Re: [Qgis-user] background transparency

2017-08-15 Thread Brett Adams 
Hi Richard,

 

Trialled your suggestion and others contained in the gis.stackexchange.com 
link.Always get the same result where if any of the three bands contain a 
0, it’s removed. 

 

Maybe I’ve got the syntax slightly wrong?

 

 

Original 

gdalwarp -overwrite -s_srs EPSG:28351 ""C:/Brett.tif" 

 

Trialled variations

 

gdalwarp -overwrite -srcnodata "0,0,0" -dstnodata "0,0,0" -s_srs EPSG:28351 -of 
GTiff "C:/Brett.tif" "C:/Brett2.tif"

 

gdalwarp -overwrite -srcnodata "0,0,0" -dstnodata "0,0,0" -of GTiff 
"C:/Brett.tif" "C:/Brett2.tif"

 

gdalwarp -overwrite -srcnodata None -dstnodata None -dstalpha -s_srs EPSG:28351 
-of GTiff "C:/Brett.tif" "C:/Brett2.tif"

 

Brett

 

 

From: Richard McDonnell [mailto:richard.mcdonn...@opw.ie] 
Sent: Tuesday, 15 August 2017 11:17 PM
To: Brett Adams; qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] background transparency

 

Hi,
Just looking into this, but you might try whats outlined here

https://gis.stackexchange.com/questions/166699/replacing-rgb-value-0-0-0-with-nodata-nodata-nodata-in-gdal

Warp, can be found under Raster, Projections, Warp fill in the fields just as 
you done before for the Translate, with the exception of the nodata field.

At the bottom where you see the GDAL script being constructed, you should also 
see a Pencil or Pen icon, select this, it will allow you to directly edit the 
script.
You should paste -srcnodata "0,0,0" -dstnodata "0,0,0" just after -overwrite so 
as you have something like below.

gdalwarp -overwrite -srcnodata "0,0,0" -dstnodata "0,0,0" -of GTiff 
raster_in.tif raster_out.tif

Hope this helps.

Regards,

Richard.





On 15/08/2017 13:42, Brett Adams wrote:

Richard,

 

Thanks for your response.Gave this a run but it’s not quite working.

 

Looks like the problem stems from the colour being defined across three bands, 
with black defined by 0,0,0

 





 

 

When “No data = 0” this clears all colours where band 1 = 0.  Which includes a 
lot more colours than just black.

 

Tried entering a few different formats to cover the all 3 bands but the second  
2 are always ignored.

 

Any thoughts as to how I get 3 bands recognised?

 

Brett

 

 

 

From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Richard 
McDonnell
Sent: Monday, 14 August 2017 10:16 PM
To: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] background transparency

 

Brett, 
Apologies, ive just realised your version of QGIS may not have the processing 
toolbox.
You may also do this by going to RASTER, Conversion and selecting Translate Its 
the very same tool just a different interface
Regards,

Richard

On 14/08/2017 15:04, Richard McDonnell wrote:

Hi Brett
You can indeed, just use the Processing toolbox, just type Translate into the 
search box and select the Translate Tool under GDAL.
The values you specified as transparent, can be specified under the Nodata Value
You can also do this as part of a batch if you have a number of files, you wish 
to do this for.

Hope this helps,

Richard.

On 14/08/2017 14:07, Brett Adams wrote:

Hi Folks,

 

I have a geotiff that contains a black ground in areas where there is no data.  
The black background is made transparent within QGIS via “Layer Properties – 
Transparency”

 

Can I export a new Geotiff with the black background removed?

 

I’m running 2.6.1 On Windows-7.Yes, I know it’s an old version but I’ve had 
no reason to update.  So far…

 

Thanks

 

Brett  Adams

Spinifex-GPX

0438 861 974

 







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52 Stephens Green, Dublin 2.
TEL: 01 6476543

  



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OPW FRM Data Management
52 Stephens Green, Dublin 2.
TEL: 01 6476543

 

-- 
Richard McDonnell
GIS Specialist PgD GIS AssocSCSI
OPW FRM Data Management
52 Stephens Green, Dublin 2.
TEL: 01 6476543

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Re: [Qgis-user] plugin for drones

2017-08-15 Thread Alex M 
Sort of, WebODM appears to install a virtual machine, which is how
OpenDroneMap is distributed. So it probably talks over a local network.
I guess a plugin could be written where you just provide the url/ip of
the server for processing.

Thanks,
Alex

On 08/15/2017 11:01 AM, Lene Fischer wrote:
> Not correct.
> You can install WebODMon windows too.
> Look at WEBODM.org.
> 
> I have judt been giving a workshop at FOSS4G in Boston about the topic.
> It has a very poor GCP interaction - but in a very short time it would be 
> better. Stephen Mather was 5 minutes to tell about the issues.
> 
> Regards
> 
> 
> Lene Fischer
> Associate Professor
> 
> University of Copenhagen
> Department of Geoscience and Natural Resource Management
> Forest and Landscape College
> Nødebovej 77a
> 3480 Fredensborg
> Denmark
> 
> 
> MOB +45 40115084
> l...@ign.ku.dk
> -Original Message-
> From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Alex M
> Sent: 14. august 2017 22:05
> To: Alexandre Neto; Nuno de Santos Loureiro; qgis-user@lists.osgeo.org
> Subject: Re: [Qgis-user] plugin for drones
> 
> My colleagues and I just tested the following Android apps:
> DroneDeploy
> Litchi (Use this website to make the plan and download it Litchi
> https://croptsrv-cdc.it.csiro.au/shiny/users/zhe00a/missionplanner/)
> Pix4d Capture
> PrecisionFlight
> 
> OpenDroneMap is an open source option for stitching your photos. It produces 
> a Geotiff you can use in QGIS. You could wrap it in QGIS, but only on a Linux 
> box.
> 
> Thanks,
> Alex
> 
> 
> On 08/14/2017 11:48 AM, Alexandre Neto wrote:
>> Nuno,
>>
>> Foe
>>
>> A seg, 14/08/2017, 19:05, Nuno de Santos Loureiro 
>> escreveu:
>>
>>> Hello all,
>>>
>>> Can anyone be so kind to send suggestions about flight planners for 
>>> DJI Phantom drones that run in android devices?
>>>
>>> And QGIS plugins to make georeferenced aerial coverages using a few 
>>> hundreds of DJI Phantom vertical pictures?
>>>
>>> Many thanks for your attention,
>>>
>>> Nuno
>>>
>>>
>>> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
>>> Nuno de Santos Loureiro (PhD)
>>> Faculdade de Ciências e Tecnologia - DCTMA - Ed. 8 Universidade do 
>>> Algarve Campus de Gambelas
>>> 8005-139 FARO   (Portugal)
>>> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
>>>
>>> 
>>> This message was sent using IMP, the Internet Messaging Program.
>>>
>>> ___
>>> Qgis-user mailing list
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>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>>
>>
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[Qgis-user] QGIS Conference 2017 - Report Back

2017-08-15 Thread Tim Sutton 
Hi all

I have written up a little report back of some of the highlights from the
QGIS Conference held in Nødebo, Denmark the week before last. A massive
"thank you" to Lene Fischer (event organizer) and the University of
Copenhagen’s “Skovskolen” Forestry and Landscape College for hosting the
event!

http://blog.qgis.org/2017/08/15/report-back-on-the-3rd-qgis-conference-in-nodebo-denmark/

Regards

Tim

-- 



*Tim Sutton*
QGIS Project Steering Committee Chair
t...@qgis.org
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Re: [Qgis-user] plugin for drones

2017-08-15 Thread Lene Fischer 
Not correct.
You can install WebODMon windows too.
Look at WEBODM.org.

I have judt been giving a workshop at FOSS4G in Boston about the topic.
It has a very poor GCP interaction - but in a very short time it would be 
better. Stephen Mather was 5 minutes to tell about the issues.

Regards


Lene Fischer
Associate Professor

University of Copenhagen
Department of Geoscience and Natural Resource Management
Forest and Landscape College
Nødebovej 77a
3480 Fredensborg
Denmark


MOB +45 40115084
l...@ign.ku.dk
-Original Message-
From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Alex M
Sent: 14. august 2017 22:05
To: Alexandre Neto; Nuno de Santos Loureiro; qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] plugin for drones

My colleagues and I just tested the following Android apps:
DroneDeploy
Litchi (Use this website to make the plan and download it Litchi
https://croptsrv-cdc.it.csiro.au/shiny/users/zhe00a/missionplanner/)
Pix4d Capture
PrecisionFlight

OpenDroneMap is an open source option for stitching your photos. It produces a 
Geotiff you can use in QGIS. You could wrap it in QGIS, but only on a Linux box.

Thanks,
Alex


On 08/14/2017 11:48 AM, Alexandre Neto wrote:
> Nuno,
> 
> Foe
> 
> A seg, 14/08/2017, 19:05, Nuno de Santos Loureiro 
> escreveu:
> 
>> Hello all,
>>
>> Can anyone be so kind to send suggestions about flight planners for 
>> DJI Phantom drones that run in android devices?
>>
>> And QGIS plugins to make georeferenced aerial coverages using a few 
>> hundreds of DJI Phantom vertical pictures?
>>
>> Many thanks for your attention,
>>
>> Nuno
>>
>>
>> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
>> Nuno de Santos Loureiro (PhD)
>> Faculdade de Ciências e Tecnologia - DCTMA - Ed. 8 Universidade do 
>> Algarve Campus de Gambelas
>> 8005-139 FARO   (Portugal)
>> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
>>
>> 
>> This message was sent using IMP, the Internet Messaging Program.
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
> 
> 
> 
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Re: [Qgis-user] Strike and dip symbology and labels

2017-08-15 Thread Fernando M. Roxo da Motta 
On Tue, 15 Aug 2017 14:05:44 +0100, Lester Anderson
 wrote:

  Hi Lester,

  Few days ago Martin Bain sent an answer to a message with subject
"Geology symbols", from Alan Younger.   I think his answer will fit
your needs:

On Wed, 9 Aug 2017 00:05:40 +, Martin Bain
 wrote:


> Hi Allan,
> I’m not a geologist, but I wonder if you have seen this recent QGIS
> blog post:
> https://ieqgis.wordpress.com/2017/07/14/using-trigonometry-to-place-and-orientate-labels/
> 
> I hope it might be of some use.
> Cheers,
> Martin.
> 
> From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf
> Of Allan Younger Sent: Tuesday, 8 August 2017 8:08 PM
> To: qgis-user@lists.osgeo.org
> Subject: [Qgis-user] Geology symbols
> 
> How do you insert mapped structural symbols into a plan?
> These have a compass orientation & inclination direction.
> These can be any orientation but I cannot see how you can have in one
> layer. Only close success I have had putting single symbols in a
> layer, must be a better way. Allan Younger
> 

  Cheers!


> Hello,
> 
> I have strike and dip structural geology data and would like to plot
> the symbols with correctly positioned labels for the dip marker. The
> strike angle can be used for the rotation in a clockwise direction,
> but labelling the dip vector of the symbol is very hit and miss.
> 
> A typical data file would be:
> 
> Longitude, Latitude, Strike (clockwise from 0 degrees), dip direction
> (orthogonal to strike).
> 
> Is there an easy method to deal with this? I can manually position the
> labels with offsets, but for a lot of data this would be a time
> consuming task!
> 
> Thanks
> 
> Lester
> 
> QGIS version 2.18.11
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  Roxo

-- 
 Non luctari, ludare ---+ WYSIWYG
Fernando M. Roxo da Motta   | Editor?
Except where explicitly stated I speak on my own behalf.|  VI !!
  ( Usuário Linux registrado #39505 )   | I see text,
 Quis custodiet ipsos custodes?-+ I get text!
 
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Re: [Qgis-user] Strike and dip symbology and labels

2017-08-15 Thread Lester Anderson 
Just added an example of what I mean. Basically it is making the dip
label follow the short tick; at the moment one has to manually adjust
the label position.

On 15 August 2017 at 15:32, Karl Magnus Jönsson
 wrote:
> Hi!
> I can't visualize, in my head, what you are trying to achieve and what's 
> going wrong. Can you supply a simple sketch?
>
> Karl-Magnus Jönsson
>
>
> -Ursprungligt meddelande-
> Från: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] För Lester Anderson
> Skickat: den 15 augusti 2017 15:06
> Till: qgis-user@lists.osgeo.org
> Ämne: [Qgis-user] Strike and dip symbology and labels
>
> Hello,
>
> I have strike and dip structural geology data and would like to plot the 
> symbols with correctly positioned labels for the dip marker. The strike angle 
> can be used for the rotation in a clockwise direction, but labelling the dip 
> vector of the symbol is very hit and miss.
>
> A typical data file would be:
>
> Longitude, Latitude, Strike (clockwise from 0 degrees), dip direction 
> (orthogonal to strike).
>
> Is there an easy method to deal with this? I can manually position the labels 
> with offsets, but for a lot of data this would be a time consuming task!
>
> Thanks
>
> Lester
>
> QGIS version 2.18.11
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Re: [Qgis-user] Strike and dip symbology and labels

2017-08-15 Thread Karl Magnus Jönsson 
Hi!
I can't visualize, in my head, what you are trying to achieve and what's going 
wrong. Can you supply a simple sketch?

Karl-Magnus Jönsson


-Ursprungligt meddelande-
Från: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] För Lester Anderson
Skickat: den 15 augusti 2017 15:06
Till: qgis-user@lists.osgeo.org
Ämne: [Qgis-user] Strike and dip symbology and labels

Hello,

I have strike and dip structural geology data and would like to plot the 
symbols with correctly positioned labels for the dip marker. The strike angle 
can be used for the rotation in a clockwise direction, but labelling the dip 
vector of the symbol is very hit and miss.

A typical data file would be:

Longitude, Latitude, Strike (clockwise from 0 degrees), dip direction 
(orthogonal to strike).

Is there an easy method to deal with this? I can manually position the labels 
with offsets, but for a lot of data this would be a time consuming task!

Thanks

Lester

QGIS version 2.18.11
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[Qgis-user] Strike and dip symbology and labels

2017-08-15 Thread Lester Anderson 
Hello,

I have strike and dip structural geology data and would like to plot
the symbols with correctly positioned labels for the dip marker. The
strike angle can be used for the rotation in a clockwise direction,
but labelling the dip vector of the symbol is very hit and miss.

A typical data file would be:

Longitude, Latitude, Strike (clockwise from 0 degrees), dip direction
(orthogonal to strike).

Is there an easy method to deal with this? I can manually position the
labels with offsets, but for a lot of data this would be a time
consuming task!

Thanks

Lester

QGIS version 2.18.11
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Re: [Qgis-user] background transparency

2017-08-15 Thread Brett Adams 
Richard,

 

Thanks for your response.Gave this a run but it’s not quite working.

 

Looks like the problem stems from the colour being defined across three bands, 
with black defined by 0,0,0

 



 

 

When “No data = 0” this clears all colours where band 1 = 0.  Which includes a 
lot more colours than just black.

 

Tried entering a few different formats to cover the all 3 bands but the second  
2 are always ignored.

 

Any thoughts as to how I get 3 bands recognised?

 

Brett

 

 

 

From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Richard 
McDonnell
Sent: Monday, 14 August 2017 10:16 PM
To: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] background transparency

 

Brett, 
Apologies, ive just realised your version of QGIS may not have the processing 
toolbox.
You may also do this by going to RASTER, Conversion and selecting Translate Its 
the very same tool just a different interface
Regards,

Richard

On 14/08/2017 15:04, Richard McDonnell wrote:

Hi Brett
You can indeed, just use the Processing toolbox, just type Translate into the 
search box and select the Translate Tool under GDAL.
The values you specified as transparent, can be specified under the Nodata Value
You can also do this as part of a batch if you have a number of files, you wish 
to do this for.

Hope this helps,

Richard.

On 14/08/2017 14:07, Brett Adams wrote:

Hi Folks,

 

I have a geotiff that contains a black ground in areas where there is no data.  
The black background is made transparent within QGIS via “Layer Properties – 
Transparency”

 

Can I export a new Geotiff with the black background removed?

 

I’m running 2.6.1 On Windows-7.Yes, I know it’s an old version but I’ve had 
no reason to update.  So far…

 

Thanks

 

Brett  Adams

Spinifex-GPX

0438 861 974

 






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-- 
Richard McDonnell
GIS Specialist PgD GIS AssocSCSI
OPW FRM Data Management
52 Stephens Green, Dublin 2.
TEL: 01 6476543

  



Email Disclaimer: http://www.opw.ie/en/disclaimer/ 




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-- 
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GIS Specialist PgD GIS AssocSCSI
OPW FRM Data Management
52 Stephens Green, Dublin 2.
TEL: 01 6476543

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[Qgis-user] QEP notification: Rework datum transform handling

2017-08-15 Thread Nyall Dawson 
Hi all,

Following on from discussion at the recent hackfest, please see QEP 100 at

https://github.com/qgis/QGIS-Enhancement-Proposals/issues/100

regarding proposed changes to datum transformation handling within
QGIS. Anyone with interest in how QGIS handles datum transforms
(including the looming introduction of temporal dependant datum
transforms, such as GDA 2020) should read and comment on the proposed
changes.

Timing is tight for this one - but at the same time it's a "3.0 or
never" type change!

Nyall
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