39978e59b3
Collapse the two parallel selection systems into one. The RegionSelect tool (rect + lasso) now cuts the geometry along the region outline and selects the resulting sub-pieces into the standard `Selection` ID-sets, exactly like every other tool. The vestigial floating `RegionSelection` (drag never wired; commit/delete/copy were stubbed) and all its plumbing are removed, so Group, Convert-to-Movie-Clip, Delete, and Properties all operate uniformly from lasso, rect, marquee, and click selections. Region cutting is reworked onto a robust planar arrangement: - Replace fragile incremental "split a fill by one cut edge" logic with planar face re-tracing (`retrace_fills_after_cut` + `trace_faces`), which correctly handles arbitrary holed/concave fills. - `extract_subgraph` no longer frees vertices still referenced by kept boundary edges (fixed Group leaving freed-but-referenced vertices that a later alloc reused and corrupted). - `split_fill_by_*` direction fix (was producing disconnected boundaries rendered as stray diagonals). - `fill_interior_point` (area-centroid + inward-step fallback) for reliable inside/outside classification of non-convex pieces. - Coincident-edge dedupe + degenerate-fill removal (edge-adjacent shapes no longer make zero-area sliver fills). - Dangling-edge pruning, near-coincident endpoint welding, induced- subgraph expansion, and tracking of `split_edge` sub-edges, so self-intersecting freehand lassos cut correctly. Region-select capture is available behind LIGHTNINGBEAM_DUMP_REGION=1 for turning a misbehaving cut into a deterministic test. Extensive regression tests added in vector_graph/tests/region_cut_select.rs. |
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| .. | ||
| assets | ||
| examples | ||
| src | ||
| Cargo.toml | ||
| PLAN.md | ||
| TOOL_IMPLEMENTATION_PLAN.md | ||
| build.rs | ||