From c6000b4adaef8c2590a46bdba9f20e2d9f099a11 Mon Sep 17 00:00:00 2001
From: Mario Voigt <mario.voigt@stadtfabrikanten.org>
Date: Sun, 23 May 2021 15:18:29 +0200
Subject: [PATCH] added unit option for maze generator

---
 extensions/fablabchemnitz/maze/laby.inx | 11 +++++++++--
 extensions/fablabchemnitz/maze/laby.py  |  9 +++++----
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/extensions/fablabchemnitz/maze/laby.inx b/extensions/fablabchemnitz/maze/laby.inx
index 1fa6c27a..ca6f5a13 100644
--- a/extensions/fablabchemnitz/maze/laby.inx
+++ b/extensions/fablabchemnitz/maze/laby.inx
@@ -2,9 +2,16 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <name>Maze</name>
     <id>fablabchemnitz.de.maze</id>
-    <param name="verti" type="int" min="2" max="1000" gui-text="Height">20</param>
-    <param name="horiz" type="int" min="2" max="1000" gui-text="Length">20</param>
+    <param name="verti" type="int" min="2" max="1000" gui-text="Height (cells)">20</param>
+    <param name="horiz" type="int" min="2" max="1000" gui-text="Length (cells)">20</param>
     <param name="size" type="float" max="100.0" gui-text="Cell Size">10.0</param>
+     <param name="cell_units" gui-text="Cell units" type="optiongroup" appearance="combo">
+        <option value="px">px</option>
+        <option value="pt">pt</option>
+        <option value="in">in</option>
+        <option value="cm">cm</option>
+        <option value="mm">mm</option>
+     </param>
     <param name="width" type="float" gui-text="Line Width">1.0</param>
     <param name="algo" type="optiongroup" appearance="combo" gui-text="Algorithm">
         <option value="kruskal">Kruskal</option>
diff --git a/extensions/fablabchemnitz/maze/laby.py b/extensions/fablabchemnitz/maze/laby.py
index 6bfd1752..ab5e3e40 100644
--- a/extensions/fablabchemnitz/maze/laby.py
+++ b/extensions/fablabchemnitz/maze/laby.py
@@ -27,9 +27,10 @@ def points_to_svgd(p, close=False):
 class Recursive(inkex.EffectExtension):
 
     def add_arguments(self, pars):
-        pars.add_argument("--verti", type=int, default=20, help="Height")
-        pars.add_argument("--horiz", type=int, default=20, help="Length")
-        pars.add_argument("--size",  type=float, default=10.0, help="Cell Size")
+        pars.add_argument("--verti", type=int, default=20, help="Height (cells)")
+        pars.add_argument("--horiz", type=int, default=20, help="Length (cells)")
+        pars.add_argument("--size",  type=float, default=10.0, help="Cell size")
+        pars.add_argument("--cell_units", default="mm", help="Units")  
         pars.add_argument("--algo", default=1, help="Algorithm")
         pars.add_argument("--width", type=float, default=10.0, help="Line width")
 
@@ -39,7 +40,7 @@ class Recursive(inkex.EffectExtension):
         # my group of paths
         topgroup = etree.SubElement(self.svg.get_current_layer(), 'g' )
 
-        lc = self.options.size
+        lc = self.svg.unittouu (str(self.options.size) + self.options.cell_units)
         X = self.options.verti
         Y = self.options.horiz