===== Distance Along Path =====

The command Distance_Along_Path computes the distance travelled by a vector from the start to point p. In the figure below, the green line is the path travelled from the start to point P.

{{:On_off_axis_path.gif}}

==== Example: Distance Travelled by Target ====

The pipeline command below will calculate the distance travelled by the MID_PSIS [[visual3d:documentation:c3d_signal_types:target_data_type|TARGET]] along its path.

<code>
Distance_Along_Path
/SIGNAL_TYPES=TARGET
/SIGNAL_FOLDER=ORIGINAL
/SIGNAL_NAMES=MID_PSIS
/RESULT_FOLDERS=PROCESSED
/RESULT_NAME=PSIS_DISTANCE
! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=
! /EVENT_SEQUENCE=
! /EXCLUDE_EVENTS=
;
</code>

==== See Also ===

Visual3D also contains commands for the [[visual3d:documentation:pipeline:signal_commands:distance_perpendicular_to_path|Distance Perpendicular to Path]] and [[visual3d:documentation:pipeline:signal_commands:distance_parallel_to_path|Distance Parallel to Path]]. Or return to the [[visual3d:documentation:pipeline:signal_commands:signal_commands_overview|Signal Commands]] overview.