public List <AcadDB.Region> GetSubRegions()
{
List <AcadDB.Region> regions = new List <AcadDB.Region>();
AcadGeo.Vector3d tmp_vec = up_vector.CrossProduct(normal_vector);
AcadDB.DBObjectCollection objs = new AcadDB.DBObjectCollection();
AcadGeo.Vector3d hf = up_vector * height * 0.5;
AcadGeo.Vector3d wf = tmp_vec * (width * 0.5 - thickness);
AcadGeo.Vector3d tf = up_vector * thickness;
objs.Add(new AcadDB.Line(base_point + hf + wf, base_point + hf - wf));
objs.Add(new AcadDB.Line(base_point + hf - wf, base_point - hf - wf + tf));
objs.Add(new AcadDB.Line(base_point - hf - wf + tf, base_point - hf + wf + tf));
objs.Add(new AcadDB.Line(base_point - hf + wf + tf, base_point + hf + wf));
{
AcadDB.DBObjectCollection regs = AcadDB.Region.CreateFromCurves(objs);
foreach (var reg in regs)
{
if (reg is AcadDB.Region)
{
regions.Add(reg as AcadDB.Region);
}
}
}
return(regions);
}
public static ACADDB.Region AddRegion(ACADDB.ObjectId acadObjectId)
{
ACADDB.Region returnvalue = null;
// Get the current document and database
Document acDoc = Application.DocumentManager.MdiActiveDocument;
ACADDB.Database acCurDb = acDoc.Database;
// Start a transaction
using (ACADDB.Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
{
// Open the Block table for read
ACADDB.BlockTable acBlkTbl;
acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,
ACADDB.OpenMode.ForRead) as ACADDB.BlockTable;
// Open the Block table record Model space for write
ACADDB.BlockTableRecord acBlkTblRec;
acBlkTblRec = acTrans.GetObject(acBlkTbl[ACADDB.BlockTableRecord.ModelSpace],
ACADDB.OpenMode.ForWrite) as ACADDB.BlockTableRecord;
ACADDB.Polyline polyline = acTrans.GetObject(acadObjectId,
ACADDB.OpenMode.ForRead) as ACADDB.Polyline;
if (polyline != null)
{
ACADDB.DBObjectCollection acDBObjColl = new ACADDB.DBObjectCollection();
acDBObjColl.Add((ACADDB.DBObject)polyline.AcadObject);
// Calculate the regions based on each closed loop
ACADDB.DBObjectCollection myRegionColl = new ACADDB.DBObjectCollection();
myRegionColl = ACADDB.Region.CreateFromCurves(acDBObjColl);
ACADDB.Region acRegion = myRegionColl[0] as ACADDB.Region;
returnvalue = acRegion;
// Add the new object to the block table record and the transaction
acBlkTblRec.AppendEntity(acRegion);
acTrans.AddNewlyCreatedDBObject(acRegion, true);
// Dispose
}
// Save the new object to the database
acTrans.Commit();
}
return(returnvalue);
}