visual3d:documentation:kinematics_and_kinetics:external_forces:force_assignment_quality_assurance
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
visual3d:documentation:kinematics_and_kinetics:external_forces:force_assignment_quality_assurance [2024/06/18 13:28] – sgranger | visual3d:documentation:kinematics_and_kinetics:external_forces:force_assignment_quality_assurance [2024/07/17 15:45] (current) – created sgranger | ||
---|---|---|---|
Line 1: | Line 1: | ||
- | ====== | + | ====== |
+ | |||
+ | ===== Background | ||
Force Assignments are used throughout Visual3D - and it's important to make sure they' | Force Assignments are used throughout Visual3D - and it's important to make sure they' | ||
Line 7: | Line 9: | ||
For information about how force assignments are created, see [[Visual3D: | For information about how force assignments are created, see [[Visual3D: | ||
- | ====== Command | + | ===== Command ===== |
**Force_Assignment_Quality_Assurance** | **Force_Assignment_Quality_Assurance** | ||
Line 19: | Line 21: | ||
! /FP_MIN=40 | ! /FP_MIN=40 | ||
**;** | **;** | ||
- | ====== Breakdown | + | ===== Breakdown ===== |
This command uses multiple tests to check if the force assignments are created correctly. Users should still manually check that force assignments are created correctly. | This command uses multiple tests to check if the force assignments are created correctly. Users should still manually check that force assignments are created correctly. | ||
- | ==== COP Distance Test ==== | + | === COP Distance Test === |
Force assignments are created when a segment is within a specified distance from the center of pressure. This distance is stored as the [[Visual3D: | Force assignments are created when a segment is within a specified distance from the center of pressure. This distance is stored as the [[Visual3D: | ||
Line 29: | Line 31: | ||
It is always recommended to leave this value as 0.2 meters, unless you have a very good reason to change this. For some reason, this value has been set to 20 meters in a lot of user's templates. If you receive this warning, it is recommended to just change the [[Visual3D: | It is always recommended to leave this value as 0.2 meters, unless you have a very good reason to change this. For some reason, this value has been set to 20 meters in a lot of user's templates. If you receive this warning, it is recommended to just change the [[Visual3D: | ||
- | ==== Filter Test ==== | + | === Filter Test === |
This check will not modify anything, but a warning will be displayed to ensure your filtering is set up as desired. | This check will not modify anything, but a warning will be displayed to ensure your filtering is set up as desired. | ||
Line 39: | Line 41: | ||
Visual3D will only create the FORCE, COFP, and FREEMOMENT folders from the processed ANALOG signals if you have specified to use the [[Visual3D: | Visual3D will only create the FORCE, COFP, and FREEMOMENT folders from the processed ANALOG signals if you have specified to use the [[Visual3D: | ||
- | ==== FP Zero Test ==== | + | === FP Zero Test === |
In your force platform parameters, there is an option to zero the force platforms using a specified frame range. This is specified in your motion capture system, and is called the [[Visual3D: | In your force platform parameters, there is an option to zero the force platforms using a specified frame range. This is specified in your motion capture system, and is called the [[Visual3D: | ||
Line 47: | Line 49: | ||
Nothing in your file will be modified from this test, but a warning will be displayed for you to check the zero values | Nothing in your file will be modified from this test, but a warning will be displayed for you to check the zero values | ||
- | ==== Remove Incomplete Assignment Test ==== | + | === Remove Incomplete Assignment Test === |
You do not want to calculate kinetics using incomplete assignments, | You do not want to calculate kinetics using incomplete assignments, | ||
- | ==== COP Distance Test ==== | + | === COP Distance Test === |
Uses: | Uses: | ||
Line 61: | Line 63: | ||
The signal used internally is normalized to the segment length | The signal used internally is normalized to the segment length | ||
- | ==== GRF Max Test ==== | + | === GRF Max Test === |
Uses: | Uses: | ||
Line 72: | Line 74: | ||
The signal is normalized to the mass of the subject. | The signal is normalized to the mass of the subject. | ||
- | ==== Stance Time Test ==== | + | === Stance Time Test === |
Uses: | Uses: | ||
Line 83: | Line 85: | ||
It is expected that the stance time will be above 0.2 seconds and below 1 second. The user should modify this as necessary. | It is expected that the stance time will be above 0.2 seconds and below 1 second. The user should modify this as necessary. | ||
- | ==== Segment Position Test ==== | + | === Segment Position Test === |
For each force assignment, the proximal and distal end of the segment is projected onto the force platform. If the proximal and distal ends are not on the force platform for the entire assignment, the force assignment is removed. | For each force assignment, the proximal and distal end of the segment is projected onto the force platform. If the proximal and distal ends are not on the force platform for the entire assignment, the force assignment is removed. |
visual3d/documentation/kinematics_and_kinetics/external_forces/force_assignment_quality_assurance.1718717293.txt.gz · Last modified: 2024/06/18 13:28 by sgranger