本文整理汇总了C#中Bone.GetXAxis方法的典型用法代码示例。如果您正苦于以下问题：C# Bone.GetXAxis方法的具体用法？C# Bone.GetXAxis怎么用？C# Bone.GetXAxis使用的例子？那么恭喜您, 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Bone的用法示例。
在下文中一共展示了Bone.GetXAxis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: CheckOrientationalConstraint
// An orientational constraint is the twist of the bone around its own direction vector
// with respect to its parent
// It is defined as an allowed range betwen angles [start,end]
// where start != end && 0 < start, end <= 360
// If both start and end is 0 no twist constraint exist
/// <summary>
/// Checks if the bone has a legal rotation in regards to its parent, returns true if legal, false otherwise.
/// The out rotation gives the rotation the bone should be applied to to be inside the twist constraints
/// </summary>
/// <param name="b">The bone under consideration</param>
/// <param name="refBone">The parent of the bone, to check whether the child has legal rotation</param>
/// <param name="rotation">The rotation bone b should applie to be inside the constraints</param>
/// <returns></returns>
public bool CheckOrientationalConstraint(Bone b, Bone refBone, out Quaternion rotation)
{
if (b.Orientation.Xyz.IsNaN() || refBone.Orientation.Xyz.IsNaN())
{
rotation = Quaternion.Identity;
return false;
}
Vector3 thisY = b.GetYAxis();
Quaternion referenceRotation = refBone.Orientation * b.ParentPointer;
Vector3 reference = Vector3.Transform(
Vector3.Transform(Vector3.UnitZ, referenceRotation),
QuaternionHelper2.GetRotationBetween(
Vector3.Transform(Vector3.UnitY, referenceRotation),
thisY));
float twistAngle = MathHelper.RadiansToDegrees(Vector3.CalculateAngle(reference, b.GetZAxis()));
if (Vector3.CalculateAngle(reference, b.GetXAxis()) > Mathf.PI / 2) // b is twisted left with respect to parent
twistAngle = 360 - twistAngle;
float leftLimit = b.StartTwistLimit;
float rightLimit = b.EndTwistLimit;
float precision = 0.5f;
bool inside = (leftLimit >= rightLimit) ? // The allowed range is on both sides of the reference vector
inside = twistAngle - leftLimit >= precision || twistAngle - rightLimit <= precision :
inside = twistAngle - leftLimit >= precision && twistAngle - rightLimit <= precision;
if (!inside) // not inside constraints
{
// Create a rotation to the closest limit
float toLeft = Math.Min(360 - Math.Abs(twistAngle - leftLimit), Math.Abs(twistAngle - leftLimit));
float toRight = Math.Min(360 - Math.Abs(twistAngle - rightLimit), Math.Abs(twistAngle - rightLimit));
if (toLeft < toRight)
{
// Anti-clockwise rotation to left limit
rotation = Quaternion.FromAxisAngle(thisY, -MathHelper.DegreesToRadians(toLeft));
return true;
}
else
{
// Clockwise to right limit
rotation = Quaternion.FromAxisAngle(thisY, MathHelper.DegreesToRadians(toRight));
return true;
}
}
rotation = Quaternion.Identity;
return false;
}