This document is archived and information here might be outdated. Recommended version. |
Calculates the least-cost path(s) from selected points in the input data and returns it as a polyline.
[Visual Basic .NET] Public Function CostPathAsPolyline ( _ ByVal sourcePoints As IPointCollection, _ ByVal distance As IGeoDataset, _ ByVal backlink As IGeoDataset _ ) As IGeometryCollection
[C#] public IGeometryCollection CostPathAsPolyline ( IPointCollection sourcePoints, IGeoDataset distance, IGeoDataset backlink );
[C++]
HRESULT CostPathAsPolyline(
IPointCollection* sourcePoints,
IGeoDataset* distance,
IGeoDataset* backlink
);
[C++]
Parameters sourcePoints [in]
sourcePoints is a parameter of type IPointCollection* distance [in]
distance is a parameter of type IGeoDataset* backlink [in]
backlink is a parameter of type IGeoDataset*
sourcePoints |
input collection of points which identifies the destinations in which the least cost path is routed to |
distance |
the name of a cost distance Raster to be used to determine the least cost path from the fromRaster cell locations to a source. The distance Raster is usually created with the IDistanceOp::CostDistance method (or by the IDistanceOp::CostDistanceFull method). The distance Raster stores, for each cell, the minimum accumulative cost distance over a cost surface from each cell to a set of source cells. |
backlink |
the name of a cost back link Raster used to determine the path to return to a source via the least-cost path For each cell in the back link raster, a value identifies the neighbor that is the next cell on the least accumulative cost path from the cell to a single or set of source cells. |