python/demos/: minor plot improvements

diff --git a/python/demos/demo_mel-energy.py b/python/demos/demo_mel-energy.py
index c671207..ac09863 100755 (executable)
--- a/python/demos/demo_mel-energy.py
+++ b/python/demos/demo_mel-energy.py
@@ -61,8 +61,9 @@ if 1:
         ax.xaxis.set_visible(False)
         ax.yaxis.set_visible(False)
         ax.axis(xmax = all_desc_times[-1], xmin = all_desc_times[0])
-        ax.annotate('band %d' % i, xy=(-10, 10),  xycoords='axes points',
+        ax.annotate('band %d' % i, xy=(-10, 0),  xycoords='axes points',
                 horizontalalignment='right', verticalalignment='bottom',
+                size = 'xx-small',
                 )
     set_xlabels_sample2time( ax, all_desc_times[-1], samplerate) 
     #plt.ylabel('spectral descriptor value')

diff --git a/python/demos/demo_pitch.py b/python/demos/demo_pitch.py
index 86f95c6..81f17cd 100755 (executable)
--- a/python/demos/demo_pitch.py
+++ b/python/demos/demo_pitch.py
@@ -56,9 +56,11 @@ confidences = array(confidences[skip:])
 times = [t * hop_s for t in range(len(pitches))]
 
 fig = plt.figure()
+
 ax1 = fig.add_subplot(311)
 ax1 = get_waveform_plot(filename, samplerate = samplerate, block_size = hop_s, ax = ax1)
-ax1.set_xticklabels([])
+plt.setp(ax1.get_xticklabels(), visible = False)
+ax1.set_xlabel('')
 
 def array_from_text_file(filename, dtype = 'float'):
     import os.path
@@ -87,7 +89,8 @@ cleaned_pitches = ma.masked_where(confidences < tolerance, cleaned_pitches)
 ax2.plot(times, cleaned_pitches, '.-')
 #ax2.axis( ymin = 0.9 * cleaned_pitches.min(), ymax = 1.1 * cleaned_pitches.max() )
 #ax2.axis( ymin = 55, ymax = 70 )
-ax2.set_xticklabels([])
+plt.setp(ax2.get_xticklabels(), visible = False)
+ax2.set_ylabel('f0 (Hz)')
 
 # plot confidence
 ax3 = fig.add_subplot(313, sharex = ax1)
@@ -96,6 +99,7 @@ ax3.plot(times, confidences)
 # draw a line at tolerance
 ax3.plot(times, [tolerance]*len(confidences))
 ax3.axis( xmin = times[0], xmax = times[-1])
-plt.show()
+ax3.set_ylabel('condidence')
 set_xlabels_sample2time(ax3, times[-1], samplerate)
-#plt.savefig(os.path.basename(filename) + '.png', dpi=200)
+plt.show()
+#plt.savefig(os.path.basename(filename) + '.svg')

diff --git a/python/demos/demo_specdesc.py b/python/demos/demo_specdesc.py
index ccf27a1..b152029 100755 (executable)
--- a/python/demos/demo_specdesc.py
+++ b/python/demos/demo_specdesc.py
@@ -71,7 +71,7 @@ if 1:
         ax.xaxis.set_visible(False)
         ax.yaxis.set_visible(False)
         ax.axis(xmax = all_desc_times[-1], xmin = all_desc_times[0])
-        ax.annotate(method, xy=(-10, 10),  xycoords='axes points',
+        ax.annotate(method, xy=(-10, 0),  xycoords='axes points',
                 horizontalalignment='right', verticalalignment='bottom',
                 )
     set_xlabels_sample2time(ax, all_desc_times[-1], samplerate)