[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Info-gama] Gama XML Input

From: Ales Cepek
Subject: [Info-gama] Gama XML Input
Date: Tue, 2 Mar 2004 19:54:08 +0100

... for some reason the following email from Jim got lost at info-gama
list so I am re-sending it.      Ales


From: Jim Sutherland <address@hidden>
To: address@hidden
Subject: GaMa XML Input
Date: Mon, 01 Mar 2004 21:35:49 -0800

Hi Ales:

Thank you for adding me to your mailing list.  I am most impressed
with your work on the GaMa project.  Here is a link to a project that
I am partly involved in.  We are re-engineering our legal survey plans
registry model to accept digital plan submissions.  Land XML has been
chosen as the standard survey data observation information exchange
format.  You may find it interesting to look at the quick overview of
the project to date.  We are finalizing phase 3 of defining the
detailed business and systems architecture.

As a personal home project I have done some research on using elevated
aerial panorama's (up to 25 feet above ground level) for deriving
directions like a low accuracy theodolite.  Several images are mapped
together to create an equirectangular map projection.  As the image is
conformal, I am able to point to image targets (usually not more than
60 metres away) to obtain directions from the image.  I just tape
distances to obtain scale.  I did some internet research and found
your wonderful GaMa program, created a 2D network and adjusted the
small local network.  I am amazed at your excellent documentation.  I
created the GaMa input file in a spreadsheet and ran the adjustment
the first time and discovered I had a couple of syntax errors.  I
re-ran the adjustment and was very pleased with your program results
and output file.  An excellent program.  The adjustment shows internal
angular precision of about eight minutes sexigesimal units.  The
derived directions were then compared to survey accurate measurements
which confirmed about an eight minute average accuracy for the derived

Jim Sutherland

reply via email to

[Prev in Thread] Current Thread [Next in Thread]