visual3d:documentation:modeling:landmarks:landmark_types
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visual3d:documentation:modeling:landmarks:landmark_types [2024/06/26 20:23] – created sgranger | visual3d:documentation:modeling:landmarks:landmark_types [2024/07/17 15:45] (current) – created sgranger | ||
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Landmarks provide a powerful method of representing significant locations within space or locations defined by the model. Landmarks are created by either specifying a location in a segment coordinate system or by transforming markers or other landmarks into a significant location. | Landmarks provide a powerful method of representing significant locations within space or locations defined by the model. Landmarks are created by either specifying a location in a segment coordinate system or by transforming markers or other landmarks into a significant location. | ||
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In the image below, the **RAnkleCenter** is the point that is created by projecting the **RHL** heel marker onto the line created from the lateral and medial ankle markers **RLA** and **RMA**. | In the image below, the **RAnkleCenter** is the point that is created by projecting the **RHL** heel marker onto the line created from the lateral and medial ankle markers **RLA** and **RMA**. | ||
- | {{landmark_point_projected_onto_a_line.jpg}} | + | {{:landmark_point_projected_onto_a_line.jpg}} |
Another example can be found on this page, [[Visual3D: | Another example can be found on this page, [[Visual3D: | ||
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In the image below, the **RPPinPlane** is the point that is created by projecting the **RPP** marker on the illiac crest onto the plane created from the right and left ASIS's (**RASI**, | In the image below, the **RPPinPlane** is the point that is created by projecting the **RPP** marker on the illiac crest onto the plane created from the right and left ASIS's (**RASI**, | ||
- | {{landmark_point_projected_onto_a_plane.jpg}} | + | {{:landmark_point_projected_onto_a_plane.jpg}} |
== Example 1: Project the hip joint onto a plane passing through the GT's == | == Example 1: Project the hip joint onto a plane passing through the GT's == | ||
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Landmarks can be created relative to 3 locations. This can be handy when removing markers in the motion trials. | Landmarks can be created relative to 3 locations. This can be handy when removing markers in the motion trials. | ||
- | {{landmark3a.jpg}} | + | {{:landmark3a.jpg}} |
- | {{landmark3b.jpg}} | + | {{:landmark3b.jpg}} |
A right handed orthogonal coordinate system is defined by the three points (P1, P2, P3). | A right handed orthogonal coordinate system is defined by the three points (P1, P2, P3). |
visual3d/documentation/modeling/landmarks/landmark_types.1719433399.txt.gz · Last modified: 2024/06/26 20:23 by sgranger