本文整理汇总了C++中Matrix3f::RotationEuler方法的典型用法代码示例。如果您正苦于以下问题：C++ Matrix3f::RotationEuler方法的具体用法？C++ Matrix3f::RotationEuler怎么用？C++ Matrix3f::RotationEuler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Matrix3f的用法示例。
在下文中一共展示了Matrix3f::RotationEuler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:
//--------------------------------------------------------------------------------
void Cone3f::SampleNormal( Vector3f& normal, float theta, float height ) const
{
// Define the axis of the cylinder, and find its length.
Vector3f v = P1 - P2;
Vector3f vnorm = Vector3f::Normalize( v );
float l = v.Magnitude();
Vector3f up = Vector3f( 0.0f, 1.0f, 0.0f );
// Find the unit vector perpendicular to the axis, that is pointing closest to the (0,1,0) direction.
// If the axis points in the (0,1,0) direction, then use (1,0,0) as the unit vector.
Vector3f unit;
if ( vnorm == up || vnorm == -up ) {
unit = Vector3f( 1.0f, 0.0f, 0.0f );
} else {
Vector3f temp = Vector3f::Cross( vnorm, up );
unit = Vector3f::Cross( temp, vnorm );
unit.Normalize();
}
float slope = ( R2 - R1 ) / l;
float radius = R2 + slope * height * l;
// Calculate the position, which is a combination of an offset to the p2 endpoint,
// shifted along the axis of the cylinder, and a rotated and scaled radius component.
Matrix3f r;
r.RotationEuler( vnorm, theta );
// Calculate the normal vector, which is dependent on the delta in radii at each
// end of the cylinder.
normal = r * unit * radius + vnorm * slope * radius;
normal.Normalize();
}