HAS-Motion Software Documentation

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this script is explained in the virtual lab direction of progression tutorial. this script outlines method 1.

before running this script:

• a static trial must be loaded into the workspace
• a model template (with modified virtual lab) must be loaded into the workspace
• a dynamic trial must be loaded into the workspace

note: a modified virtual lab follows the same outline as the dynamic virtual lab, except instead of using the lab_x landmark, the dir_prog_x landmark is used. an example of this model template can be found here.

**__add_a_comment__**
! /comment= 1.  find the rotation between the lab and the pelvis segment  (trunk_rot) 
;

compute_model_based_data
/result_name=rpv_lab_rot
/function=joint_rotation
/segment=rpv
! /reference_segment=lab
/resolution_coordinate_system=
! /use_cardan_sequence=false
! /normalization=false
! /normalization_method=
! /normalization_metric=
! /negatex=false
! /negatey=false
! /negatez=false
! /axis1=x
! /axis2=y
! /axis3=z
;

**__add_a_comment__**
! /comment= 2. project the pelvis' coordinate system onto the floor: 
;

! project the y axis of the pelvis' coordinate system on the floor, then find  the magnitude to calculate the unit vector

evaluate_expression
/expression=vector (link_model_based::original::rpv_lab_rot::4 , link_model_based::original::rpv_lab_rot::5 , 0 )
/result_name=rpv_lab_y_proj
! /result_type=derived
/result_folder=progression
;

signal_magnitude
/signal_types=derived
/signal_folder=progression
/signal_names=rpv_lab_y_proj
! /result_types=
/result_folder=progression
! /result_names=
/result_suffix=_mag
;

divide_signals
/signal_types=derived+derived
/signal_folder=progression+progression
/signal_names=rpv_lab_y_proj+rpv_lab_y_proj_mag
/component_sequence=all
/result_name=rpv_lab_y_proj_unit
/result_folder=progression
;

! create the z unit vector (0,0,1)

evaluate_expression
/expression=vector (0,0,1) * ( ( frame_numbers::original::frames * 0 + 1 ) ) 
/result_name=rpv_lab_z_proj_unit
/result_type=derived
/result_folder=progression
;

! create the x unit vector by crossing the y and z unit vectors

evaluate_expression
/expression=cross ( derived::progression::rpv_lab_y_proj_unit , derived::progression::rpv_lab_z_proj_unit )
/result_name=rpv_lab_x_proj_unit
/result_type=derived
/result_folder=progression
;

**__add_a_comment__**
! /comment= calculate the metric direction of progression from the x unit vector
;

metric_mean
/result_metric_name=rpv_lab_x_proj_unit
! /apply_as_suffix_to_signal_name=false
/result_metric_folder=progression
/signal_types=derived
/signal_names=rpv_lab_x_proj_unit
/signal_folder=progression
/signal_components=
/component_sequence=all
/event_sequence=
/exclude_events=
! /generate_mean_and_stddev=true
! /append_to_existing_values=false
;

**__add_a_comment__**
! /comment=create the virtual lab using x unit vector of the direction of progression 
;

set_pipeline_parameter_from_expression
/parameter_name=rpv_prog_ml
/expression=0.1 * ( metric::progression::rpv_lab_x_proj_unit_mean::x )
/as_integer=false
;

set_pipeline_parameter_from_expression
/parameter_name=rpv_prog_ap
/expression=0.1 * ( metric::progression::rpv_lab_x_proj_unit_mean::y )
/as_integer=false
;

add_landmark
/landmark_name=dir_prog_x
! /calibration_file=
! /user_generated=true
! /use_percentage=false
! /calibration_only=false
! /use_targets=false
/segment_name=lab
! /target_types=
! /target_names=
/mcs_ml=::rpv_prog_ml
/mcs_ap=::rpv_prog_ap
/mcs_axial=0
! /landmark_location=
! /reference_location_type=
! /reference_location_name=
! /use_reference_location=false
;

build_model
! /calibration_file=
! /rebuild_all_models=false
! /display_results=true
;


recalc

;