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-- Symbol names
local names_ac =
{
en = "AC voltage source",
cs = "Střídavý zdroj napětí"
}
local names_dc =
{
en = "DC voltage source",
cs = "Stejnosměrný zdroj napětí"
}
-- Render area in base units (X1, Y1, X2, Y2)
local area = {-3, -2, 3, 2}
-- Terminal points
local terminals = {{-3, 0}, {3, 0}}
-- Rendering
local render = function (cr)
-- The circle
cr.arc (0, 0, 2, 0, math.pi * 2)
-- The terminals
cr.move_to (-3, 0)
cr.line_to (-2, 0)
cr.move_to (2, 0)
cr.line_to (3, 0)
cr.stroke ()
end
local render_ac = function (cr)
render (cr)
-- The AC symbol
cr.move_to (-1, 0.25)
cr.curve_to (-0.4, -1.5, 0.4, 1.5, 1, -0.25)
cr.stroke ()
end
local render_dc = function (cr)
render (cr)
-- The DC symbol
cr.move_to (-1, -0.25)
cr.line_to (1, -0.25)
cr.move_to (-1, 0.25)
cr.line_to (-0.2, 0.25)
cr.move_to (0.2, 0.25)
cr.line_to (1, 0.25)
-- Polarity sign
cr.move_to (2.6, -0.6)
cr.line_to (2.6, -1.4)
cr.move_to (2.2, -1)
cr.line_to (3.0, -1)
cr.stroke ()
end
-- Register the symbol
logdiag.register ("ACSource", names_ac, area, terminals, render_ac)
logdiag.register ("DCSource", names_dc, area, terminals, render_dc)
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