[postgis-devel] [PostGIS] #631: Update NZ projections for grid transformation support
PostGIS
trac at osgeo.org
Tue Oct 19 17:39:11 PDT 2010
#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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