topic Re: Base point in associative array in ObjectARX Forum

Base point in associative array

Anonymous — Wed, 10 Sep 2014 01:56:20 GMT

Hello !

I was created array entity by array command of autocad.I used LI command , return base point ,for example is A point. Then i edit it ; i set base point is a new value , and I used LI command , return base point is no change.How is base point ? How to get base point ? ( i used AcDbAssocArrayActionBody::getSourceBasePoint ,just return that A point )

Re: Base point in associative array

Alexander.Rivilis — Fri, 12 Sep 2014 17:41:14 GMT

Array (associative) is a sample of AcDbBlockReference class. So you have to use AcDbBlockReference::position method.

Re: Base point in associative array

Anonymous — Sat, 13 Sep 2014 02:16:31 GMT

Thanks for your reply !

But I just retrieve a point :AcGePoint3d(0,0,0) when used that method :

AcDbBlockReference::position

Re: Base point in associative array

Alexander.Rivilis — Sat, 13 Sep 2014 09:42:25 GMT

Without your's code I can not find bug in it. Compare two pictures:

Re: Base point in associative array

Alexander.Rivilis — Sat, 13 Sep 2014 10:05:42 GMT

Also this topic and sample can help you: http://forums.autodesk.com/t5/objectarx/associative-array/td-p/4343871

Re: Base point in associative array

Anonymous — Mon, 15 Sep 2014 01:49:39 GMT

Thanks you !

I want say about Array Path ; I changed continue base point but Geometry ( Base X , Base Y , Base Z) not changed!

Re: Base point in associative array

Alexander.Rivilis — Mon, 15 Sep 2014 13:42:26 GMT

Try to explain your's problem in more detail with code, images, dwg-file. Otherwise you'll never get help.

Re: Base point in associative array

Anonymous — Tue, 16 Sep 2014 02:06:26 GMT

I'm sorry ! This is my problem .User draw one array path

Source is a line : start point (X= 19.5580 Y= 11.8961 Z= 0.0000) ; end point ( X= 17.7793 Y= 8.2770 Z= 0.0000)

Path is a line : start point (X= 26.9032 Y= 12.3896 Z= 0.0000 ) ; end point ( X= 22.5554 Y= 7.5861 Z= 0.0000 )

Re: Base point in associative array

Anonymous — Tue, 16 Sep 2014 03:25:57 GMT

Now , i'll read that array path .

AcDbObjectId networkId = AssocUtils::getAssocNetwork(false, UtilFunctions::getBlockRecordId(ACDB_MODEL_SPACE));	
	if(networkId != AcDbObjectId::kNull)
	{				
		AcDbObjectPointer<AcDbAssocNetwork> pNetwork(networkId, kForRead);				
		if (pNetwork.openStatus() != eOk)
			return false;
		const AcDbObjectIdArray& actionsInNetwork = pNetwork->getActions();
		for (int nCount = 0; nCount < actionsInNetwork.length(); nCount++)
		{
			const AcDbObjectId& actionId = actionsInNetwork[nCount];
			if (actionId == AcDbObjectId::kNull)
				continue;
			AcDbObjectPointer<AcDbAssocAction> pAction(actionId, kForRead);
			if (pAction.openStatus() != eOk)
				continue;
			AcDbAssocAction *pAcation = pAction.object();
			AcDbObjectId id = pAcation->actionBody();
			AcDbHardOwnershipId OwnershipId (id);
			
			AcDbObjectPointer<AcDbObject>pObj(OwnershipId,AcDb::kForWrite);
			CString s = pObj->isA()->name();
			/////////////
			const AcDbAssocArrayActionBody *pArrayActionBody = AcDbAssocArrayActionBody::cast(pObj);
			const AcDbAssocArrayParameters *pArrayParameters = pArrayActionBody->parameters();
			AcDbObjectIdArray ids = pArrayActionBody->getSourceEntities();
			AcDbObjectPointer<AcDbEntity> pEnt(ids[0],AcDb::kForWrite);
			AcDbLine *pline = AcDbLine::cast(pEnt);
			AcGePoint3d startP = pline->startPoint();
			AcGePoint3d EndP = pline->endPoint();
			AcDbVertexRef vertexRef ;
			AcGePoint3d position;
			es = pArrayActionBody->getSourceBasePoint(vertexRef,position);



		}
	}

I get source entities .It is not origin source entities ! Because ( startP , EndP ) are other values .How do I can get correct source entities ?

Is correct the path to get AcDbAssocArrayActionBody ? It is begin at getAssocNetwork ,etc ...

And I get the base point (X= 22.5554 Y= 7.5861 Z= 0.0000) .Base point is position !

Temporary forget source entities is not correct . Now I'll redraw that array path .

AcDbLine *pPath = new AcDbLine(AcGePoint3d( 26.9032 , 12.3896 , 0.0000),AcGePoint3d(22.5554 ,  7.5861  ,  0.0000));
	AcDbLine *pSource = new AcDbLine(AcGePoint3d( 19.5580 ,  11.8961  ,   0.0000),AcGePoint3d(17.7793 ,  8.2770 ,  0.0000));
	AcDbObjectId idSource = UtilFunctions::postToDb(pSource);
	AcDbObjectId idPath = UtilFunctions::postToDb(pPath);
	AcDbObjectIdArray sourceEntites;
	sourceEntites.append(idSource);
	AcDbVertexRef basePoint(AcGePoint3d(22.555400,7.586100,0.000000));
	AcDbEdgeRef edge(pPath);

	double itemSpacing = 4; 
	double rowSpacing = 5.42865; 
	double levelSpacing = 1; 
	int itemCount = 2; 
	int rowCount = 1;
	int levelCount = 1;
	double rowElevation = 0;

	AcDbAssocArrayPathParameters *pPathParameters = new AcDbAssocArrayPathParameters(itemSpacing,rowSpacing,levelSpacing,
		itemCount,rowCount,levelCount,rowElevation);

	pPathParameters->setPath(edge);
	pPathParameters->setMethod(AcDbAssocArrayPathParameters::kMeasure);
	pPathParameters->setPathDirection(false);
	
	AcDbDatabase* pDb = acdbHostApplicationServices()->workingDatabase();
	Acad::ErrorStatus es ;
	AcDbObjectId arrayId; 
	AcDbObjectId actionBodyId;

	es = AcDbAssocArrayActionBody::createInstance (sourceEntites,basePoint,pPathParameters,arrayId,actionBodyId);
	bool k = AcDbAssocManager::evaluateTopLevelNetwork(pDb,NULL,0);

Code for UtilFunctions::postToDb

AcDbObjectId postToDb(AcDbEntity* pEnt)
{
	Acad::ErrorStatus es;
	AcDbObjectId objId;
	AcDbBlockTable* pBlockTable = NULL;	
	if (acdbCurDwg()->getBlockTable(pBlockTable, AcDb::kForRead)== Acad::eOk) 
	{
		AcDbBlockTableRecord*  pSpaceRecord = NULL;		
		CString mode =  acdbCurDwg()->tilemode() ? ACDB_MODEL_SPACE : ACDB_PAPER_SPACE ;
		es =  pBlockTable->getAt( ACDB_MODEL_SPACE,pSpaceRecord,AcDb::kForWrite);
		if (es == Acad::eOk) 
		{
			pEnt->setDatabaseDefaults(acdbCurDwg());
			pSpaceRecord->appendAcDbEntity(objId, pEnt);
			pEnt->close();
			pSpaceRecord->close();						
		}				
		pBlockTable->close();
	}	
	return objId;
}

Finally result : It is unlike with origin . Please explain to me , why is ?

Thanks you !

Re: Base point in associative array

Anonymous — Mon, 22 Sep 2014 02:59:23 GMT

Please help me ! This problem is difficult with me !