From 3fb98d09f796ddc62c11b6c8b6b0c62f67c72019 Mon Sep 17 00:00:00 2001
From: Eric <31961027+frsnjung@users.noreply.github.com>
Date: Mon, 15 Jan 2018 11:14:12 +0100
Subject: [PATCH] UMatrixView save figure fix

Fixes the "AttributeError: 'NoneType' object has no attribute 'savefig'" when using the MatplotView.save() method on a UMatrixView object.
---
 sompy/visualization/umatrix.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sompy/visualization/umatrix.py b/sompy/visualization/umatrix.py
index afa8ae8..6665401 100644
--- a/sompy/visualization/umatrix.py
+++ b/sompy/visualization/umatrix.py
@@ -35,7 +35,7 @@ def show(self, som, distance2=1, row_normalized=False, show_data=True,
         proj = som.project_data(som.data_raw)
         coord = som.bmu_ind_to_xy(proj)
 
-        fig, ax = plt.subplots(1, 1)
+        self._fig, ax = plt.subplots(1, 1)
         imshow(umat, cmap=plt.cm.get_cmap('RdYlBu_r'), alpha=1)
 
         if contooor:
@@ -61,7 +61,7 @@ def show(self, som, distance2=1, row_normalized=False, show_data=True,
                              verticalalignment='center')
 
         ratio = float(msz[0])/(msz[0]+msz[1])
-        fig.set_size_inches((1-ratio)*15, ratio*15)
+        self._fig.set_size_inches((1-ratio)*15, ratio*15)
         plt.tight_layout()
         plt.subplots_adjust(hspace=.00, wspace=.000)
         sel_points = list()