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fix sinusoidal

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bolero-MURAKAMI 2012-05-01 11:32:48 +09:00
parent bafd1004dd
commit 51a7a4c86c
4 changed files with 55 additions and 17 deletions
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14
sprout/iterator/sinusoid_iterator.hpp
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@ -36,12 +36,14 @@ namespace sprout {
difference_type index_;
value_type frequency_;
value_type amplitude_;
value_type phase_;
value_type d_;
private:
explicit SPROUT_CONSTEXPR sinusoid_iterator(sinusoid_iterator const& other, difference_type index)
: index_(index)
, frequency_(other.frequency_)
, amplitude_(other.amplitude_)
, phase_(other.phase_)
, d_(other.d_)
{}
public:
@ -49,17 +51,20 @@ namespace sprout {
: index_()
, frequency_(1)
, amplitude_(1)
, phase_(0)
, d_(value_type(2) * sprout::math::pi<value_type>())
{}
sinusoid_iterator(sinusoid_iterator const&) = default;
explicit SPROUT_CONSTEXPR sinusoid_iterator(
difference_type index,
value_type const& frequency = 1,
value_type const& amplitude = 1
value_type const& amplitude = 1,
value_type const& phase = 0
)
: index_(index)
, frequency_(frequency)
, amplitude_(amplitude)
, phase_(phase)
, d_(value_type(2) * sprout::math::pi<value_type>() * frequency)
{}
template<typename U>
@ -67,6 +72,7 @@ namespace sprout {
: index_(it.index_)
, frequency_(it.frequency_)
, amplitude_(it.amplitude_)
, phase_(it.phase_)
, d_(it.d_)
{}
template<typename U>
@ -84,6 +90,9 @@ namespace sprout {
SPROUT_CONSTEXPR value_type const& amplitude() const {
return amplitude_;
}
SPROUT_CONSTEXPR value_type const& phase() const {
return phase_;
}
SPROUT_CONSTEXPR reference operator*() const {
using std::sin;
return amplitude_ * sin(d_ * value_type(index_));
@ -137,9 +146,10 @@ namespace sprout {
}
void swap(sinusoid_iterator& other) {
using std::swap;
swap(index_, other.index_);
swap(frequency_, other.frequency_);
swap(amplitude_, other.amplitude_);
swap(index_, other.index_);
swap(phase_, other.phase_);
swap(d_, other.d_);
}
};