The error message I receive is:


Couldn't load SIP module.
Python support will be disabled.


Traceback (most recent call last):
  File "", line 1, in
  File "/app/share/qgis/python/qgis/__init__.py", line 70, in
    from qgis.PyQt import QtCore
  File "/app/share/qgis/python/qgis/PyQt/QtCore.py", line 24, in
    from PyQt5.QtCore import *
ModuleNotFoundError: No module named 'PyQt5.sip'


Python version:
3.8.5 (default, Nov 10 2011, 15:00:00)
[GCC 10.2.0]

QGIS version:
3.14.16-Pi 'Pi', a235a149

Python path:
['/app/share/qgis/python', 
'/home/mike/.var/app/org.qgis.qgis/data/QGIS/QGIS3/profiles/default/python', 
'/home/mike/.var/app/org.qgis.qgis/data/QGIS/QGIS3/profiles/default/python/plugins', 
'/app/share/qgis/python/plugins', '/usr/lib/python38.zip', 
'/usr/lib/python3.8', '/usr/lib/python3.8/lib-dynload', 
'/usr/lib/python3.8/site-packages', 
'/app/lib/python3.8/site-packages', 
'/app/lib/python3.8/site-packages/numpy-1.19.2-py3.8-linux-x86_64.egg', 
'/app/lib/python3.8/site-packages/MarkupSafe-1.1.1-py3.8-linux-x86_64.egg'] 






Ignoring the error message allows QGIS to start, but then
you don't have the "Lat Lon Tools" plugin, and a few other things.

My Python versions appear to be ver 2.7, ver 3.6, ver 3.7.

Again, I am OK for now, but I hope this issue is resolved soon.



Mike





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Re: [Qgis-user] Couldn't load SIP module

[Mike Flannigan]

Thank you Frank and Antonia.


Mike


On 10/30/20 2:00 PM, qgis-user-requ...@lists.osgeo.org wrote:

Same here (Linux Mint 20). It seems a Flatpak issue. I am following this
thread:
https://github.com/flathub/org.qgis.qgis/issues/74

I have installed QGIS from conda until this is solved (
https://anaconda.org/conda-forge/qgis).

Best,
Antònia



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[Qgis-user] Couldn't load SIP module

[Mike Flannigan]

I have been using QGIS a lot recently.  All of a sudden
it gives "Couldn't load SIP module", which is a Python
problem with QGIS that has been around for many years.

I TimeShifted back about 3 days and the problem is solved
for now, but I just wanted to get this recorded.

Here are a few write-ups on the problem, some very recent:


https://github.com/qgis/QGIS/issues/38310

https://github.com/qgis/QGIS/issues/30895

https://gis.stackexchange.com/questions/306595/qgis-3-4-couldnt-load-sip-module-python-support-will-be-disabled-on-windows-10



The error message I receive is:


Couldn't load SIP module.
Python support will be disabled.


Traceback (most recent call last):
  File "", line 1, in
  File "/app/share/qgis/python/qgis/__init__.py", line 70, in
    from qgis.PyQt import QtCore
  File "/app/share/qgis/python/qgis/PyQt/QtCore.py", line 24, in
    from PyQt5.QtCore import *
ModuleNotFoundError: No module named 'PyQt5.sip'


Python version:
3.8.5 (default, Nov 10 2011, 15:00:00)
[GCC 10.2.0]

QGIS version:
3.14.16-Pi 'Pi', a235a149

Python path:
['/app/share/qgis/python', 
'/home/mike/.var/app/org.qgis.qgis/data/QGIS/QGIS3/profiles/default/python', 
'/home/mike/.var/app/org.qgis.qgis/data/QGIS/QGIS3/profiles/default/python/plugins', 
'/app/share/qgis/python/plugins', '/usr/lib/python38.zip', 
'/usr/lib/python3.8', '/usr/lib/python3.8/lib-dynload', 
'/usr/lib/python3.8/site-packages', '/app/lib/python3.8/site-packages', 
'/app/lib/python3.8/site-packages/numpy-1.19.2-py3.8-linux-x86_64.egg', 
'/app/lib/python3.8/site-packages/MarkupSafe-1.1.1-py3.8-linux-x86_64.egg']





Ignoring the error message allows QGIS to start, but then
you don't have the "Lat Lon Tools" plugin, and a few other things.

My Python versions appear to be ver 2.7, ver 3.6, ver 3.7.

Again, I am OK for now, but I hope this issue is resolved soon.



Mike


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Re: [Qgis-user] Saving project to geopackage

[Mike Flannigan]

Wow.  Clear as mud, heh?

I want to learn this with you, even though I don't have
a great need for it yet.

Does this video help?
https://freegistutorial.com/how-to-create-a-geopackage-on-qgis-3-2/

I honestly don't know because I haven't tried it yet.
But I don't like that you have to select Line Feature, or
Polygon feature, or whatever.  Seems like we just want one
geopackage for everything, right?


Mike



On 10/29/20 7:52 AM, qgis-user-requ...@lists.osgeo.org wrote:

I'm a brand new user trying to adapt my workflows to  QGIS.
I've created a project having more than twenty layers. In order to
keep things more manageable I've structured these layers using several
groups. I would like to save my project (layers, groups, formatings,
etc) and all my data using only one file and send it to one coworker
of mine. I suppose that exporting to one geopackage-type file is the
way to go. It seems to me that my needs shouldn't be uncommon but
unfortunately I don't know how to do that.

I've searched QGIS user guide with no luck. Can anyone help me?

Regards

Antonio



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Re: [Qgis-user] Problems creating an HTML web map of my project

[Mike Flannigan]

I'm not a whole lot of help, but here is what I can
tell you.

A qgis2web export worked for me on
Linux Mint 19.3 Cinnamon
QGIS 3.10.10
GDAL  version may be 2.2
Python 2.7.17
8 GB RAM

I turned off QuickMapServices.  If you need that on, let me know.
It created a 43MB directory.

The delay was about 10-15 seconds, so you might want to let
yours run for more than 3 minutes.

I could upload this thing if you need to see it.


Mike


On 10/26/20 2:00 PM, qgis-user-requ...@lists.osgeo.org wrote:

With my project settled, I have exported it to GeoPDF and would also like to 
create an HTML version.

Added qgis2web in the Plugins Manager, re-started QGIS.

When I choose Web/qgis2web/create a web map, the program gives me a spinning 
mouse for 2-3 minutes, then displays some Python errors, which are beyond my 
pay-grade.

QGIS 3.15
GDAL 3
Python 3.7
OSX High Sierra (10.13.6)
Mac mini mid 2011
2.3 ghz i5
16 GB RAM


Attached is a file of the errors. Grateful for any pointers.



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Re: [Qgis-user] Road Labels

[Mike Flannigan]

Thank you Thayer and Richard.

The Openrouteservice.org GUI map did not work for
my Firefox.


Graphhopper is nearly perfect for what I want, and
I really appreciate you bringing it to my attention.
It's going to save me quite a bit of time.
This is the link I am using:
https://graphhopper.com/maps/

The GPX export of the track is exactly what I need.
The GUI is great.  I rarely have more than a dozen
intermediary points along the track, so I'll probably
just create the URL I need to get the output I need.
Or maybe I will dive into the API, but I hate these
API keys that always seem to be turned off, and I'm
supposed to beg for another one.

QuickOSM appears to have a lot of promise too.
It's on my list to investigate.


Thanks again.


Mike



On 10/22/20 8:07 AM, qgis-user-requ...@lists.osgeo.org wrote:

  Hi Mike,
I am glad this helped you.
I am going to punt on this since a similar question about how to do routes in 
QGIS was asked recently, and I think it received some answers, you should be 
able to find it on the QGIS-user Nabble archive.
That said, my initial thought is that instead of using Google you might want to 
do your routing on websites or API's that are based directly on OSM data, for 
example Graphhopper or Openrouteservice.org that will allow you to export 
routes as GPX. You can then use Douglas Peuker to simplify. If you are looking 
for a more automated way of doing this you may want to dig into the API's for 
those sites.
-Thayer


From: Richard Duivenvoorde 

Totally unaware of the exact contents of this thread... but I know there 
is a plugin: QuickOSM in our repo:


https://plugins.qgis.org/plugins/QuickOSM/

and I could 'just copy/run' this query in the email and it is loaded in 
QGIS?


Regards,

Richard Duivenvoorde

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Re: [Qgis-user] Road Labels

[Mike Flannigan]

Thanks for this procedure Thayer.
I use Overpass Turbo to plot tracks along roads.  It is somewhat
of a complicated process, but it works.  Perhaps I should be
using QGIS to do this instead.

But since I currently reply on the Overpass Turbo website, I am
looking for an alternate website that does the same thing.  I want
to prepare for the day when Overpass Turbo disappears (or moves).

So this email is a 2 part question.

1) Are there any other websites that do what the Overpass Turbo website 
does?


2) Do you have any suggestions on a better way to get a track plot along
roads, when you feed the program just a few vertexes along the road route?

My convoluted procedure to get tracks along roads is shown below.


Mike



THE New Procedure for Tracks is:

Create a text file with DD lat/longs that looks like this:
38.891953, -94.714428
39.961945, -95.788242
42.263043, -96.481528
42.874940, -97.140297
43.095141, -98.332987

This is generally created from taking each point from Google Maps.


Then run googmaptrack.pl to create a google maps URL like this:
https://www.google.com/maps/dir/38.891953,-94.714428/39.961945,-95.788242/42.263043,-96.481528/42.874940,-97.140297/43.095141,-98.332987


Paste that URL into a browser and make sure it is the correct route.
If not, add more intermediary points to correct the route.


Then run trackosrm.pl to create a bunch of terminal commands that
curl an OSRM URL like this:
curl 
'http://router.project-osrm.org/route/v1/driving/-104.062500,46.498392;-94.714428,38.891953?alternatives=false=nodes' 
>/home/mike/Documents/copy5/procout01.txt


Paste the whole string of terminal commands into a terminal to create
all the procoutXX.txt files.


Then use trackosrm2.pl to process those procoutXX.txt files
to extract all of the node numbers to nodes.txt.  It will
create an output that looks like this:

[out:json];
(
  node(77927832);
  node(77927830);
  node(77927828);
  node(77927826);
);
(._;>;);
out;

YOU NEED TO ADD THOSE FIRST 2 LINES AND LAST 3 LINES.


Then paste all those nodes and to this website:
http://overpass-turbo.eu/

Hit the Run button at the upper left.

Then hit the "Data" tab at the upper right and copy and paste the data 
supplied

into a file like latlong.txt.

Use garminfile.pl to extract the lat/longs to TopoUSA format.


Unfortunately, curl does not keep the items in order.  So we need
to change the trackosrm.pl 'out' file above that looks like this:
curl 
'http://router.project-osrm.org/route/v1/driving/-118.799440,37.663330;-118.592720,37.671850?alternatives=false=nodes' 
>/home/mike/Documents/copy5/procout01.txt
curl 
'http://router.project-osrm.org/route/v1/driving/-118.592720,37.671850;-116.855740,38.125510?alternatives=false=nodes' 
>/home/mike/Documents/copy5/procout02.txt


and change it to this:

firefox 
'http://router.project-osrm.org/route/v1/driving/-118.799440,37.663330;-118.592720,37.671850?alternatives=false=nodes'
firefox 
'http://router.project-osrm.org/route/v1/driving/-118.592720,37.671850;-116.855740,38.125510?alternatives=false=nodes'


by using this:
find /home/mike/Documents/copy3 -maxdepth 1 -type f -iname 
"track2_out.txt" -exec grep -il -Z "driving" {} \; | xargs -0 perl 
-i.bak -pnwe 's/curl\s(.*) >.*/firefox $1/g'



Then copy each firefox command into the terminal and copy the web page 
output

into an 'order.txt' file, remove the beginning and ending lines, so we only
have the node lines.  Then do a search and replace - search for 
"^\d+\s+" and

replace with nothing.

So order.txt has nothing but node numbers (in order) in it.

Then use trackorder.pl to reorder all the procout.txt files created above.


Then use trackreduce.pl to reduce the number of points with the Douglas 
- Peucker algorithm.



Then use geojson.pl to create a geojson file to use in QGIS to see what 
the track looks like.





On 10/20/20 5:37 PM, qgis-user-requ...@lists.osgeo.org wrote:

  Hi Wanda,
There are ways of filtering Open Street Map data before you download it, so the 
processing is done on the server not on your computer, so that should help you 
avoid crashes in QGIS.
One way to do this is with Overpass Turbo (https://overpass-turbo.eu) to select 
all of the roads in the map view.
Overpass Turbo
0) Close applications that you do not need, and open a web browser.1) Go to the Overpass Turbo website and use the search and zoom controls 
to adjust the map to your area of interest. 2) Then copy and paste the sample query into the text area to the left side of the map window. 
3) Then click on the "Run" button at the top left.4) After it runs for a while it will probably say "Large Amounts of 
Data"  and ask you if you want to continue, click "continue anyway".     Rockford indeed is small and does not have this 
problem, but Grand Rapids for example gives 30 MB of data, 60 MB may cause an error.5) Click on Export (third button from the left at the 
top). 6)

Re: [Qgis-user] Projections

[MIKE MCGRADY]

As far as I can recall, few studies of long-distance migratory species state 
what projections are used.  Is there any published study of the effect of 
projections on analyses of animal movement?

M

M. J. McGrady
Am Rosenhugel 59
A-3500 Krems
Austria


From: Qgis-user  on behalf of Hernán De 
Angelis 
Sent: Thursday, October 22, 2020 6:57 AM
To: qgis-user@lists.osgeo.org 
Subject: Re: [Qgis-user] Projections


Mike


For measuring the kind of distances you are mentioning I would suggest using 
ellipsoidal (geodetic) distances rather than projected distances. This is 
because projected distances can become very inaccurate over large regions 
(depending on the particular projection of course).


If measuring areas is important consider an equal area projection, like Albers 
for example, not a conformal one like Lambert.


Hope this helps.


/H.




On 2020-10-22 07:43, MIKE MCGRADY wrote:
I have data on tracked migratory birds, and want accurate measures of distance 
travelled during migration and areas of summering and wintering ranges.  These 
birds are summering in central Asia (mostly Kazakhstan and southern Russia), 
and wintering in Arabia.  Any advice on which projection to use?  My guess is 
Lambert conformal conic.  I'd really like to avoid using different projections 
for different phases of the birds' annual cycle, unless absolutely necessary.

M. J. McGrady
Am Rosenhugel 59
A-3500 Krems
Austria



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[Qgis-user] Projections

[MIKE MCGRADY]

I have data on tracked migratory birds, and want accurate measures of distance 
travelled during migration and areas of summering and wintering ranges.  These 
birds are summering in central Asia (mostly Kazakhstan and southern Russia), 
and wintering in Arabia.  Any advice on which projection to use?  My guess is 
Lambert conformal conic.  I'd really like to avoid using different projections 
for different phases of the birds' annual cycle, unless absolutely necessary.

M. J. McGrady
Am Rosenhugel 59
A-3500 Krems
Austria
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[Qgis-user] QGIS Update Does Not Work

[Mike Flannigan]

Duplicate post - this one with correct links:


I am on Linux Mint 19.3 Cinnamon.
When I try to update QGIS with the Update Manager from
ver 3.10.10 to 3.14
http://www.mflan.com/temp/update1.jpg

It first gave this error:
http://www.mflan.com/temp/qgis_error1.jpg

But now it gives this error every time:
http://www.mflan.com/temp/qgis_error2.jpg

I changed the local repository and still get the
same error.

My ver 3.10.10 works fine, so this is not a big
deal to me.  I just thought I would mention it
hear in case it is a problem for others besides me.

I successfully updated my main machine to ver 3.14
more than a month ago, so perhaps this is just a
recent error that has developed.


Mike


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[Qgis-user] QGIS Update Does Not Work

[Mike Flannigan]

I am on Linux Mint 19.3 Cinnamon.
When I try to update QGIS with the Update Manager from
ver 3.10.10 to 3.14
http://www.mflan.com/temp/update1.jpg

It first gave this error:
http://www.mflan.com/temp/qgis error1.jpg

But now it gives this error every time:
http://www.mflan.com/temp/qgis error2.jpg

I changed the local repository and still get the
same error.

My ver 3.10.10 works fine, so this is not a big
deal to me.  I just thought I would mention it
hear in case it is a problem for others besides me.

I successfully updated my main machine to ver 3.14
more than a month ago, so perhaps this is just a
recent error that has developed.


Mike



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