public static LinkedList <AcDbEntity> Load(TextReader reader)
{
LinkedList <AcDbEntity> result = new LinkedList <AcDbEntity>();
State state = State.Start;
AcDbEntity entity = null;
DxfReader rdr = new DxfReader(reader);
while (!rdr.IsEof)
{
DxfNode node = rdr.Read();
if (state == State.Start || node.TypeCode == 0)
{
// завершаем текущее состояние
if (state != State.Start && node.TypeCode == 0)
{
state = State.Start;
}
if (node.TypeCode == 0)
{
switch ((string)node.Value)
{
case "LWPOLYLINE":
entity = new AcDbPolyline();
result.AddLast(entity);
state = State.Entity;
break;
case "LINE":
entity = new AcDbLine();
result.AddLast(entity);
state = State.Entity;
break;
case "CIRCLE":
entity = new AcDbCircle();
result.AddLast(entity);
state = State.Entity;
break;
case "ARC":
entity = new AcDbArc();
result.AddLast(entity);
state = State.Entity;
break;
}
}
}
else if (state == State.Entity)
{
entity.TakeNode(node);
}
}
return(result);
}
public void Visit(AcDbArc arc)
{
Arc newarc = new Arc();
newarc.Center.X = arc.Center.X;
newarc.Center.Y = arc.Center.Y;
newarc.Radius = arc.Radius;
newarc.StartAngle = arc.StartAngle;
newarc.SweepAngle = arc.EndAngle - arc.StartAngle;
_entities.AddLast(newarc);
}
