//=====================================================================
// 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);
}
