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README.md

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 # inkscape-papercraft-unfold-stl
+This minimal extension unfolds binary STL files into flattened SVG shapes which can be cut by laser, vinyl cutter, milling machine, etc.. It utilizes https://github.com/osresearch/papercraft.
 
+## Installation
+Drop all files in your InkScape extension directory (except Test STL/ and README.md). 
+
+##Documentation
+Can be found at: https://wiki.fablabchemnitz.de/display/FCT/Papercraft+Unfold+STL
+
+##Notes
+This plugin is also included in https://gitea.fablabchemnitz.de/MarioVoigt/mightyscape

fablabchemnitz_papercraft_unfold.inx

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+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+    <_name>Papercraft Unfold</_name>
+    <id>fablabchemnitz.de.papercraft_unfold</id>
+    <dependency type="executable" location="extensions">fablabchemnitz_papercraft_unfold.py</dependency>
+    <input>
+        <extension>.stl</extension>
+        <mimetype>application/sla</mimetype>
+        <_filetypename>Unfoldable Stereolitography File (*.stl)</_filetypename>
+        <_filetypetooltip>Unfold STL Files</_filetypetooltip>
+    </input>
+    <script>
+        <command reldir="extensions" interpreter="python">fablabchemnitz_papercraft_unfold.py</command>
+    </script>
+</inkscape-extension>

fablabchemnitz_papercraft_unfold.py

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+'''
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+Creator: Mario Voigt / FabLab Chemnitz - Stadtfabrikanten e.V.
+'''
+
+import sys
+from subprocess import Popen, PIPE
+import subprocess
+import inkex
+import os
+class Unfold:
+    def __init__(self):
+        stl_filename = inkex.sys.argv[1]
+        #inkex.debug("stl_filename: "+stl_filename)
+        if os.name=="nt":
+            outname = "papercraft_unfold_output.svg"
+            #remove old file if existent
+            if os.path.exists(outname):
+              os.remove(outname)
+            if os.path.exists("unfold.exe.stackdump"):
+              os.remove("unfold.exe.stackdump")
+            #inkex.debug("os.getcwd(): "+os.getcwd())
+            cmd = os.getcwd() + "\\papercraft\\unfold.exe" + " < " + stl_filename + " > " + outname
+            #inkex.debug("cmd: "+cmd)
+            p = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE)
+            inkex.debug(p.communicate())
+            p.wait()
+            if p.returncode == 0:
+              #inkex.debug("OK")			
+              doc = inkex.etree.parse(os.getcwd() + "\\" + outname)
+              doc.write(inkex.sys.stdout)
+if __name__ == '__main__':
+    gc = Unfold()