Colombia Urban

New in version 7.2.

Classification

Miscellaneous

Available forms

Forward and inverse ellipsoidal projection

Alias

col_urban

Domain

2D

Input type

Geodetic coordinates

Output type

Projected coordinates

From [IOGP2018]:

The capital cites of each department in Colombia use an urban projection for large scale topographic mapping of the urban areas. It is based on a plane through the origin at an average height for the area, eliminating the need for corrections to engineering survey observations.

proj-string: +proj=col_urban

Parameters

+lon_0=<value>

Longitude of projection center.

Defaults to 0.0.

+lat_0=<value>

Latitude of projection center.

Defaults to 0.0.

+ellps=<value>

The name of a built-in ellipsoid definition.

See Ellipsoids for more information, or execute proj -le for a list of built-in ellipsoid names.

Defaults to “GRS80”.

+x_0=<value>

False easting.

Defaults to 0.0.

+y_0=<value>

False northing.

Defaults to 0.0.

+h_0=<value>

Projection plane origin height (in metre)

Defaults to 0.0.