/// <summary>
/// Returns the projection of this UV as a point from a specified line.
/// </summary>
/// <param name="line">The line.</param>
/// <returns>UV.</returns>
public UV Projection(UVLine line)
{
double u = (line.End - line.Start).DotProduct(this - line.Start);
u /= line.GetLength();
return(line.FindPoint(u));
}
/// <summary>
/// Return ths distance of the UV as a point from a line.
/// </summary>
/// <param name="line">The line.</param>
/// <returns>System.Double.</returns>
public double DistanceTo(UVLine line)
{
double area = (line.Start - line.End).CrossProductValue(line.Start - this);
area = Math.Abs(area);
return(area / line.GetLength());
}
/// <summary>
/// Gets the closest point of this UV as a point from a line.
/// </summary>
/// <param name="line">The line.</param>
/// <returns>UV.</returns>
public UV GetClosestPoint(UVLine line)
{
double length = line.GetLength();
double u = (line.End - line.Start).DotProduct(this - line.Start);
u /= length;
if (u < 0)
{
return(line.Start);
}
if (u > length)
{
return(line.End);
}
return(line.FindPoint(u));
}
/// <summary>
/// Gets the closest point of this UV as a point from a line.
/// </summary>
/// <param name="line">The line.</param>
/// <param name="isEndPoint">if set to <c>true</c> the closest point is the end point of the line.</param>
/// <returns>UV.</returns>
public UV GetClosestPoint(UVLine line, ref bool isEndPoint)
{
double length = line.GetLength();
double u = (line.End - line.Start).DotProduct(this - line.Start);
u /= length;
if (u < 0)
{
isEndPoint = true;
return(line.Start);
}
if (u > length)
{
isEndPoint = true;
return(line.End);
}
isEndPoint = false;
return(line.FindPoint(u));
}
/// <summary>
/// Returns the closest distance of this UV as a point from a line .
/// </summary>
/// <param name="line">The line.</param>
/// <returns>System.Double.</returns>
public double ClosestDistance(UVLine line)
{
UV p = new UV();
double length = line.GetLength();
double u = (line.End - line.Start).DotProduct(this - line.Start);
u /= length;
if (u < 0)
{
p = line.Start;
}
else if (u > length)
{
p = line.End;
}
else
{
p = this.GetClosestPoint(line);
}
return(p.DistanceTo(this));
}