public static ILength GetDistance(ILineSegmentGeometry g, IPosition point)
{
double xp, yp;
BasicGeom.GetPerpendicular(point.X, point.Y, g.Start.X, g.Start.Y, g.End.X, g.End.Y, out xp, out yp);
double d = BasicGeom.Distance(new Position(xp, yp), point);
return(new Length(d));
}
internal override uint IntersectSegment(IntersectionResult results, ILineSegmentGeometry that)
{
return IntersectionHelper.Intersect(results, (ILineSegmentGeometry)this, that);
}
abstract internal uint IntersectSegment(IntersectionResult results, ILineSegmentGeometry seg);
internal override uint IntersectSegment(IntersectionResult results, ILineSegmentGeometry seg)
{
return(Make().IntersectSegment(results, seg));
}
public static ILength GetDistance(ILineSegmentGeometry g, IPosition point)
{
double xp, yp;
BasicGeom.GetPerpendicular(point.X, point.Y, g.Start.X, g.Start.Y, g.End.X, g.End.Y, out xp, out yp);
double d = BasicGeom.Distance(new Position(xp, yp), point);
return new Length(d);
}
internal static uint Intersect(IntersectionResult result, ILineSegmentGeometry seg, ICircleGeometry circle)
{
return Intersect(result, seg.Start, seg.End, circle.Center, circle.Radius);
}
internal static uint Intersect(IntersectionResult result, ILineSegmentGeometry seg, IMultiSegmentGeometry line)
{
uint nx=0;
IPointGeometry a = seg.Start;
IPointGeometry b = seg.End;
IPointGeometry[] data = line.Data;
for (int i=1; i<data.Length; i++)
nx += Intersect(result, a, b, data[i-1], data[i]);
return nx;
}
internal override uint IntersectSegment(IntersectionResult results, ILineSegmentGeometry that)
{
return(IntersectionHelper.Intersect(results, that, (ICircularArcGeometry)this));
}
public static IWindow GetExtent(ILineSegmentGeometry g)
{
return(new Window(g.Start, g.End));
}
public static void Render(ILineSegmentGeometry g, ISpatialDisplay display, IDrawStyle style)
{
style.Render(display, new IPosition[] { g.Start, g.End });
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="g">The geometry to copy</param>
public LineSegmentGeometry(ILineSegmentGeometry g)
{
m_Start = g.Start;
m_End = g.End;
}
/// <summary>
/// Gets the position that is a specific distance from the start of a line segment.
/// </summary>
/// <param name="g">The line segment</param>
/// <param name="dist">The distance from the start of the segment.</param>
/// <param name="result">The position found</param>
/// <returns>True if the distance is somewhere ON the line. False if the distance
/// was less than zero, or more than the line length (in that case, the position
/// found corresponds to the corresponding terminal point).</returns>
public static bool GetPosition(ILineSegmentGeometry g, double d, out IPosition result)
{
return GetPosition(g.Start, g.End, d, out result);
}
public static ILength GetLength(ILineSegmentGeometry g)
{
double d = BasicGeom.Distance(g.Start, g.End);
return new Length(d);
}
public static IWindow GetExtent(ILineSegmentGeometry g)
{
return new Window(g.Start, g.End);
}
internal uint IntersectSegment(ILineSegmentGeometry seg)
{
return m_IntersectedObject.LineGeometry.IntersectSegment(this, seg);
}
public static ILength GetLength(ILineSegmentGeometry g)
{
double d = BasicGeom.Distance(g.Start, g.End);
return(new Length(d));
}
internal uint IntersectSegment(ILineSegmentGeometry seg)
{
return(m_IntersectedObject.LineGeometry.IntersectSegment(this, seg));
}
/// <summary>
/// Gets the position that is a specific distance from the start of a line segment.
/// </summary>
/// <param name="g">The line segment</param>
/// <param name="dist">The distance from the start of the segment.</param>
/// <param name="result">The position found</param>
/// <returns>True if the distance is somewhere ON the line. False if the distance
/// was less than zero, or more than the line length (in that case, the position
/// found corresponds to the corresponding terminal point).</returns>
public static bool GetPosition(ILineSegmentGeometry g, double d, out IPosition result)
{
return(GetPosition(g.Start, g.End, d, out result));
}
internal override uint IntersectSegment(IntersectionResult results, ILineSegmentGeometry seg)
{
return Make().IntersectSegment(results, seg);
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="g">The geometry to copy</param>
public LineSegmentGeometry(ILineSegmentGeometry g)
{
m_Start = g.Start;
m_End = g.End;
}
internal static uint Intersect(IntersectionResult result, ILineSegmentGeometry seg, ICircularArcGeometry arc)
{
if (CircularArcGeometry.IsCircle(arc))
return Intersect(result, seg, arc.Circle);
else
return Intersect(result, seg.Start, seg.End, arc.First, arc.Second, arc.Circle);
}
public static void Render(ILineSegmentGeometry g, ISpatialDisplay display, IDrawStyle style)
{
style.Render(display, new IPosition[] { g.Start, g.End });
}
internal static uint Intersect(IntersectionResult results, ILineSegmentGeometry ab, ILineSegmentGeometry pq)
{
return Intersect(results, ab.Start, ab.End, pq.Start, pq.End);
}
internal abstract uint IntersectSegment(IntersectionResult results, ILineSegmentGeometry seg);
