[Chameleon-dev] [Bug 149] [Chameleon] Reprojecting Without also changing the Full Extent.

[bugzilla-daemon@www.maptools.org]

http://www.maptools.org/bugzilla/show_bug.cgi?id=149

pspencer@dmsolutions.ca changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID



------- Additional Comments From pspencer@dmsolutions.ca  2004-04-07 11:36 -------
This is actually not a bug, it is a conscious decision we made during CWC2
development.  There are essentially two ways of handling reprojection and each
has benefits and drawbacks:

1. reproject bounding box.  This ensures that the entire visible area in one
projection will also be visible in the new projection (pro) but often results in
a smaller scale (larger scale number) and repeated changing between two
projections means that you are effectively zooming out (con).

2. reproject centerpoint and preserve scale.  This ensures that switching
between projections does not zoom out because ground scale is maintained, but it
does not guarantee that you are going to see the same information when you
switch projections (as in the case noted here).

Neither one is right nor wrong.  Both are equally valid.  We (the developers)
have chosen option 2 which is, I admit, contrary to previous implementations in
other software we have developed.  But I am not going to change it unless there
is a compeling reason to do so.



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