shape.pointType makes a vertex smooth (handles in line and equal),
straight (in line) or corner (independent), turning its segments into
curves so it has handles. shape.moveHandle drags a control handle; the
other one follows as the point's type says (given, or read from the
handles). shape.points also reports each vertex's type.
Canvas: clicking a vertex shows its handles, which drag (one undo step
per drag) and follow the type chosen for it. Right-click a vertex for
Smooth / Straight / Corner Point and Delete Point, or anywhere for Exit
Edit Points; a shape's context menu gets Edit Points. The selection box
is hidden while points are edited.
Co-authored-by: Cursor <cursoragent@cursor.com>
New cmd::points with shape.editPoints (enter/leave; a preset becomes a
freeform in shape-local points), shape.points (vertices in slide points),
shape.movePoint, shape.addPoint (splits a line, quadratic or cubic
segment) and shape.deletePoint. After each change the box is fitted
around the outline and kept in place on the slide, rotation and flips
included. Closing edges are made explicit so they take points too.
On the canvas the edited shape shows its vertices as handles: drag one
(one undo step per drag), Cmd/Ctrl-click a vertex to delete it or the
outline to add one; Escape, Enter or a click elsewhere leaves Edit
Points. Shape Format ▸ Edit Shape gets an Edit Points item.
Not yet: smooth/straight/corner point types and Bézier control handles.
Co-authored-by: Cursor <cursoragent@cursor.com>
