[ARX程序]：请教XD：AcDbBlockRefence的插入的转换矩阵是什么？

梦宁

AcDbBlockRefence的插入的转换矩阵是什么，知道插入实体块的组成实体的相对坐标后怎样转换成INSERT示例上的点？谢谢！
下面是获得各个实体的点：
ads_name ss;
ads_point pt;
if(acedEntSel(NULL,ss,pt)!=RTNORM)
    return ;
AcDbObjectId ObjId;
acdbGetObjectId(ObjId,ss);
AcDbBlockReference *BlockRef;
acdbOpenObject(BlockRef,ObjId,AcDb::kForRead);
if(BlockRef!=NULL)
{
   AcDbObjectId id=BlockRef->blockTableRecord();
   AcDbBlockTableRecord *BlockRec;
   acdbOpenObject(BlockRec,id,AcDb::kForRead);
   if(BlockRec!=NULL)
   {
      AcDbBlockTableRecordIterator *pBlockIterator;
      BlockRec->newIterator(pBlockIterator);
      for(;!pBlockIterator->done();
                  pBlockIterator->step())
      {
        AcDbEntity *pEntity;
        pBlockIterator->getEntity(pEntity,AcDb::kForRead);
        AcDbCurve *pline;
        acdbOpenObject(pline,pEntity->objectId(),AcDb::kForRead);
        if(pline!=NULL)
        {//遍历块上所有实体的点
           AcGePoint3d ePt,sPt;
           pline->getStartPoint(sPt);
           pline->getEndPoint(ePt);
             CString Str,Str1;
           Str.Format("X=%f,Y=%f,Z=%f",ePt[X],ePt[Y],ePt[Z]);
        Str1.Format("\nX=%f,Y=%f,Z=%f",sPt[X],sPt[Y],sPt[Z]);
        Str+=Str1;
        AfxMessageBox(Str);
      }
      pline->close();
  }
}

XDSoft

AcGeBlockRefrence::blockTransform(...)见下面用法

AcGeMatrix3d

blockTransform() const;

Returns a matrix that describes the mapping from the block table record's MCS (the WCS within the block table record抯 microspace) out to the AcDbDatabase's WCS.
So, for example, applying this matrix to the center point value of a circle within the block table record will generate the center point of the circle as displayed for the block reference.

写程序前，多看看联机帮助，帮助是个宝库，一个类的所有方法都会找到，这个类里面没有找到，那就试试到基类去找。

XDSoft

得到转换矩阵后，把它作用到你的3D点（AcGePoint3d）上就可以了。

AcGePoint3d::transformBy(...)  见下面

AcGePoint3d&
transformBy(

    const AcGeMatrix3d& leftSide);

leftSide        Input transform matrix

Transform this pre-multiplying it the matrix mat.
Returns the reference to this point.
Result is the same as setToProduct(mat, *this).