Seamarks/Topmarks and Daymarks

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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
Usage Rendering
Solid cone with vertex uppermost cone, point up Starboard lateral marks Top CU.png
Solid cone with vertex lowermost cone, point down Port lateral marks Top CD.png
Single sphere sphere Safe water marks Top SR.png
Two spheres mounted one above the other 2 spheres Isolated danger marks Top ID.png
Cylinder (can) mounted vertically cylinder Lateral port marks Top LP.png
Rectangular board board Top BD.png
Cross mounted with arms diagonally x-shape Special purpose marks Top XS.png
Cross mounted with arms horizontal and vertical cross Wrecks Top CR.png
Cube mounted with a vertex uppermost cube, point up
Two vertical cones with their vertices adjacent 2 cones point together West cardinal marks Top CW.png
Two vertical cones with their bases adjacent 2 cones base together East cardinal marks Top CE.png
Rhombus (diamond) rhombus Top RH.png
Two vertical cones with both vertices uppermost 2 cones up Cardinal north marks Top CN.png
Two vertical cones with both vertices lowermost 2 cones down Cardinal south marks Top CS.png
Bundle of twigs tied at top besom, point up Lateral starboard perch Top BPU.png
Bundle of twigs tied at bottom besom, point down Lateral port perch Top BPD.png
sphere over rhombus
Equilateral rectangle with sides horizontal and vertical square Top SQ.png
rectangle, horizontal
rectangle, vertical
trapezium, up
trapezium, down
Triangle with vertex uppermost triangle, point up Top TU.png
Triangle with vertex lowermost triangle, point down Top TD.png
2 upright crosses
triangle, point up over circle
upright cross over circle
rhombus over circle
circle over triangle, point up

Other Attributes

Attribute seamark:topmark:<attribute>
Wiki Page
Colour (COLOUR) colour Colours
Colour Pattern (COLPAT) colour_pattern Colours
Attribute seamark:daymark:<attribute> Wiki Page
Category (CATSPM) category Special Purpose Marks


Seamark Tag Values
Seamark Objects
Seamark Attributes
INT-1 Cross Reference