A Shaper Group keeps its original shapes as its first child, at no
opacity, and clicks do not pick them outside Construction mode. The
Lasso, the Add Anchor Point, Delete Anchor Point, Anchor Point and
Scissors tools still picked their anchor points and segments, also
where the group erased the face, and Smart Guides, Snap to Point and
the transform tools' reference point snapped to them. The Lasso and
the anchor tools also picked art outside the isolated group or object
in isolation mode.
The Lasso and the anchor tools now visit only the art a click can pick:
the isolated object in isolation mode, and a Shaper Group without its
original shapes unless they are isolated (Construction mode). Smart
Guides and Snap to Point leave the original shapes out of their
targets, and Spacing Guides leave out their bounds when a face moves.
The transform tools' reference point snaps to an original shape only
when that shape is selected, or under the pointer in Construction
mode. The Shaper Group test document moves into the shared test
helpers.
Docs: docs/shaper.md, docs/target-app-parity.md.
The Curvature tool built its curve as a uniform Catmull-Rom: both handles of a
smooth point a sixth of the chord between its neighbours, the ends of an open
path without handles. Uneven spacing overshot or looped, a J or U from three
points bent sharply at the middle with straight legs, and the end segments
looked flat.
- `curvature_spline` (draw2.rs) makes each stretch of three points follow the
circle through them: a smooth point's tangent is that circle's
(`smooth_handles`), each handle `chord / (3 cos²(α/2))` long, α between
handle and chord capped at 90° (`arc_handle`). The ends of an open path
mirror their neighbour's tangent in their chord (`end_handle`). A turn
tighter than 30° (`TIGHT_TURN`) shortens its handles, so a narrow V comes to
a point. Degenerate points become corners. `path.curvature` and the rubber
band use it.
- `catmull_rom` is unchanged for the Pencil and Paintbrush fitting.
- `bend_last` (from: smooth), `curvature_move` on a smooth point, the point
`curvature_insert` adds on a straight segment, and `path.convertAnchor` to
smooth without x/y (`curvature_smooth`) use the same rule.
- `curvature_extend` gives the new end its end handle unless Alt-clicked
(`corner` param on `path.curvatureEdit`).
- Neighbours of a point dragged on an existing path keep their tangents (a
Pen-drawn shape isn't reshaped); the path being drawn re-curves throughout.
Rarely set fields move into one optional boxed NodeExtras, and large NodeKind payloads (images,
live shapes, blends, envelopes) are boxed. Every object, and every undo step that copies it,
shrinks: a 50k-path move keeps ~24.5 MB per step instead of ~40 MB. Files stay byte-identical
(Node keeps its flat JSON through a borrowed Serialize and a from-wire Deserialize, no flatten),
and loading is slightly faster. Undo and redo reuse their step's size estimate instead of
walking the document again (8.3 -> 5.6 ms for a 50k-path move).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VmMmc1J8XeNLxhRihWv9cc
# Conflicts:
# crates/engine/src/cmd/graph.rs
# crates/svg/src/export.rs
Fixes#1273. A selected group or compound path shows its paths' anchors
with the Pen, but Pen + Alt only looked at paths selected directly, so an
Alt-click there started a new path instead of converting the anchor.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Curvature tool only edited the path it was drawing. It now edits any
selected path, whatever drew it, keeping its shape except where edited:
a click on a point makes it the current (direct-selected) point and a
drag moves it, re-curving only its two segments (the neighbours keep
their handle directions); Alt-click or double-click toggles it smooth or
corner and Delete removes it; a click on a segment adds a smooth point
without changing the shape, and a drag moves it in the same undo step.
With an end of an open path current, clicks go on from it (the old
segments keep their shape) and a click on the other end closes it.
The edits go through a new path.curvatureEdit command (move, insert,
extend, close), path.convertAnchor and path.removeAnchor, one undo step
each. The tool now claims Delete/Backspace while it has a point to
remove, so the key no longer deletes the whole path.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Reported: with the Pen there was no way to edit curves in place as Ctrl does in Illustrator on
Windows (Cmd on the Mac), segments couldn't be grabbed, and the curve-editing tools felt slow and
sometimes didn't take a handle.
- Cmd/Ctrl held at a press with any tool but a selection tool now borrows the selection tool in the
engine (Session::pointer), not in the canvas: the selection tool chosen last, or Direct Selection
for the Pen, Curvature and anchor tools until one is chosen. The tool lent to isn't deactivated,
so the Pen goes on drawing its path after the release while that path stays selected; it no
longer draws on another open path selected meanwhile. Agents reach it with pointer_gesture
mods.cmd. With Cmd held the pointer is the borrowed tool's. Choosing a tool or switching
documents mid-gesture gives the tool back first.
- Pen + Alt over a segment of a selected path reshapes it, as the Anchor Point tool does.
- The handles shown are the handles that drag (one helper for Direct Selection, the Anchor Point
tool and Pen + Alt): Direct Selection now drags the handles of a path selected as a whole (as
the Pen leaves it, so Cmd + drag of a handle while drawing works), the Anchor Point tool no
longer grabs handles that Show handles when multiple anchors are selected hides, the nearest
handle wins, and a handle shorter than the tolerance leaves its anchor to be picked. The anchor
tools pick within Selection & Anchor Display > Tolerance instead of a fixed 4 px.
- path.reshapeSegment keeps a smooth anchor at either end smooth (its other handle turns with the
moved one) instead of kinking it.
- A dragged handle gathered its smart guide targets from the whole document on every pointer move
(21 ms per move on 20,000 paths): HandleSnap now gathers them once per drag (1 ms).
vectorcraft-cli perf measures handle and segment drags on a 5,000-anchor path.
- catalog::is_selection_tool and catalog::edits_anchors replace the UI's own lists.
- Tests in tools, engine and MCP (headless pointer_gesture); docs/mcp.md, control-protocol.md,
ROADMAP.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Discord feedback: Alt with the Pen didn't move a direction handle on its own, and there was no
way to break a path at an anchor and pull the ends apart.
- Pen: Alt held over a handle end or an anchor of a selected path (the one being drawn too) hands
the gesture to the Anchor Point tool, with the convert cursor: dragging a handle moves it alone,
clicking a smooth anchor makes it a corner, dragging an anchor pulls out symmetric handles.
Drawing goes on afterwards. Handles hidden by a partial anchor selection aren't grabbed.
- path.cutAtAnchors cuts at the direct-selected anchors in one undo step: a closed path opens
there, an open one becomes one path per piece, and one anchor of each cut stays selected so a
drag pulls the path apart. It answers {ids} and refuses (no undo step) when only open ends are
selected. path.convertAnchors checks `to`, skips stale anchor refs instead of indexing past
them, and keeps a smooth anchor's handles when converting to smooth.
- SubPath::cut_at and SubPath::smooth_anchor (geom) now back path.split, path.cutAtAnchors,
path.convertAnchor and path.convertAnchors, replacing three copies of that logic.
- Control bar and Properties panel: "Convert:" corner/smooth and "Anchors:" remove, connect
(Join), cut buttons when anchors are selected; Cut Path on the task bar and the context menu.
New original icon dc-anchor-smooth.svg (ASSETS.md row).
- ja, zh-hans, zh-hant and es strings (cs for the context menu item), es @msg rows; docs/mcp.md
section; ROADMAP.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Pen's Auto Add/Delete had its own copy of the anchor and segment hit
tests and of the path.insertAnchor / path.removeAnchor actions the Add
and Delete Anchor Point tools build. draw2 now exposes anchor_in /
segment_in (the hit tests over a given set of paths) and insert_anchor /
remove_anchor, which both tools use. Adds the ROADMAP entry.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
bflatastic