Re: [Qgis-user] Helmert 7 param transformation

[Zoran Jankovic]

On Tue, Sep 14, 2010 at 5:50 PM, Jean-Claude Repetto  wrote:

> Le 14/09/2010 16:14, Zoran Jankovic a écrit :
>
>
>  Here is what I found (in case someone else will be looking for (free)
>> transformation software:
>> http://www.apsalin.com/online.aspx
>> 
>> http://www.fgg.uni-lj.si/~/mkuhar/Pouk/Utils.html (this
>> one is in Slovenian, but the Excel files are in English themselves, only
>> the file names are in Slovenian).
>>
>
> Sorry, but it seems that these applications are not related to your
> question, or did I miss something ?
>

No, you are right, these are not (directly) related to the original
question. The one application that _does_ compute 7 parameters is SEVENPAR
(Killetsoft), but it's commercial, and demo version rounds off on 1st
decimal... :-(

Sorry, I've been working on 10 things at once, I sent my previous email
before I finished it properly :-(.

Br,

Zoran
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Re: [Qgis-user] Helmert 7 param transformation

[Jean-Claude Repetto]

Le 14/09/2010 16:14, Zoran Jankovic a écrit :


Here is what I found (in case someone else will be looking for (free)
transformation software:
http://www.apsalin.com/online.aspx
http://www.fgg.uni-lj.si/~/mkuhar/Pouk/Utils.html
 (this
one is in Slovenian, but the Excel files are in English themselves, only
the file names are in Slovenian).


Sorry, but it seems that these applications are not related to your 
question, or did I miss something ?

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Re: [Qgis-user] gdal_merge - GDAL Tools plugin Qgis error message

[sergio sevillano]

El 14/09/2010, a las 17:13, William Kyngesburye escribió:

> On Sep 14, 2010, at 9:55 AM, sergio sevillano wrote:
> 
>> El 14/09/2010, a las 14:52, William Kyngesburye escribió:
>> 
>>> Are you using the standalone Qgis?
>>> 
>> 
>> i have installed frameworks and qgis manually from
>> http://www.kyngchaos.com/software/qgis
>> but not sure if its standalone or not 
>> is there a way i can check?
> 
> Only by size (Get Info): standalone is about 290+MB installed, standard is 
> about 214MB.

my qgis.app is 214Mb, so is standard too

> 
>>> What other GDAL tools have you used that work, besides gdal_contour?  
>>> gdal_merge itself is a python program, while gdal_contour is a binary.  It 
>>> seems that an external python script is having problems finding python
>>> 
>> 
>> other .py won´t work either
>> 
> 
> I get this also.  I'm using the standard Qgis.
> 
> My guess is that external python scripts aren't getting a shell environment 
> so they can't find python, even though Qgis extensions run thru python.  
> Those GDAL python scripts all have the standard shebang:
> 
> #!/usr/bin/env python
> 
> Someone with a better understanding of this needs to comment so I can try to 
> figure out why the Mac build is not working (while from lack of reported 
> problems it seems other systems work).

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Re: [Qgis-user] gdal_merge - GDAL Tools plugin Qgis error message

[William Kyngesburye]

On Sep 14, 2010, at 9:55 AM, sergio sevillano wrote:

> El 14/09/2010, a las 14:52, William Kyngesburye escribió:
> 
>> Are you using the standalone Qgis?
>> 
> 
> i have installed frameworks and qgis manually from
> http://www.kyngchaos.com/software/qgis
> but not sure if its standalone or not 
> is there a way i can check?

Only by size (Get Info): standalone is about 290+MB installed, standard is 
about 214MB.

>> What other GDAL tools have you used that work, besides gdal_contour?  
>> gdal_merge itself is a python program, while gdal_contour is a binary.  It 
>> seems that an external python script is having problems finding python
>> 
> 
> other .py won´t work either
> 

I get this also.  I'm using the standard Qgis.

My guess is that external python scripts aren't getting a shell environment so 
they can't find python, even though Qgis extensions run thru python.  Those 
GDAL python scripts all have the standard shebang:

#!/usr/bin/env python

Someone with a better understanding of this needs to comment so I can try to 
figure out why the Mac build is not working (while from lack of reported 
problems it seems other systems work).

> 
>> On Sep 14, 2010, at 5:59 AM, sergio sevillano wrote:
>> 
>>> hi
>>> 
>>> i get an 
>>> 
>>> "env: python: No such file or directory"
>>> 
>>> error when i try to use GDAL Tools plugin to merge some .hgt images
>>> seems to me as a path thing
>>> but other gdal plugins work fine 
>>> as gdal_contours
>>> 
>>> any hint or place to look further?
>>> thanks
>>> 
>>> 
>>> sergio
>>> 

-
William Kyngesburye 
http://www.kyngchaos.com/

"History is an illusion caused by the passage of time, and time is an illusion 
caused by the passage of history."

- Hitchhiker's Guide to the Galaxy


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Re: [Qgis-user] gdal_merge - GDAL Tools plugin Qgis error message

[sergio sevillano]

El 14/09/2010, a las 14:52, William Kyngesburye escribió:

> Are you using the standalone Qgis?
> 

i have installed frameworks and qgis manually from
http://www.kyngchaos.com/software/qgis
but not sure if its standalone or not 
is there a way i can check?

> What other GDAL tools have you used that work, besides gdal_contour?  
> gdal_merge itself is a python program, while gdal_contour is a binary.  It 
> seems that an external python script is having problems finding python
> 

other .py won´t work either


> On Sep 14, 2010, at 5:59 AM, sergio sevillano wrote:
> 
>> hi
>> 
>> i get an 
>> 
>> "env: python: No such file or directory"
>> 
>> error when i try to use GDAL Tools plugin to merge some .hgt images
>> seems to me as a path thing
>> but other gdal plugins work fine 
>> as gdal_contours
>> 
>> any hint or place to look further?
>> thanks
>> 
>> 
>> sergio
>> 
>> 
>> intel mac 3.33GHz core 2 duo - 8Mb ram
>> OSX 10.6.4 
>> Qgis 1.5.0 "Tethys"
>> GDAL Tools 1.2.0 (using GDAL v. 1.7.2)
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/qgis-user
> 
> -
> William Kyngesburye 
> http://www.kyngchaos.com/
> 
> [Trillian]  What are you supposed to do WITH a maniacally depressed robot?
> 
> [Marvin]  You think you have problems?  What are you supposed to do if you 
> ARE a maniacally depressed robot?  No, don't try and answer, I'm 50,000 times 
> more intelligent than you and even I don't know the answer...
> 
> - HitchHiker's Guide to the Galaxy
> 
> 

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Re: [Qgis-user] Helmert 7 param transformation

[Zoran Jankovic]

Hi guys,

Thanks for all the help! I found some really useful apps via the links you
all sent.

On a side note, I was aware that Helmerts transformation is very well
documented, just am little pressed for time right now to develop an Excel
sheet on my own (my exam is on Thursday :-) ).

Here is what I found (in case someone else will be looking for (free)
transformation software:
http://www.apsalin.com/online.aspx

http://www.fgg.uni-lj.si/~/mkuhar/Pouk/Utils.html (this one is in Slovenian,
but the Excel files are in English themselves, only the file names are in
Slovenian).

Best regards,
---
Zoran Jankovic
ZIS-Izrada softvera i savjetovanje / ZIS - Software Development and
Consulting

http://www.zisis.hr

M: 00 385 98 682 902
T:  00 385 44 683 374

A. Senoe 4
44320 Kutina
Croatia


On Tue, Sep 14, 2010 at 2:28 PM, Gerry Creager wrote:

> I sent this to ZOran directly, but for others who might be interested, this
> site has a lot of useful geodesy tools:  http://www.ngs.noaa.gov/TOOLS/
>
> I've been a happy user for years.
>
> gerry
>
>
> Zoran Jankovic wrote:
>
>> Hi guys and girls,
>> I sent this message once before, but I do not think it got through, so I'm
>> reposting.
>>
>> I know this is slightly off topic, but I ran out of places to ask... I'm
>> looking for a piece of software, it could be a standalone app, or some
>> JavaScript somewhere, that can calculate the 7 parameters of Helmerts
>> transformation from the coordinates of identical points. Lots of
>> applications can transform CRS, even on the fly, but I need something to
>> calculate the parameters...
>>
>> The thing is I'm preparing for an exam, this is like a bar exam so I can
>> get to be a certified surveying engineer, and one of the questions is to
>> calculate the params. A decade ago, when I was a student, I had the formulas
>> in a Sharp programmable calculator (that I borrowed :-)). Alas, both the
>> knowledge, as well as the programmable calculator got lost somewhere over
>> the years :-)
>>
> --
> Gerry Creager -- gerry.crea...@tamu.edu
> Texas Mesonet -- AATLT, Texas A&M University
> Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
> Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
>
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Re: [Qgis-user] gdal_merge - GDAL Tools plugin Qgis error message

[William Kyngesburye]

Are you using the standalone Qgis?

What other GDAL tools have you used that work, besides gdal_contour?  
gdal_merge itself is a python program, while gdal_contour is a binary.  It 
seems that an external python script is having problems finding python

On Sep 14, 2010, at 5:59 AM, sergio sevillano wrote:

> hi
> 
> i get an 
> 
> "env: python: No such file or directory"
> 
> error when i try to use GDAL Tools plugin to merge some .hgt images
> seems to me as a path thing
> but other gdal plugins work fine 
> as gdal_contours
> 
> any hint or place to look further?
> thanks
> 
> 
> sergio
> 
> 
> intel mac 3.33GHz core 2 duo - 8Mb ram
> OSX 10.6.4 
> Qgis 1.5.0 "Tethys"
> GDAL Tools 1.2.0 (using GDAL v. 1.7.2)
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user

-
William Kyngesburye 
http://www.kyngchaos.com/

[Trillian]  What are you supposed to do WITH a maniacally depressed robot?

[Marvin]  You think you have problems?  What are you supposed to do if you ARE 
a maniacally depressed robot?  No, don't try and answer, I'm 50,000 times more 
intelligent than you and even I don't know the answer...

- HitchHiker's Guide to the Galaxy


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[Qgis-user] Connecting to postgresql

[Eugenio Trumpy]

Hi to all,
with the new qgis version 1.6.0 compiled from svn vs.14222
on my debian squeeze i get this error when i connect to 
postgresql database:
Connesso al database con successo, ma non è possibile accedere ad alcuna 
tabella.

Messaggio di errore restituito dal database
ERROR:  cannot cast type regtype to text
RIGA 1: ...pg_class.oid and (pg_attribute.atttypid::regtype::text IN ('...
 ^

so if i click ok on the message box i'm able to see only the common geographic 
layers,
but not the view layers.

I try also with an older qgis version 1.4.0 and it works fine.

How can i solve the problem?
Thanks

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Re: [Qgis-user] Helmert 7 param transformation

[Gerry Creager]

I sent this to ZOran directly, but for others who might be interested, 
this site has a lot of useful geodesy tools:  http://www.ngs.noaa.gov/TOOLS/


I've been a happy user for years.

gerry

Zoran Jankovic wrote:

Hi guys and girls,
I sent this message once before, but I do not think it got through, so 
I'm reposting.


I know this is slightly off topic, but I ran out of places to ask... I'm 
looking for a piece of software, it could be a standalone app, or some 
JavaScript somewhere, that can calculate the 7 parameters of Helmerts 
transformation from the coordinates of identical points. Lots of 
applications can transform CRS, even on the fly, but I need something to 
calculate the parameters...


The thing is I'm preparing for an exam, this is like a bar exam so I can 
get to be a certified surveying engineer, and one of the questions is to 
calculate the params. A decade ago, when I was a student, I had the 
formulas in a Sharp programmable calculator (that I borrowed :-)). Alas, 
both the knowledge, as well as the programmable calculator got 
lost somewhere over the years :-)

--
Gerry Creager -- gerry.crea...@tamu.edu
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
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[Qgis-user] gdal_merge - GDAL Tools plugin Qgis error message

[sergio sevillano]

hi

i get an 

"env: python: No such file or directory"

error when i try to use GDAL Tools plugin to merge some .hgt images
seems to me as a path thing
but other gdal plugins work fine 
as gdal_contours

any hint or place to look further?
thanks


sergio


intel mac 3.33GHz core 2 duo - 8Mb ram
OSX 10.6.4 
Qgis 1.5.0 "Tethys"
GDAL Tools 1.2.0 (using GDAL v. 1.7.2)
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[Qgis-user] gdal_merge GDAL Tools plugin Qgis error message

[sergio sevillano]

hi

i get an 

"env: python: No such file or directory"

error when i try to use GDAL Tools plugin to merge some .hgt images
seems to me as a path thing
but other gdal plugins work fine 
as gdal_contours

any hint or place to look further?
thanks


sergio


intel mac 3.33GHz core 2 duo - 8Mb ram
OSX 10.6.4 
Qgis 1.5.0 "Tethys"
GDAL Tools 1.2.0 (using GDAL v. 1.7.2)
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[Qgis-user] Show selected records only

[Agustin Lobo]

Is there any way to apply the "Show selected records only" feature
not only to the table but to the geographic display as well? I.e, given
a vector layer of manypolygons, selecting one in the table and clicking
"Show selected records only" would display that polygon only.
Perhaps using an spatialite object?

Agus
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Re: [Qgis-user] Helmert 7 param transformation

[Jean-Claude Repetto]

Le 13/09/2010 18:50, Zoran Jankovic a écrit :


I know this is slightly off topic, but I ran out of places to ask... I'm
looking for a piece of software, it could be a standalone app, or some
JavaScript somewhere, that can calculate the 7 parameters of Helmerts
transformation from the coordinates of identical points. Lots of
applications can transform CRS, even on the fly, but I need something to
calculate the parameters...


Hello,

Firstly, you can read :


If it is not enough, you can also read
G. Timár, and C.J. Mugnier, GIS Integration of the 1:75,000 Romanian 
Topographic Map Series from the World War I, Geophysical Research 
Abstracts, Vol. 11, EGU2009-1-3, 2009.

http://www.akademiai.com/content/h0x7u3555r462483/

Jean-Claude

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