'宣言 Public Shared Function IsPointNearPolylineSegment( _ ByVal targetPoint As Point, _ ByVal currStart As Point, _ ByVal currSegment As PolyLineSegment, _ ByVal closeness As Double _ ) As Tuple(Of Boolean,Point)
public static Tuple<bool,Point> IsPointNearPolylineSegment( Point targetPoint, Point currStart, PolyLineSegment currSegment, double closeness )