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visual3d:tutorials:kinematics_and_kinetics:foot_and_ankle_angles [2025/03/04 18:21] – [Defining the Virtual Foot Segments] wikisysopvisual3d:tutorials:kinematics_and_kinetics:foot_and_ankle_angles [2025/03/04 19:06] (current) – [Create 3 projected landmarks] wikisysop
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 Note: this definition assumes that the posture in the standing trial is to be considered an ankle angle of zero degrees regardless of the actual posture. Note: this definition assumes that the posture in the standing trial is to be considered an ankle angle of zero degrees regardless of the actual posture.
  
-|**6. Create Right Virtual Foot Segment:**\\ \\ <HTML><ol></HTML>\\ <HTML><li></HTML>In the **Segments** tab, type //Right Virtual Foot// in the Segment Name box.<HTML></li></HTML>\\ <HTML><li></HTML>**Check** //Kinematic Only//<HTML></li></HTML>\\ <HTML><li></HTML>Click on the **Create Segment** button.<HTML></li></HTML>\\ <HTML><li></HTML>In the **Right Virtual Foot** tab, enter these values:\\ \\ |<HTML><p></HTML>   **Define Proximal Joint and Radius**\\    **Lateral:** //RLK//     **Joint:** //None//     **Medial:** //RMK//     \\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Define Distal Joint and Radius**\\    **Lateral:** //RLA//     **Joint:** //None//     **Medial:** //RMA//     \\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Select Tracking Targets:**\\      **RFT1, RFT2, RFT3**\\ <HTML></p></HTML>||<HTML></li></HTML>\\ <HTML><li></HTML>Click on **Build Model.** A 3D image of a foot will appear over the shank segment. **NOTE:** The image of the foot can be removed by deleting the associated .v3g file from the Segment Properties tab.<HTML></li></HTML>\\ <HTML><li></HTML>Click on **Close Tab** before proceeding.<HTML></li></HTML><HTML></ol></HTML>  |  {{:RFT_Shank.jpg}}|+|**6. Create Right Virtual Foot Segment:**\\ \\ <HTML><ol></HTML>\\ <HTML><li></HTML>In the **Segments** tab, type //Right Virtual Foot// in the Segment Name box.<HTML></li></HTML>\\ <HTML><li></HTML>**Check** //Kinematic Only//<HTML></li></HTML>\\ <HTML><li></HTML>Click on the **Create Segment** button.<HTML></li></HTML>\\ <HTML><li></HTML>In the **Right Virtual Foot** tab, enter these values:\\ \\ |<HTML><p></HTML>   **Define Proximal Joint and Radius**\\    **Lateral:** //RLK//     **Joint:** //None//     **Medial:** //RMK//     \\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Define Distal Joint and Radius**\\    **Lateral:** //RLA//     **Joint:** //None//     **Medial:** //RMA//     \\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Select Tracking Targets:**\\      **RFT1, RFT2, RFT3**\\ <HTML></p></HTML>||<HTML></li></HTML>\\ <HTML><li></HTML>Click on **Build Model.** A 3D image of a foot will appear over the shank segment. **NOTE:** The image of the foot can be removed by deleting the associated .v3g file from the Segment Properties tab.<HTML></li></HTML>\\ <HTML><li></HTML>Click on **Close Tab** before proceeding.<HTML></li></HTML><HTML></ol></HTML>  |{{:visual3d:tutorials:kinematics_and_kinetics:rft_method2.png?600|}}|
  
 **NOTE** Since the two segment coordinate systems are perfectly aligned the segments have identical orientation in the standing trial and hence have a joint angle of zero degrees.\\ **NOTE** Since the two segment coordinate systems are perfectly aligned the segments have identical orientation in the standing trial and hence have a joint angle of zero degrees.\\
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 Create 3 landmarks (RLA_Floor, RMA_Floor, RFT1_Floor) that are the projection of the 3 markers used to define the foot onto the floor. Create 3 landmarks (RLA_Floor, RMA_Floor, RFT1_Floor) that are the projection of the 3 markers used to define the foot onto the floor.
  
-|**1. Create RLA_Floor:**\\ \\ <HTML><ol></HTML>\\ <HTML><li></HTML>Click **Landmarks** button<HTML></li></HTML>\\ <HTML><li></HTML>Click **Add New Landmark** button<HTML></li></HTML>\\ <HTML><li></HTML>Create Landmark: //RLA_Floor//\\ \\ |<HTML><p></HTML>   **Landmark Name:** //RLA_Floor//\\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Define Orientation Using:**\\    **Starting Point:** //Lab_Origin//\\    **Ending Point:** //Lab_X//\\    **Lateral Object:** //Lab_Y//\\    **Project From:** //RLA//\\ <HTML></p></HTML>||<HTML></li></HTML>\\ <HTML><li></HTML>Offset Using the Following **AXIAL** Offset: //X.X//<HTML></li></HTML>\\ <HTML><li></HTML>**DO NOT Check:** //Offset by Percent (1.0 = 100%)//<HTML></li></HTML>\\ <HTML><li></HTML>**Check:** //Calibration Only Landmark//<HTML></li></HTML><HTML></ol></HTML>  |  {{:RLA_Floor.jpg}}|+|**1. Create RLA_Floor:**\\ \\ <HTML><ol></HTML>\\ <HTML><li></HTML>Click **Landmarks** button<HTML></li></HTML>\\ <HTML><li></HTML>Click **Add New Landmark** button<HTML></li></HTML>\\ <HTML><li></HTML>Create Landmark: //RLA_Floor//\\ \\ |<HTML><p></HTML>   **Landmark Name:** //RLA_Floor//\\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Define Orientation Using:**\\    **Starting Point:** //Lab_Origin//\\    **Ending Point:** //Lab_X//\\    **Lateral Object:** //Lab_Y//\\    **Project From:** //RLA//\\ <HTML></p></HTML>||<HTML></li></HTML>\\ <HTML><li></HTML>**Check** Offset Using the Following **AXIAL** Offset <HTML></li></HTML>\\ <HTML><li></HTML>**DO NOT Check:** //Offset by Percent (1.0 = 100%)//<HTML></li></HTML>\\ <HTML><li></HTML>**Check:** //Calibration Only Landmark//<HTML></li></HTML><HTML></ol></HTML>  |  {{:RLA_Floor.jpg}}|
  
-|**2. Create RMA_Floor:**\\ \\ <HTML><ol></HTML>\\ <HTML><li></HTML>Click **Landmarks** button<HTML></li></HTML>\\ <HTML><li></HTML>Click **Add New Landmark** button<HTML></li></HTML>\\ <HTML><li></HTML>Create Landmark: //RMA_Floor//\\ \\ |<HTML><p></HTML>   **Landmark Name:** //RMA_Floor//\\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Define Orientation Using:**\\    **Starting Point:** //Lab_Origin//\\    **Ending Point:** //Lab_X//\\    **Lateral Object:** //Lab_Y//\\    **Project From:** //RMA//\\ <HTML></p></HTML>||<HTML></li></HTML>\\ <HTML><li></HTML>Offset Using the Following **AXIAL** Offset: //X.X//<HTML></li></HTML>\\ <HTML><li></HTML>**DO NOT Check:** //Offset by Percent (1.0 = 100%)//<HTML></li></HTML>\\ <HTML><li></HTML>**Check:** //Calibration Only Landmark//<HTML></li></HTML><HTML></ol></HTML>  |  {{:RMA_Floor.jpg}}|+|**2. Create RMA_Floor:**\\ \\ <HTML><ol></HTML>\\ <HTML><li></HTML>Click **Landmarks** button<HTML></li></HTML>\\ <HTML><li></HTML>Click **Add New Landmark** button<HTML></li></HTML>\\ <HTML><li></HTML>Create Landmark: //RMA_Floor//\\ \\ |<HTML><p></HTML>   **Landmark Name:** //RMA_Floor//\\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Define Orientation Using:**\\    **Starting Point:** //Lab_Origin//\\    **Ending Point:** //Lab_X//\\    **Lateral Object:** //Lab_Y//\\    **Project From:** //RMA//\\ <HTML></p></HTML>||<HTML></li></HTML>\\ <HTML><li></HTML>**Check:** Offset Using the Following **AXIAL** Offset <HTML></li></HTML>\\ <HTML><li></HTML>**DO NOT Check:** //Offset by Percent (1.0 = 100%)//<HTML></li></HTML>\\ <HTML><li></HTML>**Check:** //Calibration Only Landmark//<HTML></li></HTML><HTML></ol></HTML>  |  {{:RMA_Floor.jpg}}|
  
-|**3. Create RFT1_Floor:**\\ \\ <HTML><ol></HTML>\\ <HTML><li></HTML>Click **Landmarks** button<HTML></li></HTML>\\ <HTML><li></HTML>Click **Add New Landmark** button<HTML></li></HTML>\\ <HTML><li></HTML>Create Landmark: //RFT1_Floor//\\ \\ |<HTML><p></HTML>   **Landmark Name:** //RFT1_Floor//\\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Define Orientation Using:**\\    **Starting Point:** //Lab_Origin//\\    **Ending Point:** //Lab_X//\\    **Lateral Object:** //Lab_Y//\\    **Project From:** //RFT1//\\ <HTML></p></HTML>||<HTML></li></HTML>\\ <HTML><li></HTML>Offset Using the Following **AXIAL** Offset: //X.X//<HTML></li></HTML>\\ <HTML><li></HTML>**DO NOT Check:** //Offset by Percent (1.0 = 100%)//<HTML></li></HTML>\\ <HTML><li></HTML>**Check:** //Calibration Only Landmark//<HTML></li></HTML><HTML></ol></HTML>  |  {{:RFT1_Floor.jpg}}|+|**3. Create RFT1_Floor:**\\ \\ <HTML><ol></HTML>\\ <HTML><li></HTML>Click **Landmarks** button<HTML></li></HTML>\\ <HTML><li></HTML>Click **Add New Landmark** button<HTML></li></HTML>\\ <HTML><li></HTML>Create Landmark: //RFT1_Floor//\\ \\ |<HTML><p></HTML>   **Landmark Name:** //RFT1_Floor//\\ <HTML></p></HTML>\\ \\ <HTML><p></HTML>   **Define Orientation Using:**\\    **Starting Point:** //Lab_Origin//\\    **Ending Point:** //Lab_X//\\    **Lateral Object:** //Lab_Y//\\    **Project From:** //RFT1//\\ <HTML></p></HTML>||<HTML></li></HTML>\\ <HTML><li></HTML>**Check** Offset Using the Following **AXIAL** Offset: <HTML></li></HTML>\\ <HTML><li></HTML>**DO NOT Check:** //Offset by Percent (1.0 = 100%)//<HTML></li></HTML>\\ <HTML><li></HTML>**Check:** //Calibration Only Landmark//<HTML></li></HTML><HTML></ol></HTML>  |  {{:RFT1_Floor.jpg}}|
  
 ==== Create the Virtual Foot Segment ==== ==== Create the Virtual Foot Segment ====
visual3d/tutorials/kinematics_and_kinetics/foot_and_ankle_angles.1741112462.txt.gz · Last modified: 2025/03/04 18:21 by wikisysop