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minsungandClaude Opus 5.5 bc8875770b feat(engine): port the viewer engine and panel logic unchanged

Copy the vanilla engine from dwg-dxf-viewer-sample verbatim (#1):

- src/engine/viewer2d/* (Viewer2D.js incl. the 2.5D view, parsers,
  acadrust-dwg WASM, cadSpaces, slugText, linParser/linData,
  fixDwgKoreanText, ...)
- src/engine/{layerPanel,panelUtils,propertyInspector,optionsStore}.ts

The relative layout is kept (engine/viewer2d next to the panel files),
so not even import paths changed; `diff -r --strip-trailing-cr` against
the sample is empty. public/ (NanumGothic, samples, licenses, module
map) is copied as is.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-12 18:48:56 +09:00

2.5 KiB

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Third-party notices

This viewer bundles third-party code. The notices below apply to the source tree and to the built site (dist2/, deployed at https://dwg-dxf-viewer-sample.pages.dev/), because the build embeds the components listed here.

Served copies of the license texts live under public/licenses/ → /licenses/… on the deployed site.

acadrust 0.4.1 — Mozilla Public License 2.0 — MODIFIED


Component	`acadrust` (DWG/DXF parser, Rust)
Version	0.4.1
License	MPL-2.0 — full text: `public/licenses/acadrust-MPL-2.0.txt` (`/licenses/acadrust-MPL-2.0.txt`)
Upstream	https://github.com/hakanaktt/acadrust · https://crates.io/crates/acadrust/0.4.1
Upstream commit	`f249c2f816acf36ee51cd5533716bdd443c2517e` (from the crate's `.cargo_vcs_info.json`)
Author	Hakan AK
Shipped as	compiled into `assets/acadrust_dwg_bg-*.wasm` (Executable Form)

This copy is modified. One file differs from the published crate:

src/io/dwg/dwg_stream_readers/object_reader/entities.rs   (read_mesh array-count bounds)

The modification bounds read_mesh's array counts by the bits remaining in the object stream instead of the blanket 100 000-item guard, which truncated and thereby corrupted large SubD meshes.

How to obtain the Source Code Form (MPL-2.0 §3.2)

Get the unmodified crate source — cargo vendor, or https://crates.io/api/v1/crates/acadrust/0.4.1/download, or the upstream commit above.
Apply public/licenses/acadrust-0.4.1-read_mesh.patch (/licenses/acadrust-0.4.1-read_mesh.patch on the deployed site):
```
tar xf acadrust-0.4.1.crate && cd acadrust-0.4.1
patch -p1 < acadrust-0.4.1-read_mesh.patch
```

The result is the exact Source Code Form of the acadrust code compiled into the shipped .wasm. Both the original and the modified file remain under MPL-2.0.

dwg-wasm — MIT

The wasm-bindgen wrapper that turns acadrust output into this viewer's parseResult (hmwebviewer/rust/dwg-wasm/). Our own code, MIT. MPL-2.0 §3.3 permits distributing this Larger Work under different terms as long as the MPL-covered files above keep their license — which they do.

Other components

Component	License
three.js	MIT
dxf-parser	MIT
opentype.js	MIT
NanumGothic (`public/fonts/`)	SIL Open Font License 1.1
Viewer2D / sample glue	MIT

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