Sharing vectors between classes

[dubstar_04]

I have a pointcloud class that stores points:

class pointCloud : public QObject
{
    Q_OBJECT
public:
    explicit pointCloud(QObject *parent = 0);
 
signals:
 
public slots:
 
    void addPoint(float x, float y, float z);
 
private:
 
    struct point {
 
        float x;
        float y;
        float z;
 
    };
 
 
    std::vector<point> points;    
};

class pointCloud : public QObject
{
    Q_OBJECT
public:
    explicit pointCloud(QObject *parent = 0);
    
signals:
    
public slots:

    void addPoint(float x, float y, float z);

private:

    struct point {

        float x;
        float y;
        float z;

    };


    std::vector<point> points;    
};

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i create point cloud:

pointCloud pointcloud;

and filled the vector with points.

I now want to pass this vector to a QGLWidget for display.

Whats the best way to share this data?

Thanks,

Dubstar_04