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--- visual3d:documentation:pipeline:signal_commands:impulse [2024/06/19 13:38] – removed sgranger
+++ visual3d:documentation:pipeline:signal_commands:impulse [2024/07/17 15:46] (current) – created sgranger
@@ Line 1: / Line 1: @@
+====== Impulse ======
+When calculating impulse, the first step is to break the signal into two signals which only contain positive or negative values.
+Note that this script makes use of the [[Visual3D:Documentation:Pipeline:Expressions:Expressions_Overview#CURRENT_SIGNAL|Current_Signal]] function within Evaluate Expression.
+\\
+<code>
+! Set all frames for all three components to DATA NOT FOUND for any frame
+!   ABOVE zero
+Evaluate_Expression
+/EXPRESSION= ( CURRENT_SIGNAL < 0 ) / ( CURRENT_SIGNAL < 0 ) * CURRENT_SIGNAL
+/SIGNAL_TYPES=LINK_MODEL_BASED
+/SIGNAL_FOLDER=ORIGINAL
+/SIGNAL_NAMES=RGRF+LGRF
+! /RESULT_TYPES=DERIVED
+/RESULT_FOLDERS=IMPULSE
+/RESULT_NAME=_Neg
+/APPLY_AS_SUFFIX_TO_SIGNAL_NAME=TRUE
+;
+! Set all frames for all three components to DATA NOT FOUND for any frame
+!   BELOW zero
+Evaluate_Expression
+/EXPRESSION=( CURRENT_SIGNAL > 0 ) / ( CURRENT_SIGNAL > 0 ) * CURRENT_SIGNAL
+/SIGNAL_TYPES=LINK_MODEL_BASED
+/SIGNAL_FOLDER=ORIGINAL
+/SIGNAL_NAMES=RGRF+LGRF
+! /RESULT_TYPES=DERIVED
+/RESULT_FOLDERS=IMPULSE
+/RESULT_NAME=_Pos
+/APPLY_AS_SUFFIX_TO_SIGNAL_NAME=TRUE
+;
+! Integrate over stance
+Metric_Integrate
+/RESULT_METRIC_FOLDER=IMPULSE
+/RESULT_METRIC_NAME=
+/APPLY_AS_SUFFIX_TO_SIGNAL_NAME=TRUE
+/SIGNAL_TYPES=DERIVED+DERIVED
+/SIGNAL_FOLDER=IMPULSE+IMPULSE
+/SIGNAL_NAMES=RGRF_Neg+RGRF_Pos
+/COMPONENT_SEQUENCE=ALL
+/EVENT_SEQUENCE=RON+ROFF
+/EXCLUDE_EVENTS=
+/SEQUENCE_PERCENT_START=
+/SEQUENCE_PERCENT_END=
+! /GENERATE_MEAN_AND_STDDEV=TRUE
+! /APPEND_TO_EXISTING_VALUES=FALSE
+;
+Metric_Integrate
+/RESULT_METRIC_FOLDER=IMPULSE
+/RESULT_METRIC_NAME=
+/APPLY_AS_SUFFIX_TO_SIGNAL_NAME=TRUE
+/SIGNAL_TYPES=DERIVED+DERIVED
+/SIGNAL_FOLDER=IMPULSE+IMPULSE
+/SIGNAL_NAMES=LGRF_Neg+LGRF_Pos
+/COMPONENT_SEQUENCE=ALL
+/EVENT_SEQUENCE=LON+LOFF
+/EXCLUDE_EVENTS=
+/SEQUENCE_PERCENT_START=
+/SEQUENCE_PERCENT_END=
+! /GENERATE_MEAN_AND_STDDEV=TRUE
+! /APPEND_TO_EXISTING_VALUES=FALSE
+;
+</code>