[Commit-gnuradio] [gnuradio] 01/01: fec: conditionalize use of matplotlib in polar code helper functions.

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trondeau pushed a commit to branch master
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commit e0a70a9257290dbf43c2936acf6ccbb4393295cb
Author: Tom Rondeau <address@hidden>
Date:   Tue Oct 20 18:30:35 2015 -0400

    fec: conditionalize use of matplotlib in polar code helper functions.
    
    Make it so that we don't require matplotlib just to run QA tests.
---
 gr-fec/python/fec/polar/channel_construction.py     | 12 ++++++------
 gr-fec/python/fec/polar/channel_construction_bsc.py |  8 +++++---
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/gr-fec/python/fec/polar/channel_construction.py 
b/gr-fec/python/fec/polar/channel_construction.py
index a7f048c..477e1df 100644
--- a/gr-fec/python/fec/polar/channel_construction.py
+++ b/gr-fec/python/fec/polar/channel_construction.py
@@ -29,7 +29,6 @@ from channel_construction_bec import design_snr_to_bec_eta
 from channel_construction_bec import bhattacharyya_bounds
 from channel_construction_bsc import tal_vardy_tpm_algorithm
 from helper_functions import *
-import matplotlib.pyplot as plt
 
 
 Z_PARAM_FIRST_HEADER_LINE = "Bhattacharyya parameters (Z-parameters) for a 
polar code"
@@ -128,12 +127,13 @@ def main():
     z_params = load_z_parameters(m, design_snr, mu)
     z_bounds = bhattacharyya_bounds(design_snr, m)
     print(z_params[-10:])
-    plt.plot(z_params)
-    plt.plot(z_bounds)
-    plt.show()
+
+    if 0:
+        import matplotlib.pyplot as plt
+        plt.plot(z_params)
+        plt.plot(z_bounds)
+        plt.show()
 
 
 if __name__ == '__main__':
     main()
-
-
diff --git a/gr-fec/python/fec/polar/channel_construction_bsc.py 
b/gr-fec/python/fec/polar/channel_construction_bsc.py
index e16813f..77057a7 100755
--- a/gr-fec/python/fec/polar/channel_construction_bsc.py
+++ b/gr-fec/python/fec/polar/channel_construction_bsc.py
@@ -31,7 +31,6 @@ for an overview of different approaches
 from scipy.optimize import fsolve
 from scipy.special import erfc
 from helper_functions import *
-import matplotlib.pyplot as plt
 from channel_construction_bec import bhattacharyya_bounds
 
 
@@ -272,8 +271,11 @@ def main():
 
     z_params = tal_vardy_tpm_algorithm(m, design_snr, mu)
     print(z_params)
-    plt.plot(z_params)
-    plt.show()
+
+    if 0:
+        import matplotlib.pyplot as plt
+        plt.plot(z_params)
+        plt.show()
 
 
 if __name__ == '__main__':