ReadonlycolumnsCells across each line.
ReadonlylinesLines of cells.
ReadonlydotDots down each cell: 4 for eight-dot braille, 3 for six-dot.
ReadonlypitchPins from the left edge of one cell to the left edge of the next.
ReadonlypitchPins from the top of one line to the top of the next.
How braille cells sit on a display whose pins are evenly spaced.
On such a display a braille cell is not a part of its own but a patch of the pin grid, and text needs space around each one: a blank column between cells, and a blank row between lines once there is room for it. A Monarch shows 32 cells across its 96 pins, so each cell is three pins wide and one of the three is always down.