get_square_grid: Specifies a square grid which fits N objects.
Description
The resulting grid will be of size a*a or a*(a+1) where a is an integer.
It will therefore always be a square or or have one row/column more than columns/rows.
Usage
get_square_grid(N, moreRows = TRUE)
Arguments
N
number of objects.
moreRows
whether there should be more rows than columns if the resulting grid is not square. Defaults to more rows (TRUE).
Value
A named list with elements rows and columns specifying the size of the optimal grid.