/// <summary>
/// 判断指定骨骼数据是否与指定姿势匹配
/// </summary>
/// <param name="skeleton">骨骼数据</param>
/// <param name="posture">姿势</param>
/// <returns></returns>
public static bool matches(Skeleton skeleton, Posture posture)
{
PostureType postureType = posture.Type;
Posture pos = computePosture(skeleton, postureType);
return(matches(pos, posture));
}
/// <summary>
/// 计算指定骨骼在指定姿势类型下，对应的姿势
/// </summary>
/// <param name="skeleton">骨骼数据</param>
/// <param name="postureType">姿势类型（左臂、右臂、双臂）</param>
/// <returns></returns>
public static Posture computePosture(Skeleton skeleton, PostureType postureType)
{
Posture posture = new Posture(postureType);
List <VectorType> vectorTypeList = getVectorTypeList(postureType);
foreach (VectorType vectorType in vectorTypeList)
{
JointType jointType0, jointType1;
switch (vectorType)
{
case VectorType.ShoulderElbowLeft:
jointType0 = JointType.ShoulderLeft;
jointType1 = JointType.ElbowLeft;
break;
case VectorType.ElbowWristLeft:
jointType0 = JointType.ElbowLeft;
jointType1 = JointType.WristLeft;
break;
case VectorType.ShoulderElbowRight:
jointType0 = JointType.ShoulderRight;
jointType1 = JointType.ElbowRight;
break;
case VectorType.ElbowWristRight:
jointType0 = JointType.ElbowRight;
jointType1 = JointType.WristRight;
break;
default:
throw new Exception("vectorType is illegal.");
}
Joint joint0 = skeleton.Joints[jointType0];
Joint joint1 = skeleton.Joints[jointType1];
Vector vector = new Vector(joint1.Position.X - joint0.Position.X, joint1.Position.Y - joint0.Position.Y, joint1.Position.Z - joint0.Position.Z);
posture.setVector(vectorType, vector);
}
return(posture);
}
public static bool matches(Posture pos1, Posture pos2)
{
if (pos1.Type != pos2.Type)
{
return(false);
}
List <VectorType> vectorTypeList = getVectorTypeList(pos1.Type);
foreach (VectorType index in vectorTypeList)
{
double cosineSimilarity = computeCosineSimilarity(pos1.getVector(index), pos2.getVector(index));
if (cosineSimilarity < THRESHOLD)
{
return(false);
}
}
return(true);
}