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visual3d:documentation:modeling:segments:create_coda_pelvis_relative_to_anatomical_landmarks

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visual3d:documentation:modeling:segments:create_coda_pelvis_relative_to_anatomical_landmarks [2024/06/19 12:48] sgrangervisual3d:documentation:modeling:segments:create_coda_pelvis_relative_to_anatomical_landmarks [2024/07/17 15:45] (current) – created sgranger
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-{{{{{{{{{{{{create coda pelvis relative to anatomical landmarks.+====== Create CODA pelvis relative to anatomical landmarks ======
  
-the segment coordinate system for the coda pelvis is the mid-point between the asis markers. the anatomical landmarks are actually posterior to the asis markers because the motion capture system tracks the center of the marker.+Create CODA pelvis relative to anatomical landmarks.
  
-this is a modest error, but it can be corrected by creating landmarks that are posterior to the asis markers by the radius of the motion capture marker.+The segment coordinate system for the CODA pelvis is the mid-point between the ASIS markers. The anatomical landmarks are actually posterior to the ASIS markers because the motion capture system tracks the center of the marker.
  
-==== step 1. confirm the subject metric containing the marker radius. ====+This is a modest error, but it can be corrected by creating landmarks that are posterior to the ASIS markers by the radius of the motion capture marker.
  
-if the metric doesn't exist, create a new metric.+=== Step 1. Confirm the subject metric containing the marker radius===
  
-switch to **subject data/metrics** tab.+If the metric doesn't exist, create a new metric.
  
-segmentexample4_1.png\\+Switch to **Subject Data/Metrics** TAB.
  
 +{{:SegmentExample4_1.png}}\\
  
-select **add new item** and enter in the name **marker_radius** and the value. 
  
-segmentexample4_2.png\\+Select **Add New Item** and enter in the name **Marker_Radius** and the value.
  
 +{{:SegmentExample4_2.png}}\\
  
-in this example, the marker has a diameter of 1.2 cm. visual3d uses mks units, so the value is 0.006 meters. 
  
-**note:** if the radius is not consistent with your marker radiusmodify the value.+In this example, the marker has a diameter of 1.2 cm. Visual3D uses MKS unitsso the value is 0.006 meters.
  
-==== step 2. create landmarks for the asis markers ====+**Note:** If the radius is not consistent with your marker radius, modify the value.
  
-segmentexample4_4.png\\+=== Step 2Create landmarks for the ASIS markers ===
  
 +{{:SegmentExample4_4.png}}\\
  
-**note:** the ml edit box contains the expression **-marker_radius** 
  
-segmentexample4_5.png\\+**Note:** the ML Edit box contains the expression **-MARKER_RADIUS**
  
 +{{:SegmentExample4_5.png}}\\
  
-**note:** the ml edit box contains the expression **-marker_radius** 
  
-==== step 3. create a coda pelvis ====+**Note:** the ML Edit box contains the expression **-MARKER_RADIUS**
  
-segmentexample4_6.png\\+=== Step 3Create a CODA Pelvis ===
  
 +{{:SegmentExample4_6.png}}\\
  
-in this example, the locations defining the segment coordinate system for the pelvis are the landmarks **rt_asis** and **lt_asis**, and the marker **sacr** located at the midpoint of the psis markers. 
  
-the tracking markers are **rasi**, **lasi**, and **sacr**.+In this example, the locations defining the segment coordinate system for the pelvis are the landmarks **RT_ASIS** and **LT_ASIS**, and the marker **SACR** located at the midpoint of the PSIS markers. 
 + 
 +The tracking markers are **RASI**, **LASI**, and **SACR**. 
 + 
 +{{:SegmentExample4_7.png}}\\
  
-segmentexample4_7.png\\ 
  
  
  
-}}}}}}}}}}}} 
visual3d/documentation/modeling/segments/create_coda_pelvis_relative_to_anatomical_landmarks.1718801331.txt.gz · Last modified: 2024/06/19 12:48 by sgranger