From 6f9a55c9873f7596487bf6c1ff837acc7172d8ee Mon Sep 17 00:00:00 2001
From: Kevin Keraudren <kevin@klarismo.com>
Date: Fri, 4 Dec 2015 08:48:08 +0000
Subject: [PATCH] added deprecation warning for LineModel and added note in
 TODO.txt

---
 TODO.txt               | 4 ++++
 skimage/measure/fit.py | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/TODO.txt b/TODO.txt
index 2b890b89..02bd9ead 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -8,6 +8,10 @@ Version 0.14
 * Remove deprecated ``skimage.restoration.nl_means_denoising``.
 * Remove deprecated ``skimage.filters.gaussian_filter``.
 * Remove deprecated ``skimage.filters.gabor_filter``.
+* Remove deprecated ``skimage.measure.LineModel`` and
+  add an alias LineModel = LineModelND. While the deprecated LineModel has for
+  parameters `(dist, theta)`, LineModelND has the more general parameters
+  `(origin, direction)`.
 
 
 Version 0.13
diff --git a/skimage/measure/fit.py b/skimage/measure/fit.py
index c6097c57..bb31928c 100644
--- a/skimage/measure/fit.py
+++ b/skimage/measure/fit.py
@@ -2,6 +2,7 @@ import math
 import warnings
 import numpy as np
 from scipy import optimize
+from .._shared.utils import skimage_deprecation
 
 
 def _check_data_dim(data, dim):
@@ -53,6 +54,11 @@ class LineModel(BaseModel):
 
     """
 
+    def __init__(self):
+        self.params = None
+        warnings.warn(skimage_deprecation('`LineModel` is deprecated, '
+                      'use `LineModelND` instead.'))
+
     def estimate(self, data):
         """Estimate line model from data using total least squares.