Add the native Array action (\BARRAY\, \BACTION ARRAY\, and Authoring Palettes Actions tab \Array\) supporting Linear, Polar, and XY parameters.
Prompt for column offset (and row offset for XY), constructing native \DynamicBlockData::ArrayAction(BlockArrayAction)\ with class \AcDbBlockArrayAction\ and 4 native connections (\Base\, \End\, \UpdatedBase\, \UpdatedEnd\) bound to the parameter node ID.
Evaluate step displacement along 1D rays and 2D grids, tagging clones with deterministic element IDs to reconcile representations cleanly across incremental grip adjustments without mutating baseline geometry. Validate native DWG/DXF roundtrip, reference independence, COPY isolation, rejections, and dock palette tool state.
Update evaluated references upon saving block definition edits while preserving each reference's independent parameter values, visibility states, and undo history.
Reconcile representation members by native element identity rather than positional index, preserving handles, extension dictionaries, reactors, nested attribute handles, and 3D polyline vertex handles. Prune erased targets from action dependencies, synchronize anonymous block base points, and prevent element ID collisions across undo/redo. Coalesce representation updates into editor undo deltas and composite structure snapshots for symmetric undo/redo.
Add BACTIONSET and the Block Editor Action Selection ribbon entry. Pick or preselect an action, replace/add/remove its drawing targets, or redefine a Stretch frame while preserving the native action and graph identity.
Retain existing Stretch vertex bindings during target edits and bind new targets against the stored frame. Allow removing invalid bindings or rebuilding them through a replacement frame. Rebuild evaluated references at their independent cached values so removed targets lose old action effects, with local undo, discard and one drawing save delta.
Validate synthetic native DWG/DXF roundtrips, shared COPY representations, stale-result guards, reference geometry refresh, frame/cancel/history and the real ribbon flyout. 347 block tests pass (6 existing opt-in ignored), plus 42 dock and 27 viewport tests.
Author a native Stretch action from a Linear, Polar or XY parameter, a two-corner stretch frame, an object selection and a marker. Preview and retain its frame in BEDIT, with selectable and movable action markers.
Freeze line and planar lightweight-polyline vertex bindings, preserve curved-segment height, move wholly selected objects, and evaluate independent saved INSERTs from their definition. Retain native DWG/DXF data, copied-reference isolation and undo/redo.
Validate with synthetic frame, topology, parameter, history, Test Block, drawing-reference, COPY and roundtrip regressions: 340 block tests pass (6 existing opt-in ignored), plus 41 dock and 27 viewport tests. Other entity types, Polar Stretch, custom multipliers and chaining remain unsupported.
Use the existing triangular grip marker in Test Block and saved drawing references. Point it across the reflection line, transform it with the INSERT, and reverse the arrow when the native Flip state changes.
Validate arrow shape and both directions through the existing mouse-click, undo/redo and reopen regression in both contexts.
Author Rotate actions against Rotation parameters and Flip actions against Flip
parameters through the existing palette, BACTION selection flow and native
evaluation graph. Keep markers selectable and editable in BEDIT.
Rotation grips accept a new direction at the original radius. Flip grips toggle
immediately. Evaluate both from immutable definition geometry in Test Block and
independent drawing references, preserving per-INSERT angle/state caches across
DWG/DXF saves and COPY. Undo/redo includes the native state and representation.
Accept parameter names containing spaces at the action parameter prompt.
332 block regressions pass (6 existing opt-in checks ignored), including native
binding/marker roundtrips, composed rotation/flip, repeated reversible toggles,
COPY isolation, viewport mouse interactions, history and saved-reference reopen.
Custom base modes, constrained/chained evaluation and parameter-target actions
remain unsupported; Rotate currently binds Rotation parameters.
Selected drawing references now expose action parameter grips outside Test
Block. Point input evaluates immutable definition geometry into an independent
anonymous representation and stores per-INSERT values in native AppDataCache
XRecords, preserving definition graphs and sibling references.
Reuse visibility representation isolation, including shared COPY blocks, and
retain cache metadata. Record geometry, INSERT links, new block records and
parameter values in one undo step. Support transformed uniform references and
Point, Linear, Polar and XY endpoints for the existing Move/Scale actions.
Validate synthetic DWG/DXF persistence, re-edit/resave, COPY isolation,
XY/Polar cache layouts, metadata, cancellation, transformed grips and undo/redo.
327 block regressions pass (6 existing opt-in checks ignored).
Add BACTION/BACTIONTOOL workflows for compatible parameter endpoints, selected geometry and native action markers. Persist Move/Scale records, target handles and evaluation graph bindings; reuse shared adjacency editing with Lookup and the existing palette, tooltips and selection UI.
Evaluate endpoint changes in the disposable Test Block document from immutable starting geometry, with geometry/grip undo, source isolation and transformed-reference support. Preserve visibility representations and their native Basepoint anchor. Refuse unsupported options, value constraints and shared test references.
This milestone supports default Move and uniform Scale on basic drawing entities. Other actions, custom options, live preview and ordinary drawing-reference evaluation remain pending.
Validation: self-contained synthetic DWG/DXF roundtrips, graph adjacency, command cancellation/history, Test Block isolation/undo, transformed references, visibility/Basepoint and real-view palette/viewport input checks; broader block and dock suites.
Keep action object selection active across mouse picks/removals and advance only on Enter. Cover empty selection, multiple targets, Shift removal, marker placement and Move/Scale Test Block evaluation using viewport mouse events. Verified 10 focused, 320 block and 39 dock tests (6 existing opt-in block checks ignored).
Karim Jerbi