Alignment of NAD27 data with WGS84 base map data

Description

Lets turn back the clock to a NAD27/EPSG:4267 data set:

When this data is published via GeoServer and displayed in an WGS84/EPSG:4326 map the results do not quite line up (see attached screen snaps).

We expect this will require both:

  • an ellipse shift between clark66 and a wgs84

  • and a datum shift between NAD27 and NAD83

We assume one of the systems is going through NAD27 → NAD83 and doing a small small transform to WGS84, while we assume the other system is just doing the ellipse shift.

Environment

GeoServer 2.9.x (configured with user_projections with conus.los and conus.las grid-shift files )

Activity

Show:
Andrea Aime
July 9, 2016, 11:45 AM

Shall we close as won't fix, or maybe create a request for enhancement? The work to have more dynamic choice of transformation paths is not going to be trivial, especially in terms of making it perform in an acceptable way

Jody Garnett
July 9, 2016, 3:51 PM

It has been addressed with a documentation fix for now (an additional
example).
On Sat, Jul 9, 2016 at 4:46 AM Andrea Aime [Administrator] (JIRA) <



Jody Garnett

Jody Garnett
October 27, 2016, 10:14 PM

If we are content with the documentation fix this can be closed, if you want to consider the approach with loading them all up and choosing the "best" we can leave it open.

Andrea Aime
October 28, 2016, 12:49 PM
Andrea Aime
February 15, 2017, 11:46 AM

Mass closing all resolved issues not modified in the last 4 weeks

Won't Fix

Assignee

Unassigned

Reporter

Jody Garnett

Triage

Fix versions

None

Affects versions

Components

Priority

High
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