Fixed edge selector synthesis crash

GUI.tscn

@@ -1470,10 +1470,10 @@ margin_right = 315.0
 margin_bottom = 517.0
 
 [node name="ColorPicker" type="ColorPicker" parent="ColorPickerDialog/PanelContainer/VBoxContainer"]
-margin_left = 136.0
-margin_top = 136.0
-margin_right = 444.0
-margin_bottom = 598.0
+margin_left = 148.0
+margin_top = 148.0
+margin_right = 456.0
+margin_bottom = 610.0
 
 [node name="OkButton" type="Button" parent="ColorPickerDialog/PanelContainer/VBoxContainer"]
 margin_top = 466.0

lib/cqgi_interface.py

@@ -326,7 +326,10 @@ def tess(self, shape, cq_shape):
 				min = shape.BoundingBox().zlen
 
 			# Use factors of 10 of the ratio of the min and max to set the edge line thickness
-			ratio = min / max
+			if min > 0 and max > 0:
+				ratio = min / max
+			else:
+				ratio = -1
 			if ratio > 0 and ratio <= 10:
 				diag = max * 0.005
 			elif ratio > 10 and ratio <= 100:

lib/synthesis.py

@@ -53,7 +53,8 @@ def synthesize_edge_sel(self, selector_type, selected_edges, selected_edge_types
 		for see in selected_edge_ends:
 			sel_edge_ends.append((see.x, see.y, see.z))
 		for sen in selected_normals:
-			sel_normals.append((sen.x, sen.y, sen.z))
+			if sen != None:
+				sel_normals.append((sen.x, sen.y, sen.z))
 		for os in other_edge_starts:
 			other_starts.append((os.x, os.y, os.z))
 		for oe in other_edge_ends:
@@ -76,6 +77,11 @@ def synthesize_edge_sel(self, selector_type, selected_edges, selected_edge_types
 				other_meta_temp[str(om_inner)] = bool(om[om_inner])
 				other_meta.append(other_meta_temp)
 
+		# Workaround for mismatch in size between start and normal arrays
+		if len(other_edge_starts) != len(other_norms):
+			for i in range(len(other_norms), len(other_edge_starts)):
+				other_norms.append((0, 0, 0))
+
 		# Synthesize the selector
 		res = vector_based_synth.synthesize(str(selector_type), selected_edges=sel_edges, selected_edge_types=sel_edge_types, selected_edge_starts=sel_edge_starts, selected_edge_ends=sel_edge_ends, selected_edge_normals=sel_normals, other_edge_starts=other_starts, other_edge_ends=other_ends, other_edge_meta=other_meta, other_normals=other_norms)