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M8.12: Perspective Selection tool scales, copies, moves perpendicular and nudges in perspective

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The Perspective Selection tool shows the selection's bounding box in perspective; its handles
scale in plane space (perspective.transform; Shift proportional, Alt from the centre). Alt-drag
moves copies that stay attached, pressing 5 while dragging moves along the plane's normal
(ToolKey::Digit, delivered by the canvas and MCP press_key), and the arrow keys nudge in
perspective (perspective.nudge). Transform Again repeats the last perspective move or scale in
plane space. Attachments (plane and depth) now live on the objects (Node.perspective), so copies,
duplicates and pastes keep them; grids from older files hand theirs over. Homography moves to
vectorcraft-geom. Hint-bar text for the tool.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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bflatastic
2026-10-06 11:00:15 +07:00
co-authored by Claude Opus 5.5
parent 7df7cf568a
commit a0847e8a25
18 changed files with 1250 additions and 140 deletions
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@@ -57,7 +57,7 @@ objects' fills or strokes differ (`fillMixed` / `strokeMixed`, drawn as a "?" pr
| `draw_path` | `{points \| d, closed?, fill?, stroke?, strokeWidth?}` | `points` is `[[x,y],…]` or `[{x,y,in?,out?,smooth?},…]`. `d` is SVG path data. |
| `draw_shape` | `{shape, …geometry, fill?, stroke?, strokeWidth?}` | `rectangle`/`ellipse`: `x,y,width,height` (plus `radius` for corners). `polygon`: `cx,cy,radius,sides`. `star`: `cx,cy,radius1,radius2,points`. `line`: `x1,y1,x2,y2`. |
| `set_paint` | `{fill?, stroke?, strokeWidth?, ids?}` | Applies to the selection (or `ids`) and becomes the default for new art. |
| `press_key` | `{key, mods?}` | Remote: a real key event. Headless: runs the command or tool bound to that shortcut, or sends the key to the busy tool. |
| `press_key` | `{key, mods?}` | Remote: a real key event. Headless: runs the command or tool bound to that shortcut, or sends the key to the busy tool (digits too: `5` while dragging with the Perspective Selection tool). |
| `type_text` | `{text}` | Remote only. |
| `invoke_menu` | `{command, params?}` | Invokes a menu item by command id. Includes UI commands such as `view.*` and `window.*` in remote mode. |
| `open_panel` | `{panel}` | Remote only. |
@@ -1832,3 +1832,21 @@ preferences, and a grid whose fields are a preset's is named after it (`name`).
{"name":"run_command","arguments":{"command":"perspective.grid.preset","params":{"name":"[2P-Low View]"}}}
{"name":"run_command","arguments":{"command":"perspective.presets.save","params":{"name":"Street","units":"feet","scale":[1,48],"gridline":1}}}
```
## Perspective Selection
Objects in perspective keep their attachment themselves (`perspective` on the object: `plane` and `depth`, the
distance along the plane's normal), so copies, duplicates and pastes stay attached. With the
`perspectiveSelection` tool, a drag moves the selection within its plane (`perspective.move`; Alt copies), the
bounding-box handles scale it in plane space (`perspective.transform`; Shift keeps proportions, Alt scales about the
centre), and `press_key` `5` during a drag switches the move to perpendicular to the plane (press again to switch
back). The arrow keys nudge a selection in perspective by the keyboard increment (`perspective.nudge`; Shift ×10, Alt
copies). Object › Transform › Transform Again repeats the last perspective move or scale in plane space.
```json
{"name":"pointer_gesture","arguments":{"tool":"perspectiveSelection","events":[{"kind":"down","x":480,"y":410},{"kind":"drag","x":470,"y":405}]}}
{"name":"press_key","arguments":{"key":"5"}}
{"name":"pointer_gesture","arguments":{"events":[{"kind":"up","x":470,"y":405}]}}
{"name":"run_command","arguments":{"command":"perspective.transform","params":{"matrix":[1.5,0,0,1.5,0,0],"copy":true}}}
{"name":"run_command","arguments":{"command":"object.transformAgain","params":{}}}
```