[mapserver-users] Projection question - Australia

[Lyndon Zimmermann]

Marie,

I would say that the AMG Zone 55 you refer to is equivalent to UTM Zone
55, so the various desktop packages should provide that translation. 
ArcView and ArcTOOLBOX do.  There are other point by point conversion
tools around.  Note the new GDA94 is close enough to WGS84 with a
vertical translation.

Lyndon Z


> Marie Flanagan wrote:
> 
> Hi all,
> 
> I have a question about projection.  My map data of the NSW area of
> Australia uses WGS84 datum and spheroid.  Units are in geographic
> Digital Degrees.  This looks fine when displayed in mapserver.
> 
> I also have a flat file of x,y co-ordinates from the AMG zone 55 which
> I want to overlay on the map.  I have managed to figure out how to
> generate a shape file for this.  But I am now left with the question
> of how to convert from AMG cartesian co-ords to WGS longitude and
> latitude.  I think it may be possible to convert these using
> PROJ4 before I create the shape file, but I am not sure if it's
> possible to convert from AMG to WGS.
> 
> I will continue to search for PROJ4 examples to see if this is
> possible but in the meantime if anyone could advise I would be most
> grateful.  I am not a cartographer so excuse any obvious ignorance in
> the wording of my question!
> 
> Regards,
> 
> Marie

-- 
Lyndon Zimmermann
BE (Mech Adelaide) Grad Dip Bus Admin (UniSA)

LOW RAINFALL AGROFORESTRY RESEARCH UNIT
PhD Researcher
CRC for Plant-Based Management of Dryland Salinity

University of Adelaide Department of Agronomy and Farming Systems
Physical address: Hannaford Building (via Gate 3) Waite Campus, South
Australia
Postal: Adelaide University, PMB1 Glen Osmond, SA 5064, Australia
Dir (Soil and Water) +61-8-8303 6571 Mob 0414 91 4577
Fax +61-8-8303 6717 email lyndon.zimmermann at adelaide.edu.au

Unless otherwise stated, the content of this message and attachments may
be forwarded or quoted, with due acknowledgement.  No representation is
made that this email is free of viruses. Virus scanning is recommended
and is the responsibility of the recipient.