vibeproj.projections.lambert_azimuthal_equal_area¶
Lambert Azimuthal Equal Area (LAEA) projection.
Equal-area azimuthal projection. The EU standard for statistical mapping (EPSG:3035). Also used for MODIS polar products.
Math from PROJ laea.c and Snyder, “Map Projections: A Working Manual”.
Classes¶
Equal-area azimuthal projection for continental and polar mapping. |
Module Contents¶
- class vibeproj.projections.lambert_azimuthal_equal_area.LambertAzimuthalEqualArea¶
Bases:
vibeproj.projections.base.ProjectionEqual-area azimuthal projection for continental and polar mapping.
- name = 'laea'¶
- setup(params: vibeproj.crs.ProjectionParams) dict¶
Compute derived parameters from projection params.
Called once at construction time. Returns a dict of computed params that will be passed to forward/inverse.
- forward(lam, phi, params, computed, xp)¶
Forward projection: geographic (lon, lat in radians) -> projected (x, y in meters).
lam: longitude relative to central meridian (radians), array phi: latitude (radians), array Returns (x, y) in projection-native units (before false easting/northing and scale).
- inverse(x, y, params, computed, xp)¶
Inverse projection: projected (x, y) -> geographic (lon, lat in radians).
x, y: projection-native units (after removing false easting/northing and scale). Returns (lam, phi) in radians, with lam relative to central meridian.