public class PortCalculator : AbstractLayoutStage, 
	ILayoutStage, ILayouter

Public Class PortCalculator _
	Inherits AbstractLayoutStage _
	Implements ILayoutStage, ILayouter

This class implements a LayoutStage that can be used to adjust the final port assignments after a layout has been calculated. This can be useful if the port assignment calculated by the layout algorithm is insufficient. This stage uses IDataProvider instances bound to the graph using the keys defined in the IIntersectionCalculator interface to calculate the new port offsets. For each edge in the LayoutGraph instance the DataProviders are queried for an implementation of the IIntersectionCalculator interface. If the result is non-nullNothingnullptra null reference (Nothing in Visual Basic), that implementation will be queried and if the result of the query is non-nullNothingnullptra null reference (Nothing in Visual Basic), the returned point will be applied to the edge layout.

For this layout stage to work use PrependStage(ILayoutStage) or PrependStage(ILayoutStage) to add this layout stage and register appropriate IDataProvider implementations to the graph using the keys defined in IIntersectionCalculator .

Note, that this class will not change the coordinates of a port if it is associated with a strong port constraint.

System..::..Object
  yWorks.yFiles.Layout..::..AbstractLayoutStage
    yWorks.yFiles.Layout..::..PortCalculator