visual3d:documentation:modeling:functional_joints:example_-_functional_knee
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| visual3d:documentation:modeling:functional_joints:example_-_functional_knee [2024/06/14 17:23] – created sgranger | visual3d:documentation:modeling:functional_joints:example_-_functional_knee [2025/07/30 18:55] (current) – sgranger | ||
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| - | |**Language: | + | ====== Example |
| - | |===== Contents =====\\ \\ \\ \\ * [[# | + | When defining the functional knee joint, the calculation defines the axis of rotation, but not the location on the axis. \\ |
| + | Two additional landmarks (RKneMed & LKneMed) must be created off the position of the mediolateral knee targets. \\ | ||
| + | [[https://www.has-motion.com/ | ||
| - | \\ | + | 1) This tutorial will use the **Static.c3d** and **Functional Knee.c3d** files. \\ |
| - | When defining | + | 2) The Functional Hip.c3d file is used for the [[Visual3D:Documentation: |
| - | \\ | + | 3) FunctionalJoints_Hip_Knee.cmo contains a static trial with both the functional hip and knee defined. \\ |
| - | Two additional landmarks (RKneMed & LKneMed) must be created off the position of the mediolateral knee targets.\\ | + | |
| - | \\ | + | |
| - | [[https://www.has-motion.com/ | + | |
| + | **The calculation of functional joints is described [[Visual3D: | ||
| - | 1) This tutorial will use the **Static.c3d** and **Functional Knee.c3d** files.\\ | ||
| - | 2) The Functional Hip.c3d file is used for the [[Visual3D: | + | ===== Load Static Trial ===== |
| - | 3) FunctionalJoints_Hip_Knee.cmo contains a static trial with both the functional hip and knee defined.\\ | + | |1. From the **Model** menu, select **Create -> Hybrid Model from C3D file.** \\ 2. A dialog titled **Select the calibration file for the new model** will appear; \\ Select // |
| - | \\ | + | ===== Create Functional Joint ===== |
| - | **The calculation of functional joints is described [[Visual3D: | + | |
| + | |1. On the **Landmarks** tab: \\ 1. Select the **Functional** tab | {{: | ||
| - | ====== Load Static Trial ====== | + | ==== Create Right Functional Joint ==== |
| - | |1. From the **Model** menu, select | + | |1. On the **Landmarks** tab: \\ 1. Select the **Functional** tab \\ 2. From the **Functional Joint Name** box, select |
| - | ====== Create Functional Joint ====== | + | |2. **Select tracking targets for the F_RKNEE:** \\ **Tracking Segment/ |
| - | |1. On the **Landmarks** tab:\\ \\ 1. Select the **Functional** tab | [[File: | + | ==== Create Left Functional |
| - | ===== Create Right Functional Joint ===== | + | |1. On the **Landmarks** tab: \\ 1. Select the **Functional** tab \\ 2. From the **Functional Joint Name** box, select // |
| - | |1. On the **Landmarks** tab:\\ \\ 1. Select | + | |2. **Select tracking targets for the F_LKNEE:** \\ **Tracking Segment/ |
| - | |2. **Select tracking targets for the F_RKNEE: | + | ===== Model Builder Advanced Post Processing ===== |
| - | ===== Create Left Functional | + | |1. Select the **Post Processing** button from the menu (image below) \\ {{: |
| - | |1. On the **Landmarks** tab: | + | |3. **Open functional movement file:** \\ 1. Select the **Add Motion File From Disk** \\ 2. **Browse** to functional movement file, select //Functional Knee.c3d// \\ 3. Click **Open** \\ 4. **Select** the motion file by clicking on the trial, this will highlight the trial in **blue**. \\ | {{: |
| - | |2. **Select tracking targets for the F_LKNEE:**\\ \\ | **Tracking Segment/ | + | **NOTE:** Once the trial has been selected, the name of the trial will be highlighted and the movement file will appear in 3D viewer. |
| - | ====== Model Builder Advanced Post Processing ====== | + | ==== Define F_RKNEE Start and End of motion |
| - | |1. Select the **Post Processing** button from the menu (image below)\\ \\ [[File: | + | |1. Select the **START** frame of the right functional movement |
| - | |3. **Open functional movement | + | |2. Select the **END** frame of the right functional movement \\ 1. **Select |
| - | \\ | + | ==== Define F_LKNEE Start and End of motion ==== |
| - | **NOTE:** Once the trial has been selected, the name of the trial will be highlighted | + | |
| - | \\ | + | |
| + | |1. Select the **START** frame of the left functional movement \\ 1. **Select F_LKNEE**, this will highlight the joint in **blue** \\ 2. Using the **slider**, select the START frame of the left functional movement. //Set the Start Frame to 733// \\ 3. Click **Set START Event to Current Frame** \\ | {{: | ||
| - | ===== Define F_RKNEE Start and End of motion ===== | + | |2. Select the **END** frame of the left functional movement \\ 1. **Select F_LKNEE**, this will highlight the joint in **blue** \\ 2. Using the **slider**, select the END frame of the left functional movement. //Set the End Frame to 1149// \\ 3. Click **Set END Event to Current Frame** \\ | {{: |
| - | |1. Select the **START** frame of the right functional movement\\ \\ 1. **Select F_RKNEE**, this will highlight the joint in **blue**\\ \\ 2. Using the **slider** (seen below), select the START frame of the right functional movement. //Set the Start Frame to 241//\\ \\ [[File: | + | ===== Compute Landmarks ===== |
| - | \\ | + | |1. Select **Compute ALL Landmarks** |
| - | + | ===== Compute Right Mediolateral Borders of the Knee Joint Center ===== | |
| - | |2. Select the **END** frame of the right functional movement\\ \\ 1. **Select F_RKNEE**, this will highlight the joint in **blue**\\ \\ 2. Using the **slider** (seen below), select the END frame of the right functional movement. //Set the End Frame to 631//\\ \\ [[File: | + | |
| - | + | ||
| - | ===== Define F_LKNEE Start and End of motion ===== | + | |
| - | + | ||
| - | |1. Select the **START** frame of the left functional movement\\ \\ 1. **Select F_LKNEE**, this will highlight the joint in **blue**\\ \\ 2. Using the **slider**, select the START frame of the left functional movement. //Set the Start Frame to 733//\\ \\ 3. Click **Set START Event to Current Frame**\\ \\ \\ | + | |
| - | + | ||
| - | |2. Select the **END** frame of the left functional movement\\ \\ 1. **Select F_LKNEE**, this will highlight the joint in **blue**\\ \\ 2. Using the **slider**, select the END frame of the left functional movement. //Set the End Frame to 1149//\\ \\ 3. Click **Set END Event to Current Frame**\\ \\ \\ | + | |
| - | + | ||
| - | ====== Compute Landmarks ====== | + | |
| - | + | ||
| - | |1. Select **Compute ALL Landmarks**\\ 2. **Close** the Model Builder Advanced Post Processing dialog box\\ 3. Four landmarks (**F_RKNEE, F_RKNEE_X, F_LKNEE and F_LKNEE_X**) should appear in purple in the 3D viewer\\ \\ \\ **If the landmarks do NOT appear in the 3D viewer, check:**\\ - That the landmarks are turned on (3D View Options)\\ - Check that all steps in this tutorial were completed\\ | + | |
| - | + | ||
| - | ====== Compute Right Mediolateral Borders of the Knee Joint Center | + | |
| The RKneLat and RKneMed landmarks created below will be used to define the mediolateral borders of the knee joint. | The RKneLat and RKneMed landmarks created below will be used to define the mediolateral borders of the knee joint. | ||
| Line 77: | Line 62: | ||
| These landmarks will project the mediolateral targets (RLATKNE, | These landmarks will project the mediolateral targets (RLATKNE, | ||
| - | \\ | ||
| + | |**1. Create Lateral Border of the Right Knee Joint Center (RKneLat): | ||
| - | |**1. Create | + | |**2. Create |
| - | \\ | + | ===== Compute Left Mediolateral Borders of the Knee Joint Center ===== |
| - | \\ | + | |
| - | + | ||
| - | + | ||
| - | |**2. Create Medial Border of the Right Knee Joint Center (RKneMed): | + | |
| - | + | ||
| - | ====== Compute Left Mediolateral Borders of the Knee Joint Center | + | |
| The LKneLat and LKneMed landmarks created below will be used to define the mediolateral borders of the knee joint. | The LKneLat and LKneMed landmarks created below will be used to define the mediolateral borders of the knee joint. | ||
| Line 94: | Line 73: | ||
| These landmarks will project the mediolateral targets (LLATKNE, | These landmarks will project the mediolateral targets (LLATKNE, | ||
| - | \\ | + | |**1. Create Lateral Border of the Left Knee Joint Center (LKneLat): |
| - | + | ||
| - | + | ||
| - | |**1. Create Lateral Border of the Left Knee Joint Center (LKneLat): | + | |
| - | + | ||
| - | \\ | + | |
| - | \\ | + | |
| - | + | ||
| - | + | ||
| - | |**2. Create Medial Border of the Left Knee Joint Center (LKneMed): | + | |
| + | |**2. Create Medial Border of the Left Knee Joint Center (LKneMed): | ||
| - | Retrieved from "" | ||
visual3d/documentation/modeling/functional_joints/example_-_functional_knee.1718385836.txt.gz · Last modified: by sgranger
