# HG changeset patch
# User Chris Cannam
# Date 1196083994 0
# Node ID db8fcd280234d0d0403716bdc8d8e8774d3b81ad
# Parent  516819f2b97b7dd5b03febef1122e097e5cebbfb
* Fix log range mapper bug

diff -r 516819f2b97b -r db8fcd280234 base/RangeMapper.cpp
--- a/base/RangeMapper.cpp	Fri Nov 23 16:48:23 2007 +0000
+++ b/base/RangeMapper.cpp	Mon Nov 26 13:33:14 2007 +0000
@@ -76,9 +76,7 @@
 int
 LogRangeMapper::getPositionForValue(float value) const
 {
-    float mapped = m_ratio * log10(value);
-    int position = lrintf(((mapped - m_minlog) / (m_maxlog - m_minlog))
-                          * (m_maxpos - m_minpos));
+    int position = (log10(value) - m_minlog) * m_ratio + m_minpos;
     if (position < m_minpos) position = m_minpos;
     if (position > m_maxpos) position = m_maxpos;
 //    std::cerr << "LogRangeMapper::getPositionForValue: " << value << " -> "