From: yomguy <yomguy@parisson.com>
Date: Thu, 11 Nov 2010 22:18:45 +0000 (+0000)
Subject: fix peaks
X-Git-Tag: 0.3.2~89
X-Git-Url: https://git.parisson.com/?a=commitdiff_plain;h=ef42e35217f189d9163af10581fd73304ced03ed;p=timeside.git

fix peaks
---

diff --git a/timeside/grapher/core.py b/timeside/grapher/core.py
index 0be28bf..298a480 100644
--- a/timeside/grapher/core.py
+++ b/timeside/grapher/core.py
@@ -402,6 +402,22 @@ class WaveformImageSimple(object):
         contour = contour-min(contour)
         return contour/max(contour)
         
+    def peaks(self, samples):
+        """ Find the minimum and maximum peak of the samples.
+        Returns that pair in the order they were found.
+        So if min was found first, it returns (min, max) else the other way around. """
+
+        max_index = numpy.argmax(samples)
+        max_value = samples[max_index]
+
+        min_index = numpy.argmin(samples)
+        min_value = samples[min_index]
+
+        if min_index < max_index:
+            return (min_value, max_value)
+        else:
+            return (max_value, min_value)
+            
     def draw_peaks(self, x, peaks):
         """ draw 2 peaks at x using the spectral_centroid for color """