Incorrect Projections for Portugal

Description

The following CRS (on uDig projections database) do not have the necessary TOWGS84 parameters:

Lisbon (Lisbon) (4803) - TOWGS84[-304.046,-60.576,103.64,0,0,0,0],AUTHORITY["EPSG","6803"]

Lisbon (Lisbon) (deg) = Lisbon (Lisbon) (4803)

Lisbon (Lisbon) / Portuguese Grid (20791) - TOWGS84[-304.046,-60.576,103.64,0,0,0,0],AUTHORITY["EPSG","6803"]

Lisbon (Lisbon) / Portuguese National Grid (20190) - TOWGS84[-304.046,-60.576,103.64,0,0,0,0],AUTHORITY["EPSG","6803"]

This cause a displacement of 200-300 meters in Portugal mainland.

It is also necessary to provide the equivalence between the following ESRI projections:

ESRI:102164: "Lisboa Hayford Gauss IGeoE" is equivalent to EPSG:20790

ESRI:102165: "Lisboa Hayford Gauss IPCC" is equivalent to EPSG:20791

ESRI:104106: "GCS Datum Lisboa Hayford" is equivalent to EPSG:4207

ESRI:102161: "Datum 73 Hayford Gauss IPCC" is equivalent to EPSG:27493

ESRI: "GCS_Datum_73" is equivalent to EPSG:4274: Datum 73

Please refer to: http://epsg.io/

Warning: DO NOT use http://spatialreference.org

Please find attached samples of Portuguese projections.

Regards
Antonio

Environment

None

Assignee

Unassigned

Reporter

ANTONIO SOBRAL ALMEIDA

Components

Affects versions

Priority

High
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