====== Belge 1972 / Belgian Lambert 72 and Ostend height ======

Orbit supports the Belge 1972 / Belgian Lambert 72 Gridcorrection as described by the NGI. Both xy grid and z height corrections are implemented. 

=== Related Coordinate Systems ===

**Projected CRS** 
  * 31370 : Belge 1972 / Belgian Lambert 72

**Vertical CRS** 
  * 5710 : Ostend height

=== Add CRS Defintion ===

To use this implementation as defined by the NGI : 
  * Download : {{:technologies:crs:projection_grid_31370.zip|}} and {{:technologies:crs:vertical_5710.zip|}}
  * Unzip and Copy to : <Orbit installation directory>/program/system/crs

=== More information ===

  * [[crs_orbit|]]
  * [[http://www.ngi.be/|]] (technical specifications about coordinate system)