Topmarks and Daymarks

The tags defined on this page will render in various nautical charts.

This page defines values for the "seamark:topmark:shape" and "seamark:daymark:shape" tags and other attributes applied to these objects.

Shape (TOPSHP)	seamark:topmark:shape seamark:daymark:shape	Usage
Solid cone with vertex uppermost	cone, point up	Starboard lateral marks
Solid cone with vertex lowermost	cone, point down	Port lateral marks
Single sphere	sphere	Safe water marks
Two spheres mounted one above the other	2 spheres	Isolated danger marks
Cylinder (can) mounted vertically	cylinder	Lateral port marks
Rectangular board	board
Cross mounted with arms diagonally	x-shape	Special purpose marks
Cross mounted with arms horizontal and vertical	cross	Wrecks
Cube mounted with a vertex uppermost	cube, point up
Two vertical cones with their vertices adjacent	2 cones point together	West cardinal marks
Two vertical cones with their bases adjacent	2 cones base together	East cardinal marks
Rhombus (diamond)	rhombus
Two vertical cones with both vertices uppermost	2 cones up	Cardinal north marks
Two vertical cones with both vertices lowermost	2 cones down	Cardinal south marks
Bundle of twigs tied at top	besom, point up	Lateral starboard perch
Bundle of twigs tied at bottom	besom, point down	Lateral port perch
	flag
	sphere over rhombus
Equilateral rectangle with sides horizontal and vertical	square
	rectangle, horizontal
	rectangle, vertical
	trapezium, up
	trapezium, down
Triangle with vertex uppermost	triangle, point up
Triangle with vertex lowermost	triangle, point down
	circle
	2 upright crosses
	t-shape
	triangle, point up over circle
	upright cross over circle
	rhombus over circle
	circle over triangle, point up
	other