[fusion-trac] #310: Flexible weblayout unit doesn't consistent with its map.

[Fusion]

#310: Flexible weblayout unit doesn't consistent with its map.
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 Reporter:  liuar     |         Owner:  madair 
     Type:  defect    |        Status:  closed 
 Priority:  P1        |     Milestone:  2.0    
Component:  MapGuide  |       Version:  1.1.1  
 Severity:  Major     |    Resolution:  fixed  
 Keywords:            |   External_id:  1267676
    State:  New       |       Browser:  All    
       Os:  All       |  
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Comment (by chrisclaydon):

 Recent changes to the MapGuide code improve the number of MG coordinate
 systems that can be used in the map that will result in an EPSG code being
 returned. However, not all systems will return a code, and some don't even
 have a corresponding code. In such cases, using a default LL/WGS84 system
 (as is currently the case) is not appropriate since it may be wildly
 different from the actual system, and may use different units, resulting
 in scale calculation problems.

 This can be resolved by setting the projection code in MapGuide.js to a
 special value, "UNKNOWN" and then bypassing coordinate system
 initialization in OpenLayers.Projection for this code. This essentially
 makes everything behave as it did before Proj4js.js was linked in to the
 project.

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Ticket URL: <http://trac.osgeo.org/fusion/ticket/310#comment:5>
Fusion <http://trac.osgeo.org/fusion>
Fusion is a web-mapping application development framework for MapServer and MapGuide OS.