void asdktest5 () {
    //----- Select the entities
    ads_name ss, en ;
    if ( acedSSGet (NULL, NULL, NULL, NULL, ss) != RTNORM )
        return ;

    //----- Append entity IDs to the collector
    long n ;
    AcDbObjectId id ;
    AsdkHlrCollector collector ;
    acedSSLength (ss, &n) ;
    for ( int i =0 ; i < n ; i++ ) {
        acedSSName (ss, i, en) ;
        acdbGetObjectId (id, en) ;
        collector.addEntity (id) ;
    }
    acedSSFree (ss) ;

    //----- Display a dialog box to select HLR controls, the user wants to apply to the HLR engine
    AfxSetResourceHandle (_hdllInstance) ;
    CControlsDlg dlg ;
    dlg.mnControls =kProject | kEntity | kBlock | kHonorInternals ;
    if ( dlg.DoModal () != IDOK ) {
        AfxSetResourceHandle (acedGetAcadResourceInstance ()) ;
        return ;
    }
    AfxSetResourceHandle (acedGetAcadResourceInstance ()) ;

    int control =dlg.mnControls ;
    acutPrintf (ACRX_T("\nAbout to call hidden Line calculation")) ;
    acutPrintf (ACRX_T("\nCalling with %d Entities"), collector.getInputEntityIds ().logicalLength ()) ;
    acutPrintf (ACRX_T("\nkProject %s "), control & kProject ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkShowAll %s "), control & kShowAll ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkEntity %s "), control & kEntity  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkBlock %s "), control & kBlock  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkSubentity %s "), control & kSubentity  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkHideTangents %s "), control & kHideTangents  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkCleanup %s "), control & kCleanup  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkIsolines %s "), control & kIsolines  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkUnite %s "), control & kUnite  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkReuse %s "), control & kReuse  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkProgress %s "), control & kProgress  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkHandlePoints %s "), control & kHandlePoints  ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkHonorInternals %s "), control & kHonorInternals ? ACRX_T("On") : ACRX_T("Off")) ;
    acutPrintf (ACRX_T("\nkMeshSilhouettes %s "), control & kMeshSilhouettes ? ACRX_T("On") : ACRX_T("Off")) ;
    
    //----- Ask for virtual viewport settings
    AcDbViewport *pVp =NULL ;
    if ( !pickViewport (pVp) )
        return ;

    //----- Process hidden line removal
    AsdkHlrEngine hlr (pVp, control) ;
    hlr.run (collector) ;
    delete pVp ;

    //----- The following code will collect the color of the originator entity of an edge
    //----- and will assign it to the resulting entity.
    actrTransactionManager->startTransaction () ;

    int nOutput =collector.mOutputData.logicalLength () ;
    acutPrintf (ACRX_T("\nHlr returned %d curves"), nOutput) ;
    for ( int j =0 ; j < nOutput ; j++ ) {
        AsdkHlrData *pResult =collector.mOutputData [j] ;

        AcDbEntity *pResultEntity =pResult->getResultEntity () ;
        AcDbObjectId id ;
        if ( postToDatabase (NULL, pResultEntity, id) != Acad::eOk ) {
            acutPrintf (_T("Failed to add entity to current space.\n")) ;
            break ;
        }

        actrTransactionManager->getObject ((AcDbObject *&)pResultEntity, id, AcDb::kForWrite) ;

        AcDbObjectIdArray ids =pResult->getObjectIds () ;
        int last =ids.logicalLength () - 1 ;
        AcCmColor color ;
        AcDbObjectId layerId ;
        color.setColorIndex (0) ;
        while ( last >= 0 && color.colorIndex () == 0 ) {
            AcDbObjectId innerId =ids.at (last) ;
            AcDbObject *pObj ;
            actrTransactionManager->getObject (pObj, innerId, AcDb::kForRead) ;
            AcDbEntity *pEnt =AcDbEntity::cast (pObj) ;

            color =pEnt->color () ;
            layerId =pEnt->layerId () ;
            last-- ;
        }
        if ( layerId != AcDbObjectId::kNull ) {
            pResultEntity->setColor (color) ;
            pResultEntity->setLayer (layerId) ;
        } else {
            AcDbEntity *pEnt =pResult->getEntity () ;
            if ( pEnt != NULL ) {
                pResultEntity->setColor (pEnt->color ()) ;
                pResultEntity->setLayer (pEnt->layer ()) ;
            }
        }
        pResultEntity->close () ;
    }

    actrTransactionManager->endTransaction();
}
Example #2
0
void DrawHelper::ConfigDraw( const CString& geType, const CString& drawName )
{
    MineGEDraw* pDraw = MineGEDrawSystem::GetInstance()->getGEDraw( geType, drawName );
    if( pDraw == 0 ) return; // 该绘制效果不存在

    pDraw->configExtraParams(); // 配置附加参数

    AcDbObjectIdArray objIds;
    ArxDataTool::GetEntsByType( geType, objIds, false );
    if( objIds.isEmpty() ) return; // dwg图形中没有任何geType类型图元

    AcTransaction* pTrans = actrTransactionManager->startTransaction();
    if( pTrans == 0 ) return;

    int len = objIds.length();
    for( int i = 0; i < len; i++ )
    {
        AcDbObject* pObj;
        if( Acad::eOk != pTrans->getObject( pObj, objIds.at( i ), AcDb::kForWrite ) ) continue;

        MineGE* pGE = MineGE::cast( pObj );
        if( pGE == 0 ) continue;

        pGE->configDraw( pDraw->isA()->name() ); // 更新extra param
        pGE->recordGraphicsModified( true );   // 更新图形
    }
    actrTransactionManager->endTransaction();

    AcRxClass* pClass = AcRxClass::cast( acrxClassDictionary->at( geType ) );
    if( pClass != 0 && pClass->isDerivedFrom( LinkedGE::desc() ) )
    {
        UpdateLinkedGE( objIds );
    }
}
Example #3
0
void DrawHelper::SwitchDraw( const CString& geType, const CString& drawName )
{
    // 设置当前可视化效果
    if( !SetCurDraw( geType, drawName ) ) return;

    // 更新所有指定类型的图元
    AcDbObjectIdArray objIds;
    ArxDataTool::GetEntsByType( geType, objIds, false );
    if( objIds.isEmpty() ) return; // dwg图形中没有任何MineGE类型图元

    // 将所有geType类型图元的绘制效果更新
    AcTransaction* pTrans = actrTransactionManager->startTransaction();
    if( pTrans == 0 ) return;

    int len = objIds.length();
    for( int i = 0; i < len; i++ )
    {
        AcDbObject* pObj;
        if( Acad::eOk != pTrans->getObject( pObj, objIds.at( i ), AcDb::kForWrite ) ) continue;

        MineGE* pGE = MineGE::cast( pObj );
        if( pGE == 0 ) continue;

        pGE->updateDraw();             // 更细可视化效果指针
        //pGE->recordGraphicsModified(true);  // 更新图形
    }

    actrTransactionManager->endTransaction();

    AcRxClass* pClass = AcRxClass::cast( acrxClassDictionary->at( geType ) );
    if( pClass != 0 && pClass->isDerivedFrom( LinkedGE::desc() ) )
    {
        UpdateLinkedGE( objIds );
    }
}
Example #4
0
static void UpdateEdge( const AcDbObjectIdArray& objIds )
{
    AcTransaction* pTrans = actrTransactionManager->startTransaction();
    if( pTrans == 0 ) return;

    int n = objIds.length();
    for( int i = 0; i < n; i++ )
    {
        AcDbObjectId objId = objIds.at( i );

        LinkedGE* pEdge = OpenEdge2( pTrans, objId, AcDb::kForWrite );
        pEdge->recordGraphicsModified( true ); // 标签图形已经修改,需要更新图形
    }
    actrTransactionManager->endTransaction();
}
void Additional_Class::Set_ObjectColor( AcDbObjectIdArray obIDArray, int ColorIndex )
{
	AcDbObjectId tempID;
	for (int i=0; i<obIDArray.length(); i++)
	{
		 tempID = obIDArray.at(i);
		 Set_ObjectColor(tempID, ColorIndex);
	}
	//
	//AcDbEntity *pEnt_Temp;
	//if (acdbOpenAcDbEntity(pEnt_Temp, ObID, AcDb::kForWrite) != Acad::eOk)
	//{
	//	acutPrintf(_T("\nOPEN ERROR"));
	//	return;
	//}
	//pEnt_Temp->setColorIndex(ColorIndex);

	//pEnt_Temp->close();
	return;
}
Example #6
0
static void BuildJunctionEdgeInfo( const AcDbObjectIdArray& objIds,
                                   const AcGePoint3d& junctionPt,
                                   EdgeInfo& ges )
{
    AcTransaction* pTrans = actrTransactionManager->startTransaction();
    if( pTrans == 0 ) return;

    int n = objIds.length();
    for( int i = 0; i < n; i++ )
    {
        AcDbObjectId objId = objIds.at( i );

        JunctionEdgeInfo info = {objId, true, AcGeVector3d::kIdentity};

        LinkedGE* pEdge = OpenEdge2( pTrans, objId, AcDb::kForRead );
        if( pEdge == 0 ) continue;

        AcGePoint3d startPt, endPt;
        pEdge->getSEPoint( startPt, endPt );
        if( startPt == junctionPt )
        {
            info.startOrEnd = true;
            info.angle = pEdge->getStartPointInExtendAngle();
        }
        else if( endPt == junctionPt )
        {
            info.startOrEnd = false;
            info.angle = pEdge->getEndPointInExtendAngle();
        }

        if( info.angle.isZeroLength() ) continue; // 零向量表示不处理闭合
        //acutPrintf(_T("\nid:%d\tangle:%.3f\tdraw:%s"),
        //			info.objId,
        //			info.angle.angleTo(AcGeVector3d::kXAxis, -AcGeVector3d::kZAxis),
        //			pEdge->getCurrentDraw());

        ges.push_back( info );
    }
    actrTransactionManager->endTransaction();
}
//When an new entity is added, set its draw order based on the draw order of other entities on the same layer.
void
adskMyDbReactor::objectAppended(const AcDbDatabase* db, const AcDbObject* pObj)
{
	AcDbEntity * pEnt = AcDbEntity::cast(pObj);
	Acad::ErrorStatus es;
	if (pEnt != NULL)
	{
		AcDbBlockTable *pBT = NULL;
		AcDbBlockTableRecord *pBTR	= NULL;
		
		//use transaction since the datbase is still open for write here.
		es=actrTransactionManager->enableGraphicsFlush(true);
		AcTransaction *pTrans = actrTransactionManager->startTransaction() ;
		
		if(!pTrans)
		{
			acutPrintf("\nCan't start transaction!");
			return;
		}
		AcDbObject *pObj = NULL ;
		AcDbDatabase *pDb = NULL;
		AcDbObjectId modelSpaceId;
		pDb = AcDbDatabase::cast(db);
		
		//get AcDbBlockTable for read
		if(Acad::eOk != pDb->getBlockTable(pBT, AcDb::kForRead))
		{
			acutPrintf("can't open block table for read");
			actrTransactionManager->abortTransaction();
			return;
		}
		
		//get the model space object id
		if(Acad::eOk != pBT->getAt( ACDB_MODEL_SPACE, modelSpaceId))
		{
			acutPrintf("\ncan't get model space Id");
			actrTransactionManager->abortTransaction();
			pBT->close();
			return;
		}
		
		pBT->close();
		
		
		//get model space block record for write from transaction
		if (Acad::eOk != pTrans->getObject((AcDbObject*&)pBTR, modelSpaceId, AcDb::kForWrite))
		{
			acutPrintf("\ncan't open model space block table record for write");
			actrTransactionManager->abortTransaction();
			return;
		}
		
		AcDbObjectIdArray eIds;
		
		//get AcDbSortEntsTable
		AcDbSortentsTable *pSortTab = NULL;
		if(Acad::eOk != pBTR->getSortentsTable(pSortTab, AcDb::kForWrite, false))
		{
			acutPrintf("\ncan't get AcDbSortEntsTable for write");
			actrTransactionManager->abortTransaction();
			return;
		}
		
		//put objectIds of all the entities in an Id array.The order of objectIds in the array is the
		//same as their draworders from bottom to top.The newly created entity is always at the top and the last item
		//in the array
		if(Acad::eOk != pSortTab->getFullDrawOrder(eIds))
		{
			acutPrintf("\ncan't get full draworder");
			pSortTab->close();
			actrTransactionManager->abortTransaction();
			return;
		}
		AcDbEntity *pRefEnt = NULL;
		//iterate through the entities in the order of their draworders. If an entity on the same layer is found
		//insert the newly created entity before it.
		int i;
		for(i =0; i<eIds.length(); i++)
		{
			es = pTrans->getObject((AcDbObject*&)pRefEnt, eIds.at(i), AcDb::kForRead);
			if(pRefEnt->layerId() == pEnt->layerId())
				break;
		}	
		eIds.insertAt(i, pEnt->objectId());
		//remove the newly created entity from the end of the array
		eIds.removeLast();
		//reset draworder
		es = pSortTab->setRelativeDrawOrder(eIds);
		pSortTab->close();
		es=actrTransactionManager->endTransaction();
		actrTransactionManager->flushGraphics();

		//set flag for regen
		gbDraworderChanged = true;	
	}

}
Example #8
0
Acad::ErrorStatus CZhfPalette::Wblock(AcDbDatabase*& pDbFrom, AcDbDatabase*& pDbTo, /*const AcGePoint3d& pt_3d_base,*/ const AcGeMatrix3d & xform)
{
	Acad::ErrorStatus es ;

	AcDbObjectIdArray objIdsOut;

	AcDbBlockTable* pBT = NULL ;
	pDbFrom->getBlockTable(pBT, AcDb::kForRead);
	AcDbBlockTableRecord* pBTR = NULL;
	es = pBT->getAt(ACDB_MODEL_SPACE, pBTR, AcDb::kForRead);
	pBT->close();

	AcDbBlockTableRecordIterator* pIT;
	es = pBTR->newIterator(pIT) ;
	for (; !pIT->done(); pIT->step()) 
	{ 
		AcDbEntity* pEnt = NULL ;
		if (Acad::eOk==pIT->getEntity(pEnt, AcDb::kForRead))
		{
// 			if (!pEnt->isKindOf(AcDbAttributeDefinition::desc()))
// 			{
				AcDbObjectId objId;
				if (Acad::eOk == pIT->getEntityId(objId))
				{
					objIdsOut.append(objId);
				}
// 			}
			pEnt->close() ;
		}
	}

	delete pIT;
	pBTR->close();

	if (!objIdsOut.isEmpty()) 
	{
		for (int i=0; i<objIdsOut.length(); i++)
		{
			AcDbObjectId objId = objIdsOut.at(i);
			AcDbEntity *pEnt = NULL ;
			if(Acad::eOk==acdbOpenAcDbEntity(pEnt,objId, AcDb::kForRead))
			{
				AcDbObjectId objIdDic ;
				if ((objIdDic = pEnt->extensionDictionary())!= AcDbObjectId::kNull)
				{
					AcDbDictionary *pDict = NULL;				
					if (Acad::eOk==acdbOpenObject(pDict, objIdDic, AcDb::kForWrite))
					{
						pDict->setTreatElementsAsHard(Adesk::kTrue);
						pDict->close();
					}
				}
				pEnt->close() ;
			}
		}

		AcDbDatabase *pTempDb ;
		es = pDbFrom->wblock( pTempDb, objIdsOut, AcGePoint3d::kOrigin ) ;
		if (Acad::eOk != es )
		{
			acedAlert( _T("wblock failed!") );
			return es ;
		}
		es = pDbTo->insert( xform, pTempDb ) ;
		if (Acad::eOk != es)
			acedAlert( _T("insert failed!" ));
		if (pTempDb)
		{
			delete pTempDb;
			pTempDb = NULL ;
		}
	}
	else
	{
		acutPrintf(_T("\nNo entities found in model space of DWG"));
	}

	return es ;
}
void asdktest1 () {
    //----- Select the entities
    ads_name ss, en ;
    if ( acedSSGet (NULL, NULL, NULL, NULL, ss) != RTNORM )
        return ;

    //----- Append entity IDs to the collector
    long n ;
    AcDbObjectId id ;
    AsdkHlrCollector collector ;
    collector.setDeleteState (true) ;
    acedSSLength (ss, &n) ;
    for ( int i =0 ; i < n ; i++ ) {
        acedSSName (ss, i, en) ;
        acdbGetObjectId (id, en) ;
        collector.addEntity (id) ;
    }
    acedSSFree (ss) ;

    //----- Get current viewport settings
    struct resbuf rb;
    acedGetVar(ACRX_T(/*NOXLATE*/"viewdir"), &rb);
    ads_point dirPt;
    acdbUcs2Wcs (rb.resval.rpoint, dirPt, Adesk::kTrue) ;
    acedGetVar(ACRX_T(/*NOXLATE*/"target"), &rb);
    ads_point tarPt;
    acdbUcs2Wcs (rb.resval.rpoint, tarPt, Adesk::kFalse) ;

    //----- Ask if non-visible edges should be created
    int hidLines =AfxMessageBox (ACRX_T("Would you like to see hidden lines?"), MB_YESNO) ;
    int honorInt =AfxMessageBox (ACRX_T("Would you like to honor internal visibility of polyface meshes or ACIS objects?"), MB_YESNO) ;
    int meshSils =AfxMessageBox (ACRX_T("Would you like to calculate silhouettes of polyface meshes?"), MB_YESNO) ;
    int unit =AfxMessageBox (ACRX_T("Would you like to unit solid before processing?"), MB_YESNO) ;

    //----- Process hidden line removal
    AsdkHlrEngine hlr (
        asPnt3d (tarPt), asVec3d (dirPt),
        kEntity | kBlock | kSubentity | kProgress
        | (honorInt == IDYES ? kHonorInternals : 0)
        | (hidLines == IDYES ? kShowAll : 0)
        | (meshSils == IDYES ? kMeshSilhouettes : 0)
        | (unit == IDYES ? kUnite : 0)
    ) ;
    hlr.setAcisConversionProgressCallBack (progress1) ;
    hlr.setAhlProgressCallBack (progress2) ;
    hlr.setAcadConversionProgressCallBack (progress3) ;

    acedSetStatusBarProgressMeter (ACRX_T("HLR running: "), 0, 300) ;
    hlr.run (collector) ;
    acedRestoreStatusBar () ;

    //----- Assign color to the resulting entities
    //----- red for visible edges
    //----- blue for non-visible edges
    //----- yellow for internal edges
    n =collector.mOutputData.logicalLength () ;
    for (int i =0 ; i < n ; i++ ) {
        AsdkHlrData *p =collector.mOutputData [i] ;

        AcDbEntity *pEnt =p->getResultEntity () ;
        AsdkHlrData::Visibility vis =p->getVisibility () ;
        if ( vis == AsdkHlrData::kVisible ) {
            pEnt->setColorIndex (1) ; //----- Read
        } else if ( vis == AsdkHlrData::kInternallyHidden ) {
            if ( p->getHlrVisibility () == AsdkHlrData::kVisible )
                pEnt->setColorIndex (2) ; //----- Yellow
            else
                pEnt->setColorIndex (3) ; //----- Green
        } else {
            pEnt->setColorIndex (5) ; //----- Blue
        }

        if ( postToDatabase (NULL, pEnt, id) != Acad::eOk ) {
            acutPrintf (_T("Failed to add entity to current space.\n")) ;
            break ;
        }
        if ( acdbOpenAcDbEntity (pEnt, id, AcDb::kForRead) != Acad::eOk ) {
            acutPrintf (_T("Failed to open last added outputed curve.\n")) ;
            break ;
        }

        //----- Entity originator path for block reference entities
        AcDbObjectIdArray ids =p->getObjectIds () ;
        if ( ids.logicalLength () > 0 ) {
            acutPrintf (ACRX_T("\n%lx, "), pEnt->objectId ().asOldId ()) ;
            if ( p->getSubentId ().type () != AcDb::kNullSubentType )
                acutPrintf (ACRX_T("[%ld, %ld], "), p->getSubentId ().type (), p->getSubentId ().index ()) ;
            for ( int j =0 ; j < ids.logicalLength () ; j++ )
                acutPrintf (ACRX_T("%lx, "), ids.at (j).asOldId ()) ;
            AcDbObjectId id =ids.last () ;
            if ( !id.isNull () ) {
                AcDbEntity *ent =NULL ;
                acdbOpenAcDbEntity (ent, id, AcDb::kForRead) ;
                id =ent->linetypeId () ;
                ent->close () ;
                if ( pEnt->upgradeOpen () == Acad::eOk )
                pEnt->setLinetype (id) ;
            }
        }

        pEnt->close () ;
    }
}
// This command demonstrates the use of kCleanup / kReuse flags
void AddEntityToLayer (AsdkHlrCollector &collector, ACHAR *layerName) {
    //----- Check layer
    if ( layerName != NULL && *layerName != ACRX_T('\0') ) {
        AcDbDatabase *pDb =acdbHostApplicationServices ()->workingDatabase () ;
        AcDbLayerTable *pLayerTable ;
        pDb->getLayerTable (pLayerTable, AcDb::kForRead) ;
        if ( !pLayerTable->has (layerName) ) {
            AcDbLayerTableRecord *pLayerRecord =new AcDbLayerTableRecord ;
            pLayerRecord->setName (layerName) ;
            pLayerTable->upgradeOpen () ;
            pLayerTable->add (pLayerRecord) ;
            pLayerTable->downgradeOpen () ;
            pLayerRecord->close () ;
            pLayerTable->close () ;
            applyCurDwgLayerTableChanges () ;
        } else {
            pLayerTable->close () ;
        }
    } else {
        layerName =NULL ;
    }
    //----- Assign color to the resulting entities
    //----- red for visible edges
    //----- blue for non-visible edges
    //----- yellow for internal edges
    int n =collector.mOutputData.logicalLength () ;
    for ( int i =0 ; i < n ; i++ ) {
        AsdkHlrData *p =collector.mOutputData [i] ;

        AcDbEntity *pEnt =p->getResultEntity () ;
        AsdkHlrData::Visibility vis =p->getVisibility () ;
        if ( vis == AsdkHlrData::kVisible ) {
            pEnt->setColorIndex (1) ; //----- Read
        } else if ( vis == AsdkHlrData::kInternallyHidden ) {
            if ( p->getHlrVisibility () == AsdkHlrData::kVisible )
                pEnt->setColorIndex (2) ; //----- Yellow
            else
                pEnt->setColorIndex (3) ; //----- Green
        } else {
            pEnt->setColorIndex (5) ; //----- Blue
        }
        if ( layerName != NULL )
            pEnt->setLayer (layerName) ;
        AcDbObjectId id ;
        if ( postToDatabase (NULL, pEnt, id) != Acad::eOk ) {
            acutPrintf (_T("Failed to add entity to current space.\n")) ;
            break ;
        }

        //----- Entity originator path for block reference entities
        AcDbObjectIdArray ids =p->getObjectIds () ;
        if ( ids.logicalLength () > 0 ) {
            acutPrintf (ACRX_T("\n%ld, "), pEnt->objectId ().asOldId ()) ;
            for ( int j =0 ; j < ids.logicalLength () ; j++ ) {
                acutPrintf (ACRX_T("%ld, "), ids.at (j).asOldId ()) ;
            }
        }

        pEnt->close () ;
    }
}
void asdktest3 () {
    //----- Create a line and a circle (memory only)
    AcDbLine *pLine =new AcDbLine (AcGePoint3d (), AcGePoint3d (100, 100, -100)) ;
    AcDbCircle *pCircle =new AcDbCircle (AcGePoint3d (50, 50, 0), AcGeVector3d (0, 0, 1) , 25.0) ;

    //----- Create a region from the circle
    AcDbVoidPtrArray arr1, arr2 ;
    arr1.append (pCircle) ;
    AcDbRegion::createFromCurves (arr1, arr2) ;
    AcDbRegion *pRegion =(AcDbRegion *)arr2.at (0) ;
    delete pCircle ;

    //----- Add the line and the region objects to the collector
    //----- NB: Remember those object are memory objects only
    AsdkHlrCollector collector ;
    collector.setDeleteState (true) ;
    collector.addEntity (pLine) ;
    collector.addEntity (pRegion) ;

    //----- Process hidden line removal
    AsdkHlrEngine hlr (AcGePoint3d (50, 50,0), AcGeVector3d (0, 0, 1), kEntity | kBlock | kShowAll | kProject | kHonorInternals) ;
    hlr.run (collector) ;

    //----- To easily see the result, we do append resulting entities to the current database
    //----- and use the color convention used in command 'TEST1'
    int n =collector.mOutputData.logicalLength () ;
    for ( int i =0 ; i < n ; i++ ) {
        AsdkHlrData *p =collector.mOutputData [i] ;

        AcDbEntity *pEnt =p->getResultEntity () ;
        AsdkHlrData::Visibility vis =p->getVisibility () ;
        if ( vis == AsdkHlrData::kVisible )
            pEnt->setColorIndex (1) ;
        else
            pEnt->setColorIndex (5) ;
        AcDbObjectId id ;
        if ( postToDatabase (NULL, pEnt, id) != Acad::eOk ) {
            acutPrintf (_T("Failed to add entity to current space.\n")) ;
            break ;
        }

        //----- Entity originator path
        AcDbObjectIdArray ids =p->getObjectIds () ;
        if ( ids.logicalLength () > 0 ) {
            acutPrintf (ACRX_T("\n%ld, "), pEnt->objectId ().asOldId ()) ;
            for ( int j =0 ; j < ids.logicalLength () ; j++ ) {
                acutPrintf (ACRX_T("%ld, "), ids.at (j).asOldId ()) ;
            }
        }

        pEnt->close () ;
    }
}