removed test

slider/chart_reg.py

@@ -95,12 +95,6 @@ def register_chart_to_slide(
         hull = ConvexHull(edge_crds_cat)
         edge_crds_cat = np.concatenate([edge_crds_cat[simplex,:] for simplex in hull.simplices], axis=0)
 
-    # this tests for any point neighbours that are identical and discards them
-    # it stops there being nans later when calculating the norms
-    # there must be a better way to fix this, but this works for now
-    zeroidx = np.all(np.roll(edge_crds_cat, 1, axis=0) - np.roll(edge_crds_cat, -1, axis=0) == 0, axis=1)
-    edge_crds_cat = edge_crds_cat[~zeroidx]
-
     # load slide, convert to grayscale, and invert if light-field
 
     slide_res = slide_res * (2 ** rlevel)