setUCS2Object(Point3d pnt3dBase0, Point3d pnt3dBaseX, Point3d pnt3dBaseY)
{
Vector3d vec3dXaxis = new Vector3d(pnt3dBaseX.X - pnt3dBase0.X, pnt3dBaseX.Y - pnt3dBase0.Y, pnt3dBaseX.Z - pnt3dBase0.Z);
Vector3d vec3dYaxis = new Vector3d(pnt3dBaseY.X - pnt3dBase0.X, pnt3dBaseY.Y - pnt3dBase0.Y, pnt3dBaseY.Z - pnt3dBase0.Z);
try
{
using (Transaction tr = BaseObjs.startTransactionDb())
{
// Open the UCS table for read
UcsTable acUCSTbl = getUcsTable();
UcsTableRecord acUCSTblRec;
// Check to see if the "New_UCS" UCS table record exists
if (acUCSTbl.Has("Temp") == false)
{
acUCSTblRec = new UcsTableRecord();
acUCSTblRec.Name = "Temp";
// Open the UCSTable for write
acUCSTbl.UpgradeOpen();
// Add the new UCS table record
acUCSTbl.Add(acUCSTblRec);
tr.AddNewlyCreatedDBObject(acUCSTblRec, true);
}
else
{
acUCSTblRec = tr.GetObject(acUCSTbl["Temp"], OpenMode.ForWrite) as UcsTableRecord;
}
acUCSTblRec.Origin = pnt3dBase0;
acUCSTblRec.XAxis = vec3dXaxis;
acUCSTblRec.YAxis = vec3dYaxis;
// Open the active viewport
ViewportTableRecord acVportTblRec;
acVportTblRec = tr.GetObject(BaseObjs._editor.ActiveViewportId, OpenMode.ForWrite) as ViewportTableRecord;
// Set the UCS current
acVportTblRec.SetUcs(acUCSTblRec.ObjectId);
BaseObjs._editor.UpdateTiledViewportsFromDatabase();
tr.Commit();
}
}
catch (System.Exception ex)
{
BaseObjs.writeDebug(ex.Message + " UCsys.cs: line: 328");
}
}
/// <summary>
/// 创建一个新的UCS
/// </summary>
/// <param name="db">数据库对象</param>
/// <param name="UCSName">要创建的UCS名称</param>
/// <returns>返回创建的UCS的Id</returns>
public static ObjectId AddUCS(this Database db, string UCSName)
{
var trans = db.TransactionManager;
//打开UCS表
UcsTable ut = (UcsTable)trans.GetObject(db.UcsTableId, OpenMode.ForRead);
if (!ut.Has(UCSName))//如果不存在名为UCSName的UCS，则新建一个UCS
{
//定义一个新的UCS
UcsTableRecord utr = new UcsTableRecord();
utr.Name = UCSName; //设置UCS名
ut.UpgradeOpen(); //切换UCS表的状态为写以添加新的UCS
//将UCS的信息添加到UCS表中
ut.Add(utr);
//把UCS添加到事务处理中
trans.AddNewlyCreatedDBObject(utr, true);
ut.DowngradeOpen(); //为了安全，将UCS表的状态切换为读
}
return(ut[UCSName]); //返回新添加的UCS的ObjectId
}
getUcsTableRecord(string name)
{
try
{
using (Transaction tr = BaseObjs.startTransactionDb())
{
UcsTable UcsT = getUcsTable();
if (UcsT.Has(name) == true)
{
UcsTableRecord Ucstr = (UcsTableRecord)tr.GetObject(UcsT[name], OpenMode.ForRead);
return(Ucstr);
}
tr.Commit();
}
}
catch (System.Exception ex)
{
BaseObjs.writeDebug(ex.Message + " UCsys.cs: line: 272");
}
return(null);
}
public static ObjectId OpenOrCreateUserCoordinateSystem(string ucsName, bool openIfExists = true)
{
using (Transaction trans = Tools.StartTransaction())
{
// Open the UCS table for read
UcsTable ucsTable = (UcsTable)trans.GetObject(Tools.GetAcadDatabase().UcsTableId, OpenMode.ForRead);
UcsTableRecord ucsTblRec;
// Check to see if the "New_UCS" UCS table record exists
if (ucsTable.Has(ucsName) == false)
{
ucsTblRec = new UcsTableRecord();
ucsTblRec.Name = ucsName;
// Open the UCSTable for write
ucsTable.UpgradeOpen();
// Add the new UCS table record
ucsTable.Add(ucsTblRec);
trans.AddNewlyCreatedDBObject(ucsTblRec, true);
ucsTblRec.Dispose();
}
else
{
if (openIfExists)
{
ucsTblRec = trans.GetObject(ucsTable[ucsName],
OpenMode.ForWrite) as UcsTableRecord;
}
else
{
throw new ArgumentException(string.Format("\nA UCS with this name \"{0}\" alredy exists", ucsName));
}
}
return(ucsTblRec.Id);
}
}
public void CreateUCS()
{
Database db = HostApplicationServices.WorkingDatabase;
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
UcsTable ut = (UcsTable)trans.GetObject(db.UcsTableId, OpenMode.ForWrite);
String ucsName = "myUCS";
if (ut.Has(ucsName) == false)
{
UcsTableRecord utr = new UcsTableRecord();
utr.Name = ucsName;
utr.Origin = new Point3d(0, 0, 0);
utr.XAxis = new Vector3d(0, 1, 0);
utr.YAxis = new Vector3d(-1, 0, 0);
Matrix3d mt = Matrix3d.AlignCoordinateSystem(Point3d.Origin, Vector3d.XAxis, Vector3d.YAxis, Vector3d.ZAxis, utr.Origin, utr.XAxis, utr.YAxis, utr.XAxis.CrossProduct(utr.YAxis));
ed.CurrentUserCoordinateSystem = mt;
}
trans.Commit();
}
}
/// <summary>
/// 将UCS表中已经存在的一个UCS设置为当前UCS
/// </summary>
/// <param name="db">数据库对象</param>
/// <param name="UCSName">UCS名称</param>
/// <returns>如果设置成功返回true，否则返回false</returns>
public static bool SetCurrentUCS(this Database db, string UCSName)
{
var trans = db.TransactionManager;
Editor ed = db.GetEditor();
//打开UCS表
UcsTable ut = (UcsTable)trans.GetObject(db.UcsTableId, OpenMode.ForRead);
//如果不存在名为UCSName的UCS，则返回
if (!ut.Has(UCSName))
{
return(false);
}
//打开当前活动的视口为写的状态
ViewportTableRecord vtr = (ViewportTableRecord)trans.GetObject(db.CurrentViewportTableRecordId(), OpenMode.ForWrite);
//设置当前UCS
vtr.SetUcs(ut[UCSName]);
vtr.DowngradeOpen();
//更新视口
ed.UpdateTiledViewportsFromDatabase();
return(true);
}
addUCS(Point3d pnt3dOrigin, Point3d pnt3dXaxis, Point3d pnt3dYaxis, string nameUCS)
{
Matrix3d newMatrix = new Matrix3d();
try
{
using (Transaction tr = BaseObjs.startTransactionDb())
{
// Open the UCS table for read
UcsTable ucsT = tr.GetObject(BaseObjs._db.UcsTableId, OpenMode.ForRead) as UcsTable;
UcsTableRecord ucstr;
Vector3d vector3dXaxis = new Vector3d(pnt3dXaxis.X - pnt3dOrigin.X, pnt3dXaxis.Y - pnt3dOrigin.Y, pnt3dXaxis.Z - pnt3dOrigin.Z);
Vector3d vector3dYaxis = new Vector3d(pnt3dYaxis.X - pnt3dOrigin.X, pnt3dYaxis.Y - pnt3dOrigin.Y, pnt3dYaxis.Z - pnt3dOrigin.Z);
Vector3d vector3dZ = vector3dXaxis.CrossProduct(vector3dYaxis);
Vector3d vector3dY = vector3dZ.CrossProduct(vector3dXaxis);
Vector3d vector3dPerpY = new Vector3d(vector3dY.X + pnt3dOrigin.X, vector3dY.Y + pnt3dOrigin.Y, vector3dY.Z + pnt3dOrigin.Z);
// Check to see if the nameUCS UCS table record exists
if (ucsT.Has(nameUCS) == false)
{
ucstr = new UcsTableRecord();
ucstr.Name = nameUCS;
// Open the UCSTable for write
ucsT.UpgradeOpen();
// Add the new UCS table record
ucsT.Add(ucstr);
tr.AddNewlyCreatedDBObject(ucstr, true);
}
else
{
ucstr = (UcsTableRecord)tr.GetObject(ucsT[nameUCS], OpenMode.ForWrite);
}
ucstr.Origin = pnt3dOrigin;
ucstr.XAxis = vector3dXaxis;
ucstr.YAxis = vector3dPerpY;
// Open the active viewport
ViewportTableRecord vptr;
vptr = (ViewportTableRecord)tr.GetObject(BaseObjs._editor.ActiveViewportId, OpenMode.ForWrite);
// Display the UCS Icon at the origin of the current viewport
vptr.IconAtOrigin = true;
vptr.IconEnabled = true;
// Set the UCS current
vptr.SetUcs(ucstr.ObjectId);
BaseObjs._editor.UpdateTiledViewportsFromDatabase();
newMatrix = Matrix3d.AlignCoordinateSystem(Point3d.Origin, Vector3d.XAxis, Vector3d.YAxis, Vector3d.ZAxis,
vptr.Ucs.Origin, vptr.Ucs.Xaxis, vptr.Ucs.Yaxis, vptr.Ucs.Zaxis);
tr.Commit();
}
}
catch (System.Exception ex)
{
BaseObjs.writeDebug(ex.Message + " UCsys.cs: line: 149");
}
return(newMatrix);
}
private static bool SwitchUCS(Point3d cornerCoords, double textAngle)
{
// Get the current document and database
Document acDoc = Application.DocumentManager.MdiActiveDocument;
Database acCurrDb = acDoc.Database;
Editor acEditor = acDoc.Editor;
using (Transaction acTrans = acCurrDb.TransactionManager.StartTransaction())
{
try
{
UcsTable acUCSTbl = acTrans.GetObject(acCurrDb.UcsTableId, OpenMode.ForRead) as UcsTable;
UcsTableRecord jppUCSTblRec;
// Check to see if JPP App UCS table record exists and create if not
if (acUCSTbl.Has("JPP_App_UCS") == false)
{
jppUCSTblRec = new UcsTableRecord();
jppUCSTblRec.Name = "JPP_App_UCS";
acUCSTbl.UpgradeOpen();
acUCSTbl.Add(jppUCSTblRec);
acTrans.AddNewlyCreatedDBObject(jppUCSTblRec, true);
}
else
{
jppUCSTblRec = acTrans.GetObject(acUCSTbl["JPP_App_UCS"], OpenMode.ForWrite) as UcsTableRecord;
}
jppUCSTblRec.Origin = cornerCoords;
jppUCSTblRec.XAxis = cornerCoords.GetVectorTo(new Point3d(cornerCoords.X + Math.Cos(textAngle),
cornerCoords.Y + Math.Sin(textAngle),
0.0));
jppUCSTblRec.YAxis = cornerCoords.GetVectorTo(new Point3d(cornerCoords.X - Math.Sin(textAngle),
cornerCoords.Y + Math.Cos(textAngle),
0.0));
// Open the active viewport
ViewportTableRecord acVportTblRec = acTrans.GetObject(acEditor.ActiveViewportId, OpenMode.ForWrite) as ViewportTableRecord;
// Display the UCS Icon as the origin of the current viewport
// acVportTblRec.IconAtOrigin = true;
// acVportTblRec.IconEnabled = true;
// Set the UCS current
acVportTblRec.SetUcs(jppUCSTblRec.ObjectId);
acEditor.UpdateTiledViewportsFromDatabase();
// Display the name of the current UCS
UcsTableRecord acUCSTblRecActive = acTrans.GetObject(acVportTblRec.UcsName, OpenMode.ForRead) as UcsTableRecord;
acEditor.WriteMessage("\nThe current UCS is: {0}", acUCSTblRecActive.Name);
// Save the new objects to the database
acTrans.Commit();
return(true);
}
catch (Autodesk.AutoCAD.Runtime.Exception acException)
{
Autodesk.AutoCAD.ApplicationServices.Application.ShowAlertDialog
("The following exception was caught: \n" + acException.Message
+ "\nError creating UCS!");
acTrans.Abort();
return(false);
}
}
}