patch niche rcb issue

      }

    }

    //check if zero box width is the result due to dots being on box vertices

    //select half of the box in this case along the best dim

    //the best dim is chosen according to the optimum volume (to minimize surface area)

    if(largest==0.0){

      double best_volume=0;

      double current_volume;

      int dim1o,dim2o;

      for (dim = 0; dim < dimension; dim++){

        if(dim==0){

          dim1o=1;

          dim2o=2;

        }

        if(dim==1){

          dim1o=0;

          dim2o=2;

        }

        if(dim==2){

          dim1o=0;

          dim2o=1;

        }

        valuehalf = 0.5*(lo[dim] + hi[dim]);

        current_volume = (hi[dim1o]-lo[dim1o])

            *(hi[dim2o]-lo[dim2o])*(valuehalf-lo[dim]);

        //chose cut that minimizes surface area by maximizing volume;

        if(current_volume>best_volume){ best_volume = current_volume;

        valuehalf_select = valuehalf;

        dim_select = dim;

        }

      }

    }

    // copy results for best dim cut into dim,valuehalf,dotmark

    dim = dim_select;