# HG changeset patch
# User Laman
# Date 2019-01-01 11:24:48
# Node ID 28ca21b89e4301192383401f3eb64e77c07b1b78
# Parent  6180b3bd7f3f9b16021fc846848e637aaa3e8e28

fix: returned returns to corners

diff --git a/src/analyzer/corners.py b/src/analyzer/corners.py
--- a/src/analyzer/corners.py
+++ b/src/analyzer/corners.py
@@ -55,7 +55,11 @@ class Corners:
 	#
 	#  @return True for a convex quadrangle, False for concave and degenerate cases.
 	def _canonizeOrder(self):
-		if len(self._corners)!=4: self._is_canon=False
+		def false():
+			self._is_canon=False
+			return False
+
+		if len(self._corners)!=4: return false()
 
 		a,b,c,d=self._corners
 		abc=doubleTriangleArea(a,b,c)
@@ -63,11 +67,11 @@ class Corners:
 		acd=doubleTriangleArea(a,c,d)
 		bcd=doubleTriangleArea(b,c,d)
 
-		if any(x==0 for x in (abc,abd,acd,bcd)): self._is_canon=False # collinear degenerate
+		if any(x==0 for x in (abc,abd,acd,bcd)): return false() # collinear degenerate
 
 		swaps=[(1,3),(0,1),(1,2),(0,3),(2,3),(0,0)]
 		index=(8 if abc>0 else 0)|(4 if abd>0 else 0)|(2 if acd>0 else 0)|(1 if bcd>0 else 0)
-		if index%3!=0: return False # concave degenerate
+		if index%3!=0: return false() # concave degenerate
 		swap=swaps[index//3]
 
 		self._corners[swap[0]], self._corners[swap[1]] = self._corners[swap[1]], self._corners[swap[0]] # counter-clockwise order
@@ -86,6 +90,7 @@ class Corners:
 
 		log.debug(self._corners)
 		self._is_canon=True # success
+		return True
 
 	def scale(self,scale):
 		self._corners=[c * scale for c in self._corners]