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This method shows which center (node) is the nearest on a street network.


Internally it uses IsoCostMulti and shares the NL and Offset parameters with this method.


Output is a polyline theme and the polylines are dynamically segmented to show the exact position where it changes, which center is the nearest. Polylines are oriented so they point away from the center.


If you run this method in turnmode, certain smaller details next to actual turn restrictions may come out wrong.


Syntax: IsoLinkServiceArea(filename: string; GF: TGISformat; NL: TIntegerList; Offset: TCostArray)