//p1 - start na otse4kata, p2 - end of segment
// nout internal - return null
public quaternion IsInternalForSegment(quaternion lP1, quaternion lP2)
{
quaternion rez = (new quaternion(q[0], q[1], q[2], q[3]) - lP1) / (lP2 - lP1);
return((rez.absV() < Constants.zero_dist && rez.real() > Constants.zero_dist && rez.real() < (1.0 - Constants.zero_dist)) ? rez : null);
}
//p1 - start na otse4kata, p2 - end of segment
// nout internal - return null
public static quaternion IsInternalForSegment(quaternion p1, quaternion p2, quaternion p)
{
quaternion rez = (p - p1) / (p2 - p1);
return((rez.absV() < Constants.zero_dist && rez.real() > Constants.zero_dist && rez.real() < (1.0 - Constants.zero_dist)) ? rez : null);
}
public void KojtoCAD_3D_Check()
{
Database db = HostApplicationServices.WorkingDatabase;
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
Matrix3d old = ed.CurrentUserCoordinateSystem;
ed.CurrentUserCoordinateSystem = Matrix3d.Identity;
try
{
TypedValue[] acTypValAr = new TypedValue[1];
acTypValAr.SetValue(new TypedValue((int)DxfCode.Start, "LINE"), 0);
List <Entity> solids = GlobalFunctions.GetSelection(ref acTypValAr, "Select Lines: ");
using (Transaction tr = db.TransactionManager.StartTransaction())
{
BlockTable acBlkTbl = tr.GetObject(db.BlockTableId, OpenMode.ForRead) as BlockTable;
BlockTableRecord acBlkTblRec = tr.GetObject(acBlkTbl[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;
foreach (Entity ent in solids)
{
Line Line1 = tr.GetObject(ent.ObjectId, OpenMode.ForWrite) as Line;
quaternion qStart1 = Line1.StartPoint;
quaternion qEnd1 = Line1.EndPoint;
quaternion q1 = qEnd1 - qStart1;
foreach (Entity ENT in solids)
{
if (ENT.ObjectId != ent.ObjectId)
{
Line Line2 = tr.GetObject(ENT.ObjectId, OpenMode.ForWrite) as Line;
quaternion qStart2 = Line2.StartPoint;
quaternion qEnd2 = Line2.EndPoint;
quaternion QQ1 = Common.IsCoincidentWithLine(qStart1, qEnd1, qStart2);
quaternion QQ2 = Common.IsCoincidentWithLine(qStart1, qEnd1, qEnd2);
if (((object)QQ1 != null || (object)QQ2 != null) && !((object)QQ1 != null && (object)QQ2 != null))
{
//internal - Q1 != null
quaternion Q1 = Common.IsInternalForSegment(qStart1, qEnd1, qStart2);
//internal - Q2 != null
quaternion Q2 = Common.IsInternalForSegment(qStart1, qEnd1, qEnd2);
#region split or no
if ((object)Q1 != null || (object)Q2 != null)
{
Point3d p = (Point3d)(q1 * (((object)Q1 != null) ? Q1.real() : Q2.real()) + qStart1);
Line Line3 = new Line((Point3d)qStart1, p);
Line3.Layer = Line1.Layer;
Line3.ColorIndex = Line1.ColorIndex;
acBlkTblRec.AppendEntity(Line3);
tr.AddNewlyCreatedDBObject(Line3, true);
Line Line4 = new Line((Point3d)qEnd1, p);
Line4.Layer = Line1.Layer;
Line4.ColorIndex = Line1.ColorIndex;
acBlkTblRec.AppendEntity(Line4);
tr.AddNewlyCreatedDBObject(Line4, true);
Line1.Erase();
break;
}
}
#endregion
}
}
if (!Line1.IsErased)
{
Line1.Visible = true;
}
}
tr.Commit();
}
}
catch { }
finally { ed.CurrentUserCoordinateSystem = old; }
}