All Cadcorp SIS API Methods

TopoCreateBoolean Method

Description

Creates a Named Seed object by doing a fast Boolean operation with existing TopoPolygon Items.

Syntax

Visual Basic
Public Function TopoCreateBoolean( _
   ByVal seed As String, _
   ByVal list As String, _
   ByVal boolop As Integer _
) As Integer

Parameters

seed
The new Named Seed object, which will be a TopoPolygon item.
 
list
A Named List containing the TopoPolygon Items, which must all be in the same dataset, to combine.
 
boolop
SIS_BOOLEAN_AND Get the overlap Named Seed between the TopoPolygon Items in list.
SIS_BOOLEAN_OR  Merge the TopoPolygon Items in list into a single Named Seed object.
SIS_BOOLEAN_XOR Form the Named Seed made up of alternate overlapping sub-areas of the TopoPolygon Items in list.
SIS_BOOLEAN_DIFF Take bites out of the dominant TopoPolygon in list using the other TopoPolygon Items in list.

Remarks

Available: GEO D OD SISpy

Group:

Example

sis.TopoCreateBoolean ("County", "PolysFound", SIS_BOOLEAN_DIFF)