public GeLine(GePoint sp, GePoint ep)
{
Debug.Assert(sp != null && ep != null);
VectorAdaptor dir = ep._Proxy - sp._Proxy;
m_Proxy = MathAdaptorFactory.Instance.CreateLineAdaptor(
sp._Proxy, dir.UnitVectorAdaptor);
}
public bool Contains(LineAdaptor line)
{
if (null == line) return false;
if (Contains(line.BasePoint)
&& Normal.IsPerpendicularTo(line.Direction))
return true;
return false;
}
// The shortest distance of two lines.
public double DistanceTo(LineAdaptor lineB)
{
Debug.Assert(lineB != null);
if (IsParallelTo(lineB))
{
// Get the distance of point to line
return DistanceTo(lineB.BasePoint);
}
else
{
// Get a plan contains line B and is parallel to this line.
VectorAdaptor normal = this.Direction.Cross(lineB.Direction.VectorAdaptor);
PlaneAdaptor newPlane = MathAdaptorFactory.Instance.CreatePlaneAdaptor(
lineB.BasePoint
, MathAdaptorFactory.Instance.CreateUnitVectorAdaptor(
normal.X, normal.Y, normal.Z));
// Get the distance of point to plane
return this.BasePoint.DistanceTo(newPlane);
}
}
public GeLine(GePoint point, UnitVector direction)
{
Debug.Assert(point != null && direction != null);
m_Proxy = MathAdaptorFactory.Instance.CreateLineAdaptor(point._Proxy, direction._Proxy);
}
public bool IsOn(LineAdaptor line)
{
if (null == line) return false;
return line.Contains(this);
}
public bool IsParallelTo(LineAdaptor lineB)
{
if (null == lineB) return false;
return (this.Direction.IsParallelTo(lineB.Direction));
}