Method init

source/MRMesh/MRBoxNesting.cpp:431–435

        {
        };
        virtual void init( const Box3f& thisBox ) override
        {
            pos_ = Vector3i( thisBox.min / quantSize_ );
            commonBox_ = thisBox;
        }
        virtual void addNested( const Box3f& box ) override
        {
            commonBox_.include( box );