fix(pointvector): Support is_equivalent for Vectors

We might as well us inheritance here.

ladybug_geometry/geometry2d/pointvector.py

@@ -86,6 +86,22 @@ def is_zero(self, tolerance):
         """
         return abs(self.x) <= tolerance and abs(self.y) <= tolerance
 
+    def is_equivalent(self, other, tolerance):
+        """Test whether this object is equivalent to another within a certain tolerance.
+
+        Note that if you want to test whether the coordinate values are perfectly
+        equal to one another, the == operator can be used.
+
+        Args:
+            other: Another Point2D for which geometric equivalency will be tested.
+            tolerance: The minimum difference between the coordinate values of two
+                objects at which they can be considered geometrically equivalent.
+        Returns:
+            True if equivalent.  False if not equivalent.
+        """
+        return abs(self.x - other.x) <= tolerance and \
+            abs(self.y - other.y) <= tolerance
+
     def normalize(self):
         """Get a copy of the vector that is a unit vector (magnitude=1)."""
         d = self.magnitude
@@ -367,22 +383,6 @@ def distance_to_point(self, point):
         vec = (self.x - point.x, self.y - point.y)
         return math.sqrt(vec[0] ** 2 + vec[1] ** 2)
 
-    def is_equivalent(self, point, tolerance):
-        """Test whether this point is equivalent to another within a certain tolerance.
-
-        Note that if you want to test whether the coordinate values are perfectly
-        equal to one another, the == operator can be used.
-
-        Args:
-            point: Another Point2D for which geometric equivalency will be tested.
-            tolerance: The minimum difference between the coordinate values of two
-                points at which they can be considered geometrically equivalent.
-        Returns:
-            True if equivalent.  False if not equivalent.
-        """
-        return abs(self.x - point.x) <= tolerance and \
-            abs(self.y - point.y) <= tolerance
-
     def to_dict(self):
         """Get Point2D as a dictionary."""
         return {'type': 'Point2D',

ladybug_geometry/geometry3d/pointvector.py

@@ -94,6 +94,25 @@ def is_zero(self, tolerance):
         return abs(self.x) <= tolerance and abs(self.y) <= tolerance and \
             abs(self.z) <= tolerance
 
+    def is_equivalent(self, other, tolerance):
+        """Test whether this object is equivalent to another within a certain tolerance.
+
+        Note that if you want to test whether the coordinate values are perfectly
+        equal to one another, the == operator can be used.
+
+        Args:
+            other: Another Point3D or Vector3D for which geometric equivalency
+                will be tested.
+            tolerance: The minimum difference between the coordinate values of two
+                objects at which they can be considered geometrically equivalent.
+
+        Returns:
+            True if equivalent. False if not equivalent.
+        """
+        return abs(self.x - other.x) <= tolerance and \
+            abs(self.y - other.y) <= tolerance and \
+            abs(self.z - other.z) <= tolerance
+
     def normalize(self):
         """Get a copy of the vector that is a unit vector (magnitude=1)."""
         d = self.magnitude
@@ -426,23 +445,6 @@ def distance_to_point(self, point):
         vec = (self.x - point.x, self.y - point.y, self.z - point.z)
         return math.sqrt(vec[0] ** 2 + vec[1] ** 2 + vec[2] ** 2)
 
-    def is_equivalent(self, point, tolerance):
-        """Test whether this point is equivalent to another within a certain tolerance.
-
-        Note that if you want to test whether the coordinate values are perfectly
-        equal to one another, the == operator can be used.
-
-        Args:
-            point: Another Point3D for which geometric equivalency will be tested.
-            tolerance: The minimum difference between the coordinate values of two
-                points at which they can be considered geometrically equivalent.
-        Returns:
-            True if equivalent.  False if not equivalent.
-        """
-        return abs(self.x - point.x) <= tolerance and \
-            abs(self.y - point.y) <= tolerance and \
-            abs(self.z - point.z) <= tolerance
-
     def to_dict(self):
         """Get Point3D as a dictionary."""
         return {'type': 'Point3D',