Mesh

Property	Default	Meaning
lim	[0, 1]	Directed domain used to place grid lines
ticks	5	Target count or explicit values / labeled pairs
interval	Automatic	Positive fixed tick step
direction	"x"	"x" draws vertical lines; "y" draws horizontal lines
stroke-width	em(1/16)	Grid thickness, relative to inherited font size

Grid lines at ticks using the count/explicit/interval rules of Axis. lim supplies the generation domain (default [0,1]).

direction="x" draws vertical lines at x values; direction="y" draws horizontal lines at y values. Mesh/HMesh default to x, VMesh to y: H/V names the scale direction. Ambient Graph limits map values. Style lines with stroke, stroke-width, stroke-dasharray, and opacity.