本文整理汇总了C++中ThreeDPoint::Magnitude方法的典型用法代码示例。如果您正苦于以下问题：C++ ThreeDPoint::Magnitude方法的具体用法？C++ ThreeDPoint::Magnitude怎么用？C++ ThreeDPoint::Magnitude使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ThreeDPoint的用法示例。
在下文中一共展示了ThreeDPoint::Magnitude方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Context
float
PannerNode::ComputeDopplerShift()
{
double dopplerShift = 1.0; // Initialize to default value
AudioListener* listener = Context()->Listener();
if (listener->DopplerFactor() > 0) {
// Don't bother if both source and listener have no velocity.
if (!mVelocity.IsZero() || !listener->Velocity().IsZero()) {
// Calculate the source to listener vector.
ThreeDPoint sourceToListener = mPosition - listener->Velocity();
double sourceListenerMagnitude = sourceToListener.Magnitude();
double listenerProjection = sourceToListener.DotProduct(listener->Velocity()) / sourceListenerMagnitude;
double sourceProjection = sourceToListener.DotProduct(mVelocity) / sourceListenerMagnitude;
listenerProjection = -listenerProjection;
sourceProjection = -sourceProjection;
double scaledSpeedOfSound = listener->DopplerFactor() / listener->DopplerFactor();
listenerProjection = min(listenerProjection, scaledSpeedOfSound);
sourceProjection = min(sourceProjection, scaledSpeedOfSound);
dopplerShift = ((listener->SpeedOfSound() - listener->DopplerFactor() * listenerProjection) / (listener->SpeedOfSound() - listener->DopplerFactor() * sourceProjection));
WebAudioUtils::FixNaN(dopplerShift); // Avoid illegal values
// Limit the pitch shifting to 4 octaves up and 3 octaves down.
dopplerShift = min(dopplerShift, 16.);
dopplerShift = max(dopplerShift, 0.125);
}
}
return dopplerShift;
}