export const SQRT_2 = Math . sqrt ( 2 ) ; export const SQRT_3 = Math . sqrt ( 3 ) ; export const ISO_NONE = 0b0000 ; export const ISO_LEFT = 0b0001 ; export const ISO_RIGHT = 0b0010 ; export const ISO_VERTICAL = 0b0100 ; export const ISO_HORIZONTAL = 0b1000 ; export const ISO_DEFAULT_SPACING = 40 ; export const ISO_DEFAULT_ORIENTATION = ISO_VERTICAL | ISO_RIGHT ; export const ISO_DEFAULT_SIDE_COLOR = "grey" ; export const ISO_DEFAULT_TOP_COLOR = "lightgrey" ;