All Cadcorp SIS API Methods

TopoEdgeFill Method

Description

Creates a Named Seed object by following the current open Link item to make a closed loop.

Syntax

Public Function TopoEdgeFill( _
   ByVal seed As String, _
   ByVal bForwards As Integer, _
   ByVal filter As String _
) As Integer

Parameters

seed

The new Named Seed object, which will be a TopoPolygon item.

 

bForwards

True	Follow the current open Link item from the start node to the end node.
False	Follow the current open Link item from the end node to the start node.

 

filter

Optionally specifies a named Filter which all Link Items must pass to be considered as part of the TopoPolygon.

Return Type

True on success, False on failure.

Remarks

The Link following algorithm always turns left at a Node. Therefore this method will always return an anti-clockwise TopoPolygon. The exception to this is if the current Link item is an edge Link. In this case one value of bForwards will return a clockwise perimeter TopoPolygon, and the other will return an anti-clockwise TopoPolygon.

Available: GEO D OD SISpy

Group:

• Topology Methods 

Example

sis.TopoEdgeFill ("Stevenage", True, "CountyBoundary")