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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | GISList: coordinate systems |
| Date: |
06/10/2002 07:58:40 AM |
| From: |
MARWA ABOU EL HASSAN |
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Dear listers,
I had previously known that the difference between Geographic and Projected
coordinate Systems in GIS software is relevant to the criteria of division,
measurement, etc..(although not sharply descriped), but recently i
recognized that a dataset belonging to a Projected coordinate Systems "UTM"
apears in the same postion of that of a Geographic coordinate system.
I need to know how the same dataset belonging to a certain type
projection (UTM for example) can be displayed in 2 different locations
because i've changed the grid size.
Is there a known criteria for setting a grid size?
What is the grid size relevant to?
In manually projection definition, why do the software accept wrong
parameters,
How can I fit 2 datasets in the same coordinate system but was given
different parameters without doing TRANSFORM.
Thanks for your time & Best Regards,
Marwa
GIS SpecialistProject Manager
GeoStrategies
Egypt
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