Fixed weight bug; Corrected associated unit test (#52)

Author: mlaero

src/pyiges/geometry.py

@@ -277,7 +277,7 @@ def _add_parameters(self, parameters):
 
         # Weights
         self.W = []
-        for i in range(self.A + 8, self.A + self.K + 8):
+        for i in range(self.A + 8, self.A + self.K + 8 + 1):
             self.W.append(parse_float(parameters[i]))
 
         # Control points
@@ -321,7 +321,7 @@ def to_geomdl(self):
         curve = NURBS.Curve()
         curve.degree = self.M
         curve.ctrlpts = self.control_points
-        curve.weights = self.W + [1]
+        curve.weights = self.W
         curve.knotvector = self.T  # Set knot vector
         return curve
 

tests/test_pyiges.py

@@ -309,7 +309,7 @@ def test_bsplines_parse(curve):
     )
 
     assert curve.W == pytest.approx(
-        [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
+        [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
     )
 
     assert curve.d == {