gridset

syntax

• gridset(baseunit, size, offset, valuetype)
  

definition

gridset(baseunit, size, offset, valuetype) defines a point domain unit with a projection to a coordinate system (e.g. Lat long or RD). The gridset function has the following arguments:

• the baseunit in which the coordinates of the coordinate system are expressed;
• the size of the grid in both X and Y directions, expressed in the base unit;
• the offset, the coordinates of the top left coordinate, expressed in the base unit;
• the value type of the resulting domain unit (in earlier versions the value type was configured as string, this will not be supported in the future).

applies to

The baseunit is a unit with value type:

• group: Point

The size is a parameter/constant with value type:

• group: Point

The offset is a parameter/constant with value type:

• group: Point

The resulting valuetype:

• group: Point

conditions

since version

5.15

example

unit<fpoint> rdc_m
:  Label = "rijksdriehoekmeting in meters",
,  Range = "[{300000, 0}, {625000, 280000})";
unit<spoint> rdc_100: expr = 
   "range("
      "gridset("
         " rdc_m"
         ",point(float32( - 100.0), float32(  100.0), rdc_m)"
         ",point(float32(625000.0), float32(10000.0), rdc_m)"
         ",spoint"
      ")"
      ", point(int16(   0), int16(   0))"
      ", point(int16(3250), int16(2700))"
   ")";