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.

1 files changed, 63 insertions, 0 deletions

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)
+
+