76 lines
1.2 KiB
Lua
76 lines
1.2 KiB
Lua
-- Symbol names
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local names_npn =
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{
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en = "NPN transistor",
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cs = "Tranzistor NPN",
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sk = "Tranzistor NPN"
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}
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local names_pnp =
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{
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en = "PNP transistor",
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cs = "Tranzistor PNP",
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sk = "Tranzistor PNP"
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}
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-- Render area in base units (X1, Y1, X2, Y2)
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local area = {-2, -2, 2, 2}
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-- Terminal points
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local terminals = {{-2, 0}, {2, 2}, {2, -2}}
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-- Rendering
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local render = function (cr)
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-- The terminals
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cr.move_to (-2, 0)
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cr.line_to (0, 0)
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cr.move_to (0, 0.5)
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cr.line_to (2, 2)
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cr.move_to (0, -0.5)
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cr.line_to (2, -2)
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-- The ohmic connection
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cr.move_to (0, -1)
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cr.line_to (0, 1)
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cr.stroke ()
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end
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local render_npn = function (cr)
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render (cr)
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cr.save ()
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cr.translate (0, 0.5)
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cr.rotate (math.atan2 (-2, 1.5))
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cr.move_to (-0.4, 0.8)
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cr.line_to (0, 1.4)
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cr.line_to (0.4, 0.8)
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cr.stroke ()
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cr.restore ()
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end
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local render_pnp = function (cr)
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render (cr)
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cr.save ()
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cr.translate (2, -2)
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cr.rotate (math.atan2 (2, 1.5))
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cr.move_to (-0.4, 1.3)
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cr.line_to (0, 1.9)
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cr.line_to (0.4, 1.3)
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cr.stroke ()
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cr.restore ()
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end
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-- Register the symbols
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logdiag.register ("NPN", names_npn, area, terminals, render_npn)
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logdiag.register ("PNP", names_pnp, area, terminals, render_pnp)
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