OneCAD-Draft/docs/ucs-follow.md

UCS input and UCSFOLLOW

Direct point input

After running UCS, a click or typed coordinate can immediately supply the new origin, followed by a point on the positive X axis and a point in the positive XY plane. Explicit 3P input continues to work. Origin / O still changes only the origin with one point.

The interactive option prompt also accepts Spanish keywords, including Universal, Vista, Cara, Objeto, Origen, Guardar, Eliminar, and 3p / 3 puntos, as well as international English option keywords.

UCSFOLLOW

• UCSFOLLOW 0: keep the camera orientation when the UCS changes.
• UCSFOLLOW 1: align the view immediately with the current UCS XY plane and follow later UCS changes. Re-entering 1 realigns after a manual orbit.
• Bare UCSFOLLOW prompts for the value; Enter keeps the current setting.
• SETVAR UCSFOLLOW 0 and SETVAR UCSFOLLOW 1 work too.

The value belongs to the model pane / floating viewport and uses the drawing's existing VPORT/VIEWPORT fields, not a global application preference. Paper space itself does not follow the UCS: enter a model viewport first. BEDIT's special block-reframing path is intentionally left unchanged.

The immediate alignment on entering 1 is deliberate: users can define their UCS first, then enable following without another UCS change.

A user-defined alias such as UF,*UCSFOLLOW can invoke this command. It is not installed automatically. A PGP imported before this command was implemented must be imported again (or edited manually) to add its previously skipped alias; activating it still requires Apply.