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M4.93: DXF drawings open and place with layout, scale or fit, centring and merged layers

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ASCII DXF of any version opens (document.open) and places (file.place) through
a new reader in vectorcraft-cad: lines, LW/2D/3D polylines with bulge arcs,
circles, arcs, ellipses, NURBS splines (exact Beziers up to cubic, fitted
otherwise), solids, solid and pattern hatches, TEXT/MTEXT/ATTRIB as point
type, named blocks as symbols (one per look for by-block art), anonymous
blocks and dimensions as groups, MINSERT arrays, OCS extrusion; layers keep
off/frozen/locked/plot state; ACI and true colour, lineweights, linetypes and
transparency resolve through layers and blocks. The `dxf` option object picks
the layout, ratio or fit, lineweight scaling, centring and merged layers;
document.dxfInfo lists layouts, layers and units. Binary DXF and DWG answer a
clear error. The DXF Import Options dialog (dxfImport) asks on open and place
with a layout preview. Fuzzed in import_fuzz.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
bflatastic
2026-10-05 15:24:21 +07:00
co-authored by Claude Opus 5.5
parent bf4614669e
commit 2e6585d7ea
27 changed files with 4152 additions and 97 deletions
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@@ -307,6 +307,15 @@ Export Selected Art Only with nothing selected, keeps the dialog open), remember
writes the file (asking for a path when there is none). Export As also lists DWG, greyed out: setting its `format` to
`dwg` shows, and on confirm answers, the hint to export DXF instead.
DXF Import Options: opening a DXF drawing through the app (`app.open`, `file.open`, a drop) or placing one
(`file.place` with a `.dxf` file and no `dxf` options, which answers `{"dialog": "dxfImport"}`) opens the `dxfImport`
dialog (`mode`: `open` or `place`; `layouts`, `units` and `version` describe the drawing). Its fields are the
`document.open` `dxf` options: `layout` (one of `layouts`), `fit`, `unit` (a unit name such as `Millimeters`) and
`scale` (1 unit = `scale` drawing units; ignored with `fit`), `scaleLineweights`, `center`, `mergeLayers`.
`ui.dialog.confirm` opens or places the drawing (placing keeps the other `file.place` params in `__place`) and
remembers `fit`, `scaleLineweights`, `center` and `mergeLayers` for the next drawing; an error (an unknown layout,
art too large at that scale) keeps the dialog open.
Placement Options: the Links panel's flyout (or `ui.placementOptionsDialog {ids?}` for agents) opens the
`placementOptions` dialog for the selected images (fields `ids`, `preserve`: `transforms`/`bounds`/`fileDimensions`/
`fit`/`fill`, `align`: `topLeft` … `bottomRight`, `clip`). `ui.dialog.confirm` runs `links.placementOptions` with them as