[Qgis-user] updating merged layers

2019-04-21 Thread Boaz Bar Ilan
hi

I merged 2 layers with the merge layer tool

when I change a value in one of the fields of the source layer it doesn't
updated in the merged one
is there a  way to update it ?

thanks

boaz
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[Qgis-user] State of the Map Conference

2019-04-21 Thread El yusuf Suleiman
Dear all,
Sorry for cross posting

State of the Map Africa is accepting applications for its annual state of
the map Africa conference in Grand Bassam, Ivory coast from 22 -24 November
2019. This year Theme " Transforming lives through mapping" will attempt to
showcase achievement of open mapping and mobile technologies to advancing
economic development and growth of African continent. So whether you are
working on a mapping projects, or you have an idea that resonates with the
theme, submit your proposal by 31st May, 2019 via
https://forms.gle/wYVXjfej5DWgktjZ8. We also have a limited numbers of
scholarship to attend. Submit your application for scholarship by 21st May,
2019 via https://forms.gle/NF4PDR8CuAitX4dh8 . For general inquiry kindly
visit the conference website https://2019.stateofthemap.africa for more
information. Please share also with your networks .
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[Qgis-user] Qgis 3.6.2 crashes at statup with qdraw.

2019-04-21 Thread Fernando M. Roxo da Motta


  Hi all,


  Yesterday I have upgraded Qgis to 3.6.2.   When I tried to open it up
after upgrade it just crashed with:

QGIS died on signal 11Could not attach to process.  If your uid matches
the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user.  For more details,
see /etc/sysctl.d/10-ptrace.conf
ptrace: Operação não permitida.   (Trans: Operation not allowed)
No thread selected
No stack.
gdb returned 0
Aborted

  Tracking through plugins (the usual suspects) I found that the
'qdraw' was the causing the problem.   I removed the plugin and
reinstalled it from plugin manager.   The installation was successful,
but closing and reopening qgis it crashed again.

  In order to get the crash messages in English, instead of Portuguese,
I started qgis as:

$ LC_ALL=C qgis

And it started without a problem, even with qdraw plugin installed.   I
suspect that it can have some relation to internalization code.

  Did anyone experienced this problem?

  The environment:

$ lsb_release -a
LSB Version:
core-9.20170808ubuntu1-noarch:security-9.20170808ubuntu1-noarch
Distributor ID: Ubuntu Description:Ubuntu 18.04 LTS
Release:18.04
Codename:   bionic

PPA:
deb http://qgis.org/debian bionic main

Qgis About:
QGIS version  3.6.2-Noosa
QGIS code revision656500e
Compiled against Qt   5.9.5
Running against Qt5.9.5
Compiled against GDAL/OGR 2.2.3
Running against GDAL/OGR  2.2.3
Compiled against GEOS 3.6.2-CAPI-1.10.2
Running against GEOS  3.6.2-CAPI-1.10.2 4d2925d6
PostgreSQL Client Version 10.7 (Ubuntu 10.7-0ubuntu0.18.04.1)
SpatiaLite Version4.3.0a
QWT Version   6.1.3
QScintilla2 Version   2.10.2
PROJ.4 Version493

  Best regards.


  Roxo

-- 
 Non luctari, ludare ---+ WYSIWYG
Fernando M. Roxo da Motta   | Editor?
Except where explicitly stated I speak on my own behalf.|  VI !!
PU5RXO  | I see text,
 Quis custodiet ipsos custodes?-+ I get text!
 
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[Qgis-user] Cartograms in QGIS 3

2019-04-21 Thread Jonathan Moules

Hi List,

Does anyone have any suggestions for how to simply create a Cartogram in 
QGIS 3? I've tried the Cartogram3 plugin 
(https://github.com/austromorph/cartogram3) but the output is visually 
near-identical to the input, even up to 50 iterations.


The data is a (geopackage) world map of countries with integer values of 
0 to 230,000.


I've tried googling around but many of the results are for QGIS 2.

Thanks,

Jonathan


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