Opened 14 years ago

Closed 13 years ago

#631 closed patch (fixed)

Update NZ projections for grid transformation support

Reported by: jpalmer Owned by: pramsey
Priority: medium Milestone: PostGIS 1.5.3
Component: postgis Version: master
Keywords: proj4, NZGD2000, NZGD49, grid Cc:

Description

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.

Attachments (1)

nzgd49_grid_srs.patch​ (69.5 KB ) - added by jpalmer 14 years ago.

Download all attachments as: .zip

Change History (3)

by jpalmer, 14 years ago

Attachment: nzgd49_grid_srs.patch​ added

comment:1 by robe, 13 years ago

Is there a reason we are not applying this patch. I'm tempted to before 1.5.3 release?

comment:2 by pramsey, 13 years ago

Resolution: → fixed
Status: new → closed

Patch in 1.5 at r7358 and trunk at r7359.

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