Add (union)

geometric-functions add (union)

syntax

  • add(polygon_data_itemA, polygon_data_itemB)
  • polygon_data_itemA + polygon_data_itemB

description

add(polygon_data_itemA, polygon_data_itemB) or polygon_data_itemA + polygon_data_itemB results in a new multi polygon data-item with the union of the two polygon_data_itemA and polygon_data_itemA data items.

applies to

data items polygon_data_itemA and polygon_data_itemA with an ipoint or spoint value-type.

conditions

  1. The composition type of the arguments needs to be polygon.
  2. The domain-unit of the arguments must match of be void.

since version

7.112

example 

parameter<ipoint> NorthHolland (poly) := Land/geometry + Texel/geometry;

see also