improve grid format truncation algorithm

src/grid_fmt.rs

@@ -335,17 +335,18 @@ fn fmt_array<T: GridFmt + ArrayValue>(shape: &[usize], data: &[T], metagrid: &mu
  metagrid.push(vec![vec![vec![' ']]]);
  return;
  }
- let shape = &shape[1..];
+ let row_shape = &shape[1..];
  let cell_size = data.len() / cell_count;
- let row_size: usize = shape.iter().take(shape.len().saturating_sub(1)).product();
+ let row_height: usize = row_shape.iter().rev().skip(1).product();
+ dbg!(row_height);
  for (i, cell) in data.chunks(cell_size).enumerate() {
  if i > 0 && rank > 2 {
  for _ in 0..rank - 2 {
  metagrid.push(vec![vec![vec![' ']]; metagrid.last().unwrap().len()]);
  }
  }
- fmt_array(shape, cell, metagrid);
- if i * row_size > 1000 {
+ fmt_array(row_shape, cell, metagrid);
+ if i * row_height >= 100 {
  let mut elipses_row = Vec::new();
  for prev_grid in metagrid.last().unwrap() {
  let prev_row = &prev_grid[0];