Array and Matrix Functions
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Arrays
Vector
Vector(a,b, etc)
creates a vector of the number of components specified
- ! Create a metric signal with 2 components and one frame
- [Metric_Explicit]
- ! /RESULT_METRIC_FOLDER=PROCESSED
- /RESULT_METRIC_NAME=VEC2
- /METRIC_VALUE=2+3
- ;
- ! Create a vector containing a constant, a two dimensional metric and a 3 dimensional model based signal.
- Evaluate_Expression
- /EXPRESSION=vector (1, METRIC::PROCESSED::VEC2, LINK_MODEL_BASED::ORIGINAL::RKNEE_ANGLE)
- ! /SIGNAL_TYPES=
- ! /SIGNAL_FOLDER=ORIGINAL
- ! /SIGNAL_NAMES=
- ! /RESULT_TYPES=DERIVED
- ! /RESULT_FOLDERS=PROCESSED
- /RESULT_NAME=TEST
- ! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE
- ;
- The resulting signal will have the first three columns (one for the constant, one for the vector of 2 components) buffered to the number of frames of RKNEE_ANGLE by replicating the first frame.
List
- list(a,b,etc) -- creates a list (column vector) or the number of rows specified:
Unit_Vector
- unit_vector (a, b, etc) -- creates a unit vector of the number of components specified:
Rotation Matrices
Rotation Multiply
Rotation_Multiply(a,b)
- Example: Multiply two ROTATION signals
- Evaluate_Expression
- /EXPRESSION=ROTATION_MULTIPLY(ROTATION_INVERSE(ROTATION::ORIGINAL::PELVIS_SHIFTED_4x4),CURRENT_SIGNAL)
- /SIGNAL_TYPES=ROTATION
- ! /SIGNAL_FOLDER=ORIGINAL
- ! /SIGNAL_NAMES=
- /RESULT_TYPES=ROTATION
- ! /RESULT_FOLDERS=PROCESSED
- /RESULT_NAME=_MULT
- /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=TRUE
- ;
Rotation Inverse
Rotation_Inverse(a)
- Example: Inverse of a 4x4 ROTATION signal or a 3x3 LINK_MODEL_BASED ROTATION
- A good description of the inverse of a ROTATION signals can be found [here]
- Evaluate_Expression
- /EXPRESSION=ROTATION_INVERSE(ROTATION::ORIGINAL::PELVIS_SHIFTED_4x4)
- /SIGNAL_TYPES=ROTATION
- ! /SIGNAL_FOLDER=ORIGINAL
- ! /SIGNAL_NAMES=
- /RESULT_TYPES=ROTATION
- ! /RESULT_FOLDERS=PROCESSED
- /RESULT_NAME=_INV
- /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=TRUE
- ;
Rotation Transpose
Rotation_Transpose(a)
- Example: Transpose of a 3x3 LINK_MODEL_BASED ROTATION signal
- Evaluate_Expression
- /EXPRESSION=ROTATION_TRANSPOSE(ROTATION::ORIGINAL::PELVIS_SHIFTED_4x4)
- /SIGNAL_TYPES=ROTATION
- ! /SIGNAL_FOLDER=ORIGINAL
- ! /SIGNAL_NAMES=
- /RESULT_TYPES=ROTATION
- ! /RESULT_FOLDERS=PROCESSED
- /RESULT_NAME=_T
- /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=TRUE
- ;