DrawCombinedIntergroupEdge ( DrawingContext oDrawingContext, GraphDrawingContext oGraphDrawingContext, IntergroupEdgeInfo oCombinedIntergroupEdge, GroupLayoutDrawingInfo oGroupLayoutDrawingInfo ) { Debug.Assert(oDrawingContext != null); Debug.Assert(oGraphDrawingContext != null); Debug.Assert(oCombinedIntergroupEdge != null); Debug.Assert(oGroupLayoutDrawingInfo != null); AssertValid(); Rect oGroupRectangle1, oGroupRectangle2; if ( !TryGetGroupRectangle( oGroupLayoutDrawingInfo.GroupsToDraw[ oCombinedIntergroupEdge.Group1Index], out oGroupRectangle1) || !TryGetGroupRectangle( oGroupLayoutDrawingInfo.GroupsToDraw[ oCombinedIntergroupEdge.Group2Index], out oGroupRectangle2) ) { return; } Point oGroupRectangle1Center = WpfGraphicsUtil.GetRectCenter(oGroupRectangle1); Point oGroupRectangle2Center = WpfGraphicsUtil.GetRectCenter(oGroupRectangle2); Point oBezierControlPoint = GetBezierControlPoint(oGraphDrawingContext, oGroupRectangle1Center, oGroupRectangle2Center, CombinedIntergroupEdgeBezierDisplacementFactor ); PathGeometry oBezierCurve = WpfPathGeometryUtil.GetQuadraticBezierCurve(oGroupRectangle1Center, oGroupRectangle2Center, oBezierControlPoint); Color oColor = GetContrastingColor( oGraphDrawingContext, CombinedIntergroupEdgeAlpha, true); Pen oPen = CreateFrozenPen(CreateFrozenSolidColorBrush(oColor), GetCombinedIntergroupEdgePenWidth(oCombinedIntergroupEdge) * this.GraphScale, DashStyles.Solid, PenLineCap.Round); oDrawingContext.DrawGeometry(null, oPen, oBezierCurve); }