[mapguide-trac] #1156: MGRS Polar region grid/graticule lines incorrect

[MapGuide Open Source]

#1156: MGRS Polar region grid/graticule lines incorrect
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 Reporter:  NormOlsen        |         Owner:  NormOlsen
     Type:  defect           |        Status:  closed   
 Priority:  high             |     Milestone:           
Component:  General          |       Version:  2.0.2    
 Severity:  major            |    Resolution:  fixed    
 Keywords:  MGRS Grid Polar  |   External_id:  1273536  
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Changes (by NormOlsen):

  * status:  new => closed
  * resolution:  => fixed

Comment:

 Corrected by a submission which produced revision 4351.  The submission
 was substantial, and included two new code modules:

 CoordsysMgrsMajorRegion.h.
 CoordSysMgrsMajorRegion.cpp

 1> The generation of MGRS regions was originally accomplished by the 6x8
 graticule generator.  This was replaced by the two new objects referenced
 above.
 Thus, MGRS major region generation now accounts for the difference of Band
 X
 from other bands and also the rather strange stuff that goes on in the
 vicinity
 of Norway.

 2> Logic was added to the MGRS Zone object generator so that the provided
 frame
 boundary is tested to see if it includes either pole.  If so, the MGRS
 Zone
 object generator generates zones for the respective polar regions
 regardless of
 the latitudes of the bounding box.

 3> The boundary of the the polar regions as sent off to the MGRS Zone
 object was
 changed from rectangular to a representation of a complete parallel of
 latitude
 in the frame coordinate system (usually a circle).

 4> 100Km block designation code was added so that the 100Km grid in the
 polar regions is properly labeled.

 5> Problems in the clipper where the line being clipped passed exactly
 through a
 vertex in the clipping boundary were corrected.

-- 
Ticket URL: <http://trac.osgeo.org/mapguide/ticket/1156#comment:1>
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