fix in Wire.surface()

jimy-byerley · Nov 5, 2022 · 3ef10df · 3ef10df
1 parent a2a78f3
commit 3ef10df
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/madcad/mesh/wire.py b/madcad/mesh/wire.py
@@ -222,11 +222,11 @@ def length(self) -> float:
 
 	def surface(self) -> float:
 		''' return the surface enclosed by the web if planar and is a loop (else it has no meaning) '''
-		s = vec3(0)
 		o = self.barycenter()
+		s = vec3(0)
 		for i in range(1, len(self)):
-			area += cross(self[i-1]-o, self[i]-o)
-		return length(area)
+			s += cross(self[i-1]-o, self[i]-o)
+		return length(s)
 
 	def barycenter(self) -> vec3:
 		''' curve barycenter '''