independent process spawn for linux

extensions/fablabchemnitz/animate_order/animate_order.py

@@ -6,6 +6,7 @@ import shutil
 import os
 import sys
 import warnings
+import shlex
 
 """
 Extension for InkScape 1.X
@@ -36,15 +37,14 @@ DETACHED_PROCESS = 0x00000008
 class AnimateOrder (inkex.EffectExtension):
 
     def spawnIndependentProcess(self, args): #function to spawn non-blocking inkscape instance. the inkscape command is available because it is added to ENVIRONMENT when Inkscape main instance is started
-        if os.name == 'nt':
         warnings.simplefilter('ignore', ResourceWarning) #suppress "enable tracemalloc to get the object allocation traceback"
+        if os.name == 'nt':
             subprocess.Popen(args, close_fds=True, creationflags=DETACHED_PROCESS)
-            warnings.simplefilter("default", ResourceWarning)            
         else:
-            pid = os.fork()
+            cmd = "nohup " + " ".join(args) + " &"
-            if pid == 0: # new process
+            cmds = shlex.split(cmd)
-                os.system("nohup " + args + " &")
+            subprocess.Popen(cmds, start_new_session=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
-                exit()
+        warnings.simplefilter("default", ResourceWarning)
 
     def add_arguments(self, pars):
         pars.add_argument("--tab")

extensions/fablabchemnitz/export_selection.py

@@ -8,6 +8,7 @@ import os
 import sys
 import subprocess
 from subprocess import Popen, PIPE
+import shlex
 import warnings
 import inkex
 import inkex.command
@@ -22,7 +23,6 @@ logger = logging.getLogger(__name__)
 DETACHED_PROCESS = 0x00000008
 GROUP_ID = 'export_selection_transform'
 
-
 class ExportObject(inkex.EffectExtension):
     
     def add_arguments(self, pars):
@@ -43,15 +43,14 @@ class ExportObject(inkex.EffectExtension):
             Popen(["xdg-open", dir], close_fds=True, start_new_session=True).wait()
 
     def spawnIndependentInkscape(self, file): #function to spawn non-blocking inkscape instance. the inkscape command is available because it is added to ENVIRONMENT when Inkscape main instance is started
-		if os.name == 'nt':
         warnings.simplefilter('ignore', ResourceWarning) #suppress "enable tracemalloc to get the object allocation traceback"
+        if os.name == 'nt':
             Popen(["inkscape", file], close_fds=True, creationflags=DETACHED_PROCESS)
-			warnings.simplefilter("default", ResourceWarning)
         else:
-			pid = os.fork()
+            cmd = "nohup inkscape " + file + " &"
-			if pid == 0: # new process
+            cmds = shlex.split(cmd)
-			    os.system("nohup inkscape " + file + " &")
+            subprocess.Popen(cmds, start_new_session=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
-			    exit()
+        warnings.simplefilter("default", ResourceWarning)
 
     def effect(self):
         if not self.svg.selected:

extensions/fablabchemnitz/paperfold.py

@@ -36,6 +36,15 @@ Module licenses
 
 possible import file types -> https://www.graphics.rwth-aachen.de/media/openmesh_static/Documentations/OpenMesh-8.0-Documentation/a04096.html
 
+todo:
+- debug coplanar color for edges for some cases
+- remove empty groups (text)
+- abort if 0 faces
+- give hints for joinery preparations (apply transform, ungroup, ...)
+- update documentation accordingly
+- make angleRange global for complete unfolding (to match glue pairs between multiple unfoldings)
+- add angleRange to stats
+
 """
 
 # Compute the third point of a triangle when two points and all edge lengths are given