Difference between revisions of "Module:Convert/extra/sandbox"

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blackwiki>Johnuniq
(unit "pitch" has defkey + linkey for the default and link exceptions table so it does the "µm" symbol will not be used as that conflicts with micrometer)
blackwiki>Johnuniq
(empty because the new units are in main data)
Line 18: Line 18:
  
 
local extra_units = {
 
local extra_units = {
["dpi"] = {
 
name1    = "DPI",
 
name2    = "DPI",
 
symbol  = "DPI",
 
utype    = "length",
 
invert  = -1,
 
iscomplex= true,
 
scale    = 1/0.0254,
 
default  = "pitch",
 
link    = "Dots per inch",
 
},
 
-- the convention is that resolution appears as simply micrometers dimensionally
 
-- see Digital Photogrammetry: A Practical Course by Wilfried Linder
 
["pitch"] = {
 
name1    = "µm",
 
name2    = "µm",
 
symbol  = "µm",
 
utype    = "length",
 
scale    = 1e-6,
 
default  = "dpi",
 
defkey  = "pitch",
 
linkey  = "pitch",
 
link    = "Dots per inch",
 
},
 
["dpcm"] = {
 
name1    = "dot/cm",
 
name2    = "dot/cm",
 
symbol  = "dot/cm",
 
utype    = "length",
 
invert  = -1,
 
iscomplex= true,
 
scale    = 1/0.01,
 
default  = "dpi",
 
link    = "Dots per inch",
 
},
 
["isp"] = {
 
name1    = "second",
 
name2    = "seconds";
 
symbol  = "s",
 
utype    = "speed",
 
scale    = 9.80665,
 
default  = "km/s",
 
link    = "Specific impulse",
 
},
 
-- from F=ma, Ns/kg is equivalent to units of speed
 
-- which is fortunate because convert couldn't handle it otherwise
 
["Ns/kg"] = {
 
name1    = "N-s/kg",
 
name2    = "N-s/kg";
 
symbol  = "N-s/kg",
 
utype    = "speed",
 
scale    = 1,
 
default  = "isp",
 
link    = "Specific impulse",
 
},
 
["kNs/kg"] = {
 
name1    = "kN-s/kg",
 
name2    = "kN-s/kg";
 
symbol  = "kN-s/kg",
 
utype    = "speed",
 
scale    = 1000,
 
default  = "isp",
 
link    = "Specific impulse",
 
},
 
-- units of inverse speed, because invert is negative
 
["si tsfc"] = {
 
name1    = "g/(kN·s)",
 
name2    = "g/(kN·s)",
 
symbol  = "g/(kN·s)",
 
utype    = "speed",
 
invert  = -1,
 
iscomplex= true,
 
scale    = 1/101972/9.80665,
 
default  = "tsfc",
 
link    = "Thrust specific fuel consumption",
 
},
 
-- units of inverse speed, because invert is negative
 
["tsfc"] = {
 
name1    = "lb/(lbf·h)",
 
name2    = "lb/(lbf·h)",
 
symbol  = "lb/(lbf·h)",
 
utype    = "speed",
 
invert  = -1,
 
iscomplex= true,
 
scale    = 1/9.80665/3600,
 
default  = "si tsfc",
 
link    = "Thrust specific fuel consumption",
 
},
 
 
}
 
}
  
 
return { extra_units = extra_units }
 
return { extra_units = extra_units }

Revision as of 01:06, 4 January 2014

Documentation for this module may be created at Module:Convert/extra/sandbox/doc

-- Extra conversion data used by Module:Convert.
--
-- [[Module:Convert/data]] defines all units and is transcluded in all pages
-- where [[Module:Convert]] is used. Testing new units by editing that module
-- would invalidate the cache for all affected pages.
--
-- For quick changes and experiments with new units, this module can be edited.
-- Since this module is transcluded in only a small number of pages, changes
-- should cause little server overhead and should propagate quickly.
--
-- If a unit is defined in the data module, any definition here is ignored,
-- so defining the same unit in both modules is not an error.
-- A unit defined here can refer to units that are also defined here, and
-- can refer to units defined in the data module.
--
-- Periodically, those extra units that are wanted permanently can be removed
-- from here after being added to [[Module:Convert/data]].

local extra_units = {
}

return { extra_units = extra_units }