[Qgis-user] Attribute table issue

[Lester Anderson via Qgis-user]

Hello all,

I had to apply a "fix geometries" on a shapefile which worked fine.
However, it appears to move the fixed elements to the top of the table and
as a result the sequence is out of order, e.g.:


[image: image.png]
Is it possible to put things back in the correct order (by ID); 12 and 13
should be the last rows ?

Thanks

Lester
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[Qgis-user] QGIS 3.26 Elevation profile/cross section tool deep dive - live today

[Nyall Dawson via Qgis-user]

Hi all,

Later today (May 13), at 19:30 AEST (GMT+10) / 11:30 CEST I'll be
doing an in-depth live exploration of all the new elevation
profile/cross section functionality coming in QGIS 3.26. Tim Sutton
will be joining me, so it's guaranteed to be an educational &
entertaining session!

You can tune in live here https://youtu.be/AknJjNPystU (a recording
will also be made available after the event).

Regards,
Nyall
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Re: [Qgis-user] Configuration for PostgreSQL

[Richard Duivenvoorde via Qgis-user]

Hi,

This is just the way the Linux install's software.
I think you installed only postgres-server...

And yes you probably need a lot of header files (often residing the in the 
'*-dev' packages).

But have a look into:

https://github.com/qgis/QGIS/blob/master/INSTALL.md

There is a lot of info to compile it on Debian or Ubuntu, including the full 
apt-get line to get all the dependencies:

https://github.com/qgis/QGIS/blob/master/INSTALL.md#33-install-build-dependencies
(pick the focal line)

A question: do you really want to compile yourself? Or do you just want to run 
QGIS?
Because, if the last: 
https://qgis.org/en/site/forusers/alldownloads.html#quickstart

FYI: my line to build/install master (I'm on Debian), after you checked out 
from git. From withing the ~/git/qgis folder:

 # MASTER DEBUG with server and 3D in ~/bin/qgis_
 mkdir build;cd build;ccmake -GNinja -DBUILD_TESTING=FALSE -DENABLE_TESTS=OFF 
-DWITH_SERVER=TRUE -DWITH_3D=TRUE 
-DCMAKE_INSTALL_PREFIX=~/bin/qgis_/master/debug -DWITH_QWTPOLAR=OFF 
-DCMAKE_BUILD_TYPE=Debug 
-DQT5_3DEXTRA_LIBRARY=/usr/lib/x86_64-linux-gnu/libQt53DExtras.so 
-DWITH_GRASS=TRUE -DGRASS_PREFIX7=/usr/lib/grass78 ..

Hope this helps.

Regards,

Richard Duivenvoorde


On 5/12/22 15:09, vicentesmith via Qgis-user wrote:

Hello,
I'm new to QGIS and this is my first try at installing it (using cmake). My 
system is running Ubuntu 20.04 so I used /apt/ to install PostgreSQL. /apt/ 
decided that the way to go was to install all the components at the 
/usr/lib/postgresql/12 subdirectory, where it created 2 subdirectories bin and 
lib, but not include. I modified the cmake menu accordingly:
  POSTGRESQL_PREFIX                /usr/lib/postgresql/12
  POSTGRES_CONFIG                  /usr/lib/postgresql/12/bin/pg_config
  POSTGRES_CONFIG_PREFER_PATH      /usr/lib/postgresql/12/bin
  POSTGRES_INCLUDE_DIR             /usr/include/postgresql
  POSTGRES_LIBRARY                 /usr/lib/postgresql/12/lib
However, the configuration still fails with:
  Could NOT find PostgreSQL (missing: PostgreSQL_LIBRARY PostgreSQL_INCLUDE_DIR)
  Found PostgreSQL: /usr/lib/postgresql/12/lib
This makes sense because (1) I'm not really telling it which library to load 
and (2) there is no /usr/include/postgresql subdirectory (although I could 
manually create /usr/lib/postgresql/12/include). Just for completion, the 
/usr/lib/postgresql/12/lib subdirectory has the following files:
_int.so              dict_xsyn.so lo.so plpgsql.so 
           utf8_and_euc_jp.so
adminpack.so earthdistance.so ltree.so 
              postgres_fdw.so       utf8_and_euc_kr.so
amcheck.so           euc2004_sjis2004.so moddatetime.so 
refint.so             utf8_and_euc_tw.so
ascii_and_mic.so     euc_cn_and_mic.so pageinspect.so seg.so 
               utf8_and_gb18030.so
auth_delay.so        euc_jp_and_sjis.so passwordcheck.so 
sepgsql.so            
utf8_and_gbk.so
auto_explain.so      euc_kr_and_mic.so      pg_buffercache.so sslinfo.so 
           utf8_and_iso8859.so
autoinc.so           euc_tw_and_big5.so     pg_freespacemap.so 
tablefunc.so          utf8_and_iso8859_1.so
bitcode              file_fdw.so            pg_prewarm.so tcn.so 
               utf8_and_johab.so
bloom.so fuzzystrmatch.so       
pg_stat_statements.so  test_decoding.so      utf8_and_sjis.so
btree_gin.so hstore.so              pg_trgm.so             
tsm_system_rows.so    utf8_and_sjis2004.so
btree_gist.so        insert_username.so     pg_visibility.so       
tsm_system_time.so    utf8_and_uhc.so
citext.so isn.so pgcrypto.so 
unaccent.so           utf8_and_win.so
cube.so              latin2_and_win1250.so pgoutput.so 
           utf8_and_ascii.so uuid-ossp.so 
cyrillic_and_mic.so  latin_and_mic.so pgrowlocks.so       
   utf8_and_big5.so
dblink.so libpqwalreceiver.so 
pgstattuple.so         
utf8_and_cyrillic.so
dict_int.so llvmjit.so pgxml.so             
  utf8_and_euc2004.so
dict_snowball.so     llvmjit_types.bc       pgxs                   
utf8_and_euc_cn.so

My questions are which library(ies) QGIS needs for building and if QGIS also 
needs any header from PostgreSQL. Thanks.

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[Qgis-user] Configuration for PostgreSQL

[vicentesmith via Qgis-user]

Hello,
I'm new to QGIS and this is my first try at installing it (using cmake). My 
system is running Ubuntu 20.04 so I used apt to install PostgreSQL. apt decided 
that the way to go was to install all the components at the 
/usr/lib/postgresql/12 subdirectory, where it created 2 subdirectories bin and 
lib, but not include. I modified the cmake menu accordingly:
POSTGRESQL_PREFIX /usr/lib/postgresql/12
POSTGRES_CONFIG /usr/lib/postgresql/12/bin/pg_config
POSTGRES_CONFIG_PREFER_PATH /usr/lib/postgresql/12/bin
POSTGRES_INCLUDE_DIR /usr/include/postgresql
POSTGRES_LIBRARY /usr/lib/postgresql/12/lib
However, the configuration still fails with:
Could NOT find PostgreSQL (missing: PostgreSQL_LIBRARY PostgreSQL_INCLUDE_DIR)
Found PostgreSQL: /usr/lib/postgresql/12/lib
This makes sense because (1) I'm not really telling it which library to load 
and (2) there is no /usr/include/postgresql subdirectory (although I could 
manually create /usr/lib/postgresql/12/include). Just for completion, the 
/usr/lib/postgresql/12/lib subdirectory has the following files:
_int.so dict_xsyn.so lo.soplpgsql.so utf8_and_euc_jp.so
adminpack.soearthdistance.soltree.so postgres_fdw.so utf8_and_euc_kr.so
amcheck.so euc2004_sjis2004.so moddatetime.sorefint.so utf8_and_euc_tw.so
ascii_and_mic.so euc_cn_and_mic.so pageinspect.soseg.so utf8_and_gb18030.so
auth_delay.so euc_jp_and_sjis.so passwordcheck.sosepgsql.so utf8_and_gbk.so
auto_explain.so euc_kr_and_mic.so pg_buffercache.so sslinfo.so 
utf8_and_iso8859.so
autoinc.so euc_tw_and_big5.so pg_freespacemap.so tablefunc.so 
utf8_and_iso8859_1.so
bitcode file_fdw.so pg_prewarm.so tcn.so utf8_and_johab.so
bloom.sofuzzystrmatch.so pg_stat_statements.so test_decoding.so utf8_and_sjis.so
btree_gin.so hstore.so pg_trgm.so tsm_system_rows.so utf8_and_sjis2004.so
btree_gist.so insert_username.so pg_visibility.so tsm_system_time.so 
utf8_and_uhc.so
citext.soisn.sopgcrypto.sounaccent.so utf8_and_win.so
cube.so latin2_and_win1250.so pgoutput.so utf8_and_ascii.so uuid-ossp.so
cyrillic_and_mic.so latin_and_mic.so pgrowlocks.so utf8_and_big5.so
dblink.solibpqwalreceiver.sopgstattuple.so utf8_and_cyrillic.so
dict_int.so llvmjit.sopgxml.so utf8_and_euc2004.so
dict_snowball.so llvmjit_types.bc pgxs utf8_and_euc_cn.so

My questions are which library(ies) QGIS needs for building and if QGIS also 
needs any header from PostgreSQL. Thanks.___
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Re: [Qgis-user] add strava heatmap to QGIS

[Hugh Kelley via Qgis-user]

worked like a charm! Thanks so much for spending time on this!

Hope you're having a good week

hugh

* In case anyone else is following, i think i missed a url parameter I was
including because of how long it was. The url that I ended up using was

https://heatmap-external-a.strava.com/tiles-auth/all/hot/{z}/{x}/{y}.png?Key-Pair-Id=LONG_STRING=LONGER_STRING

On Wed, May 11, 2022 at 3:12 PM Ujaval Gandhi 
wrote:

> Hi Hugh,
>
> I made it work successfully in QGIS. The URL needs slight tweaking as
> follows
>
>
> https://heatmap-external-a.strava.com/tiles-auth/all/hot/{z}/{x}/{y}.png?Key-Pair-Id=LONG_STRING
>
> Pro Tip: Use View -> Panels -> Debugging /Development Tools to see the
> network request that QGIS is sending out. It helped figure out the correct
> url.
>
>
>
>
> On Fri, May 6, 2022 at 9:22 PM Hugh Kelley via Qgis-user <
> qgis-user@lists.osgeo.org> wrote:
>
>> Hi,
>>
>> I'm hoping to add the strava global heatmap as a tile layer in QGIS.
>>
>> I've done this successfully in the OSM JOSM and ID Editors without a
>> problem. this set of instructions/browser plugin is super helpful.
>> https://github.com/zekefarwell/josm-strava-heatmap
>>
>> without sharing my credentials, the url is just:
>>
>> https://heatmap-external-{switch:a,b,c}.
>> strava.com/tiles-auth/all/hot/{zoom}/{x}/{y}.png?Key-Pair-Id=ID_STRING=VERY_LONG_STRING
>> 
>>
>>
>> It seems that I should be able to plug the same url into the QGIS  as an
>> xyz layer, but when I do it doesn't work. There's no error or warning, just
>> a blank map window. I tried including my strava login in the credentials
>> section but this didn't do anything and isn't necessary in the JOSM or ID
>> editors.
>>
>> Just wondering if anyone can think of any further fixes to try or has
>> successfully done this themselves. The heatmap api has changed a bit in the
>> past couple years so what worked in the past may not work correctly today.
>>
>> Thanks!
>>
>> Hugh
>>
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>

-- 
Hugh Kelley
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[Qgis-user] QgsField with unlimited text only 32767 characters long

[Marco Lechner via Qgis-user]

Hi,

when creating an attribute field for a memory layer the “unlimited” length 
seems to be limited to 32767 characters. I do

QgsField("history", QVariant.String, typeName='text', len=-1)

Is it possible, how?, to create an attribute field without this limit?

Regards
Marco

i.A. Dr. Marco Lechner
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Re: [Qgis-user] Using Grass7 r.stream.order on QGIS 3.24

[Rijyuta Kaabaadee via Qgis-user]

Thank you for responding.

We are writing a python plugin for QGIS. This plugin intends to use
r.stream.order to get previous and next stream segments for a stream
network.
It will be better if the r.stream.order can be used within QGIS.

Your suggestion is also worth considering and I am looking at
https://grasswiki.osgeo.org/wiki/GRASS_and_Python to explore further in
that direction.

Regards,
Rijyuta

On Thu, May 12, 2022 at 12:38 PM Micha Silver  wrote:

> I think that the processing toolbox does not automatically create a new
> algorithm for GRASS modules added to GRASS.
>
> May I ask why not to run r.stream.order from GRASS directly?
>
>
> On 5/11/22 13:37, Rijyuta Kaabaadee via Qgis-user wrote:
>
> Hello QGIS community,
>
> I have recently started using QGIS. I am using QGIS 3.24 on Ubuntu 20.04.
> I want to use the r.stream.order tool from the grass7 provider in the QGIS
> processing toolbox. However this tool is not visible in the toolbox. So I
> followed the documentation:
> https://docs.qgis.org/3.22/en/docs/training_manual/grass/grass_setup.html
> to get a working grass7 shell. From this shell I was able to install
> r.stream.order using g.extension. It was installed successfully in
> ~/.grass7/addons/bin/r.stream.order. Even after restarting the QGIS
> application, r.stream.order is not visible in the processing toolbox.
> Has anyone faced a similar issue before?
>
> Regards,
> Rijyuta
>
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>
> --
> Micha Silver
> Ben Gurion Univ.
> Sde Boker, Remote Sensing Lab
> cell: +972-523-665918https://orcid.org/-0002-1128-1325
>
>
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[Qgis-user] New objectid numbers after using DIFFERENCE

[Thomas Struller via Qgis-user]

Hallo Keith,

go to your attribute table, use there the field calculator tool, create a new 
column id with  @row_number. Than you got a new object id for every object. 
Hope that helps because I use the german layout for qgis and tried to translate 
it for you.

Regards
Thomas


Mit freundlichen Grüßen


Thomas Struller
Diplom Geologe (Univ.), BDG, V18

Sachverständiger nach BBodSchG §18,
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www.LGA-geo.de

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Re: [Qgis-user] Using Grass7 r.stream.order on QGIS 3.24

[Micha Silver via Qgis-user]

  
  
I think that the processing toolbox does not
automatically create a new algorithm for GRASS modules added to
GRASS.
May I ask why not to run r.stream.order from GRASS
directly?


On 5/11/22 13:37, Rijyuta Kaabaadee via
  Qgis-user wrote:


  
  
Hello QGIS community,


I have recently started using QGIS. I am using QGIS 3.24 on
  Ubuntu 20.04. 

I want to use the r.stream.order tool from the grass7
  provider in the QGIS processing toolbox. However this tool is
  not visible in the toolbox. So I followed the documentation: https://docs.qgis.org/3.22/en/docs/training_manual/grass/grass_setup.html
  to get a working grass7 shell. From this shell I was able to
  install r.stream.order using g.extension. It was installed
  successfully in ~/.grass7/addons/bin/r.stream.order. Even
  after restarting the QGIS application, r.stream.order is not
  visible in the processing toolbox. 

Has anyone faced a similar issue before? 



Regards,
Rijyuta

  
  
  
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-- 
Micha Silver
Ben Gurion Univ.
Sde Boker, Remote Sensing Lab
cell: +972-523-665918
https://orcid.org/-0002-1128-1325
  

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