Remove mlab.distances_along_curve

dstansby · dstansby · commit c00adaf042b0 · 2018-09-29T11:05:06.000+01:00
diff --git a/doc/api/next_api_changes/2018-09-18-DS.rst b/doc/api/next_api_changes/2018-09-18-DS.rst
@@ -29,5 +29,6 @@ in Matplotlib 2.2 has been removed. See below for a list:
 - `mlab.fftsurr`
 - `mlab.offset_line`
 - `mlab.quad2cubic`
+- `mlab.distances_along_curve`
 - `mlab.path_length`
 - `mlab.donothing_callback`
diff --git a/lib/matplotlib/mlab.py b/lib/matplotlib/mlab.py
@@ -2844,16 +2844,3 @@ def vector_lengths(X, P=2., axis=None):
     """
     X = np.asarray(X)
     return (np.sum(X**(P), axis=axis))**(1./P)
-
-
-@cbook.deprecated('2.2')
-def distances_along_curve(X):
-    """
-    Computes the distance between a set of successive points in *N* dimensions.
-
-    Where *X* is an *M* x *N* array or matrix.  The distances between
-    successive rows is computed.  Distance is the standard Euclidean
-    distance.
-    """
-    X = np.diff(X, axis=0)
-    return vector_lengths(X, axis=1)
diff --git a/lib/matplotlib/pylab.py b/lib/matplotlib/pylab.py
@@ -231,7 +231,7 @@
 from matplotlib.mlab import (
     amap, base_repr, binary_repr, csv2rec,
     demean, detrend, detrend_linear, detrend_mean, detrend_none,
-    distances_along_curve, exp_safe,
+    exp_safe,
     frange,
     identity, inside_poly, is_closed_polygon, ispower2, isvector, l1norm,
     l2norm, log2, movavg, norm_flat,
