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Models, Scripts, Sample Data

We provide a range of additional tools and information for our software here – from scripts in Python, to sample data for CGM2 or our software, alongside models like the Oxford Foot Model

Nexus Sample Data

Includes a variety of sports and gait data, captured and processed using the Plug-in Gait marker set, in addition to custom cluster-based marker sets and the Advanced Gait Workflow.

Shogun Sample Data

Contains data relating to setting up and solving to a custom skeleton in Shogun 1.2.

CGM2 Sample Data

Updating the Conventional Gait Model for the modern world.

Upper Limb Model

The Upper Limb Model is an extended version of the Conventional Gait Model (Plug-in Gait) written in Vicon BodyLanguage.

Cara Sample Data

This Cara sample data is a set of captures with a dense marker-set. It contains a ROM take, a four-camera calibration file and a number of .cara files with the ROM take solved at key steps in the data cleansing process.

Nexus Advanced Gait Workflow

A preconfigured set of capture and process steps intended to assist the user in capturing trials for SCoRE and SARA functional joint calibrations.

PyCara Examples

PyCara is a collection of Vicon Cara-related python utilities. PyCara contains subpackages allowing the user to script CaraPost processing (including blob detection and tracking), and to read both CaraPost files (.cara) and the capture files generated by CaraLive (.pico).


Blade Sample Data

Blade Sample Data to be used in conjunction with Blade 2 Tutorial – YouTube Series.

ProCalc Schemes

New templates available for Polygon 4.4.6 now. Vicon ProCalc schemes and example data for the TT Bike Fitting and Drop Jump Polygon Report Template Examples

BodyBuilder Models

Includes examples of the many BodyLanguage models which have been developed and are being used by Vicon customers.

Python – Gait Kinematics

This Python Code is an Example Code created to work in conjunction with Vicon Nexus 2 and processed Lower Body Plug-in Gait Data. The code needs to be run from within Vicon Nexus 2.

Python – Gait Kinetics

This Python Code is an Example Code created to work in conjunction with Vicon Nexus 2 and processed Lower Body Plug-in Gait Data. The code needs to be run from within Vicon Nexus 2.

Python – Plug In Gait to Excel

This Python Code is an Example Code created to work in conjunction with Vicon Nexus 2 and processed Lower Body Plug-in Gait Data.

Anonymize Reference Video Device ID

The intended use of this script is to anonymize reference video data. This script uses Haar cascades to identify if a face is present in a video and places a black box over each face in every frame of video that a face is detected.

Apply Offset

This script is intended to apply a numerical offset to a specified device channel. Input arguments are device ID, device output ID, device channel ID, and your specified offset to apply.

Custom Model Example

These are example scripts to provide an example for how to use the following Modules in Python and Matlab: NexusTrajectory, NexusSegment, NexusAngle

Extract EMG

This is an example code to extract EMG Data, calculate a linear envelope and present it in the Model Outputs.

FP COP LivePlot

This script is an example to show the use of the Python version of the Vicon Datastream SDK.  It shows a live plot of the center of pressure from the specified force plate in the trial.

Get Device Info Log

This script is to be used to help identify connected devices in the trial when working with the offline SDK to extract data in Python/Matlab.

Inclined Treadmill FP Properties

This script will calculate the position and orientation of instrumented treadmill force plates at any given incline.

Rotate Ref Vid

This script is intended to be used to rotate reference video so that if you captured your reference video rotated 90 degrees in an effort to get the height of your subject vs something like an overground walkway you can rotate this video so that when you import the trial into Polygon, you can use the rotated vertical video.

Start Stop Stamps

This script extracts the start/stop time from the trial xcp file and displays them in the Nexus log output.

Vicon File Backup

This script is to be used when you want to make a backup of nexus specific files (not trial data) so that you can move them to another PC.

Walking Speed Eclipse GCP

This script takes the average of the left and right walking speed parameters as calculated by the Calculate Gait Cycle Parameters pipeline op and writes this average to a new column in ProEclipse.

XCP Editor

This script can be used to manipulate which cameras are present in the XCP file. When removed from the XCP file,
an XML comment is added around that cameras info so Nexus will not recognize it.

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Small Medium Large
Chest 78.7cm / 31in 85.1cm / 33.5in 87.6cm / 34.5in
Waist 63.5cm / 25in 68.6cm / 27in 78.7cm / 31in
Hips 81.3cm / 32in 86.4cm / 34in 91.4cm / 36in
Inside Leg 66cm / 26in 69.9cm / 27.5in 77.5cm / 30.5in


Small Medium Large Extra Large
Chest 86.4cm / 34in 94cm / 37in 103cm / 40.6in 114.3cm / 44.5in
Waist 71.1cm / 28in 83.8cm / 33in 90cm / 35.4in 99.1cm / 39in
Hips 88.9cm / 35in 94cm / 37in 100cm / 39.4in 109.2cm / 43in
Inside Leg 66cm / 26in 69.2cm / 27.3in 71cm / 28.3in 81.3cm / 32in