TopoCombineNamedSeeds Method
Description
Creates a Named Seed object by using a Boolean operation on an existing Named Seed Object.
Syntax
Visual Basic |
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Public Function TopoCombineNamedSeeds( _ ByVal seedOutput As String, _ ByVal seed1 As String, _ ByVal seed2 As String, _ ByVal boolop As Integer _ ) As Integer |
Parameters
- seedOutput
- The new Named Seed object, which will be a TopoPolygon item.
- seed1
- The Named Seed object, which must be a TopoPolygon Item in the same dataset, to combine.
- seed2
- The Named Seed object, which must be a TopoPolygon Item in the same dataset, to combine.
- boolop
-
SIS_BOOLEAN_AND
Get the overlap Named Seed between the Named Seeds seed1 and seed2. SIS_BOOLEAN_OR
Merge the Named Seeds seed1 and seed2 into a single Named Seed object. SIS_BOOLEAN_XOR
Form the Named Seed made up of alternate overlapping sub-Named Seeds of the Named Seeds seed1 and seed2. SIS_BOOLEAN_DIFF
Take bites out of seed1 using seed2. SIS_REVERSE
Reverse seed1 (seed2 must be an empty string). SIS_FORCE_POSITIVE
Reverse seed1 if it has a negative area (seed2 must be an empty string).
Remarks
Available: GEO MD OD SISpy
Group:
Example
sis.TopoCombineNamedSeeds ("County", "District1", "District2", SIS_BOOLEAN_OR)
Displays the named seed County. To display the newly created named seed County as a polygon, use the TopoCreatePolygon method.