[postgis-devel] [PostGIS] #631: Update NZ projections for grid transformation support

[PostGIS]

#631: Update NZ projections for grid transformation support
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 Reporter:  jpalmer                        |       Owner:  pramsey      
     Type:  patch                          |      Status:  new          
 Priority:  medium                         |   Milestone:  PostGIS 1.5.3
Component:  postgis                        |     Version:  trunk        
 Keywords:  proj4, NZGD2000, NZGD49, grid  |  
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 This patch modifies the spatial_ref_sys table proj4 parameters so the
 NZGD49<->NZGD2000 transformation grid is used. Also in the case when the
 grid is not found the lower accuracy 7 parameter transformation is used.

 See  http://www.linz.govt.nz/geodetic/conversion-coordinates/geodetic-
 datum-conversion/nzgd1949-nzgd2000/index.aspx for more information on the
 NZ transformations.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/631>
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