Command: cofr

Usage:
cofr [ frontCenter | centerOfView | fixed ] [ showPivot  true | false | length,radius ]

Usage:
~cofr

Usage:
cofr [ spec | x,y,z ] [ coordinateSystem  model-spec ] [ showPivot  true | false | length,radius ]

The cofr command sets the center of rotation and/or changes how it is calculated. If no arguments are supplied, cofr reports the current center of rotation and calculation method in the Log. See also: view, mousemode , measure center, move cofr

The first set of options specify the center of rotation method:

• frontCenter – use the front center method (also specified with ~cofr): when the view is zoomed out, use the center of the bounding box of all displayed items; when the view is zoomed in, keep updating the center of rotation to the middle of the graphics window in X and Y (screen coordinates) and the depth of the frontmost displayed item at that point, or if the middle is empty, keeping the depth the same until another item passes through that point. The center of rotation is only updated for translations, not rotations alone.
  
  
• centerOfView – keep updating the center of rotation to the middle of the graphics window in X and Y (screen coordinates), with Z (depth) halfway between the near and far clipping planes. If only one of the near/far planes is active, the center of rotation depth tracks that of the active plane. If neither clipping plane is active, the center of rotation depth remains constant starting from the center of the bounding box of the first model opened, or if the method was switched, from the previous center of rotation.
  
  
• fixed – use a fixed point relative to the scene; giving this option changes only the method, retaining the current center

The remaining options specify a particular fixed center of rotation. If a spec is given, the center of rotation will be set to the center of the bounding box of the specified items (displayed parts only). Alternatively, the center can be entered as coordinates x,y,z. The coordinateSystem can be specified by reference model number. Otherwise, the scene coordinate system will be used.

The showPivot option toggles showing a crosshair representation of the center of rotation, or adjusts the length and radius of the crosshair axis cylinders. The initial default cylinder length and radius are 2 and 0.05 in data coordinate units, typically Å. The red, green, and blue axes are aligned with X, Y, and Z in the scene coordinate system.