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 At the core of Visual3D is the development of a flexible biomechanical modeling tool that can be used to define an unrestricted number of rigid segments and link them together in a systematic fashion. These segments may be linked implicitly through the motion capture data (e.g. segments in the experiment probably didn't disarticulate) or explicitly through the specification of constraints. The first scenario is handled in Visual3D by assuming that each segment is mathematically independent of all other segments (6 Degrees of Freedom). The second scenario is handled by allowing the specification of joint constraints ([[Visual3D:Documentation:Kinematics_and_Kinetics:Inverse_Kinematics#Inverse_Kinematics_Overview|Inverse Kinematics]]). At the core of Visual3D is the development of a flexible biomechanical modeling tool that can be used to define an unrestricted number of rigid segments and link them together in a systematic fashion. These segments may be linked implicitly through the motion capture data (e.g. segments in the experiment probably didn't disarticulate) or explicitly through the specification of constraints. The first scenario is handled in Visual3D by assuming that each segment is mathematically independent of all other segments (6 Degrees of Freedom). The second scenario is handled by allowing the specification of joint constraints ([[Visual3D:Documentation:Kinematics_and_Kinetics:Inverse_Kinematics#Inverse_Kinematics_Overview|Inverse Kinematics]]).
  
-NOTE: For markerless motion capture systems, Visual3D was updated in early 2021 to handle the rotation matrices needed to automatically build models. Customers who have not maintained Visual3D software support may need to contact C-Motion and restart the software support in order to get newer versions of Visual3D.+**NOTE**: For markerless motion capture systems, Visual3D was updated in early 2021 to handle the rotation matrices needed to automatically build models. Customers who have not maintained Visual3D software support may need to contact HAS-Motion and restart the software support in order to get newer versions of Visual3D.
  
 === Assign Model to Motion File === === Assign Model to Motion File ===
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 A segment may have, but does not necessarily have to have, inertial properties. A segment may have, but does not necessarily have to have, inertial properties.
  
-The [[Visual3D:Documentation:Modeling:Segments:Segment_Properties#Segment_Mass|default mass]] is based on [[[https://deepblue.lib.umich.edu/handle/2027.42/4540|Dempster's regression equations]]]. +The [[Visual3D:Documentation:Modeling:Segments:Segment_Properties#Segment_Mass|default mass]] is based on [[https://deepblue.lib.umich.edu/handle/2027.42/4540|Dempster's regression equations]]. 
-The [[Visual3D:Documentation:Modeling:Segments:Segment_Properties#Segment_Inertia|default moment of inertia and location of center of mass]] are computed assuming that a [[Visual3D:Documentation:Modeling:Segments:Segment_Properties#Segment_Geometry|segment as a geometrical shape]] (cylinder, cone, sphere, ellipsoid).+The [[Visual3D:Documentation:Modeling:Segments:Segment_Properties#Segment_Inertia|default moment of inertia and location of center of mass]] are computed assuming that a [[Visual3D:Documentation:Modeling:Segments:Segment_Properties#Segment_Geometry|segment has a geometrical shape]] (cylinder, cone, sphere, ellipsoid).
 Optionally, the user may specify explicitly the inertial properties of the segment. Optionally, the user may specify explicitly the inertial properties of the segment.
 A segment may have, but does not necessarily have to have, a decoration. A segment may have, but does not necessarily have to have, a decoration.
visual3d/documentation/modeling/modeling_overview.1735685856.txt.gz · Last modified: 2024/12/31 22:57 by wikisysop