Module:Sandbox/AlexNB/nmColor: Difference between revisions

Revision as of 20:31, 18 October 2013

Revision as of 20:47, 18 October 2013

Line 4:

local greenvalue = 0

local bluevalue = 0

local textforegroundcolor = 0

local function nm2RGB(wavelength)

Line 45 ⟶ 46:

greenvalue = greenvalue * intensityfactor

bluevalue = bluevalue * intensityfactor

end

local function luminance(r,g,b)

return 0.3*r+0.59*g+0.11*b

end

Line 57 ⟶ 62:

local wavelength = tonumber(frame.args[1])

nm2RGB(wavelength)

local result='#' .. string.format("%.2X%.2X%.2X", 255*(1-255*redvalue), 255*(1-255*greenvalue), 255*(1-255*bluevalue))

return result

end

function p.emission_label(frame)

local wavelength = tonumber(frame.args[1])

nm2RGB(wavelength)

if luminance(redvalue, greenvalue, bluevalue)>0.5 then

local result="#000000|#" .. string.format("%.2X%.2X%.2X", 255*redvalue, 255*greenvalue, 255*bluevalue)

else

local result="#FFFFFF|#" .. string.format("%.2X%.2X%.2X", 255*redvalue, 255*greenvalue, 255*bluevalue)

end

return result

end

function p.absorption_label(frame)

local wavelength = tonumber(frame.args[1])

nm2RGB(wavelength)

if luminance(1-redvalue, 1-greenvalue, 1-bluevalue)>0.5 then

local result="#000000|#" .. string.format("%.2X%.2X%.2X", 255*(1-redvalue), 255*(1-greenvalue), 255*(1-bluevalue))

else

local result="#FFFFFF|#" .. string.format("%.2X%.2X%.2X", 255*(1-redvalue), 255*(1-greenvalue), 255*(1-bluevalue))

end

return result

end