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EA:  TOPMARK_SHAPE

Status: STD 2005/06/07
Code: 1450
Concept definition: The shape of a <TOPMARK>.
 
Attribute value type: ENUMERATION
Reference type: IR
Reference: [FACC, Annex B: TOP]
Supplemental references:  
Enumerants (presented in a natural order)
Status Attribute label Enumerant label ▾ Concept definition Code Ref type Reference Supplemental references
STD
2005/06/07		 TOPMARK_SHAPE BESOM_POINT_DOWN A besom attached to the top of a <POLE> placed on top of a <BUOY>, mass of <ROCK> or <SHOAL> as a mark for navigation; besom point down. 1 IR [S57A, Attribute, TOPSHP:16] [FACC, Annex B, TOP:16]
STD
2005/06/07		 TOPMARK_SHAPE BESOM_POINT_UP A <POLE> attached to the top of a besom placed on top of a <BUOY>, mass of <ROCK> or <SHOAL> as a mark for navigation; besom point up. 2 IR [S57A, Attribute, TOPSHP:15] [FACC, Annex B, TOP:15]
STD
2005/06/07		 TOPMARK_SHAPE BOARD A board, usually of rectangular shape, made from timber or metal and used to provide a contrast with the natural background of a daymark. The actual daymark is often painted on this board. 3 PR [S57A, Attribute, TOPSHP:6] [FACC, Annex B, TOP:6]
STD
2005/06/07		 TOPMARK_SHAPE CONE_POINT_DOWN A cone where the vertex points down. Cones are commonly used to signify a lateral mark. 4 IR [S57A, Attribute, TOPSHP:2]  
STD
2005/06/07		 TOPMARK_SHAPE CONE_POINT_UP A cone where the vertex points up. Cones are commonly used to signify a lateral mark. 5 IR [S57A, Attribute, TOPSHP:1]  
STD
2005/06/07		 TOPMARK_SHAPE CROSS_SHAPED Cross shaped. 6 IR [FACC, Annex B, TOP:8]  
STD
2005/06/07		 TOPMARK_SHAPE CUBE_POINT_UP A cube standing on one of its vertices (point up). 7 PR [S57A, Attribute, TOPSHP:9]  
STD
2005/06/07		 TOPMARK_SHAPE CYLINDER A cylinder. 8 PR [S57A, Attribute, TOPSHP:5]  
STD
2005/06/07		 TOPMARK_SHAPE RHOMBUS A rhombus. 9 PR [S57A, Attribute, TOPSHP:12]  
STD
2005/06/07		 TOPMARK_SHAPE SPHERE A sphere, commonly used to signify safe <WATER>. 10 IR [S57A, Attribute, TOPSHP:3]  
STD
2005/06/07		 TOPMARK_SHAPE TWO_CONES_BASE_TO_BASE Two cones, one above the other, with their bases together in the centre and their vertices pointing up and down. 11 PR [S57A, Attribute, TOPSHP:11]  
STD
2005/06/07		 TOPMARK_SHAPE TWO_CONES_POINTS_DOWNWARD Two cones points downward. 13 IR [FACC, Annex B, TOP:14]  
STD
2005/06/07		 TOPMARK_SHAPE TWO_CONES_POINTS_UPWARD Two cones points upward. 14 IR [FACC, Annex B, TOP:13]  
STD
2005/06/07		 TOPMARK_SHAPE TWO_CONES_POINT_TO_POINT Two cones, one above the other, with their vertices (points) together in the centre. 12 PR [S57A, Attribute, TOPSHP:10]  
STD
2005/06/07		 TOPMARK_SHAPE TWO_SPHERES Two black spheres, commonly used to signify an isolated danger. 15 IR [S57A, Attribute, TOPSHP:4]  
STD
2005/06/07		 TOPMARK_SHAPE X_SHAPED Having a shape or a cross-section like the capital letter "X"; if an IALA topmark, should be 3 dimensional in shape and made of at least three crossed bars. 16 IR [S57A, Attribute, TOPSHP:7]  
Group membership:

In addition to the status and date information for each entry, a colour coding scheme highlights the database holding to which an entry belongs. The following highlight colours are used:

  • white - the entry is in the standard
  • yellow - the entry has been added to the register
  • pink - the entry has been submitted for inclusion in the register, but it is not approved
  • cyan - a deprecated entry that was originally either in the standard or was added to the register, but has since been deprecated

The following icons are used to identify items that have figures, modifications and/or clarification notes:

  • F n - has Figures and, if more than one figure, n figures
  • M - has Modifications
  • C - has Clarifications

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