[Qgis-user] Drill hole labelling in the Elevation window

[Grant Boxer via QGIS-User]

I would like to know if we can apply labels to the items in the Elevation
profile window? I would like to display values down a drill hole but I
cannot seem to find any settings for the elevation profile window to do
this. Is this something that still needs development? Great that we can show
drill holes in cross section now in 3.38 and using the Geoscience plugin to
calculate the 3D coordinates.

Cheers Grant, Western Australia.

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[Qgis-user] Example of triangular legend

[Grant Boxer via QGIS-User]

See attached image.

Any thoughts on how we might do this in QGIS?

Grant
Perth Western Australia

-Original Message-
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Today's Topics:

   1. Triangular Legend (Drew French)
   2. Re: Triangular Legend (Phil Wyatt)


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Message: 1
Date: Sat, 15 Jun 2024 16:51:57 -0500
From: Drew French 
To: QGIS List 
Subject: [Qgis-user] Triangular Legend
Message-ID:

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

Do you have a sample image?

On Sat, Jun 15, 2024 at 2:00?PM  wrote:

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>1. Triangular Legend (box...@iinet.net.au)
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> Message: 1
> Date: Sat, 15 Jun 2024 14:26:06 +0800
> From: 
> To: 
> Subject: [Qgis-user] Triangular Legend
> Message-ID: <00b001dabeec$e80ff490$b82fddb0$@iinet.net.au>
> Content-Type: text/plain; charset="us-ascii"
>
> I am producing ternary radiometric images where potassium is shown in 
> red, thorium shown in green and uranium shown in blue. In geophysical 
> maps, they commonly have a triangular legend with potassium at the 
> apex and the green and blue at the lower points of the triangle. Hs 
> anyone ever created a triangular legend for an RGB image?
>
> Cheers Grant
>
> Perth Western Australia
>
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Message: 2
Date: Sun, 16 Jun 2024 18:00:10 +1000
From: "Phil Wyatt" 
To: "'Drew French'" , "'QGIS List'"

Subject: Re: [Qgis-user] Triangular Legend
Message-ID: <001301dabfc3$3c7290c0$b557b240$@wyatt-family.com>
Content-Type: text/plain; charset="utf-8"

I suspect this is typical of what is required (maybe not with the text?)

 

https://vro.agriculture.vic.gov.au/dpi/vro/vroimages.nsf/Images/landform_rad
io5/$File/radio_pyrmid.jpg

 

 

 

From: QGIS-User  On Behalf Of Drew French
via QGIS-User
Sent: Sunday, June 16, 2024 7:52 AM
To: QGIS List 
Subject: [Qgis-user] Triangular Legend

 

Do you have a sample image?

 

On Sat, Jun 15, 2024 at 2:00?PM mailto:qgis-user-requ...@lists.osgeo.org> > wrote:

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Today's Topics:

   1. Triangular Legend (box...@iinet.net.au  )


--

Message: 1
Date: Sat, 15 Jun 2024 14:26:06 +0800
From: mailto:box...@iinet.net.au> >
To: 

[Qgis-user] Triangular Legend

[Grant Boxer via QGIS-User]

I am producing ternary radiometric images where potassium is shown in red,
thorium shown in green and uranium shown in blue. In geophysical maps, they
commonly have a triangular legend with potassium at the apex and the green
and blue at the lower points of the triangle. Hs anyone ever created a
triangular legend for an RGB image?

Cheers Grant

Perth Western Australia

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Re: [Qgis-user] Pansharpening Images

[Grant Boxer via QGIS-User]

Thanks Micha,

That works but I don’t know why it is called “BundleToPerfectSensor”? I have 
searched for pansharpening algorithms previously and would never have guessed 
that one!

Cheers Grant

Perth WA

 

From: Micha Silver  
Sent: Thursday, May 23, 2024 10:38 PM
To: Grant Boxer ; qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] Pansharpening Images

 

In the past I've used the pan sharpening function in Orfeo Toolbox on WorldView 
3 imagery. I chose the "bayes" method, not Gram-Schmidt that you want. Orfeo 
implements three sharpening algorithms:

https://www.orfeo-toolbox.org/CookBook/Applications/app_BundleToPerfectSensor.html

 

Here's the code I used (after preparing a *.vrt from both the PAN and the 
Multiband files)

 

WV_dir="."
region="."

# Pan sharpening
otbcli_BundleToPerfectSensor -inp ${WV_dir}/${region}_PAN.vrt -inxs 
${WV_dir}/${region}_Multi.vrt -out ${WV_dir}/${region}_pansharp_bayes.tif 
uint16 -method bayes -ram 8000 -progress true

# Compress
gdal_translate -co COMPRESS=ZSTD -co PREDICTOR=2 
${WV_dir}/${region}_pansharp_bayes.tif ${WV_dir}/${region}_pansharp_bayes2.tif
mv ${WV_dir}/${region}_pansharp_bayes2.tif 
${WV_dir}/${region}_pansharp_bayes.tif
gdaladdo -r average --config COMPRESS_OVERVIEW ZSTD --config PREDICTOR_OVERVIEW 
2 -ro ${WV_dir}/${region}_pansharp_bayes.tif

HTH

 

On 23/05/2024 6:43, Grant Boxer via QGIS-User wrote:

Does anyone know of a plug-in or algorithm for QGIS where I can pansharpen 
satellite imagery using the Gram-Schmidt method?

Cheers Grant

Perth WA

 





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-- 
Micha Silver
Ben Gurion Univ.
Sde Boker, Remote Sensing Lab
cell: +972-523-665918
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[Qgis-user] Pansharpening Images

[Grant Boxer via QGIS-User]

Does anyone know of a plug-in or algorithm for QGIS where I can pansharpen
satellite imagery using the Gram-Schmidt method?

Cheers Grant

Perth WA

 

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[Qgis-user] GRASS error

[Grant Boxer via QGIS-User]

I have just re-installed QGIS using the network installer and I now get this
error message,

"GRASS init error: GRASS was not found in 'C:/OSGeo4W/bin/grass' (GISBASE),
provider and plugin will not work."

Can anyone assist with this?

Cheers Grant

 

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[Qgis-user] Extracting colours from a vector file

[Grant Boxer via QGIS-User]

I would like to extract colours from a rule-based rendered shp file with the
aim of applying these colours to a MapInfo tab file. I have tried the rgb
function but that doesn't seem to work. Anyone have any suggestions to
extract the red, green and blue values?

Cheers Grant, Perth WA

 

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Re: [Qgis-user] Problem with contour algorithm

[Grant Boxer via QGIS-User]

Yes, problem fixed as per reply. Many thanks
Grant


-Original Message-
From: Andrea Giudiceandrea  
Sent: Monday, March 18, 2024 9:43 PM
To: box...@iinet.net.au
Subject: Re: [Qgis-user] Problem with contour algorithm

Hi Grant,
have you managed to fix the issue? How?

Best regards.

Andrea


> Andrea Giudiceandrea andreaerdna at libero.it Thu Mar 14 08:47:37 PDT 
> 2024

> Hi Grant,
> in order to fix the issue, you just need to change the "Default output 
> vector layer extension" (in Settings->Options->Processing->General) 
> for your QGIS user settings to a value other than "xtf": I suggest the 
> value "gpkg" (GeoPackage) which is the default for such option.
> 
> I also suggest you to also change the "Default output raster layer 
> extension" to "tif", which probably may be also incorrectly set to "nc"
> in your QGIS user settings.
> 
> Best regards.
> 
> Andrea

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[Qgis-user] Orfeo Tool Box

[Grant Boxer via QGIS-User]

Where has the Orfeo Toolbox gone? I believe it has gone from being a core
plug-in to a standard plug-in but I cannot find it in the plug-ins list.

Cheers Grant


-Original Message-
From: QGIS-User  On Behalf Of
qgis-user-requ...@lists.osgeo.org
Sent: Saturday, February 24, 2024 1:03 AM
To: qgis-user@lists.osgeo.org
Subject: QGIS-User Digest, Vol 216, Issue 41

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Today's Topics:

   1. Re: How to create 3d terrain from DEM? (Andrea Giudiceandrea)
   2. Kmz rendering very slow (krishna Ayyala)
   3. Re: Kmz rendering very slow (Kobben, Barend (UT-ITC))
   4. Re: Kmz rendering very slow (C Hamilton)
   5. Re: How to create 3d terrain from DEM? (David Strip)
   6. Re: Help with building from source (Don Harter)
   7. Re: QGIS and Mango (Collin Coe)


--

Message: 1
Date: Fri, 23 Feb 2024 11:40:15 +0100
From: Andrea Giudiceandrea 
To: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] How to create 3d terrain from DEM?
Message-ID: <43a56186-40e1-4546-8bfa-787440c1c...@libero.it>
Content-Type: text/plain; charset=UTF-8; format=flowed

> greg at tekknow.net greg at tekknow.net Thu Feb 22 20:12:38 PST 2024

Hi Greg,
while I'm not sure that the IDW interpolation is the right interpolation
algorithm to use in order to obtain a valid DEM from irregularly sampled
elevation data and that Google Earth is a valid source of elevation data at
sufficient resolution and precision for a house building, it looks like the
main issue is due to the fact that the point vector layer containing the
elevation data is in a geographical Coordinate Reference System, i.e. the
unit of measure of the X and Y coordinates is the degree, while the unit of
measure of the Z coordinate (elevation) is probably the metre.

Thus, in order for the the 3D terrain to be correctly displayed, you firstly
need to reproject the point vector layer containing the elevation data to a
projected Coordinate Reference System whose unit of measure for the X and Y
coordinates is the metre and then use such reprojected point vector layer to
create the DEM.
I suggest you to use an UTM projection suitable for your area.

Best regards.

Andrea


--

Message: 2
Date: Fri, 23 Feb 2024 06:07:03 -0700
From: krishna Ayyala 
To: qgis-user 
Subject: [Qgis-user] Kmz rendering very slow
Message-ID:

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

Hello,
I am reposting this question.
I have a geopackage file of about 30MB size. I have converted it into kmz
which resulted in 13MB size. When I open this kmz in google earth, it is
very slow and takes about 10 to 15 minutes to load and open. Even after
opening, I cannot zoom-in or zoom-out quickly. Is there a fix for this such
that I can open the file in google earth quickly?

Regards.
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Message: 3
Date: Fri, 23 Feb 2024 13:38:35 +
From: "Kobben, Barend (UT-ITC)" 
To: krishna Ayyala , qgis-user

Subject: Re: [Qgis-user] Kmz rendering very slow
Message-ID:



Content-Type: text/plain; charset="iso-8859-1"

Not really. KMZ/KML is a simple dataformat not suitable for such large
amounts of data. It eg does not support spatial or other indexing (even if
it would, Google Earth renderering porbbably cannot use the indexes
anyway)...
--
Barend K?bben


On 23/02/2024, 14:07, "QGIS-User"  wrote:

Hello,
I am reposting this question.
I have a geopackage file of about 30MB size. I have converted it into kmz
which resulted in 13MB size. When I open this kmz in google earth, it is
very slow and takes about 10 to 15 minutes to load and open. Even after
opening, I cannot zoom-in or zoom-out quickly. Is there a fix for this such
that I can open the file in google earth quickly?

Regards.
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--

Message: 4
Date: Fri, 23 Feb 2024 08:49:07 -0500
From: C Hamilton 
To: "Kobben, Barend (UT-ITC)" 
Cc: krishna Ayyala , qgis-user

Subject: Re: [Qgis-user] Kmz rendering very slow
Message-ID:

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

Agreed. Google Earth simply cannot handle large amounts of data.

Calvin

On Fri, Feb 

[Qgis-user] Drill Hole Labels

[Grant Boxer via QGIS-User]

Hi All,

I am trying to label drill hole data down drill holes using the Geoscience
plug-in but I am having problems getting the labels oriented at right angles
to the hole trace and spaced away from the hole trace to enable readability.
Has anyone worked out how to do this? Could we use the geometry generator
for the label display?

Cheers Grant

Perth WA

 

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[Qgis-user] Pansharpening Problem

[Grant Boxer via QGIS-User]

I am attempting to pansharpen a PRISMA hyperspectral RGB image and I am
getting areas within the image that are clipped (no data). These appear to
bands with zero values in two of the three bands. Anyone have a work around
or suggest how this can be avoided. I am using the gdal pansharpen tool and
latest release QGIS 3.34.

Cheers Grant

Perth WA

 

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[Qgis-user] QGIS Themes

[Grant Boxer via QGIS-User]

Good morning,

I am trying to create themes in the QGIS map window but it will only allow
me to create one theme. I wish to have one theme for my drill hole collars
(plan view) and another theme for my cross sections (Cross_Section). After I
have created the first theme, the add new theme option is greyed out.
Anyone else have this problem or has a solution?

Cheers Grant
Perth WA


-Original Message-
From: QGIS-User  On Behalf Of
qgis-user-requ...@lists.osgeo.org
Sent: Thursday, October 26, 2023 3:00 AM
To: qgis-user@lists.osgeo.org
Subject: QGIS-User Digest, Vol 212, Issue 33

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Today's Topics:

   1. Re: Convert PNG file to vector file (Johannes Kr?ger (WhereGroup))
   2. Re: Convert PNG file to vector file (krishna Ayyala)
   3. Re: Convert PNG file to vector file (David Strip)
   4. How to download QGIS for MacOs Ventura 13.5.2 (Ittig Isabel)
   5. Using transformations in SVG Parameters (Jacob Huffman)


--

Message: 1
Date: Wed, 25 Oct 2023 14:00:26 +0200
From: Johannes Kr?ger (WhereGroup)  
To: krishna Ayyala , qgis-user

Subject: Re: [Qgis-user] Convert PNG file to vector file
Message-ID: 
Content-Type: text/plain; charset="utf-8"; Format="flowed"

No, that would be a very hard computer vision problem because of the styles
and overlays. You will be faster and more accurate if you recreate an
approximation of the hexagonal grid and then retrace all polygons manually
using those cells.

Am 25.10.23 um 13:37 schrieb krishna Ayyala via QGIS-User:
> I am reposting this question.Can anyone please help?
>
> Hello,
> I have a png file. This has polygons with 36 categories?as shown in 
> the legend. Is it possible to convert?this file to?a vector file such 
> as .shp or gpkg file? When I open the attribute table, it should be 
> able to distinguish between each of these 36 categories. Below is the 
> weblink to png. Can anyone help me with this please?
>
> Regards.
>
> ListofProjects.png (2200?1700) (oklahoma.gov) 
>  rams/arpa-slfrf-ii/ListofProjects.png>
>
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--
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-
Aufwind durch Wissen!
Web-Seminare und Online-Schulungen
bei derwww.foss-academy.com
-

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Tel: +49 (0)228 / 90 90 38 - 36
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Message: 2
Date: Wed, 25 Oct 2023 07:46:19 -0600
From: krishna Ayyala 
To: Simon Dietmann , qgis-user

Subject: Re: [Qgis-user] Convert PNG file to vector file
Message-ID:

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

Thanks for the reply Simon. The Polygonize tool did not work for me.

Regards.

On Wed, Oct 25, 2023 at 5:49?AM Simon Dietmann  wrote:

> Hi Krishna,
>
>
>
> have you tried the polygonize algorithm? Raster ? Conversion ? 
> Polygonize (Raster to Vector)
>
>
> https://docs.qgis.org/3.28/en/docs/training_manual/complete_analysis/r
> aster_to_vector.html
>
> Some post processing may be necessary.
>
>
>
> cheers, Simon
>
>
>
>
>
>
>
> i.A. Simon Dietmann
> Projektleiter | Geograph
>
> PGNU Planungsgesellschaft Natur & Umwelt mbH Amtsgericht Frankfurt am 
> Main, HRB 111938;
> Gesch?ftsf?hrer: Dr. Benjamin Hill, Johannes Christoph Kress, 
> Alexander von K?chler Hamburger Allee 45 +++ 60486 Frankfurt am Main
> Durchwahl: +49 69 952964-75 +++ Fax: +49 69 952964-99 +++ Mobil:
> E-Mail: dietm...@pgnu.de +++ Web: www.pgnu.de
>
> > Diese E-Mail k?nnte vertrauliche und/oder rechtlich gesch?tzte
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> sofort den Absender und vernichten Sie diese Mail. Das unerlaubte 
> Kopieren sowie die unbefugte Weitergabe dieser Mail sind nicht 

[Qgis-user] Guides in a layout template

[Grant Boxer via QGIS-User]

Is there a way to save the guides in a layout template? They do not seem to
be saved when creating a template.

Cheers Grant

Perth WA

 

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[Qgis-user] Combine raster bands in Graphical Modeller

[Grant Boxer via QGIS-User]

I have a multiband raster and I need to add all the ten bands together to
create a one band raster file. I can do this in the raster calculator
manually but cannot seem to find a way to do this using the raster
calculator in the graphical modeller. There is a max of 5 bands that can be
operated on at any one time. Any suggestions?

Grant Boxer

Perth, WA

 

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Re: [Qgis-user] QGIS-User Digest, Vol 210, Issue 10

[Grant Boxer via QGIS-User]

Thanks Martin,

I ended up using the Georeferencer and the ground control point coordinates
with a Helmert transformation. That worked well.

Cheers Grant


-Original Message-
From: QGIS-User  On Behalf Of
qgis-user-requ...@lists.osgeo.org
Sent: Sunday, August 13, 2023 3:00 AM
To: qgis-user@lists.osgeo.org
Subject: QGIS-User Digest, Vol 210, Issue 10

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Today's Topics:

   1. Re: Shifting a Geotiff image (Martin Weis)


--

Message: 1
Date: Sat, 12 Aug 2023 18:17:51 +0200
From: Martin Weis 
To: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] Shifting a Geotiff image
Message-ID: 
Content-Type: text/plain; charset=UTF-8; format=flowed

Dear Perth,

On 11/08/2023 09:14, Grant Boxer via QGIS-User wrote:
> I have a GeoTIFF image created using Web ODM and is mis-aligned by 1 
> to 1.5 m and I would like to move the image to register with the 
> surveyed ground control points. I can see vector tools to do this, but no
raster tools.
> Anyone have any suggestions.


If it just a bit off, then the plugin "Freehand raster georeferencer"
can be quick to shift it, otherwise use georeferencer from core (Layer -
georeferencer), which is especially more flexible and the right tool if you
have GCPs that you can use.
Be careful, sometimes crashes can occur with certain transformation types,
so better save beforehand (autoSaver and MemoryLayerSaver are your friends).

> Image created in WGS84 z51S.

Sound like UTM (good, metric CRS), though WGS84 might be geographic CRS
(worse, pixel size undefined/different in x,y).

Cheers
Martin





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[Qgis-user] Shifting a Geotiff image

[Grant Boxer via QGIS-User]

I have a GeoTIFF image created using Web ODM and is mis-aligned by 1 to 1.5
m and I would like to move the image to register with the surveyed ground
control points. I can see vector tools to do this, but no raster tools.
Anyone have any suggestions. Image created in WGS84 z51S.

Cheers Grant Boxer

Perth

 

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[Qgis-user] Value Relation Problem

[Grant Boxer via QGIS-User]

I have a drop down value relation list that takes values entered in Item A
(e.g. rock type "regolith") and looks at a second file for the value that
are listed under "regolith" e.g. clay. The problem I have is that the look
-up value changes to the first one in the second list every time I tab to a
new field. Seems like it is defaulting to the first item in the list. Anyone
encountered this problem?

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Create 3D polygons

[Grant Boxer via QGIS-User]

I am trying to create a 3D polygon using XYZ coordinates, like from vertices
of a rectangular prism for example, and wondered how to create this so I can
display is in 3D using the QGIS2Threejs or the 3D map view options in QGIS.
Any suggestions? 

Grant Boxer

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[Qgis-user] Click to open layer

[Grant Boxer via QGIS-User]

I am sure there is a simple way to do this but I would like to click on a
polygon and get it to open a tiff file into my map canvas. Do I use an
Action and an "open" command?

Regards Grant Boxer

 

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[Qgis-user] 3D Drill Hole Raster Images

[Grant Boxer via QGIS-User]

I am trying to display a drill cross section image (raster) generated in the
Geoscience plug-in in the QGIS2Threejs viewer. Can anyone suggest how I can
assign 3D coordinates to the raster image so it will display in 3D space?

Cheers Grant

Perth WA

 

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[Qgis-user] Plug-ins v 3.30

[Grant Boxer via QGIS-User]

The plug-in repository link is now fixed but I get a huge number of "new"
plug-ins and the "sagaprovider" is invalid.

Cheers Grant Boxer

Perth WA

 

 

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[Qgis-user] Problem with v3.30 plug-ins repository

[Grant Boxer via QGIS-User]

I have upgraded to v3.30 but now I cannot connect to the plug-ins
repository. Any suggestions?

Cheers Grant Boxer

Perth WA

 

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[Qgis-user] Slow updating folder listing in Browser panel

[Grant Boxer via QGIS-User]

I have been finding lately that the refresh of the folders in the browser
panel is quite slow. I have quite complicated folders so I am wondering if
there is any way to speed this up, or do I have to simplify my folders?

I am using v3.28.3 on Windows 10.

Grant Boxer

Perth, WA

 

 

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[Qgis-user] Formatting dynamic text scale in print layout

[Grant Boxer via QGIS-User]

Solution to format problem for dynamic text scale:
[%round(item_variables('Map 1')['map_scale'])%].
Thanks to David Strip for assistance.
Cheers Grant


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Re: [Qgis-user] Formatting dynamic text

[Grant Boxer via QGIS-User]

Many thanks, I will give it a try,

Cheers Grant

 

 

From: David Strip  
Sent: Wednesday, 25 January 2023 12:27 PM
To: qgis-user ; box...@iinet.net.au
Subject: re: Formatting dynamic text

 

I am trying to use the dynamic text option  [%item_variables('Map
1')['map_scale']%] in my print layout but I get a scale of 10.7
in my title block. How can I apply a format number to get it to display a
whole number like 10?


I don't know how to do it using dynamic text, but you can get what you want 
using this expression

[% round(map_get( item_variables('Map 1'), 'map_scale'),0)%]

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[Qgis-user] Formatting dynamic text

[Grant Boxer via QGIS-User]

I am trying to use the dynamic text option  [%item_variables('Map
1')['map_scale']%] in my print layout but I get a scale of 10.7
in my title block. How can I apply a format number to get it to display a
whole number like 10?

Cheers Grant Boxer, Perth WA


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[Qgis-user] GeoTiff losing CRS

[Grant Boxer via QGIS-User]

Happy New Year to all! 

 

I have been processing satellite imagery and producing pansharpened images.
I create a virtual image with CRS no problem, but when I save  the resulting
GeoTiff file it loses its CRS and results in an invalid projection. I have
tried changing the data types and compressions with no luck. I find that
when you do the first image it might work, but doing a second image it loses
the CRS. Not sure whether this is a proj or gdal issue. Any thoughts?

 

Cheers Grant, Perth WA.

 

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Re: [Qgis-user] QGIS-User Digest, Vol 202, Issue 23

[Grant Boxer via QGIS-User]

Hi Scott,

This sounds like something the remote sensing satellite people would know
how to handle. Maybe contact someone at the European Space Agency (ESA) and
or maybe try Andrew Hart,  at the UK based
Geological Remote Sensing Group (www.grsg.org.uk) . I sure they will know
someone who can help.

Cheers Grant Boxer, Perth, WA.

-Original Message-
From: QGIS-User  On Behalf Of
qgis-user-requ...@lists.osgeo.org
Sent: Saturday, 31 December 2022 4:00 AM
To: qgis-user@lists.osgeo.org
Subject: QGIS-User Digest, Vol 202, Issue 23

Send QGIS-User mailing list submissions to
qgis-user@lists.osgeo.org

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When replying, please edit your Subject line so it is more specific than
"Re: Contents of QGIS-User digest..."


Today's Topics:

   1. Airborne camera rectification (Madry, Scott)


--

Message: 1
Date: Fri, 30 Dec 2022 19:48:27 +
From: "Madry, Scott" 
To: "qgis-user@lists.osgeo.org" 
Subject: [Qgis-user] Airborne camera rectification
Message-ID: 
Content-Type: text/plain; charset="utf-8"

Hello list. First of all, thanks to all of you for helping make the QGIS
community the very special thing that it is.

I will be involved in a stratospheric balloon launch in January (altitude
~30 km), and it will have a nadir-pointing RGB camera that will have it?s
images telemetered to the ground. It is nadir-pointing, but will have random
swaying motion in all axes. Does anyone have experience in reading the 6
parameters of exterior orientation (X, Y, Z, w, f, k (Rotations about x, y,
z axes respectively)) from the EXIF header attached to the JPEG and using it
to georectify the images as well as can be done in QGIS? We are hoping to
compare the various images at different altitudes with satellite imagery
acquired at about the same time.

Thank you so much, and happy new year to everyone!

Scott

Scott Madry, Ph.D.
Research Associate Professor of Archaeology The University of North Carolina
at Chapel Hill

Tel 1-919-448-4493
Email:mad...@email.unc.edu<mailto:mad...@email.unc.edu>
https://scottmadry.web.unc.edu
Skype:   scott madry

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Subject: Digest Footer

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[Qgis-user] Colouring Geological Maps

[Grant Boxer via QGIS-User]

I am trying to find an easier way of colouring a geological map. The only
way I can find to colourise the polygons in both the map window and layers
panel - and hence the displayed legend - is to use the rule-based rendering
option. Each rule has to be manually styled. 

 

Is there a way to get QGIS to interrogate a text file for styling
information? I can't seem to find one anywhere in the algorithms. Aiming to
use this in a graphical modeller to automate colourising geological maps. I
can use a fixed qml file but that has to be done for each individual map
unless you have a wide range of set styles.

 

Cheers Grant, Perth WA

 

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[Qgis-user] Georeferencer Problem

[Grant Boxer via QGIS-User]

I am having issues with the georeferencer. When I register an image the
process does not recognise the CRS entered into the settings window. It
returns the layer with an invalid projection. When I try to change the
projection in the new layer it creates this error.

 

Has anyone else had this problem? See output below, Any thoughts?

 

Regards Grant Boxer, Perth WA

 

An error has occurred while executing Python code: 

RuntimeError: The JPEG driver does not support update access to existing
datasets. 

Traceback (most recent call last):
  File
"C:\Users/boxer/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\e
nmapboxplugin\enmapbox\qgispluginsupport\qps\layerconfigwidgets\gdalmetadata
.py", line 1218, in apply
ds = gdalDataset(self.mapLayer(), gdal.GA_Update)
  File
"C:\Users/boxer/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\e
nmapboxplugin\enmapbox\qgispluginsupport\qps\utils.py", line 829, in
gdalDataset
return gdalDataset(dataset.source(), eAccess=eAccess)
  File
"C:\Users/boxer/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\e
nmapboxplugin\enmapbox\qgispluginsupport\qps\utils.py", line 833, in
gdalDataset
ds = gdal.Open(dataset, eAccess)
  File "C:\OSGeo4W\apps\Python39\lib\site-packages\osgeo\gdal.py", line
4708, in Open
return _gdal.Open(*args)
RuntimeError: The JPEG driver does not support update access to existing
datasets.


Python version: 3.9.5 (tags/v3.9.5:0a7dcbd, May  3 2021, 17:27:52) [MSC
v.1928 64 bit (AMD64)] 
QGIS version: 3.28.1-Firenze Firenze, fde3b8fbb8 

Python Path:

* C:/OSGeo4W/apps/qgis/./python

*
C:/Users/boxer/AppData/Roaming/QGIS/QGIS3\profiles\default/python

*
C:/Users/boxer/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins

* C:/OSGeo4W/apps/qgis/./python/plugins

* C:\OSGeo4W\bin\python39.zip

* C:\OSGeo4W\apps\Python39\DLLs

* C:\OSGeo4W\apps\Python39\lib

* C:\OSGeo4W\bin

*
C:\Users\boxer\AppData\Roaming\Python\Python39\site-packages

* C:\OSGeo4W\apps\Python39

* C:\OSGeo4W\apps\Python39\lib\site-packages

* C:\OSGeo4W\apps\Python39\lib\site-packages\win32

* C:\OSGeo4W\apps\Python39\lib\site-packages\win32\lib

* C:\OSGeo4W\apps\Python39\lib\site-packages\Pythonwin

*
C:/Users/boxer/AppData/Roaming/QGIS/QGIS3\profiles\default/python

*
C:\Users/boxer/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\en
mapboxplugin\site-packages

*
C:\Users/boxer/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\en
mapboxplugin

*
C:\Users\boxer\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\en
mapboxplugin\enmapbox\site-packages

*
C:\Users\boxer\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\en
mapboxplugin\enmapbox\apps

*
C:\Users\boxer\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\en
mapboxplugin\enmapbox\coreapps

*
C:\Users\boxer\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\en
mapboxplugin\enmapbox\eo4qapps

.

 



 

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[Qgis-user] Problems with gdal

[Grant Boxer via Qgis-user]

I have deleted all my qgis installation files and re-loaded the program.
This seems to have worked, but I now have to reload all my plugins and other
settings. Seems my gdal file was somehow corrupted.

Cheers Grant


-Original Message-
From: Qgis-user  On Behalf Of
qgis-user-requ...@lists.osgeo.org
Sent: Sunday, 11 September 2022 3:00 AM
To: qgis-user@lists.osgeo.org
Subject: Qgis-user Digest, Vol 199, Issue 10

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qgis-user@lists.osgeo.org

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Today's Topics:

   1. GDAL problem (box...@iinet.net.au)
   2. Re: GDAL problem (Andrea Giudiceandrea)
   3. Re: QGIS freezes at loading screen (Richard Duivenvoorde)
   4. (no subject) (Marco G?mez)
   5. (no subject) (Marco G?mez)


--

Message: 1
Date: Sat, 10 Sep 2022 11:26:53 +0800
From: 
To: 
Subject: [Qgis-user] GDAL problem
Message-ID: <13ab01d8c4c5$2c10ce90$84326bb0$@iinet.net.au>
Content-Type: text/plain; charset="us-ascii"

Hi all, when I try to pansharpen an image using gdal, I get the following
message. Any thoughts?

 

QGIS version: 3.26.2-Buenos Aires

QGIS code revision: feec3d3b

Qt version: 5.15.3

Python version: 3.9.5

GDAL version: 3.5.1

GEOS version: 3.10.3-CAPI-1.16.1

PROJ version: Rel. 9.1.0, September 1st, 2022

PDAL version: 2.4.3 (git-version: 6311a6)

Algorithm started at: 2022-09-10T11:24:16

Algorithm 'Pansharpening' starting.

Input parameters:

{ 'EXTRA' : '', 'OPTIONS' : '', 'OUTPUT' :
'D:/Projects/REE/PRS_L2D_STD_20210502012240_20210502012244_0001/SWIR_Panshar
pened.vrt', 'PANCHROMATIC' :
'D:/Projects/REE/PRS_L2D_STD_20210502012240_20210502012244_0001/NolansBore_S
pectraCube_SWIR.tif', 'RESAMPLING' : 2, 'SPECTRAL' :
'D:/Projects/REE/PRS_L2D_STD_20210502012240_20210502012244_0001/NolansBore_S
pectraCube_SWIR.tif' }

 

GDAL command:

gdal_pansharpen.bat
D:\Projects\REE\PRS_L2D_STD_20210502012240_20210502012244_0001\NolansBore_Sp
ectraCube_SWIR.tif
D:\Projects\REE\PRS_L2D_STD_20210502012240_20210502012244_0001\NolansBore_Sp
ectraCube_SWIR.tif
D:/Projects/REE/PRS_L2D_STD_20210502012240_20210502012244_0001/SWIR_Pansharp
ened.vrt -r cubic -of VRT

GDAL command output:

Process gdal_pansharpen.bat failed to start. Either gdal_pansharpen.bat is
missing, or you may have insufficient permissions to run the program.

Execution failed after 0.17 seconds

 

Loading resulting layers

Algorithm 'Pansharpening' finished

 

 

 

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Message: 2
Date: Sat, 10 Sep 2022 08:24:21 +0200
From: Andrea Giudiceandrea 
To: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] GDAL problem
Message-ID: 
Content-Type: text/plain; charset="utf-8"; Format="flowed"

> *boxerg at iinet.net.au*boxerg at iinet.net.au 
>  GDAL%20problem=%3C13ab01d8c4c5%242c10ce90%2484326bb0%24%40
> iinet.net.au%3E>
> /Fri Sep 9 20:26:53 PDT 2022/
> --
> -- Hi all, when I try to pansharpen an image using gdal, I get the 
> following message.

> Process gdal_pansharpen.bat failed to start. Either 
> gdal_pansharpen.bat is missing, or you may have insufficient permissions
to run the program.

Hi boxerg,
what is your operative system exactly? Is the gdal_pansharpen.bat file
available in your QGIS_install_dir\apps\Python39\Scripts\ folder? Have you
tried to run the command in the OSGeo4W Shell? What errors are displayed, if
any?

Best regards.

Andrea Giudiceandrea
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Message: 3
Date: Sat, 10 Sep 2022 09:47:00 +0200
From: Richard Duivenvoorde 
To: Torben Kreuzberg ,
qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] QGIS freezes at loading screen
Message-ID: <6501ebd5-358c-9df4-92e7-61b2e2cf4...@duif.net>
Content-Type: text/plain; charset=UTF-8; format=flowed

On 9/9/22 17:06, Torben Kreuzberg via Qgis-user wrote:
> Hello everyone,
> i have the following problem:
> when i try to start QGIS it freezes at the loading screen at last step
("QGIS is ready"/"QGIS ist startklar").
> It happens at the start of every project i try to open.

And it is at the end finally loading (if so, could it be a proxy setting?

[Qgis-user] GDAL problem

[Grant Boxer via Qgis-user]

Hi all, when I try to pansharpen an image using gdal, I get the following
message. Any thoughts?

 

QGIS version: 3.26.2-Buenos Aires

QGIS code revision: feec3d3b

Qt version: 5.15.3

Python version: 3.9.5

GDAL version: 3.5.1

GEOS version: 3.10.3-CAPI-1.16.1

PROJ version: Rel. 9.1.0, September 1st, 2022

PDAL version: 2.4.3 (git-version: 6311a6)

Algorithm started at: 2022-09-10T11:24:16

Algorithm 'Pansharpening' starting.

Input parameters:

{ 'EXTRA' : '', 'OPTIONS' : '', 'OUTPUT' :
'D:/Projects/REE/PRS_L2D_STD_20210502012240_20210502012244_0001/SWIR_Panshar
pened.vrt', 'PANCHROMATIC' :
'D:/Projects/REE/PRS_L2D_STD_20210502012240_20210502012244_0001/NolansBore_S
pectraCube_SWIR.tif', 'RESAMPLING' : 2, 'SPECTRAL' :
'D:/Projects/REE/PRS_L2D_STD_20210502012240_20210502012244_0001/NolansBore_S
pectraCube_SWIR.tif' }

 

GDAL command:

gdal_pansharpen.bat
D:\Projects\REE\PRS_L2D_STD_20210502012240_20210502012244_0001\NolansBore_Sp
ectraCube_SWIR.tif
D:\Projects\REE\PRS_L2D_STD_20210502012240_20210502012244_0001\NolansBore_Sp
ectraCube_SWIR.tif
D:/Projects/REE/PRS_L2D_STD_20210502012240_20210502012244_0001/SWIR_Pansharp
ened.vrt -r cubic -of VRT

GDAL command output:

Process gdal_pansharpen.bat failed to start. Either gdal_pansharpen.bat is
missing, or you may have insufficient permissions to run the program.

Execution failed after 0.17 seconds

 

Loading resulting layers

Algorithm 'Pansharpening' finished

 

 

 

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Re: [Qgis-user] Strange digitising behavior

[Grant Boxer via Qgis-user]

Thanks Karl,

 

Yes, that was the problem – I needed to change the digitising mode to
segment. Seems to still apply these characteristic even when the advanced
digitising tools are not enabled.

 

Cheers Grant

 

 

From: Karl Magnus Jönsson  
Sent: Wednesday, 27 July 2022 7:43 PM
To: box...@iinet.net.au; qgis-user@lists.osgeo.org
Subject: Sv: [Qgis-user] Strange digitising behavior

 

Hi!

It’s  a new thing that could be a bit confusing. When you digitize you can
choose between segment, stream, curve, shape in the advanced digitizing
toolbar. And there is a toolbar for choosing shapes as well.

 



 

Karl-Magnus Jönsson

 

 

Från: Qgis-user mailto:qgis-user-boun...@lists.osgeo.org> > För Grant Boxer via Qgis-user
Skickat: den 27 juli 2022 13:18
Till: qgis-user@lists.osgeo.org <mailto:qgis-user@lists.osgeo.org> 
Ämne: [Qgis-user] Strange digitising behavior

 

I have somehow altered a setting whereby anytime I try to digitise points
for a polygon layer, QGIS draws a rectangle, like a create shapes type
action. This doesn’t happen if I use a new profile, so it is a setting
somewhere in my set up but I have not been able to find it. Has anyone else
had this issue and can tell me how to fix it? I am running 3.26 on
Windows10.

 

Grant Boxer

Perth Western Australia

 

 

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[Qgis-user] Strange digitising behavior

[Grant Boxer via Qgis-user]

I have somehow altered a setting whereby anytime I try to digitise points
for a polygon layer, QGIS draws a rectangle, like a create shapes type
action. This doesn't happen if I use a new profile, so it is a setting
somewhere in my set up but I have not been able to find it. Has anyone else
had this issue and can tell me how to fix it? I am running 3.26 on
Windows10.

 

Grant Boxer

Perth Western Australia

 

 

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

[Grant Boxer via Qgis-user]

Hi Mike,

to export points from a shape file to a gpx file, I use the POI plugin. This
plugin allows you to specify which column you want as the point ID.

Cheers Grant

-Original Message-
From: Qgis-user  On Behalf Of
qgis-user-requ...@lists.osgeo.org
Sent: Sunday, 29 May 2022 3:00 AM
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Subject: Qgis-user Digest, Vol 195, Issue 37

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Today's Topics:

   1. Error export .shp to .gpx (Mike Breiding - Morgantown WV)
   2. Re: Error export .shp to .gpx (Fernando M. Roxo da Motta)
   3. Re: Error export .shp to .gpx (Mike Breiding - Morgantown WV)


--

Message: 1
Date: Sat, 28 May 2022 08:14:13 -0400
From: Mike Breiding - Morgantown WV 
To: Qgis 
Subject: [Qgis-user] Error export .shp to .gpx
Message-ID: 
Content-Type: text/plain; charset=utf-8; format=flowed

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


--

Message: 2
Date: Sat, 28 May 2022 09:56:09 -0300
From: "Fernando M. Roxo da Motta" 
To: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] Error export .shp to .gpx
Message-ID: <20220528095609.4ade6...@cabore.cwbpr.rx>
Content-Type: text/plain; charset=US-ASCII

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


> 
> 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

-- 
 Non luctari, ludare ---+ WYSIWYG
Fernando M. Roxo da Motta   | Editor?
Except where explicitly stated I speak on my own behalf.|  VI !!
PU5RXO | PX5Q6048   | I see text,
 Quis custodiet ipsos custodes?-+ I get text!
 


--

Message: 3
Date: Sat, 28 May 2022 12:22:25 -0400
From: Mike Breiding - Morgantown WV 
To: pe...@roxo.org, Qgis 
Subject: Re: [Qgis-user] Error export .shp to .gpx
Message-ID: <95b8f0de-ab63-c966-ef1e-2edb06886...@gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed

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
> 


--

Subject: Digest Footer

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End of Qgis-user Digest, Vol 195, Issue 37
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[Qgis-user] Windows 11

[Grant Boxer via Qgis-user]

I have a client who is running QGIS under Windows 11 and is having all sorts
of stability problems and has gone back to version 3.4. Has anyone used QGIS
with Windows 11?

 

Grant Boxer, Perth WA

 

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[Qgis-user] Coordinate Transformation

[Grant Boxer]

Is there a plugin for QGIS that takes two pairs of coordinates, one in 
local (Cartesian) grid and one in real world utm coordinates, that will 
calculate the real world coordinate transformation parameters? I have a 
pile of local grid coordinates I need to convert.


Cheers Grant

Perth WA Australia


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Re: [Qgis-user] Problems with SAGA

[Grant Boxer]

I tested the LTR version as well and had the same problem with the SAGA 
spline gridding algorithm not working. I was trying to grid a point file 
layer in a geopackage and that was unsuccessful. I have now exported the 
geopackage file to a shape file and it works fine. So it seems to be a 
geopackage issue.


On 3/01/2022 9:31 pm, Sebastian Gutwein wrote:
I have not had any problems running SAGA algorithms with the warning. 
Users have been wanting some of the features that new versions of SAGA 
provide so the developers upgraded to SAGA version (maybe only in the 
OSGeo version?) but have not made sure they all work. Qgis is slowly 
moving towards having SAGA as a stand alone plug in and you can use 
the prototype of that called SAGA NextGen provider plug in as a work 
around.


On Mon, Jan 3, 2022 at 7:57 AM Grant Boxer  wrote:

I am trying to run some SAGA algorithms in QGIS v 3.22.2 and I get an
warning message saying SAGA 7.8.2 is not supported. Is there a work
around for this?

Cheers Grant


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[Qgis-user] Problems with SAGA

[Grant Boxer]

I am trying to run some SAGA algorithms in QGIS v 3.22.2 and I get an 
warning message saying SAGA 7.8.2 is not supported. Is there a work 
around for this?


Cheers Grant


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[Qgis-user] Multi-core use

[Grant Boxer]

I have had a query from a user - does QGIS uses multi cores during 
processing?


Cheers Grant
Perth Western Australia

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[Qgis-user] QGIS 3.18 image problems in geopackage file

[Grant Boxer]

Does version 3.18 see raster images in geopackage files differently to 
v3.16? I have created geopackages with raster and vector files in 3.16, 
but now when I try to open the raster images in 3.18, it puts two 
explanation marks (!!) in front of the raster image file name and won't 
open the images. I can open these images if I go via the Open Data 
Source Manager > Raster option, but not ODSM > Geopackage option. Is 
this a bug?


Grant Boxer

Perth, Western Australia

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[Qgis-user] ERMapper ers file format change

[Grant Boxer]

It appears that the newer versions of ers files produced for ERMapper 
(grid) data has changed from version 6 to version 7 and results in QGIS 
not recognising the Eastings and Northings, as they now are called 
MetersX and MetersY. Who should I contact to have a look at this?


Cheers Grant Boxer, Perth WA


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[Qgis-user] Displaying photos on Mac laptop via Attribute Form

[Grant Boxer]

I have been using the Layer Properties dialog box > Attributes Form and 
setting the photo field to "Attachment" then making the necessary 
changes to display the photo when the "Identify" tool is used. This 
works fine on the PC but doesn't seem to work on a Mac. Any suggestions? 
Seems like it might be something to do with the way Macs look at the 
directory path perhaps?


Cheers Grant Boxer, Perth, WA

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[Qgis-user] Selecting Records Using an external Text File

[Grant Boxer]

I have a located file with 20k+ records containing photo file names, 
locations and other data. I have another list of 500+ containing photo 
file names only (one field/column) that I would like to use to extract 
the data from the 20+k file (e.g. location and other info) by using the 
photo file name. Is there an expression to compare a value in a field in 
the small text file and select that record in the larger file, i.e. 
select by using the small text file? Any suggestions? Hope this makes sense.


Cheers Grant Boxer

Perth Western Australia

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Re: [Qgis-user] Polygon from 4 points

[Grant Boxer]

I am playing around with data entry options and wondered if I can use the
graphical modeller to add data, e.g. x y coordinates as live input not from
a file. Can the data entry be saved as variable which can then be used in
the make polygon expression?

Cheers Grant



--
Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html
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[Qgis-user] Create polygons from coordinates in graphical modeller

[Grant Boxer]

I am sure there is a simple way to do this, but I am trying to write a 
simple graphical modeller model that will allow me to add four 
coordinate points to create a rectangle/polygon. What algorithm do I use 
to go from four x y coordinate points entered as x1, y1, x2, y2 etc to 
create points in a new layer?


Thanks Grant


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[Qgis-user] Displaying vertical cross sections in QGIS 3D

[Grant Boxer]

Are we able to display vertical raster images in 3D? In particular I 
want to be able to bring in raster cross sections with XYZ coordinates 
for the four corner points so I can display them vertically in 3D 
underneath geology for example. Any thoughts?


Cheers Grant


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[Qgis-user] Layout Guides

[Grant Boxer]

I have saved a print template with guides, but when I re-open the layout 
template, the guides are not shown. I have the "Show Guides" etc ticked 
on. Should the guides be saved with the template? Is there something I 
am missing?


Grant Boxer Perth WA


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[Qgis-user] Graphical Modeller Question

[Grant Boxer]

I am trying to use the GDAL "Build Virtual Raster" in the graphical 
modeller, but I can only seem to get it to take one input, not three 
bands necessary for an RGB image. Any suggestions?


Cheers Grant


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[Qgis-user] Selecting maximum values in drill holes

[Grant Boxer]

I am trying to find out the best way to select the highest values in a 
set of drill holes as well as the bottom of hole values. The files 
contain drill hole id, depth from, depth to and assay values. If have 
tried the maximum function but I don't think I have the syntax correct. 
Anyone have any suggestions?


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[Qgis-user] QGIS Earth Sciences and Geology Support

[Grant Boxer]

I have been recently seeking support for the development of a drill hole 
and cross section plugin for QGIS, with particular application to the 
geological community in mineral exploration and mining. I have looked 
through the QGIS core contributers and contributers list and there does 
not seem to be a QGIS contributor that specialises in earth sciences - 
geology applications. Is this a marketing opportunity for someone? A big 
issue preventing many of the exploration companies taking up QGIS in 
Australia is the lack of the drill hole and geological modelling. This 
is probably also a factor in other regions as well. I know Oslandia has 
done some drill hole and geological work with their Albion plugin. Any 
recommendations appreciated.


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[Qgis-user] Error for new download 3.12.3

[Grant Boxer]

The link for version 3.12.3 download is not working. Tried it last night 
and this morning.


Regards Grant Boxer

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[Qgis-user] Seeking support for drill hole module

[Grant Boxer]

I am trying to gauge support for the development of a drill hole and 
cross section plugin for QGIS. I have emailed members of my geoscience 
user group and have received about euros 3000 in initial pledges for a 
crowd funding initiative. If you would like to support this initiative 
please email me at box...@iinet.net.au so I can add you to my list of 
supporters. In my preliminary discussions with one developer, they have 
suggested a possible expansion of the Midvatten plugin that already has 
some of the functionality required. I would be really keen to hear 
opinions from other users on the best way forward for this plugin and 
with the longer term aim of having a full 3D block modelling capability.


Regards Grant Boxer

Perth, Western Australia

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[Qgis-user] AVIRIS Data

[Grant Boxer]

I am trying import an AVIRIS (224 band hypersectral satellite data from 
NASA) and although the image opens the images appears to be scrambled. 
The file is a *.hdr file which I can open via the Raster open option. 
The data type is Int16 - Sixteen bit signed integer and I was wondering 
if this is causing the problem.


Cheers Grant

Perth, Western Australia

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[Qgis-user] Sentinel 3 Data

[Grant Boxer]

Has anyone imported the Sentinel 3 data into QGIS? It appears to be in 
an "nc" format but it seems to loose the registration info when I import 
it. Any suggestions?


Cheers Grant


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[Qgis-user] Package Layers Algorithm

[Grant Boxer]

I have been using the Package Layers algorithm to create geopackages for 
complex projects. Who would I contact to see if we can improve this 
algorithm by packaging layers as per the order and grouping in the 
Layers Panel? Currently the package layers just copies all the layers in 
alphabetical order.


Cheers Grant Boxer


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[Qgis-user] Loading matlab files into QGIS

[Grant Boxer]

I have a *.mat file which is apparently a MATLAB file. It is AVRIS 
multispectral imagery from NASA and I am trying to read it into the 
Orfeo Tool Box. Any suggestions?


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[Qgis-user] Print Layout Options

[Grant Boxer]

Is there a way I can snap a map window in a print layout to fit a layer
extent? For example I want the print layout window to fit the extent of a
map (e.g. published 1:100k series map) so that the coordinates go outside
the map frame without white space. Any thoughts?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Geophysical Data

[Grant Boxer]

I have a data set of located data from a magnetic survey and I am wondering
if there is a way to plot "stacked profiles" where the magnetic values are
offset from the flight lines by their value?

Any suggestions whether this is possible in QGIS/Processing Toolbox?

 

Grant Boxer

Perth, Western Australia

 

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Re: [Qgis-user] Import of Large CSV File

[Grant Boxer]

Hi Chris,

That worked! I used the command line as you suggested and I then needed to
create a table from points to get the locations registered. Thanks.

There is probably a way to do that on the import - I will need to do a
little research.

Cheers Grant
Perth WA

-Original Message-
From: Chris Crook  
Sent: Wednesday, 17 April 2019 2:26 AM
To: Grant Boxer 
Subject: RE: [Qgis-user] Import of Large CSV File

Hi Grant

That is probably pushing the delimited text provider ... it doesn't import
the CSV file, it reads it directly.  So even if it did load it would be very
slow to use for any sort of searching, zooming, feature selection etc.  I'd
suggest turning into some sort of database format, for example geopackage
(which is just another file - it doesn't need a database server).  You could
do that with the ogr2ogr.  The ogr2ogr command line would be something like

ogr2ogr -f GPKG mydata.gpkg mydata.csv

It would probably need some other options depending on the content of the
CSV file and the coordinate reference system.

Cheers
Chris

From: Qgis-user [qgis-user-boun...@lists.osgeo.org] on behalf of Grant Boxer
[box...@iinet.net.au]
Sent: 16 April 2019 20:07
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] Import of Large CSV File

I have a 2.5 GB csv file which contains 9 fields and 17,167,595 records.
QGIS does not seem to be able to import this using the "Delimited Text"
option. Any suggestions?

Regards Grant

Grant Boxer
Perth, Western Australia




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[Qgis-user] Import of Large CSV File

[Grant Boxer]

I have a 2.5 GB csv file which contains 9 fields and 17,167,595 records.
QGIS does not seem to be able to import this using the "Delimited Text"
option. Any suggestions?

 

Regards Grant

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Mac User Issues jp2 files

[Grant Boxer]

I have been running workshops using QGIS 3.6 and the Mac users have been
unable to open jp2000 images. Does anyone have a fix for this?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Resampling Problem

[Grant Boxer]

Merry Christmas everyone.

 

I am trying to resample a Sentinel 2 image from 20 m to 10m pixel size and I
keep getting the message below and the process fails. I am using the SAGA >
Raster Tools > Resampling algorithm. I have tried the jp2 and tiff formats
but get the sample result. I am running QGIS 3.4.3 on Win10 and writing to a
writable location.

 

Any suggestions?


 library path: C:\PROGRA~1\QGIS3~1.4\apps\saga-ltr\modules\
 library name: grid_tools
 library : Tools
 tool : Resampling
 author : O.Conrad (c) 2003
 processors : 8 [8]
 
 Load grid:
C:/Users/Grant/AppData/Local/Temp/processing_d4f86f6af8d74bca9b33a6df320cb31
d/0ea4b26c8ec749c3a68a81d40c496b46/SA2T51KWQB12tif.sgrd...
 failed
 Resampling: could not initialize data objects

 

Grant Boxer

Perth, Western Australia

 

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Re: [Qgis-user] 3d viewer

[Grant Boxer]

I have had similar 3D viewing problems. I would recommend you try the
QGIS2Threejs plugin. It works there, just right click the vector layer in
view window and specify which field has the z values. Happy to discuss
further by email (box...@iinet.net.au <mailto:box...@iinet.net.au> ).

 

Regards Grant

 

Grant Boxer

Perth, Western Australia

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[Qgis-user] Geopackage File Styles

[Grant Boxer]

Is there a way to save the styling information for each layer when creating
a geopackage using the "Package Layers" option? I have tried to do this but
every layer loses its style and has to be re-applied.

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Surpac Files

[Grant Boxer]

Has anyone imported Surpac (mine planning software) string files into QGIS?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] GeoPackage and Raster Files

[Grant Boxer]

I have created separate geopackage files for raster and vector files in QGIS
3. Can these types be merged into one geopackage file and if so what is the
process?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Opening dxf files for 3D

[Grant Boxer]

I am trying to import a 3D dxf for viewing in QGIS v3 either via the 3D
window or QGIS2Threejs plugin. Whenever I import a dxf there does not appear
to be any z data imported. Does anyone have any suggestions?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Connecting to Access database

[Grant Boxer]

I have used the Data Source Manager > Vector > Database method to connect to
an Access database but when I add any layer, there is no option to specify
coordinate columns, and therefore adds the file with no geometry.  Is there
a way to do this on opening a table, or is there a different method?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] eVis Plugin Query

[Grant Boxer]

I am having problems using eVis on multiple layers in my map window (using
QGIS 3.2). I can get the eVis plugin working fine on one layer (for example
site photos), but when I add another layer (with reports) in another layer,
the latest layer settings overwrites the original layer settings in the eVis
options. So my question is - can I have more than one layer with specific
eVis settings in a map window?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Coordinate Conversion

[Grant Boxer]

I have local grid coordinates (no projection) and I want to convert it into
real world (GDA94 z 50) UTM coordinates. I have 4 points with both local and
real world coordinates. I have looked at using v.transform but I need a way
to calculate the parameters for the transform. Any suggestions where/how I
can do this?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Bug Reporting

[Grant Boxer]

I am trying to register to report a bug in v3 but although I have registered
on the QGIS Issue Tracking Page, I continually fail to get a conformation
email. Any thoughts on why or who I need to contact?

 

Grant Boxer

Perth, Western Australia

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[Qgis-user] Printer Problem

[Grant Boxer]

I am using QGIS v3.0.2 on a Win10 machine. I am trying to print an A3
landscape map but it keeps plotting it with a portrait orientation (and
hence cut in half) even though I have set all the page and printer settings
to print landscape. I would appreciate it if someone can test this on their
PC's to check it is not just my local problem. Printing to pdf works fine. I
have tried this on a couple of different printers with the same result.

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Principal Components Analysis Problem

[Grant Boxer]

I am trying to do a PCA on ASTER satellite data using bands 4 through 9 (all
30 m pixel size). I have tried using the Processing Toolbox > Grass >
Imagery>i.pca but it continually fails.

 

I get this at the end of processing.


_

Traceback (most recent call last):
File
"C:/PROGRA~1/QGIS3~1.0/apps/qgis/./python/plugins\processing\algs\grass7\Gra
ss7Algorithm.py", line 395, in processAlgorithm
if isinstance(out, QgsProcessingOutputHtml):
NameError: name 'QgsProcessingOutputHtml' is not defined

Execution failed after 16.32 seconds

 

Loading resulting layers

Algorithm 'i.pca - Principal components analysis (PCA) for image
processing.' finished


_

When using the SemiAutomatic Classification PCA calculator I get the
following error message.

 

2018-04-11T14:51:00 WARNING Traceback (most recent call last):

File
"C:/Users/Grant/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\S
emiAutomaticClassificationPlugin\maininterface\pcaTab.py", line 46, in
calculatePCAAction

self.calculatePCA()

File
"C:/Users/Grant/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\S
emiAutomaticClassificationPlugin\maininterface\pcaTab.py", line 97, in
calculatePCA

self.PCACalculation(rD, bL, outF, numbComp, None, batch)

File
"C:/Users/Grant/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\S
emiAutomaticClassificationPlugin\maininterface\pcaTab.py", line 140, in
PCACalculation

comp, totalVariance, totalVarianceCumulative, eigenValues =
self.calculateEigenVectors(covM)

File
"C:/Users/Grant/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\S
emiAutomaticClassificationPlugin\maininterface\pcaTab.py", line 264, in
calculateEigenVectors

val, vect = cfg.np.linalg.eigh(matrix)

File
"C:\PROGRA~1\QGIS3~1.0\apps\Python36\lib\site-packages\numpy\linalg\linalg.p
y", line 1291, in eigh

w, vt = gufunc(a, signature=signature, extobj=extobj)

File
"C:\PROGRA~1\QGIS3~1.0\apps\Python36\lib\site-packages\numpy\linalg\linalg.p
y", line 96, in _raise_linalgerror_eigenvalues_nonconvergence

raise LinAlgError("Eigenvalues did not converge")

numpy.linalg.linalg.LinAlgError: Eigenvalues did not converge


_____

Can anyone shed any light on what is happening here?

 

Cheers Grant

 

Grant Boxer (FAIG RPGeo)

Maylands, Western Australia, 6931

 

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[Qgis-user] 3D View Crash and Bug Reporting

[Grant Boxer]

I am using v3.0.1 and when I rotate a 3D view, QGIS crashes. I have tried to
use the bug reporting system but I cannot seem to register. It says it has
sent me a confirmatory email, but it never arrives.

 

Cheers Grant

 

Grant Boxer

Perth, Western Australia

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[Qgis-user] QGIS v3 Profile Tool Not Working

[Grant Boxer]

The profile tool plugin works in v2 but I cannot get it to work in v3. I am
running Win10 64 bit. Any suggestions?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] QGIS v3 Layout Manager

[Grant Boxer]

In v2 I set the page size first using the Print Composer > Composition tab >
Page Size (e.g. A4 landscape). I then add my template of the correct size.
In v3 there does not seem to be a composition tab. Under the new Layout tab,
there doesn't appear to be anywhere to add the page size and orientation?
Does this now have to be done in the Composer > Page Setup option?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Google Satellite Images v3

[Grant Boxer]

Does anyone know how to access Google (and other) satellite images in
version3? In ver2 I used the QuickMapServices plugin.

 

Grant Boxer

Maylands, Western Australia, 6931

 

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[Qgis-user] Print Composer Templates in v2_99

[Grant Boxer]

I am trying to apply/use a template in print composer from v.2.18.16 but
v2_99 does not seem to able to display it. Do we need to re-create our
templates for the new version?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Problem installing 2.99

[Grant Boxer]

I have downloaded the weekly snapshop "QGIS-OSGeo4W-2.99.0-5-Setup-x86.exe"
and have tried installing it to a non-C drive location. About 90% through
the install process it comes up with error - Extract:error writing to file
oraociei11.dll.

 

Is this caused by not installing to C drive or another problem?

 

Cheers Grant

 

Grant Boxer

Consultant Geologist (FAIG R.P. Geo)

Perth, Western Australia

 

Email:  <mailto:box...@iinet.net.au> box...@iinet.net.au

Mobile: 0418 954 059

Skype: grantboxer

Website:  <http://www.iinet.net.au/~gboxer> www.iinet.net.au/~gboxer

 

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[Qgis-user] Problem Merging Raster Images

[Grant Boxer]

I am trying to merge three adjacent and partly overlapping ASTER bands to
create a mosaic. When I try the merge and mosaic tools (in the
Raster>Miscell>Merge and Processing Toolbox) I get white space in the
overlap areas. All the rasters are in the same projection as is the project
projection. Can anyone suggest a tool where the overlapping areas are
averaged or takes the first image data only and that does not give me white
space in the overlapping areas? 

 

Grant Boxer

Maylands, Western Australia

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[Qgis-user] Assistance for Mac User

[Grant Boxer]

I have an associate with a Mac and I am trying to found out how and where to
put custom svg files on a Mac so the QGIS recognises them. I am a PC user so
not familiar with Mac procedures.

 

Grant Boxer

Perth, Western Australia

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[Qgis-user] GPS Upload

[Grant Boxer]

I am trying to upload GPS points from a gpx file and trying to use the "GPS
Tools" upload gpx file option. When I select the "Upload to GPS" tab, I
cannot select a data layer to upload. 

I have converted the gpx file to WGS84 coordinates and imported it to my GPS
via BabelGPS, so I know the gpx file is OK but am trying to simplify the
upload by using QGIS directly. Any suggestions?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Build Virtual Raster Crash

[Grant Boxer]

I am using QGIS v2.18.13 on a Win10 64-bit PC and after creating a virtual
raster, if I press OK instead of cancel, QGIS crashes. I don't think this
happened on previous versions.

 

Can anyone else replicate this, or is machine specific?

 

Regards Grant Boxer

Perth, Western Australia

 

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[Qgis-user] GPS Tools

[Grant Boxer]

I have installed QGIS 2.18.8 and the GPS Tools for importing gpx files now
causes QGIS to crash - it was OK in earlier versions.

 

I can open the gpx file via the Vector > open (file type gpx) with no
problems, so there seems to be a problem with the GPS Tools plug-in.

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Merging Sentinel Images

[Grant Boxer]

I am attempting to merge two adjacent Sentinel 2 images, but when I do it
via the Raster > Miscellaneous > Merge option, I get the two merged parts
with a different scaling in the merged image. Any suggestions on how to get
a consistent scaling across the entire merged image?

 

Grant Boxer

Maylands, Western Australia, 6931

 

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[Qgis-user] Merging Raster Images

[Grant Boxer]

I am having difficulty merging two adjacent Sentinel 2A satellite band
jp2/tif images. I have been trying the Raster > Miscellaneous > Merge
process but I do not get a combined image as a result. Usually I end up with
the intersection area only. Any suggestions?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Web menu item disappeared

[Grant Boxer]

I tried installing QGIS v2.18.6 but then the SCP plugin failed to work. I
have re-installed v2.18.5 but now my Web menu item has disappeared.

 

I have tried uninstall and re-install without success. Can anyone suggest
how to fix this problem?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Problems Plotting Using QGIS Algorithms

[Grant Boxer]

I am trying to use the Processing Toolbox > QGIS Algorithms to plot bar and
histogram plots. Every time I try to run it, it crashes QGIS. I have tried
re-installing the older version of matlib (1.3.0) but I get the same
problem. Can anyone offer any other suggestions, or perhaps a good free
graphical plotting program that I can use for geochemical data (histograms,
cumulative frequency plots, etc).

 

Grant Boxer

Perth, Western Australia

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[Qgis-user] Change Field Type

[Grant Boxer]

I have imported numeric data and some fields have come in as "double - REAL"
but others have come in as "qlonglong - Integer64". Is there any way of
modifying the field type for a shape file as I want them all as "double -
REAL"? Or is there some formatting required of the numbers before you import
an excel or csv file?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Processing Toolbox

[Grant Boxer]

I am trying to run the QGIS algorithms in the Processing Toolbox. What I am
trying to do is plot univariate data using the Graphics options, bar plot,
mean and stdev, histogram plots etc. When I try to run these algorithms,
QGIS crashes. Anyone have any suggestions? I am trying to process
geochemical data and need plots of the data.

 

Grant Boxer

Perth, Western Australia

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[Qgis-user] New Australian Datum GDA2020

[Grant Boxer]

Australia is planning to adopt a new datum "GDA2020" (EPSG's 1168, 7842-7859
and 7899) and I was wondering when this might be included in the QGIS
projection list?

 

Cheers Grant

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] QGIS hangs on multiple edits

[Grant Boxer]

I am adding polygons into a shape file and after about 10 additions, QGIS
hangs or takes a very long time to respond. If I save and end the edit
session after say 5 additions, it appears to be OK. Anyone know why this
might be happening? Could this be being caused by a large number of nodes in
the polygon file being edited?

 

Grant Boxer

Maylands, Western Australia, 6931

 

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[Qgis-user] Multiple Map Windows

[Grant Boxer]

Is it possible to have more than one map window open at the one time? In
MapInfo it is useful having two map windows with different contents being
able to be displayed in the one map composer (layout) window. This is really
handy when producing graphics for reports etc. Can QGIS do this?

 

Grant Boxer

Perth, Western Australia

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[Qgis-user] Merging Raster Scenes

[Grant Boxer]

I am trying to merge bands from two ASTER scenes and would like to get the
bands to merge with the same greyscale stretch and avoid the different grey
scale shade of each scene which results in a colour change across the join.
I have created the rasters using the SCP plug-in using the DOS1 and Celsius
corrections/calculation. I can get them to merge OK but would like a
seamless join. Any suggestions?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Non-Earth Coordinates

[Grant Boxer]

Is there an option in QGIS to select a non-earth coordinate system? This is
useful when you get data in a local grid without a readily available
conversion to real earth coordinates. There is this option in MapInfo and it
is really handy when dealing with old data. The "local grid" can then be
transformed later when a  conversion can be determined.

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Merge Raster Problem

[Grant Boxer]

I am trying to merge (under Raster>Miscell>Merge) two adjacent ASTER
satellite scenes and I keep getting a merge result that only contains the
overlapping area, not an image of two complete scenes. Can anyone point out
what I might be doing wrong?

 

Grant Boxer (FAIG RpGeo)

Maylands, Western Australia

 

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[Qgis-user] New Projection Definition

[Grant Boxer]

I am trying to import a raster image of the North American geology

(https://ngmdb.usgs.gov/gmna/) and the projection is defined as Modified
spherical transverse Mercator with a central meridian of 100 deg W and a
scale factor of 0.926.

 

My attempt is here "+proj=tmerc +lat_0=0 +lon_0=-100 +k=0.9261
+x_0=0 +y_0=0 +a=6371204 +b=6371204 +units=m +no_defs" but this does not
work.

 

The shp files associated with the image have prj files as follows 

 

PROJCS["User_Defined_Transverse_Mercator",

GEOGCS["GCS_User_Defined",DATUM["D_User_Defined",

SPHEROID["User_Defined_Spheroid",6371204.0,0.0]],

PRIMEM["Greenwich",0.0],

UNIT["Degree",0.0174532925199433]],

PROJECTION["Transverse_Mercator"],

PARAMETER["False_Easting",0.0],

PARAMETER["False_Northing",0.0],

PARAMETER["Central_Meridian",-100.0],

PARAMETER["Scale_Factor",0.926],

PARAMETER["Latitude_Of_Origin",0.0],

UNIT["Meter",1.0]]

 

Can anyone suggest changes to my projection file that I would need for this?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] New Projection

[Grant Boxer]

I am trying to import a raster image of the North American geology
(https://ngmdb.usgs.gov/gmna/) and the projection is defined as Modified
spherical transverse Mercator with a central meridian of 100 deg W and a
scale factor of 0.926.

 

Can anyone supply/create the necessary projection file that I would need to
import this?

 

Grant Boxer

Perth, Western Australia

 

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[Qgis-user] Lat/Long Grids

[Grant Boxer]

Is there a way to draw a geographic grid with degrees-min with exact
minutes? I don't seem to be able to find the option to specify the
degrees-minutes option when displaying coordinates in the map composer. I
get decimal degrees-minutes with odd decimal grid values (e.g. 16deg 42.7'
for example). The interval is only displayed in decimal degrees. Is there an
option to specify the minute value?

 

Grant Boxer

Consultant Geologist (FAIG R.P. Geo)

Perth, Western Australia

 

Email:  <mailto:box...@iinet.net.au> box...@iinet.net.au

Mobile: 0418 954 059

Skype: grantboxer

Website:  <http://www.iinet.net.au/~gboxer> www.iinet.net.au/~gboxer

 

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