Difference between revisions of "Hex Number"

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A [[Hex Number]] is located within an [[Astrographic Hex]] is a visual device representing the center point of a [[star system ]]or set of [[polystellar star system]]s used for travelling between [[mainworld]]s or other point of interest.
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[[File:Imperial-Sunburst-Sun-Scouts-wiki.png|250px|right]]
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* An [[astrographic]] hex is located within an idealized yet hypothetical set of 3D coordinate cubes radiating out from the [[Imperial Encyclopediopolis]] on [[Reference (world)]]. Encyclopediopolus represents the coordinate location of x: 0, y: 0, and z: 0.
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A [[Hex Number]] is a unique identifier for a location of a hex in the subsector, quadrant or sector maps.  
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* Charted Space (Traveller) astrographic maps use grids of hexagons, usually referred to as [[astrographic hex]]es or simply "hexes." Each hex is assigned a number in a sequence.
 
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* This number can vary, depending of the type of map being used.
 
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* The purpose of the hex location number is to enable players and Referees/GMs to quickly locate star systems on a map.
 
  
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== Description ([[Specifications]]) ==
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The mapping convention for a sector is a grid of 32 x 40 hexes, a quadrant is 16 x 20 hexes, and a subsector is 8 x 10 hexes. Each hex is given a number consisting of the horizontal position (number from 1 to the number of hexes) followed by the vertical position (numbered from 1 to the number of hexes). These numbers are given a leading 0, so both positional numbers are two digits. The starting position is always in the upper left corner of the map.  
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No information yet available.  
 
  
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''Hexes:'' Each hex is 3.26 light years across, from each flat edge to the opposite flat edge. Starships can [[Jump]] the number of hexes equivalent to the [[Jump Drive]] rating of the ship (Jump-1, Jump-2, etc).
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For example, the hex number in the upper left corner is always "0101", with the hex immediately below it is "0102", and the hex to the right would be "0201". The hex number in the bottom right of a subsector would be "0810", in a quadrant would be "1620", and in a sector would be "3240".  
  
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===Subsector Maps===
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== Sector Mapping hex numbers ==
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A subsector is an area of space. A subsector map consists of eight columns of 10 hexes.  The first column (which begins at the top left corner of the map) is numbered 0101, 0102, 0103, and so on, down the bottom of the map, with the last hex in the 01 column numbered as 0110. This format is repeated across all eight columns, beginning again at the top of the map. Thus the first hex in the next column is numbered 0201. The last hex of the subsector map (in the bottom right corner of the map) is numbered 0810.
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Because a sector consists of either 4 quadrants or 16 subsectors, it is frequently the case the hex numbers presented in the quadrants or subsectors of a given sector are numbered based upon their position within the sector.  
  
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By convention, when a single subsector map is shown, it is numbered using the system described above.
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For example, Subsector E would have the upper left corner hex as "0111", and the Subsector F would have the upper left corner hex as "0911".
  
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===Sector Maps===
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When presenting these smaller map units as part of a large grouping, the sector hex numbering scheme is frequently applied.  
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A sector map is composed of 16 subsectors, arranged as four rows of four subsectors. Sector hex location numbers differ slightly from the system used for subsectors, in that the numbers continue beyond the "end" of each subsector in a sequential manner. Thus, the first hex of a sector map (located at the top left corner of the map) is still numbered 0101; however, the 01 column continues to be sequentially numbered into the subsector below. Thus, the first hex in the 01 column of the subsector below the top left subsector in the sector map is numbered 0111, the next hex is numbered 0112, then 0113, and so on. Each column of hexes in a sector map begins at xx01 and ends at xx40.
 
  
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This extension of the numbering system also applies to the column numbers. Instead of each subsector having columns of hexes numbered from 01 to 08, the first column of the second subsector in the first row of the sector is numbered 09, the next 10, then 11, up to 32.
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== Scale ==
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By convention each hex in the astrographic map is approximately 1 [[Parsec]] across. Which, by the geometry of hexagons, means they are 1 parsec from center to center. This makes distance calculations simple (just count the hexes). The size of the hex matches the [[Jump Drive]] ratings, in order to make the calculation of possible destinations as simple as possible.  
  
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This means that the first hex in a sector map is nmbered 0101 (at the top left corner of the map) and the last hex is numbered 3240 (at the bottom right corner of the map).
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== Conventions ==
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Depending on the scale of the map each hex may or may not have an explicit hex number present on the map. In some maps only the hexes containing system have an explicit number in them, in large scale maps every hex may have a number in it.  
  
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== History & Background (Dossier) ==
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== See also ==
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No information yet available.
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{{Referral-Tree-U-Universal-World-Profile}}
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===Current Hex Numbering Convention===
 
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Many current supplements for Traveller (including those produced for use with [[GURPS Traveller]]) do not number hexes if a star system is not present at a hex location. Only those hexes that contain a star system are numbered, and most supplements use the sector hex location number system, even when showing only a single subsector of the sector.
 
  
 
== References & Contributors ([[Sources]]) ==
 
== References & Contributors ([[Sources]]) ==
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{{Source}}
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{{Intermediate}}
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{{Sources
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}}
  
 
[[Category: Game Terms]]
 
[[Category: Game Terms]]
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{{LE|Astrography}}
 
 
{{MET|Astrography|Game Mechanic|Terminology}}
 
{{MET|Astrography|Game Mechanic|Terminology}}

Latest revision as of 18:13, 5 September 2020

Imperial-Sunburst-Sun-Scouts-wiki.png

A Hex Number is a unique identifier for a location of a hex in the subsector, quadrant or sector maps.

The mapping convention for a sector is a grid of 32 x 40 hexes, a quadrant is 16 x 20 hexes, and a subsector is 8 x 10 hexes. Each hex is given a number consisting of the horizontal position (number from 1 to the number of hexes) followed by the vertical position (numbered from 1 to the number of hexes). These numbers are given a leading 0, so both positional numbers are two digits. The starting position is always in the upper left corner of the map.

For example, the hex number in the upper left corner is always "0101", with the hex immediately below it is "0102", and the hex to the right would be "0201". The hex number in the bottom right of a subsector would be "0810", in a quadrant would be "1620", and in a sector would be "3240".

Sector Mapping hex numbers[edit]

Because a sector consists of either 4 quadrants or 16 subsectors, it is frequently the case the hex numbers presented in the quadrants or subsectors of a given sector are numbered based upon their position within the sector.

For example, Subsector E would have the upper left corner hex as "0111", and the Subsector F would have the upper left corner hex as "0911".

When presenting these smaller map units as part of a large grouping, the sector hex numbering scheme is frequently applied.

Scale[edit]

By convention each hex in the astrographic map is approximately 1 Parsec across. Which, by the geometry of hexagons, means they are 1 parsec from center to center. This makes distance calculations simple (just count the hexes). The size of the hex matches the Jump Drive ratings, in order to make the calculation of possible destinations as simple as possible.

Conventions[edit]

Depending on the scale of the map each hex may or may not have an explicit hex number present on the map. In some maps only the hexes containing system have an explicit number in them, in large scale maps every hex may have a number in it.

See also[edit]

Universal world profile[edit]

§ == ( Please refer to the following AAB Library Data for more information: ) == §

References & Contributors (Sources)[edit]

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.
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