//===================================================================== // CalculatePolylineToPointDistance (XYPolyline polyLine, XYPoint point) : double //===================================================================== /// <summary> /// Finds the shortest distance between any line segment of the polyline /// and the point. /// </summary> /// <param name="polyLine">PolyLine.</param> /// <param name="point">Point</param> /// <returns> /// <p>Length of the shortest path between the polyline and the point.</p> /// </returns> public static double CalculatePolylineToPointDistance(XYPolyline polyLine, XYPoint point) { double dist = 0; int i = 0; while (i < polyLine.Points.Count - 1) { if (i == 0) { dist = CalculateLineToPointDistance(polyLine.GetLine(0), point); } else { dist = Math.Min(dist, CalculateLineToPointDistance(polyLine.GetLine(i), point)); } i++; } return(dist); }
//========================================================================================= //CalculateLengthOfPolylineInsidePolygon(XYPolyline polyline, XYPolygon polygon) : double //========================================================================================= /// <summary> /// Calculates the length of polyline inside polygon. Lines segments on the edges of /// polygons are included with half their length. /// </summary> /// <param name="polyline">Polyline</param> /// <param name="polygon">Polygon</param> /// <returns> /// Length of polyline inside polygon. /// </returns> public static double CalculateLengthOfPolylineInsidePolygon(XYPolyline polyline, XYPolygon polygon) { double lengthInside = 0; int numberOfLineSegments = polyline.Points.Count - 1; for (int i = 0; i < numberOfLineSegments; i++) { XYLine line = new XYLine(polyline.GetLine(i)); lengthInside += CalculateLengthOfLineInsidePolygon(line, polygon); } return(lengthInside); }