Render.py modifeid to work on Windows and handle the composite STLs in the printed directory.

Added renders for mendel version.

render.py

@@ -1,27 +1,37 @@
+#!/usr/bin/env python
+
 import os
 import sys
 import shutil
-import commands
+import subprocess
 
 def render(machine):
-	render_dir = machine + os.sep + "render"
-	print render_dir 
-	try:
-		os.stat(render_dir)
-	except:
-		os.mkdir(render_dir)
-	li = os.listdir(machine+os.sep+'stls')
-	stls = []
-	for i in li:
-		stls.append(i[:-4])
-	for i in stls:
-		command = 'blender -b  utils'+os.sep+'render.blend -P utils'+os.sep+'viz.py -- '+machine+os.sep+'stls'+os.sep+i+'.stl '+machine+os.sep+'render'+os.sep+i+'.png'
-		print(command)
-		print commands.getstatusoutput(command)[1]
+    stl_dir = machine + os.sep + "stls"
+    render_dir = machine + os.sep + "render"
+
+    if os.path.isdir(render_dir):
+        shutil.rmtree(render_dir)   #clear out any dross
+    os.makedirs(render_dir)
+    #
+    # List of individual part files
+    #
+    stls = [i[:-4] for i in os.listdir(stl_dir) if i[-4:] == ".stl"]
+    #
+    # Add the multipart files
+    #
+    for i in  os.listdir(stl_dir + os.sep + "printed"):
+        if not i[:-4] in stls:
+            stls.append("printed" + os.sep + i[:-4])
+
+    for i in stls:
+        command = 'blender -b  utils' + os.sep + 'render.blend -P utils' + os.sep + 'viz.py -- ' + \
+            stl_dir + os.sep + i + '.stl ' + render_dir + os.sep + i + '.png'
+        print(command)
+        subprocess.check_output(command.split())
 
 if __name__ == '__main__':
     if len(sys.argv) > 1:
         render(sys.argv[1])
     else:
-        print "usage: bom [mendel|sturdy|your_machine]"
+        print "usage: render [mendel|sturdy|your_machine]"
         sys.exit(1)