adds cyclic mode

aaaedfc2 · Dealga McArdle · 540c44d1 · aaaedfc2
--- a/utils/geom.py
+++ b/utils/geom.py
@@ -211,7 +211,7 @@ class CubicSpline(Spline):
        if is_cyclic:

            #print(describe_data_shape(vertices))
-            locs = np.array(vertices[-4:] + vertices + vertices[:4])
+            locs = np.concatenate((vertices[-4:], vertices, vertices[:4]), axis=0)
            if tknots is None:
                if metric is None:
                    raise Exception("CubicSpline: either tknots or metric must be specified")