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using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.Serialization;
using System.Collections;
using DiagramUI;
using CategoryTheory;
namespace Motion6D
{
[Serializable()]
public class ReferenceFrameArrow : ISerializable, ICategoryArrow, IRemovableObject
{
#region Fields
IPosition source;
IReferenceFrame target;
object obj;
#endregion
#region Constructors
public ReferenceFrameArrow()
{
}
public ReferenceFrameArrow(SerializationInfo info, StreamingContext context)
{
}
#endregion
#region ISerializable Members
void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)
{
}
#endregion
#region ICategoryArrow Members
ICategoryObject ICategoryArrow.Source
{
get
{
return source as ICategoryObject;
}
set
{
if (!(value is IPosition))
{
CategoryException.ThrowIllegalSourceException();
}
IPosition position = value as IPosition;
if (position.Parent != null)
{
throw new CategoryException("Root", this);
}
source = position;
}
}
ICategoryObject ICategoryArrow.Target
{
get
{
return target as ICategoryObject;
}
set
{
if (!(value is IReferenceFrame))
{
CategoryException.ThrowIllegalTargetException();
}
IAssociatedObject sa = source as IAssociatedObject;
IAssociatedObject ta = value as IAssociatedObject;
INamedComponent ns = sa.Object as INamedComponent;
INamedComponent nt = ta.Object as INamedComponent;
if ((nt.Root != nt) | (ns.Root != ns))
{
if (nt.Root.Ord >= ns.Root.Ord)
{
throw new Exception("Illegal order");
}
}
target = value as IReferenceFrame;
source.Parent = target;
target.Children.Add(source);
}
}
bool ICategoryArrow.IsMonomorphism
{
get { throw new Exception("The method or operation is not implemented."); }
}
bool ICategoryArrow.IsEpimorphism
{
get { throw new Exception("The method or operation is not implemented."); }
}
bool ICategoryArrow.IsIsomorphism
{
get { throw new Exception("The method or operation is not implemented."); }
}
ICategoryArrow ICategoryArrow.Compose(ICategory category, ICategoryArrow next)
{
throw new Exception("The method or operation is not implemented.");
}
#endregion
#region IAssociatedObject Members
object IAssociatedObject.Object
{
get
{
return obj;
}
set
{
obj = value;
}
}
#endregion
#region IRemovableObject Members
void IRemovableObject.RemoveObject()
{
source.Parent = null;
if (target != null)
{
target.Children.Remove(source);
}
}
#endregion
#region Specific Members
static public List<IPosition> Prepare(IDesktop desktop)
{
List<IPosition> frames = new List<IPosition>();
ICollection objs = desktop.AllComponents;
foreach (object o in objs)
{
if (!(o is IObjectLabel))
{
continue;
}
IObjectLabel lab = o as IObjectLabel;
ICategoryObject co = lab.Object;
if (!(co is IReferenceFrame))
{
if (co is IPosition)
{
IPosition p = co as IPosition;
if (p.Parent == null)
{
frames.Add(p);
}
}
continue;
}
IReferenceFrame f = co as IReferenceFrame;
if (f.Parent != null)
{
continue;
}
prepare(f, frames);
}
return frames;
}
public static void Update(List<IPosition> frames)
{
foreach (IPosition frame in frames)
{
frame.Update();
}
}
private static void prepare(IReferenceFrame frame, List<IPosition> frames)
{
List<IPosition> children = frame.Children;
frames.Add(frame);
foreach (IPosition p in children)
{
if (frames.Contains(p))
{
continue;
}
if (p is IReferenceFrame)
{
IReferenceFrame f = p as IReferenceFrame;
prepare(f, frames);
}
else
{
frames.Add(p);
}
}
}
#endregion
}
}
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Ph. D. Petr Ivankov worked as scientific researcher at Russian Mission Control Centre since 1978 up to 2000. Now he is engaged by Aviation training simulators http://dinamika-avia.com/ . His additional interests are:
1) Noncommutative geometry
http://front.math.ucdavis.edu/author/P.Ivankov
2) Literary work (Russian only)
http://zhurnal.lib.ru/editors/3/3d_m/
3) Scientific articles
http://arxiv.org/find/all/1/au:+Ivankov_Petr/0/1/0/all/0/1