[MMC15]

Hello everybody!

I'm quite new both to OpenFoam and C++ language.

My problem, actually, is to create a class in which I need to create an object belonging to the treeDataFace class. Then , on this object, I need to call a method of the indexedOctree class, which is already contained in treeDataFace.h file. I have some problems in making the class.

Here's the code:
1) header file

#include "treeDataFace.H"
...
namespace Foam {
class intersectionData {
public:
        intersectionData(const fvMesh &iMesh);
        ~intersectionData();
...
void findCellIntersctPts(point &ipStart, point &ipEnd, const fvMesh &iMesh);

        treeBoundBox allBb;
        scalar bbTol;

        indexedOctree<treeDataFace> faceTree(treeDataFace(const bool &f,const fvMesh &iMesh),treeBoundBox &allBb,int(a),int(b) ,double(c));
    };
}

2).cpp file

#include "intersectionData.h"
...
#include "polyMesh.H"
#include "meshTools.H"
#include "treeDataFace.H"

namespace Foam {
intersectionData::intersectionData(const fvMesh &iMesh)
    {
...
indexedOctree<treeDataFace> faceTree
        (
    treeDataFace(false,iMesh),
    allBb,
    8,
    10, 
    3.0 
         );
        }
intersectionData::~intersectionData() {}
void intersectionData::findCellIntersctPts(point &ipStart, point &ipEnd, const fvMesh &iMesh)
{
...
    point p0
    point p1 
{
        pointIndexHit pHit = faceTree.findLine(p0, p1);
...
}

}

Making the file, the terminal returns this error:

intersectionData.cpp: In member function ‘void Foam::intersectionData::findCellIntersctPts(Foam::point&, Foam::point&, const Foam::fvMesh&)’:
intersectionData.cpp:95:35: error: ‘((Foam::intersectionData*)this)->Foam::intersectionData::faceTree’ does not have class type
      pointIndexHit pHit = faceTree.findLine(p0, p1);

I think that the problem concerns the calling of the method findLine, that is a method of the inner class indexedOctree.

I don't know how resolve, thank you in advance for your help!

Regards from Italy!