====== Rectify ======
====Overview====
Rectifying a signal is a simple process that involves taking the absolute value of a bipolar signal to output a unipolar version. The **Rectify** command can be used to compute the absolute value of every element of a signal for use cases that require entirely positive signals.

Visual3D calculates signal rectification using the following formula:

x(ti)= abs(x(ti))

A visual example of what a rectified signal might look like:\\
{{:visual3d:documentation:pipeline:signal_commands:rectify_example.png|}}

====Pipeline Command====
The **Rectify** command can be found in the Pipeline Workshop within the Signal Math folder as so:

<code>
Rectify
! /SIGNAL_TYPES=
! /SIGNAL_FOLDER=ORIGINAL
! /SIGNAL_NAMES=
! /RESULT_TYPES=
! /RESULT_FOLDERS=PROCESSED
! /RESULT_NAME=
! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=
;
</code>

====Command Parameters====
The parameters that can be used to control the command are as follows:
|**Signal Types**|The type of signal to be rectified|
|**Signal Folder**|The name of the signal to be rectified|
|**Signal Names**|The name of the signal folder|
|**Result Types**|The type of the resulting signal|
|**Result Folders**|The name of the resulting folder|
|**Result Name**|The name of the resulting signal|
|**Apply As Suffix To Signal Name**|Add a suffix to the signal name|

====Command Dialog====
The command can be edited via text editor or via a dialog. The details on the command and the dialog are found below:

{{:RectifyDlg.png}}



====Example: Rectifying Hip Moment Signal====
This example shows how the Rectify command can be used on a hip moment signal to show only the absolute value of each component:
<code>
Rectify
/SIGNAL_TYPES=LINK_MODEL_BASED
! /SIGNAL_FOLDER=ORIGINAL
 /SIGNAL_NAMES=LHipMoment
 /RESULT_TYPES=LINK_MODEL_BASED
! /RESULT_FOLDERS=PROCESSED
 /RESULT_NAME=LHip_Rectified
! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=
;
</code>