[mapguide-users] Geometry/Geography/Projections - how it works?

[miansi]

Hello All,

I have database full of geometry data with no projection (SRID 0). Works
fine as is... But now I want to show that data on top of google maps or
virtual earth or whatever.

As far as I understand I need to apply projection to my datasource in order
to combine my data with google.

How it works?

1. Does it really matter what datatype to store in the database - geometry
or geography? I am able to store both in the dastabase.
2. Do I need to apply projection to the dataconnection and map? Right now I
do not, but according to
http://trac.osgeo.org/fusion/wiki/MapGuideCommercialOverlays - I need to
apply projection to the map.
3. Does viewer matters? I can use Fusion or AJAX.


Actually, I want to beef up question 2.

Let's say I have map and few layers. Every layer present information from
separate distinct dataconnection (Shape file, database, SDF, WFS, ...)

What is the guideline to follow to make sure that features will be presented
undistorted?



Thank you,

Andrei
-- 
View this message in context: http://osgeo-org.1803224.n2.nabble.com/Geometry-Geography-Projections-how-it-works-tp5214046p5214046.html
Sent from the MapGuide Users mailing list archive at Nabble.com.