GetProjectionBase - ObjectVision/GeoDMS GitHub Wiki

Unit functions GetProjectionBase

• GetProjectionBase(gridunit)

GetProjectionBase(gridunit) results in a reference for the gridunit towards the unit used for the coordinate system (e.g. meters for RD and degrees for LatLong).

• unit gridunit with Point value type of the group CanBeDomainUnit

5.44

unit<fpoint> rdc_meter: range = "[{300000, 0}, {625000, 280000})";
unit<spoint> rdc_100 :=
   range(
      gridset(
          rdc_meter
         ,point(  -100f,   100f), rdc_meter)
         ,point(625000f, 10000f), rdc_meter)
         ,'spoint'
      ), point(0s,0s), point(3250s, 2700s)
   );

unit<fpoint> projBase := GetProjectionBase(rdc_100);

result: The projBase unit will refer to the rdc_meter unit.

• GetProjectionOffset
• GetProjectionFactor