TYPE: SOP
TITLE: Transform Axis SOP

Transform Axis transforms the input geometry with respect to a specified
axis.  This is useful to derive an animatable channel to transform an object
about a single axis.

Parameters:

    Group           - Subset of geometry to transform.
    Group Type      - The type of elements referenced in the Group field.
    Origin          - The pivot to do the transform with.                 /orig
    Direction       - The orientation of the axis to transform with.       /dir
    Translate       - Amount of translation along the axis.              /trans
    Rotate          - Amount of rotation about the axis.                   /rot
    Scale           - Non-uniform scaling along the axis.                /scale
    Recompute Point Normals - Recomputes point normals if they exist.
    Preserve Normal Length  - Normal lengths remain unaffected.

Local Variables:

    CEX, CEY, CEZ   - The centroid of the input
    GCX, GCY, GCZ   - The centroid of the input group
    XMIN, XMAX      - The X extents of the bounding box of the input
    YMIN, YMAX      - The Y extents of the bounding box of the input
    ZMIN, ZMAX      - The Z extents of the bounding box of the input
    SIZEX, SIZEY, SIZEZ - The size of the bounding box of the input

See also: Primitive, Point, Transform(xform)
