A built-in add-on under Object › Plug-ins › Path Precision Tools:
- Anchor Eraser Brush: painting over selected paths removes the anchors
under the brush that the outline can do without within a tolerance,
refitting the handles beside them (Alt ignores the tolerance, Cmd/Ctrl
deletes without refitting, pen pressure can scale the brush); one undo
step per stroke.
- Extend Path tool: dragging an end of an open path carries it on
straight, by stretching its last curve or along the circle it curves
on, or shortens it back along itself.
- Measure & Inspect tool: drag to measure distance and angle; hover a
path to read segment and path length, area, curvature, tangent and
anchor angles and handles, in the document's units.
- Anchor Inspector panel: the selected anchor's position and handles as
numbers, with Make Smooth (auto-smooth rule), Make Corner, Equalize
Handles, Remove Points Keep Shape, Add Points and three ways to close.
- Add Points at Crossings and Split at Crossings.
The tools stay out of both toolbars as shipped; the All Tools drawer
lists them under the add-on's heading. Commands are addon.pathtools.*;
the existing commands, tools and menus are unchanged.
