From 299ce010bd8f2f5a65e4fa5a033a122b318b8c83 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C5=99emysl=20Janouch?= <p.janouch@gmail.com>
Date: Fri, 11 Feb 2011 18:37:00 +0100
Subject: Update the symbol library.

* Add bipolar, IGFET and JFET transistors.
* Add more variants to some symbols.
* Add a symbol for a simple terminal.
* Avoid unneccessary stroke() calls.
* Fix comments.
---
 share/library/Active/bipolar.lua | 73 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 share/library/Active/bipolar.lua

(limited to 'share/library/Active/bipolar.lua')

diff --git a/share/library/Active/bipolar.lua b/share/library/Active/bipolar.lua
new file mode 100644
index 0000000..f08983f
--- /dev/null
+++ b/share/library/Active/bipolar.lua
@@ -0,0 +1,73 @@
+-- Symbol names
+local names_npn =
+{
+	en = "NPN transistor",
+	cs = "Tranzistor NPN"
+}
+
+local names_pnp =
+{
+	en = "PNP transistor",
+	cs = "Tranzistor PNP"
+}
+
+-- Render area in base units (X1, Y1, X2, Y2)
+local area = {-2, -2, 2, 2}
+
+-- Terminal points
+local terminals = {{-2, 0}, {2, 2}, {2, -2}}
+
+-- Rendering
+local render = function (cr)
+	-- The terminals
+	cr.move_to (-2, 0)
+	cr.line_to (0, 0)
+
+	cr.move_to (0, 0.5)
+	cr.line_to (2, 2)
+
+	cr.move_to (0, -0.5)
+	cr.line_to (2, -2)
+
+	-- The ohmic connection
+	cr.move_to (0, -1)
+	cr.line_to (0, 1)
+
+	cr.stroke ()
+end
+
+local render_npn = function (cr)
+	render (cr)
+
+	cr.save ()
+	cr.translate (0, -0.5)
+	cr.rotate (math.atan2 (-2, -1.5))
+
+	cr.move_to (-0.4, 0.8)
+	cr.line_to (0, 1.4)
+	cr.line_to (0.4, 0.8)
+
+	cr.stroke ()
+	cr.restore ()
+end
+
+local render_pnp = function (cr)
+	render (cr)
+
+	cr.save ()
+	cr.translate (2, -2)
+	cr.rotate (math.atan2 (2, 1.5))
+
+	cr.move_to (-0.4, 1.3)
+	cr.line_to (0, 1.9)
+	cr.line_to (0.4, 1.3)
+
+	cr.stroke ()
+	cr.restore ()
+end
+
+-- Register the symbols
+logdiag.register ("NPN", names_npn, area, terminals, render_npn)
+logdiag.register ("PNP", names_pnp, area, terminals, render_pnp)
+
+
-- 
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