[mapserver-dev] FW: [MapServer] #3519: map UNITS AUTO from PROJECTION units

Lime, Steve D (DNR) Steve.Lime at state.mn.us
Wed Aug 18 11:06:35 EDT 2010

Seems like a reasonable idea but also one that I would think has been discussed 
before. Thoughts?


-----Original Message-----
From: MapServer [mailto:trac at osgeo.org] 
Sent: Wednesday, August 18, 2010 4:41 AM
Subject: [MapServer] #3519: map UNITS AUTO from PROJECTION units

#3519: map UNITS AUTO from PROJECTION units
 Reporter:  regodon              |       Owner:  sdlime     
     Type:  enhancement          |      Status:  new        
 Priority:  normal               |   Milestone:             
Component:  MapServer C Library  |     Version:  unspecified
 Severity:  normal               |    Keywords:             
 I think that map UNITS should be initialized automatically depending on
 the PROJECTION used.

 Is there any sense in using a projection in meters (UTM) and setting map
 UNITS in degrees?

 Since a wms client can ask for a map in different projections, i think map
 UNITS should be automatically detected. Otherwise any layer with SIZEUNITS
 other than pixels is drawn wrongly when map units are different from
 projection units.

Ticket URL: <http://trac.osgeo.org/mapserver/ticket/3519>
MapServer <http://mapserver.org>

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