From 299ce010bd8f2f5a65e4fa5a033a122b318b8c83 Mon Sep 17 00:00:00 2001
From: Přemysl Janouch <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/jfet.lua | 63 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 share/library/Active/jfet.lua

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

diff --git a/share/library/Active/jfet.lua b/share/library/Active/jfet.lua
new file mode 100644
index 0000000..30c0eb9
--- /dev/null
+++ b/share/library/Active/jfet.lua
@@ -0,0 +1,63 @@
+-- Symbol names
+local names_jfet_n =
+{
+	en = "N-channel JFET transistor",
+	cs = "Tranzistor JFET s kanálem N"
+}
+
+local names_jfet_p =
+{
+	en = "P-channel JFET transistor",
+	cs = "Tranzistor JFET s kanálem P"
+}
+
+-- Render area in base units (X1, Y1, X2, Y2)
+local area = {-2, -1.5, 2, 1.5}
+
+-- Terminal points
+local terminals = {{-2, 1}, {2, 1}, {2, -1}}
+
+-- Rendering
+local render = function (cr)
+	-- The terminals
+	cr.move_to (-2, 1)
+	cr.line_to (0, 1)
+
+	cr.move_to (0, 1)
+	cr.line_to (2, 1)
+
+	cr.move_to (0, -1)
+	cr.line_to (2, -1)
+
+	-- The ohmic connection
+	cr.move_to (0, -1.5)
+	cr.line_to (0, 1.5)
+
+	cr.stroke ()
+end
+
+local render_jfet_n = function (cr)
+	render (cr)
+
+	cr.move_to (-1, 0.6)
+	cr.line_to (-0.5, 1)
+	cr.line_to (-1, 1.4)
+
+	cr.stroke ()
+end
+
+local render_jfet_p = function (cr)
+	render (cr)
+
+	cr.move_to (-0.4, 0.6)
+	cr.line_to (-1, 1)
+	cr.line_to (-0.4, 1.4)
+
+	cr.stroke ()
+end
+
+-- Register the symbols
+logdiag.register ("JFET-N", names_jfet_n, area, terminals, render_jfet_n)
+logdiag.register ("JFET-P", names_jfet_p, area, terminals, render_jfet_p)
+
+
-- 
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