[UW-GIS-L] Transformation of WGS84 to UTM?

[Michalis Avraam]

Whenever I had to implement projection transformations, I went straight to
Proj.

Initially an MIT project I believe, it has matured into a stable, open
source product that allows transformations between almost any known
projection (they advertise about 100 or so). Their libraries are easy to
use, and they even have VB bindings.

See http://www.remotesensing.org:16080/proj/ for more information

Michalis

 

> -----Original Message-----
> From: uw-gis-l-bounces at mailman1.u.washington.edu 
> [mailto:uw-gis-l-bounces at mailman1.u.washington.edu] On Behalf 
> Of Kim Jhee
> Sent: Saturday, March 12, 2005 11:02 PM
> To: uw-gis-l at u.washington.edu
> Cc: jhee_king at hotmail.com
> Subject: [UW-GIS-L] Transformation of WGS84 to UTM?
> 
> Hi All,
> Currently we are working on making a prototpye demo of GIS 
> relative system. 
> The demo should provide the capability of convertion between 
> WGS84 and 
> UTM.So we are working to transform WGS84 coordinate to UTM 
> coordinate.We 
> tryed the Gauss Krueger Projection. But the results we got is 
> about >10m 
> error in northing and <5m error in easting compared to the 
> converter get 
> from net: http://franson.com/coordtrans/index.asp?ref=google
> 
> My questions are:
> 1. Is there any comparation of the algorithm or formula to 
> converting WGS84 
> to UTM? Is there any data to show some different formulas and their 
> relative error?
> 2. Could you recommand one formula/method to convert WGS84 to UTM and 
> result in small error?
> 
> You also can points me to one reading list or net resources. 
> 
> I think this shouldn' be a new question for this list or may 
> be too simple 
> question for this list. Anyway, any feedbacks and recommendations are 
> welcome and highly appreciated. Thanks a lot.
> 
> Best Regards,
> Jhee
> 
> 
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