109 lines
1.8 KiB
Lua
109 lines
1.8 KiB
Lua
-- Symbol name
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local names =
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{
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en = "Resistor",
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cs = "Rezistor",
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sk = "Rezistor",
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pl = "Rezystor",
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de = "Widerstand"
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}
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local names_adj =
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{
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en = "Adjustable resistor",
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cs = "Nastavitelný rezistor",
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sk = "Nastaviteľný rezistor",
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pl = "Rezystor zmienny",
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de = "Einstellwiderstand"
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}
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local names_pot =
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{
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en = "Potentiometer",
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cs = "Potenciometr",
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sk = "Potenciometer",
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pl = "Potencjometr",
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de = "Potentiometer"
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}
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-- Render area in base units (X1, Y1, X2, Y2)
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local area = {-2, -0.5, 2, 0.5}
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local area_adj = {-2, -1.5, 2, 1}
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local area_pot = {-2, -2, 2, 0.5}
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-- Terminal points
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local terminals = {{-2, 0}, {2, 0}}
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local terminals_pot = {{-2, 0}, {2, 0}, {2, -2}}
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-- Rendering
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local render = function (cr)
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-- The rectangle
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cr:move_to (-1.5, -0.5)
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cr:line_to (1.5, -0.5)
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cr:line_to (1.5, 0.5)
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cr:line_to (-1.5, 0.5)
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cr:line_to (-1.5, -0.5)
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-- The terminals
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cr:move_to (-2, 0)
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cr:line_to (-1.5, 0)
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cr:move_to (1.5, 0)
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cr:line_to (2, 0)
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cr:stroke ()
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end
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local render_adj = function (cr)
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render (cr)
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-- The arrow
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cr:move_to (-1, 1)
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cr:line_to (1, -1)
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cr:stroke ()
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cr:save ()
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cr:translate (1.5, -1.5)
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cr:rotate (math.atan2 (1, 1))
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cr:move_to (0, 0)
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cr:line_to (0.3, 0.8)
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cr:line_to (-0.3, 0.8)
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cr:close_path ()
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cr:fill ()
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cr:restore ()
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end
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local render_pot = function (cr)
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render (cr)
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-- The contact
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cr:move_to (0, -2)
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cr:line_to (2, -2)
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-- The arrow
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cr:move_to (0, -2)
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cr:line_to (0, -1)
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cr:stroke ()
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cr:move_to (0, -0.5)
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cr:line_to (0.3, -1.3)
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cr:line_to (-0.3, -1.3)
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cr:close_path ()
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cr:fill ()
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end
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-- Register the symbol
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logdiag.register ("Resistor",
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names, area, terminals, render)
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logdiag.register ("ResistorAdjustable",
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names_adj, area_adj, terminals, render_adj)
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logdiag.register ("Potentiometer",
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names_pot, area_pot, terminals_pot, render_pot)
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