Re: Pulkovo 1942(58) / Stereo70 projection

Sorry, GMT does not offer a full Bursa-Wolf conversion so the closest I can get is with

echo 25.880820321489765 45.05027829579826 | mapproject -Js25/46/1:1 -F -C500000/500000 -R23/26/44/47 --PROJ_SCALE_FACTOR=0.99975 --PROJ_ELLIPSOID=Krassovsky
569373.145971	394850.348433	

As you can tell we are ~5 meter off.

You may need to use proj4 for this job.
-p

On Mar 17, 2014, at 12:58 AM, Pierre Bettinelli <[email protected]> wrote:

> Dear Gurus,
>  
> I tried many ways, but I’m stuck.
>  
> Please find below the parameters I would like to use. I found that this projection use Krassowsky 1940 Ellipsoid, but it did not work in my case.
>  
> Test point:
>  
> Lat long: 45.05027829579826,25.880820321489765 
> X,Y (Pulkovo 1942(58) / Stereo70 projection): X: 569377 Y: 394846    
>  
> Parameters:
>  
> <image001.png>
>  
> Thanks in advance for your useful help.
>  
> Really appreciate.
>  
> Best regards,
>  
> Pierre Bettinelli (PhD)
> Geophysics Associate Domain Champion
> North Africa Geomarket
>  
> Services Pétroliers Schlumberger
> Base MD1, BP 76
> 30500 Hassi Messaoud
> Wilaya de Ouargala – Algérie
>  
> Tel.         : +213 (0) 29 73 75 50/53 Ext. 71114
> Fax         : +213 (0) 29 73 70 45
> Mobile   : +213 (0) 770 99 0126 (ALG) / +33 (0) 6 18 47 77 57 (FR)
> E-mail    : [email protected]
>  
> P Please consider the environment before printing this email
>  
> From: Pierre Bettinelli 
> Sent: Monday, March 17, 2014 10:23 AM
> To: '[email protected]'
> Cc: Abdonabi Arianfar
> Subject: Pulkovo 1942(58) / Stereo70 projection
>  
> Dear gurus,
>  
> I would like to project using mapproject a X,Y,Z file (25000 pts) from Geographic to UTM coordinates (Pulkovo 1942(58) / Stereo70).
>  
> Unfortunately, the gmtset ELLIPSOID do not take into account this projection.
>  
> Do you have any idea on how to set my own projection?
>  
> Thanks in advance for your help.
>  
> Best regards,
>  
> Pierre Bettinelli (PhD)
> Geophysics Associate Domain Champion
> North Africa Geomarket
>  
> Services Pétroliers Schlumberger
> Base MD1, BP 76
> 30500 Hassi Messaoud
> Wilaya de Ouargala – Algérie
>  
> Tel.         : +213 (0) 29 73 75 50/53 Ext. 71114
> Fax         : +213 (0) 29 73 70 45
> Mobile   : +213 (0) 770 99 0126 (ALG) / +33 (0) 6 18 47 77 57 (FR)
> E-mail    : [email protected]
>  
> P Please consider the environment before printing this email
>  
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