Module:Convert/extra/doc
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< Module:Convert | extra
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This module can be used to quickly add a new unit for use with {{convert}}. When satisfied that a unit is working correctly, ask at Module talk:Convert for the unit to be moved to the permanent list of units.
See Template:Convert/unit sandbox for a good way to prepare unit definitions that can be copied into this page.
The following extracts from Module:Convert/data show examples that could be used to define a new unit. Any number of spaces can be used where blanks are shown in the following.
<syntaxhighlight lang="lua" highlight="1"> -- These are EXAMPLES on the documentation page. Scroll down to see the module content. local extra_units = {
-- Similar to a redirect: "sqm" is an alias for "m2". -- Template:Convert → 1.5 square meters (16 sq ft) -- Template:Convert → 1.5 square meters (16 sq ft) ["sqm"] = { target = "m2", }, -- A simple unit, showing the minimum that is required. -- The "ha" is the unit code used to identify the unit: -- Template:Convert → 1.5 hectares (3.7 acres) ["ha"] = { name1 = "hectare", symbol = "ha", utype = "area", scale = 10000, default = "acre", }, -- A unit which accepts an SI prefix. There is no "name1" field because it -- has to be constructed (mJ gives "millijoule"; MJ gives "megajoule"). -- Template:Convert → 125 kilojoules (30,000 cal) ["J"] = { _name1 = "joule", _symbol = "J", utype = "energy", scale = 1, prefixes = 1, default = "cal", link = "Joule", }, -- A unit where US and plural names are required. -- Template:Convert → 125 centimetres per second squared (4.1 ft/s²) ["cm/s2"] = { name1 = "centimetre per second squared", name1_us = "centimeter per second squared", name2 = "centimetres per second squared", name2_us = "centimeters per second squared", symbol = "cm/s2", utype = "acceleration", scale = 0.01, default = "ft/s2", link = "Gal (unit)", }, -- A "per" unit is defined as the ratio of two other units. -- Template:Convert → 125 grams per cubic centimetre (4.5 lb/cu in) ["g/cm3"] = { per = { "g", "cm3" }, utype = "density", default = "lb/cuin", }, -- If the automatic "per" link is not wanted, a link can be specified. -- Template:Convert → grams per cubic centimetre -- Template:Convert → grams per cubic metre ["g/m3"] = { per = { "g", "m3" }, utype = "density", default = "lb/cuyd", link = "density", }, -- Characters "$" and "£" are recognized as currency symbols. -- Template:Convert → $125 per acre ($310/ha) ["$/acre"] = { per = { "$", "acre" }, utype = "cost $ per unit area", default = "$/ha", }, -- An output unit can be defined as a combination of existing units. -- Template:Convert → 2 hectares (220,000 sq ft; 20,000 m²) -- Any number of output units can be specified. -- NOTE: There may be no need to define a combination because a convert -- can specify the output by joining unit codes with "+": -- Template:Convert → 1.2 acres (52,000 sq ft; 5,800 sq yd; 4,900 m²) ["ft2 m2"] = { combination = { "ft2", "m2" }, utype = "area", }, -- An output unit can be defined using subunits (from least to most significant). -- Template:Convert → 90 inches (2 yd 1 ft 6 in) ["ydftin"] = { combination = { "in", "ft", "yd" }, multiple = { 12, 3 }, utype = "length", },
} </syntaxhighlight>
Field | Description |
---|---|
symbol |
Unit identifier used when abbr=on is in effect.
|
name1 |
Singular name of the unit used when abbr=off is in effect.
|
name2 |
Plural name of the unit; not required if it is the same as name1 plus "s".
|
name1_us |
Singular name when sp=us is in effect; not required if the same as name1 .
|
name2_us |
Plural name when sp=us is in effect; not required if the same as name1_us plus "s".
|
utype |
Unit type; must be exactly the same as the utype of any other unit used in a conversion.
|
scale |
Number of base units in the unit being defined. |
default |
Unit code of the default output used when no output unit is specified in a conversion. |
target |
Unit code of an existing unit (the unit being defined "redirects" to the existing unit). |
prefixes |
Use 1 if an SI prefix is accepted; 2 is used for m2 , and 3 is used for m3 .
|
link |
Article title used when lk=on is in effect; not required if it is the same as name1 .
|