DNGS/Proj

Igual-área

Projeções nacionais:

• Albers Brasil: https://github.com/AddressForAll/pg_pubLib-v1/blob/main/src/pubLib05pgis-extraSRID.sql
• Albers EUA
• Albers Canadá
• ...

Projeções continentais:

• Albers Africa: https://epsg.io/102022
• Lambert cilindrica equatorial: a matematica mais simples https://wiki.addressforall.org/doc/DGGS/Proj/rHEALPix
• Europa: wikipedia:European grid adota wikipedia:Lambert azimuthal equal-area projection com centro em 52° N, 10° E.
• Glance... padrão continental da NASA para fotos de satélite.

Proposta Glance

Em 2018 o projeto measures-glance/glance-grids (inspirado no primeiro paper do Equi7 Equi7Grid) ... Usa wikipedia:Lambert_Azimuthal_Equal_Area

Ver template Python abaixo e resultado em https://github.com/measures-glance/glance-grids/blob/master/data/crs_wkt/GLANCE_GRIDS_V01_EU_CRS.wkt

PROJCS["BU MEaSUREs Lambert Azimuthal Equal Area - {continent} - {version}",
    GEOGCS["GCS_WGS_1984",
        DATUM["D_WGS_1984",
            SPHEROID["WGS_1984",6378137.0,298.257223563]],
        PRIMEM["Greenwich",0.0],
        UNIT["degree",0.0174532925199433]],
    PROJECTION["Lambert_Azimuthal_Equal_Area"],
    PARAMETER["false_easting",0.0],
    PARAMETER["false_northing",0.0],
    PARAMETER["longitude_of_center",{lon_of_center}],
    PARAMETER["latitude_of_center",{lat_of_center}],
    UNIT["meter",1.0]]

Quasi-igual-área

Nacional:

• UTM Colômbia: https://github.com/AddressForAll/pg_pubLib-v1/blob/main/src/pubLib05pgis-extraSRID.sql

Continental:

• Equi7 ver wikipedia:Azimuthal_Equidistant. Ver https://cartography.tuwien.ac.at/eurocarto/wp-content/uploads/2015/09/3_6_ppt.pdf e https://doi.org/10.1016/j.cageo.2014.07.005 . Ver https://github.com/TUW-GEO/Equi7Grid

See also

• DNGS/Poliedro das nações