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-- Symbol names
local names =
{
en = "Diode",
cs = "Dioda",
sk = "Dióda",
pl = "Dioda",
de = "Diode"
}
local names_zener =
{
en = "Zener diode",
cs = "Zenerova dioda",
sk = "Zenerova dióda",
pl = "Dioda Zenera",
de = "Zenerdiode"
}
local names_led =
{
en = "Light-emitting diode",
cs = "Svítivá dioda",
sk = "Svietivá dióda",
pl = "Dioda świecąca",
de = "Lichtemittierende Diode"
}
local names_photo =
{
en = "Photodiode",
cs = "Fotodioda",
sk = "Fotodióda",
pl = "Fotodioda",
de = "Fotodiode"
}
-- Render area in base units (X1, Y1, X2, Y2)
local area = {-2, -1, 2, 1}
local area_rad = {-2, -2.5, 2, 1}
-- Terminal points
local terminals = {{-2, 0}, {2, 0}}
-- Rendering
local render = function (cr)
-- The triangle
cr:move_to (-1, -1)
cr:line_to (1, 0)
cr:line_to (-1, 1)
cr:close_path ()
-- The vertical line
cr:move_to (1, 1)
cr:line_to (1, -1)
-- The terminals
cr:move_to (-2, 0)
cr:line_to (2, 0)
cr:stroke ()
end
local render_zener = function (cr)
render (cr)
cr:move_to (1, 1)
cr:line_to (0.5, 1)
cr:stroke ()
end
local render_arrow = function (cr)
cr:move_to (0, 0)
cr:line_to (0, -1.5)
cr:stroke ()
cr:move_to (-0.3, -0.7)
cr:line_to (0, -1.5)
cr:line_to (0.3, -0.7)
cr:close_path ()
cr:fill ()
end
local render_radiation = function (cr)
cr:save ()
cr:translate (-0.4, 0)
render_arrow (cr)
cr:restore ()
cr:save ()
cr:translate (0.4, 0)
render_arrow (cr)
cr:restore ()
end
local render_led = function (cr)
render (cr)
cr:save ()
cr:translate (-0.3, -1.0)
cr:rotate (math.atan2 (1, 1))
render_radiation (cr)
cr:restore ()
end
local render_photo = function (cr)
render (cr)
cr:save ()
cr:translate (0.75, -2.05)
cr:rotate (math.atan2 (-1, -1))
render_radiation (cr)
cr:restore ()
end
-- Register the symbol
logdiag.register ("Diode", names, area, terminals, render)
logdiag.register ("DiodeZener", names_zener, area, terminals, render_zener)
logdiag.register ("DiodeLED", names_led, area_rad, terminals, render_led)
logdiag.register ("DiodePhoto", names_photo, area_rad, terminals, render_photo)
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