Able to generate g-code

svg2gcode.inx

@@ -9,19 +9,18 @@
   <dependency type="executable" location="extensions">shapes.py</dependency>
   <dependency type="executable" location="extensions">simplepath.py</dependency>
   <dependency type="executable" location="extensions">svg2gcode.py</dependency>
-  <param name="bed-width" type="int" _gui-text="Bed Width">200</param>
-  <param name="bed-height" type="int" _gui-text="Bed Height">200</param>
+  <param name="bed-width" type="int" min="200" max="200" _gui-text="Bed Width">200</param>
+  <param name="bed-height" type="int" min="200" max="200" _gui-text="Bed Height">200</param>
   <param name="gcode-file" type="string" _gui-text="G-code path">plastibot.gcode</param>
-  <param name="preamble" type="String" _gui-text="Preamble">"G28\nG1 Z5.0"</param>
-  <param name="postamble" type="String" _gui-text="Postamble">"G28"</param>
-  <param name="shape-preamble" type="String" _gui-text="Shape Preamble">"G4 P200"</param>
-  <param name="shape-postamble" type="String" _gui-text="Shape Postamble">"G4
-  P200"</param>
+  <param name="preamble" type="string" _gui-text="Preamble">G28\nG1 Z5.0</param>
+  <param name="postamble" type="string" _gui-text="Postamble">G28</param>
+  <param name="shape-preamble" type="string" _gui-text="Shape Preamble">G4 P200</param>
+  <param name="shape-postamble" type="string" _gui-text="Shape Postamble">G4 P200</param>
  
   <effect>
     <object-type>all</object-type>
     <effects-menu>
-       <submenu _name="Plastibot"/>
+       <submenu _name="svg2gcode"/>
     </effects-menu>
   </effect>
   <script>

svg2gcode.py

@@ -34,8 +34,13 @@ class svg2gcode(inkex.Effect):
           type = 'string', dest = 'shape_postamble', default = 'G4 P200\n',
           help = 'Shape Postamble G-code')
         
-    def generate_gcode(svg):
+    def generate_gcode(self, svg):
         gcode_file = os.path.join(os.path.expanduser('~'), self.options.gcode_file)
+        try:
+            os.remove(gcode_file)
+        except OSError:
+            pass
+
         bed_width = self.options.bed_width
         bed_height = self.options.bed_height
         
@@ -48,13 +53,12 @@ class svg2gcode(inkex.Effect):
         scale_x = bed_width / max(width, height)
         scale_y = bed_height / max(width, height)
 
-        with open(gcode_file) as gcode:  
+        with open(gcode_file, 'w') as gcode:  
             gcode.write(self.options.preamble + '\n')
      
             svg_shapes = set(['rect', 'circle', 'ellipse', 'line', 'polyline', 'polygon', 'path'])
             
             for elem in svg.iter():
-                
                 try:
                     _, tag_suffix = elem.tag.split('}')
                 except ValueError:
@@ -67,37 +71,34 @@ class svg2gcode(inkex.Effect):
                     if d:
                         gcode.write(self.options.shape_preamble + '\n')
 
-                        p = point_generator(d, smoothness)
+                        p = point_generator(d, 0.2)
                         for x,y in p:
-                            if x > 0 and x < bed_width and y > 0 and y < bed_height:  
-                                gcode.write("G1 X%0.1f Y%0.1f\n" % (scale_x*x, scale_y*y)) 
+                            gcode.write("G1 X%0.1f Y%0.1f\n" % (scale_x*x, scale_y*y)) 
 
                         gcode.write(self.options.shape_postamble + '\n')
 
-                gcode.write(self.options.postamble + '\n')
+            gcode.write(self.options.postamble + '\n')
 
     def effect(self):
         svg = self.document.getroot()
         
+        self.generate_gcode(svg)
+
         width  = inkex.unittouu(svg.get('width'))
         height = inkex.unittouu(svg.attrib['height'])
 
         layer = inkex.etree.SubElement(svg, 'g')
-        layer.set(inkex.addNS('label', 'inkscape'), 'Hello %s Layer' % (what))
+        layer.set(inkex.addNS('label', 'inkscape'), 'Hello svg2gcode Layer')
         layer.set(inkex.addNS('groupmode', 'inkscape'), 'layer')
 
         # Create text element
         text = inkex.etree.Element(inkex.addNS('text','svg'))
-        text.text = 'Hello %s!' % (what)
+        text.text = 'Hello svg2gcode!'
 
         # Set text position to center of document.
         text.set('x', str(width / 2))
         text.set('y', str(height / 2))
 
-        # Center text horizontally with CSS style.
-        style = {'text-align' : 'center', 'text-anchor': 'middle'}
-        text.set('style', formatStyle(style))
-
         # Connect elements together.
         layer.append(text)