aboutsummaryrefslogtreecommitdiff
path: root/share/library/Passive/resistor.lua
blob: fdb164256e3ffd6010b19cc9e9eec5bb2f5ef74d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
-- Symbol name
local names =
{
	en = "Resistor",
	cs = "Rezistor",
	sk = "Rezistor",
	pl = "Rezystor",
	de = "Widerstand"
}

local names_adj =
{
	en = "Adjustable resistor",
	cs = "Nastavitelný rezistor",
	sk = "Nastaviteľný rezistor",
	pl = "Rezystor zmienny",
	de = "Einstellwiderstand"
}

local names_pot =
{
	en = "Potentiometer",
	cs = "Potenciometr",
	sk = "Potenciometer",
	pl = "Potencjometr",
	de = "Potentiometer"
}

-- Render area in base units (X1, Y1, X2, Y2)
local area     = {-2, -0.5, 2, 0.5}
local area_adj = {-2, -1.5, 2, 1}
local area_pot = {-2, -2, 2, 0.5}

-- Terminal points
local terminals     = {{-2, 0}, {2, 0}}
local terminals_pot = {{-2, 0}, {2, 0}, {2, -2}}

-- Rendering
local render = function (cr)
	-- The rectangle
	cr.move_to (-1.5, -0.5)
	cr.line_to (1.5, -0.5)
	cr.line_to (1.5, 0.5)
	cr.line_to (-1.5, 0.5)
	cr.line_to (-1.5, -0.5)

	-- The terminals
	cr.move_to (-2, 0)
	cr.line_to (-1.5, 0)

	cr.move_to (1.5, 0)
	cr.line_to (2, 0)

	cr.stroke ()
end

local render_adj = function (cr)
	render (cr)

	-- The arrow
	cr.move_to (-1, 1)
	cr.line_to (1, -1)

	cr.stroke ()

	cr.save ()
	cr.translate (1.5, -1.5)
	cr.rotate (math.atan2 (1, 1))

	cr.move_to (0, 0)
	cr.line_to (0.3, 0.8)
	cr.line_to (-0.3, 0.8)
	cr.close_path ()

	cr.fill ()
	cr.restore ()
end

local render_pot = function (cr)
	render (cr)

	-- The contact
	cr.move_to (0, -2)
	cr.line_to (2, -2)

	-- The arrow
	cr.move_to (0, -2)
	cr.line_to (0, -1)

	cr.stroke ()

	cr.move_to (0, -0.5)
	cr.line_to (0.3, -1.3)
	cr.line_to (-0.3, -1.3)
	cr.close_path ()

	cr.fill ()
end

-- Register the symbol
logdiag.register ("Resistor",
	names,     area,     terminals,     render)
logdiag.register ("ResistorAdjustable",
	names_adj, area_adj, terminals,     render_adj)
logdiag.register ("Potentiometer",
	names_pot, area_pot, terminals_pot, render_pot)