Re: [Qgis-user] Geophysical Processing

[Lester Anderson]

Hi Grant,

As a potential fields geophysicist myself, I often do all my
processing using GMT or Mirone,both of which can be used to compute
derivatives via grdfft, including directional and differential RTP
(for your mag). GMT can work with a number of data formats but
primarily netCDF; Mirone has a few more import options for grids.

Getting grids into QGIS is either via GeoTIFF or using a grid format
that works between GMT and QGIS, which is for 2.10 at least, the older
"classic" GMT grid format.

I would certainly suggest working with GMT ( http://gmt.soest.hawaii.edu/ ).

Lester

On 3 February 2016 at 02:38, Grant Boxer  wrote:
> I have a total magnetic intensity image and would like to create a first
> vertical derivative of the image. I have found the hillshade, slope and
> aspect operations and wondered what is the best to use as 1VD process?
>
>
>
> Grant Boxer
>
> Consultant Geologist (FAIG R.P. Geo)
>
> Perth, Western Australia
>
>
>
>
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Re: [Qgis-user] New Shapefile Features Fail to Save

[Springfield Harrison]

Thanks for those ideas.  I can check off most of those items except
upgrading.  This is new development so likely computer based?  Rather than
QGIS.

I'll look at the bug reports; this is a pretty serious error.   Thank you .
. . . . .

Cheers . . . . .   Spring
Samsung Tab 4
On Feb 2, 2016 7:15 PM, "Nicolas Cadieux" 
wrote:

> Hi,
> I have done this in the past without errors in QGIS.  I would upgrade to
> the latest version. Then to figure out where the problem is, I would:
>
> Make sure that both layer are polygon layers (and not lines and polygons),
> that both have the same CRS (along with the project CRS), that both have
> the same fields and that the "receiving layer" is in editing mode, and
> saved subsequently. I would limited the amount of open files and open
> plugins.
>
> Try  copying polygons from a newly created file to an empty newly created
> layer in QGIS and not a shapefile that was previously manipulated in other
> softwares.  All this could help you find the source of the problem.
>
> I would also look at the bug reports to see if it is an issue for that
> version.
>
> Hope this helps.
>
> Nicolas Cadieux M.Sc.
> Les Entreprises Archéotec inc.
> 8548, rue Saint-Denis Montréal H2P 2H2
> Téléphone: 514.381.5112  Fax: 514.381.4995
> www.archeotec.ca
> On Feb 2, 2016 8:46 PM, "Springfield Harrison [via OSGeo.org] " <[hidden
> email] > wrote:
>
> Hello Group,
>
> Am using QGIS 2.10.1 and have done so without significant problems
> for many months.  I am attempting to create simple polygons in a shapefile
> by direct vertex entry or copying polygons from another shapefile layer and
> pasting them into the active layer.
>
> In almost every case, these features disappear.  There is an
> entity entry in the attribute table but there are no polygons created.  In
> one case a polygon was created but it was not the shape that I digitized;
> no more polygons could be created although the process for doing so appears
> to be working.  No error messages were created.  The CRS for the project
> and the shapefile are the same.
>
> The shapefile can be opened in another GIS but has no content.
>
> Here are some product details:  QGIS version  2.10.1-Pisa  QGIS
> code revision  d20c5b7 
>
> Thanks very much for any help you can render, Cheers . . . . . . .
> . Springfield Harrison
>
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Re: [Qgis-user] Geophysical Processing

[Nicolas Cadieux]

Hi, 
I have no real idea of what you are doing but I think you will need filters to 
go from a total magnetic intensity image to a 1VD image.  Try to figure 
out what these filters are and then Google the filter type with QGIS, Saga or 
Grass.  Chances are that Saga or Grass have what you need and then you can 
access them using the qgis processing toolbox plugin.  I wonder if the 
QGIS semi-automatic classification plugin has that?  Once you have the 1VD 
image, the hillshade will likely help you enhance the anomalies. 
Limited help but better than nothing... 
Cheers! 
Nicolas Cadieux M.Sc. 
Les Entreprises Archéotec inc.  
8548, rue Saint-Denis Montréal H2P 2H2 
Téléphone: 514.381.5112  Fax: 514.381.4995 
www.archeotec.ca 
On Feb 2, 2016 9:27 PM, "Grant Boxer [via OSGeo.org]" 
 wrote: 

I have a total magnetic intensity image and would like to create a 
first vertical derivative of the image. I have found the hillshade, slope and 
aspect operations and wondered what is the best to use as 1VD process?   Grant 
Boxer Consultant Geologist (FAIG R.P. Geo) Perth, Western Australia   
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Re: [Qgis-user] New Shapefile Features Fail to Save

[Nicolas Cadieux]

Hi, 
I have done this in the past without errors in QGIS.  I would upgrade to 
the latest version. Then to figure out where the problem is, I would: 
Make sure that both layer are polygon layers (and not lines and polygons), that 
both have the same CRS (along with the project CRS), that both have the same 
fields and that the "receiving layer" is in editing mode, and saved 
subsequently. I would limited the amount of open files and open plugins. 
Try  copying polygons from a newly created file to an empty newly created 
layer in QGIS and not a shapefile that was previously manipulated in other 
softwares.  All this could help you find the source of the problem.  
I would also look at the bug reports to see if it is an issue for that version. 
Hope this helps. 
Nicolas Cadieux M.Sc. 
Les Entreprises Archéotec inc.  
8548, rue Saint-Denis Montréal H2P 2H2 
Téléphone: 514.381.5112  Fax: 514.381.4995 
www.archeotec.ca 
On Feb 2, 2016 8:46 PM, "Springfield Harrison [via OSGeo.org]  " 
 wrote: 



Hello Group, 
Am using
QGIS 2.10.1 and have done so without significant problems for many
months.  I am attempting to create simple polygons in a shapefile by
direct vertex entry or copying polygons from another shapefile layer and
pasting them into the active layer. 
In almost
every case, these features disappear.  There is an entity entry in
the attribute table but there are no polygons created.  In one case
a polygon was created but it was not the shape that I digitized; no more
polygons could be created although the process for doing so appears to be
working.  No error messages were created.  The CRS for the
project and the shapefile are the same. 
The
shapefile can be opened in another GIS but has no content. 
 
Here are
some product details:  QGIS version  2.10.1-Pisa  QGIS
code revision 
d20c5b7 
Thanks
very much for any help you can render, Cheers . . . . . . . . Springfield
Harrison 



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[Qgis-user] Geophysical Processing

[Grant Boxer]

I have a total magnetic intensity image and would like to create a first
vertical derivative of the image. I have found the hillshade, slope and
aspect operations and wondered what is the best to use as 1VD process?

 

Grant Boxer

Consultant Geologist (FAIG R.P. Geo)

Perth, Western Australia

 

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[Qgis-user] New Shapefile Features Fail to Save

[Springfield Harrison]

Hello Group,
Am using
QGIS 2.10.1 and have done so without significant problems for many
months.  I am attempting to create simple polygons in a shapefile by
direct vertex entry or copying polygons from another shapefile layer and
pasting them into the active layer.
In almost
every case, these features disappear.  There is an entity entry in
the attribute table but there are no polygons created.  In one case
a polygon was created but it was not the shape that I digitized; no more
polygons could be created although the process for doing so appears to be
working.  No error messages were created.  The CRS for the
project and the shapefile are the same.
The
shapefile can be opened in another GIS but has no content.

Here are
some product details:  QGIS version  2.10.1-Pisa  QGIS
code revision 
d20c5b7
Thanks
very much for any help you can render, Cheers . . . . . . . . Springfield
Harrison



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Re: [Qgis-user] QGIS crashes when using mouse wheel to zoom in and out of WMTS services

[Joris Hintjens]

sounds like a network problem? Data not coming in?

> Op 2 feb. 2016, om 09:28 heeft Chris Buckmaster 
>  het volgende geschreven:
> 
> Does anyone happen to have any ideas on the below?
>  
> Hi
>  
> I am finding that QGIS (v 2.12.1) keeps crashing when trying to use the mouse 
> wheel to zoom in and out of WMTS services.
>  
> If I just scroll it once, it is fine as it will scroll in or out to the next 
> scale level. But if I want to quickly zoom right into a location and I try 
> and immediately scroll 4 or 5 times, the WMTS does not redraw and QGIS just 
> freezes.
>  
> I am not sure if others have this problem? I know in past versions you were 
> not able to scroll into levels before the next level had been rendered, 
> something we might need to look at going back to if there is a problem with 
> scrolling in and out similar to web maps.
>  
> Thanks, Chris
>  
>  
>  
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[Qgis-user] CliMond data?

[Steve Steve]

Hi,
I had been working with BioClim data and that was working in Maxent. I could 
clip files and realign them etc.

Now I have some data from CliMond which is in two formats:

Either as text files

CM10_1975H_Bio01_V1.2.txt  
CM10_1975H_Bio15_V1.2.txt  
CM10_1975H_Bio29_V1.2.txt
etc

Or sets of data as ESRI format files

/bio40$ ls
dblbnd.adf  
hdr.adf  
metadata.xml  
prj.adf  sta.adf  
w001001.adf  
w001001x.adf

Is there a way that I can batch clip these to a format that is usable in Maxent 
(python or Qgis)?
Cheers,
Steve
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Re: [Qgis-user] Installing QGIS 2.8.4 from the source - how to?

[Yves Moisan]

Le 2016-02-02 11:28, Luis Molina a écrit :

ImportError: No module named Qsci

QScintilla2 is missing.

Here's the final list of dependencies on Ubuntu trusty (including 
libqscintilla2-dev and python-qscintilla2) :


[sudo apt-get install -y ] bison cmake doxygen flex git graphviz 
grass-dev libexpat1-dev libfcgi-dev 
libgdal-dev=1.11.2+dfsg-1~exp2~trusty libgeos-dev libgsl0-dev 
libopenscenegraph-dev libosgearth-dev libpq-dev libproj-dev 
libqscintilla2-dev libqt4-dev libqt4-opengl-dev libqt4-sql-sqlite 
libqtwebkit-dev libqwt5-qt4-dev libspatialindex-dev libspatialite-dev 
libsqlite3-dev lighttpd locales pkg-config poppler-utils pyqt4-dev-tools 
python-all python-all-dev python-pyspatialite python-qscintilla2 
python-qt4 python-qt4-dev python-sip python-sip-dev qt4-doc-html 
spawn-fcgi txt2tags xauth xfonts-100dpi xfonts-75dpi xfonts-base 
xfonts-scalable xvfb cmake-curses-gui postgresql-client


Should be similar for Fedora.

Good luck,

Yves
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[Qgis-user] Installing QGIS 2.8.4 from the source - how to?

[Luis Molina]

Hello,

I just compiled QGIS 2.8.4 from the source on Fedora 18. I had no problems
with the compilation
I installed it in my local directory (not as root). I included the
directories such as lib, bin, man in the environment variables.

I manage to start QGIS but there is an error:

Couldn't load PyQGIS.
Python support will be disabled.

Traceback (most recent call last):
  File "", line 1, in
  File "/homel/lmolina/local/qgis-2.8.4/share/qgis/python/qgis/gui/__init__.py",
line 1, in
from qgis._gui import *
ImportError: No module named Qsci

Python version:
2.7.3 (default, Aug  9 2012, 17:23:57)
[GCC 4.7.1 20120720 (Red Hat 4.7.1-5)]

QGIS version:
2.8.4-Wien 'Wien', exported

Python path:
['/homel/lmolina/local/qgis-2.8.4/share/qgis/python',
u'/homel/lmolina/.qgis2/python',
u'/homel/lmolina/.qgis2/python/plugins',
'/homel/lmolina/local/qgis-2.8.4/share/qgis/python/plugins',
'/home/users/lmolina/Tools', '/home/users/lmolina/Tools/MATPLOTLIB_TOOLS',
'/homel/lmolina/local/qgis-2.8.4/share/qgis/python',
'/usr/lib64/python27.zip',
'/usr/lib64/python2.7', '/usr/lib64/python2.7/plat-linux2',
'/usr/lib64/python2.7/lib-tk',
'/usr/lib64/python2.7/lib-old',
'/usr/lib64/python2.7/lib-dynload',
'/usr/lib64/python2.7/site-packages',
'/usr/lib64/python2.7/site-packages/PIL'
 '/usr/lib64/python2.7/site-packages/geos',
'/usr/lib64/python2.7/site-packages/gst-0.10',
'/usr/lib64/python2.7/site-packages/gtk-2.0',
'/usr/lib64/python2.7/site-packages/wx-2.8-gtk2-unicode',
'/usr/lib/python2.7/site-packages',
'/usr/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg-info']

Then QGIS starts but without Python.

Could somebody give me a clue on what I'm missing?
Thank you,

Luis
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Re: [Qgis-user] Project QGIS Web Client II (QWCII)

[Ivan Mincik]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Dear QGIS users and devs,
GIS.lab Web UI has reached first alpha stage and I have updated README [1]
file with some nice screenshots. Also, we are preparing demonstration video soon
.

For those who want to get their hands dirty, please follow simple instructions
[2] to install whole GIS.lab Web suite using Vagrant. Feedback is very much
welcome.


1 - https://github.com/gislab-npo/gislab-web/blob/master/README.md
2 -
https://github.com/gislab-npo/gislab-web/blob/master/README.md#development-envir
onment

- -- 
Ivan Minčík
ivan.min...@gmail.com  GPG: 0x79529A1E  http://imincik.github.io/0x79529A1E.key
-BEGIN PGP SIGNATURE-
Version: GnuPG v2.0.22 (GNU/Linux)

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5YbTzntr/4Hm41pCtlJWjt9IUQi8WpJ6jrZZbySlwZaiLD+w+S/+izT8F2s9u6Iq
lgn4psTm4A2XXI2g/dEqs21f2ncti7SOKo6hQ3vQEYfgUSXWO9xkRe03zg26Z8wW
ceezVxVZDROp2hDOHIJf0+GRGBaxrzA9orGWp9WHBxxAt7Ndhg3DwEDKEyd/2l5x
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[Qgis-user] FW: QGIS crashes when using mouse wheel to zoom in and out of WMTS services

[Chris Buckmaster]

Does anyone happen to have any ideas on the below?

Hi

I am finding that QGIS (v 2.12.1) keeps crashing when trying to use the mouse 
wheel to zoom in and out of WMTS services.

If I just scroll it once, it is fine as it will scroll in or out to the next 
scale level. But if I want to quickly zoom right into a location and I try and 
immediately scroll 4 or 5 times, the WMTS does not redraw and QGIS just freezes.

I am not sure if others have this problem? I know in past versions you were not 
able to scroll into levels before the next level had been rendered, something 
we might need to look at going back to if there is a problem with scrolling in 
and out similar to web maps.

Thanks, Chris



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