Re: Pulkovo 1942(58) / Stereo70 projection

Dear Paul,

Thanks for your reply.

Really appreciate.

Best regards.

Dr. Pierre Bettinelli
Geophysics Associate Domain Champion

Schlumberger Oilfield Services
Base MD1, BP 76<x-apple-data-detectors://0>
30500 Hassi Messaoud<x-apple-data-detectors://0>
Wilaya de Ouargala
Algeria

Tel: +33 6 18 47 77 57<tel:+33%206%2018%2047%2077%2057>
Work: +213 770 99 0126<tel:+213%20770%2099%200126>

Le 17 mars 2014 à 22:12, "Paul Wessel" <[email protected]<mailto:[email protected]>> a écrit :

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]<mailto:[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]<mailto:[email protected]>

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From: Pierre Bettinelli
Sent: Monday, March 17, 2014 10:23 AM
To: '[email protected]<mailto:[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]<mailto:[email protected]>

P Please consider the environment before printing this email

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