public static double ShortestSquaredDistanceToOtherPolygon(this Polygon2D polygon, Polygon2D otherPolygon, out LineSegment2D shortestDistanceSegment)
{
var shortestSquaredDistance = double.MaxValue;
shortestDistanceSegment = new LineSegment2D();
LineSegment2D candidateSegment;
double candidateSquaredDistance;
foreach (var lineSegment0 in polygon.GetLineSegments())
{
foreach (var lineSegment1 in otherPolygon.GetLineSegments())
{
candidateSquaredDistance = lineSegment0.ShortestSquaredDistanceToOtherLineSegment(lineSegment1, out candidateSegment);
if (candidateSquaredDistance < shortestSquaredDistance)
{
shortestSquaredDistance = candidateSquaredDistance;
shortestDistanceSegment = candidateSegment;
}
}
}
return(shortestSquaredDistance);
}
public static double ShortestSquaredDistanceToOtherPolygon(this Polygon2D polygon, Polygon2D otherPolygon)
{
LineSegment2D shortestDistanceSegment;
return(ShortestSquaredDistanceToOtherPolygon(polygon, otherPolygon, out shortestDistanceSegment));
}
public static double ShortestSquaredDistanceToPoint(this Polygon2D polygon, Point2D point)
{
Point2D pointOnPolygon;
return(ShortestSquaredDistanceToPoint(polygon, point, out pointOnPolygon));
}
public static double ShortestDistanceToOtherPolygon(this Polygon2D polygon, Polygon2D otherPolygon)
{
return(Math.Sqrt(ShortestSquaredDistanceToOtherPolygon(polygon, otherPolygon)));
}
public static double ShortestDistanceToPoint(this Polygon2D polygon, Point2D point, out Point2D pointOnPolygon)
{
return(Math.Sqrt(ShortestSquaredDistanceToPoint(polygon, point, out pointOnPolygon)));
}