|
|
| GeoCommunity Mailing List |
| |
| Mailing List Archives |
| Subject: | GISList: projection, datum |
| Date: |
06/10/2002 07:58:39 AM |
| From: |
jayachandran mani |
|
|
Hi listers,
I have few doubts
about projections / datum.
1. What is the difference between projection and
DATUM.
I understand that projection(representation of
spherical surface in 2 dim plane) is for
horizontal reference and datum for vertical reference.
But I came thru some papers where it is mentioned that
horizontal reference as NAD83 datum and vertical
reference as Mean sea level.
Can you please explain me in detail. Any reference to
internet sites which may explain more also be helpful.
2. What will be the difference in horizontal
co-ordinates as the height changes.
Regards
Jay
__________________________________________________
Do You Yahoo!?
Yahoo! - Official partner of 2002 FIFA World Cup
http://fifaworldcup.yahoo.com
To unsubscribe, write to gislist-unsubscribe@geocomm.com
________________________________________________________________________
Setup a GeoCommunity Account and have access to FAST DataDownloads
and Premium Career Posting at a discounted rate!
https://www.geocomm.com/cgi-bin/accounts/login
On-line Archives available at
http://spatialnews.geocomm.com/community/lists/
|
|
Sponsored by:
For information
regarding
advertising rates
Click Here!
|
