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eyes:coordinatesandconventions [2017/06/08 10:45]
jschlie1
eyes:coordinatesandconventions [2017/06/08 10:47] (current)
jschlie1
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 ====== The CowEyes Coordinate System====== ====== The CowEyes Coordinate System======
 +===== General definitions =====
 The cow coordinate system is a right handed coordinate system, where - while looking on the screen - the x-axis points to the right, the y-axis points downwards and the z-axis point into the screen away from the user.  The cow coordinate system is a right handed coordinate system, where - while looking on the screen - the x-axis points to the right, the y-axis points downwards and the z-axis point into the screen away from the user. 
  
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 {{:​eyes:​counterclockwise.png}} ​   {{:​eyes:​counterclockwise.png}} ​  
  
-===== Rotation Conventions and Coordinate system ===== +===== Coordinate System with Rotation ​=====
-==== Coordinate System with Rotation ====+
 {{:​eyes:​coordinatesystemrotation.png}} {{:​eyes:​coordinatesystemrotation.png}}
  
 Shown is the Coordinate system with rotation directions. Shown is the Coordinate system with rotation directions.
  
-==== Image Placement ====+===== Image Placement ​=====
 {{:​eyes:​imagecoordinatesystem.png}} {{:​eyes:​imagecoordinatesystem.png}}
  
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 The rotation center is marked in the middle of the image. The rotation center is marked in the middle of the image.
  
-==== Definition of Coordinate Axes====+===== Definition of Coordinate Axes =====
   * X-Axis (Axis of abscissas) from left to right   * X-Axis (Axis of abscissas) from left to right
   * Y-Axis (Axis of ordinates) from top to bottom   * Y-Axis (Axis of ordinates) from top to bottom
   * Z-Axis (Axis of applicants) from front to back   * Z-Axis (Axis of applicants) from front to back
  
-==== Euler Convention====+===== Euler Convention ​=====
 **ZXZs** **ZXZs**
  
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   - Gamma (γ) rotation around static global Z-Axis   - Gamma (γ) rotation around static global Z-Axis
  
-==== Rotation====+===== Rotation ​=====
   * Rotations use the right hand thumb rule.   * Rotations use the right hand thumb rule.
   * If right thumb points along an axis, then curved fingers point in the positive direction of rotation.   * If right thumb points along an axis, then curved fingers point in the positive direction of rotation.
   * The rotation center is the center of the image.   * The rotation center is the center of the image.