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22 lines
904 B
C++
22 lines
904 B
C++
--- ./qtiplot/src/plot2D/Log2ScaleEngine.cpp.orig 2009-10-18 10:44:49.000000000 +0400
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+++ ./qtiplot/src/plot2D/Log2ScaleEngine.cpp 2009-10-18 18:54:12.000000000 +0400
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@@ -160,8 +160,8 @@
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if ( numTicks > 10000 )
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numTicks = 10000;
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- const double lxmin = ::log2(interval.minValue());
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- const double lxmax = ::log2(interval.maxValue());
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+ const double lxmin = ::log(interval.minValue())*M_LOG2E;
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+ const double lxmax = ::log(interval.maxValue())*M_LOG2E;
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const double lstep = (lxmax - lxmin) / double(numTicks - 1);
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QwtValueList ticks;
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@@ -224,6 +224,6 @@
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QwtDoubleInterval Log2ScaleEngine::log2(
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const QwtDoubleInterval &interval) const
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{
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- return QwtDoubleInterval(::log2(interval.minValue()),
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- ::log2(interval.maxValue()));
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+ return QwtDoubleInterval(::log(interval.minValue())*M_LOG2E,
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+ ::log(interval.maxValue())*M_LOG2E);
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}
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