wrapper script for CutOptim

extensions/fablabchemnitz/cutoptim/cutoptim.py

@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+
+"""
+Extension for InkScape 1.0
+
+CutOptim OS Wrapper script to make CutOptim work on Windows and Linux systems without duplicating .inx files
+
+Author: Mario Voigt / FabLab Chemnitz
+Mail: mario.voigt@stadtfabrikanten.org
+Date: 31.08.2020
+Last patch: 31.08.2020
+License: GNU GPL v3
+
+"""
+
+import inkex
+import sys
+import os
+from lxml import etree
+
+class CutOptimWrapper(inkex.Effect):
+    def __init__(self):
+        inkex.Effect.__init__(self)
+        args = sys.argv[1:] 
+        for arg in args:
+            key=arg.split("=")[0]
+            if len(arg.split("=")) == 2:
+                value=arg.split("=")[1]
+                try:
+                    self.arg_parser.add_argument(key, default=key)
+                except:
+                    pass #ignore duplicate id arg
+
+    def effect(self):
+        cmd=""
+        if os.name == "nt":
+            cutoptim="CutOptim.exe"
+        else:
+            cutoptim="./CutOptim"
+        #inkex.utils.debug(cmd)
+        cmd += cutoptim
+        for arg in vars(self.options):
+            if arg != "output" and arg != "ids" and arg != "selected_nodes":
+                #inkex.utils.debug(str(arg) + " = " + str(getattr(self.options, arg)))
+                #fix behaviour of "original" arg which does not correctly gets interpreted if set to false
+                if arg == "original" and str(getattr(self.options, arg)) == "false":
+                    continue
+                if arg == "input_file":
+                   cmd += " --file " + str(getattr(self.options, arg))
+                else:
+                    cmd += " --" + arg + " " + str(getattr(self.options, arg))
+
+        if os.name == "nt":
+            cmd += " --output cutoptim.svg"    
+        else:
+            cmd += " --output /tmp/cutoptim.svg"
+        #inkex.utils.debug(str(cmd))
+        
+        # run CutOptim with the parameters provided
+        with os.popen(cmd, "r") as cutoptim:
+            result = cutoptim.read()
+        
+        # check output existence
+        try:
+            stream = open("/tmp/cutoptim.svg", 'r')
+        except FileNotFoundError as e:
+            inkex.utils.debug("There was no SVG output generated. Cannot continue")
+            exit(1)
+            
+        # write the generated SVG into InkScape's canvas
+        p = etree.XMLParser(huge_tree=True)
+        doc = etree.parse(stream, parser=etree.XMLParser(huge_tree=True))
+        stream.close()
+        doc.write(sys.stdout.buffer)
+        
+if __name__ == '__main__':
+    CutOptimWrapper().run()

extensions/fablabchemnitz/cutoptim/fablabchemnitz_cutoptim.inx

@@ -42,6 +42,6 @@
         </effects-menu>
     </effect>
     <script>
-        <command location="inx">CutOptim</command>
+        <command location="inx" interpreter="python">cutoptim.py</command>
     </script>
 </inkscape-extension>

extensions/fablabchemnitz/cutoptim/windows/fablabchemnitz_cutoptim.inx

@@ -1,47 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
-    <name>Cutting Optimizer (Nesting)</name>
-    <id>fablabchemnitz.de.cutoptim</id>
-    <param name="unit" type="optiongroup" appearance="combo" gui-text="Unit">
-        <option value="mm">mm</option>
-        <option value="cm">cm</option>
-        <option value="m">m</option>
-        <option value="km">km</option>
-        <option value="in">in</option>
-        <option value="ft">ft</option>
-        <option value="yd">yd</option>
-        <option value="pt">pt</option>
-        <option value="px">px</option>
-        <option value="pc">pc</option>
-    </param>
-    <param name="distance" type="float" min="0" max="10.0" gui-text="Min distance between objects">2.0</param>
-    <param name="max_length" type="float" min="0" max="1000" gui-text="Max length of single segment">1000</param>
-    <param name="optimizing_level" type="int" min="1" max="10" gui-text="Optimizing level">1</param>
-    <param name="original" type="bool" gui-text="Keep original layer in output">false</param>
-    <param name="firstpos" type="optiongroup" appearance="combo" gui-text="Select option for largest element placement: ">
-        <option value="TL">Top Left</option>
-        <option value="TC">Top Center</option>
-        <option value="TR">Top Right</option>
-        <option value="CL">Sheet center</option>
-        <option value="CC">Center Left</option>
-        <option value="CR">Center Right</option>
-        <option value="BL">Bottom Left</option>
-        <option value="BC">Bottom Center</option>
-        <option value="BR">Bottom Right</option>
-    </param>
-    <param name="free_rot" type="bool" gui-text="Allow free rotation of paths, angle parameter not used">true</param>
-    <param name="angle" type="float" min="0" max="180" gui-text="Try rotation by (0 no rotation allowed)">0</param>
-    <param name="nested" type="bool" gui-text="Attach nested path to the bigger one">true</param>
-    <param name="debug_file" type="bool" gui-text="Debug file generation">true</param>
-    <effect>
-        <object-type>all</object-type>
-        <effects-menu>
-            <submenu name="FabLab Chemnitz">
-				<submenu name="Nesting/Cut Optimization"/>
-			</submenu>
-        </effects-menu>
-    </effect>
-    <script>
-        <command location="inx">CutOptim.exe</command>
-    </script>
-</inkscape-extension>