diff options
Diffstat (limited to 'lib/graph.py')
| -rw-r--r-- | lib/graph.py | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/lib/graph.py b/lib/graph.py index d64074a..c66a873 100644 --- a/lib/graph.py +++ b/lib/graph.py @@ -106,12 +106,22 @@ class Graph: except IndexError: raise ValueError("Following from disconnected edge") - def equals(self, other): + def equals(self, other, thres=2e-8): """ Returns `True` if the location of this and the *other* `Node` are the same. + + Parameters + ---------- + thres: float + If difference is smaller than this, points are equal. + The default value of 2e-8 radians is set based on + emphirical test cases. Relative threshold based on + the actual sizes of polygons is not implemented. """ - return np.array_equal(self._point, other._point) + #return np.array_equal(self._point, other._point) + return great_circle_arc.length(self._point, other._point, + degrees=False) < thres class Edge: |