visual3d:documentation:kinematics_and_kinetics:external_forces:modifying_c3d_parameters
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:modifying_c3d_parameters [2024/06/19 13:57] – created sgranger | visual3d:documentation:kinematics_and_kinetics:external_forces:modifying_c3d_parameters [2024/07/17 15:45] (current) – created sgranger | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| + | ====== Modifying C3D Parameters ====== | ||
| + | |||
| C3D parameters can be modified in Visual3D in the File menu commands or via the Pipeline commands. | C3D parameters can be modified in Visual3D in the File menu commands or via the Pipeline commands. | ||
| - | ===== Modify Force Platform parameters | + | ==== Modify Force Platform parameters ==== |
| A common challenge for a manufacturer creating C3D formatted datafiles is the declaration of the Force Platform properties in the parameter section of the file. | A common challenge for a manufacturer creating C3D formatted datafiles is the declaration of the Force Platform properties in the parameter section of the file. | ||
| Line 23: | Line 25: | ||
| **CORNERS**= The (x,y,z) coordinates of the force platform corners in the laboratory coordinate system. **Note:** that there is a specific ordering of the four corners. | **CORNERS**= The (x,y,z) coordinates of the force platform corners in the laboratory coordinate system. **Note:** that there is a specific ordering of the four corners. | ||
| - | {{Amti4.png}} | + | {{:Amti4.png}} |
| This dialog is used to modify the force platform parameters (under the file menu in Visual3D) that specify how the ANALOG signals stored in the data file are to be transformed into the GRFORCE, COFP, and FREEMOMENT signals. **Note:** the number of places that you can go wrong. | This dialog is used to modify the force platform parameters (under the file menu in Visual3D) that specify how the ANALOG signals stored in the data file are to be transformed into the GRFORCE, COFP, and FREEMOMENT signals. **Note:** the number of places that you can go wrong. | ||
| - | ===== Modify_Point_Parameters Pipeline Command | + | ==== Modify_Point_Parameters Pipeline Command ==== |
| The command **Modify_Point_Parameters** will modify the POINT LABELS (e.g. Marker Names) in the C3D file. The LABELS listed will be applied to the POINT parameters in the order listed in the C3D file. If fewer LABELS are specified in the command than exist in the C3D file, then only the number of LABELS specified will be modified. The command is below: | The command **Modify_Point_Parameters** will modify the POINT LABELS (e.g. Marker Names) in the C3D file. The LABELS listed will be applied to the POINT parameters in the order listed in the C3D file. If fewer LABELS are specified in the command than exist in the C3D file, then only the number of LABELS specified will be modified. The command is below: | ||
| Line 45: | Line 47: | ||
| </ | </ | ||
| - | ===== Modify_Analog_Parameters Pipeline Command | + | ==== Modify_Analog_Parameters Pipeline Command ==== |
| This command can be used to change a selection of the ANALOG parameters in a C3D file. There must be the same number of values in the LABELS, SCALE, and OFFSET entries. The command will modify the parameters in order. For example, if two entries are specified, the first two entries in the ANALOG parameters will be modified; the remaining parameters will remain the same. | This command can be used to change a selection of the ANALOG parameters in a C3D file. There must be the same number of values in the LABELS, SCALE, and OFFSET entries. The command will modify the parameters in order. For example, if two entries are specified, the first two entries in the ANALOG parameters will be modified; the remaining parameters will remain the same. | ||
| Line 91: | Line 93: | ||
| </ | </ | ||
| - | ==== Common ANALOG Parameters | + | === Common ANALOG Parameters === |
| Common parameters that Visual3D expects to be in the ANALOG Section of the C3D File. | Common parameters that Visual3D expects to be in the ANALOG Section of the C3D File. | ||
visual3d/documentation/kinematics_and_kinetics/external_forces/modifying_c3d_parameters.1718805430.txt.gz · Last modified: 2024/06/19 13:57 by sgranger