Coordinate transformation

[Andre Sarmento]

Does anyone know any method or software that can transform coordinates (projection) from polyconic to UTM for example?

I have a 2D seismic line in Polyconic Projection and would like to transform it in UTM Projection or vice versa.

Thank you all!

[Ashokaditya Dhurandhar]

http://download.cnet.com/UTM-Coordinate-Converter/3000-12940_4-75961066.html

Ashokaditya P. Dhurandhar,  QP (Major Minor, Atomic Minerals & Prescribed substances),  PE (Geotechnical Engineering)
cell: +919867218908
website: www.oriongeohytech.com

On Jul 18, 2016 08:36, "Ashokaditya Dhurandhar" <apdhur...@gmail.com> wrote:

http://www.synnatschke.de/geo-tools/coordinate-converter.php

Ashokaditya P. Dhurandhar,  QP (Major Minor, Atomic Minerals & Prescribed substances),  PE (Geotechnical Engineering)
cell: +919867218908
website: www.oriongeohytech.com

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[Ashokaditya Dhurandhar]

http://www.synnatschke.de/geo-tools/coordinate-converter.php

Ashokaditya P. Dhurandhar,  QP (Major Minor, Atomic Minerals & Prescribed substances),  PE (Geotechnical Engineering)
cell: +919867218908
website: www.oriongeohytech.com

On Jul 18, 2016 07:56, "Andre Sarmento" <narig...@gmail.com> wrote:

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[Wayne Mogg]

This online service http://cs2cs.mygeodata.eu/ might do the job. Otherwise I suggest you get Proj 4 which comes with a utility cs2cs for converting  coordinates points in text files.

Regards,

Wayne Mogg

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[Bob Nash]

Andre,

Geotrans from the National Geospatial Intelligence Agency is a free download that will allow bulk transformation and is easy to use

Bob

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[Julien Moreau]

I use GMT or the binding with python. Reading the coordinate in the SEG-Y then writing it in another bit or making a simple coordinate file. It is relatively easy if you know how to get your original coordinates out.
Be careful with some softwares transformations are approximations and some do not do the job properly. They generally document what is used if serious.
Have fun !
Julien Moreau

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[Farrukh Qayyum]

Hi all,

GDAL is a powerful library that most of the software pacakges use. You have two best FREE options:

1- Python

2- QGIS using shapefiles

For #1, here is a part of my python script:

# Coordinate Reference System (CRS)

# Find EPSG code of the coordinate systems that you are using.

# http://spatialreference.org/

import os
from osgeo import gdal
from osgeo import osr
from osgeo import ogr

SourceEPSG = 4326  
TargetEPSG = 2193

source = osr.SpatialReference()
source.ImportFromEPSG(SourceEPSG)

target = osr.SpatialReference()
target.ImportFromEPSG(TargetEPSG)

def CRSTransform(Lat, Long):
    transform = osr.CoordinateTransformation(source, target)
    point = ogr.CreateGeometryFromWkt("POINT ("+Long+" "+Lat+")")
    point.Transform(transform)
    print point.GetX(), "   ", point.GetY() # OR make a list array and write as a CSV file.

Kind regards, Farrukh

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[Matt Boyd]

I've done this before (but not in opendtect) by exporting the navigation to a text file. Loading that into qgis and reprojecting it there before exporting it back to text and into the seismic software. QGIS uses the open source projection libraries that do a pretty good job in my experience.

Matt

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[Salva.]

Definitilly geotrans:

http://earth-info.nga.mil/GandG/geotrans/index.html

Cheers

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[joseph.barraud]

Hi,

One more option if you are happy to try Python and GDAL: I have written a script that does exactly that...

See https://github.com/jobar8/segy2segy

Cheers,

Joseph

[nancy jain]

Hi everyone,

I'm a user of landmark s/w. Within that there is map projection module which easily does transformation.
As well as, within kingdom s/w one can easily transform it out.

Hope it helps you.

Nancy Jain
Geophysicist(S)
Ongc Ltd.

On Jul 18, 2016 07:56, "Andre Sarmento" <narig...@gmail.com> wrote:

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[Camilo]

Hi Andre

I agree entirely with Nancy about the easier utility of IHS and Landmark interpretation software. However, You can also use Quantum Gis that is freeware to keep up controlled your transformations, localizations and map presentations. But, if you prefer, you can also use ArcGis.

[Andre Sarmento]

I appreciate all the answers given, really. I could figured it out already. Thank you all!!