Files
Aislo/B07_DesignDetail/openwebcad
eomsangdonandClaude Opus 5.5 3cebb37ed0 feat(CAD): 337-3a 나-1 그리기 8 — 오토캐드 물음 차례 · 옵션 · 기본값 · 빈 Enter · Esc · 끝난 뒤
- LINE: 「첫 번째 점 지정」 빈 Enter = 마지막 끝점에서 이음 · U = 마지막 토막(되돌림 한 칸) · 둘째 토막부터 C · Enter · Esc = 끝(토막 남음)
- PLINE(새 pline-tool): 호(A) 접선 호 · 길이(L) · 닫기(C · 호 모드 CL) · 명령 취소(U) · 선(L) · Esc · Enter = 그린 데까지 남김
- RECTANG: 치수(D) 길이 · 폭 기억(RECT.L · RECT.W) → 누른 쪽 사분면 · 없는 옵션 안내
- CIRCLE: 3P · 2P · 지름(D) <2r> · 반지름 기억(CIRCLERAD · 처음 <> 없음) · 한 번 뒤 끝
- POLYGON(새 polygon-tool): 변 수 기억 <4> · 3~1024 정수 · 모서리(E) · 내접/외접 기억 · 숫자 = 아래 변 수평
- ARC(새 arc-tool): 세 점 · 중심(C) · 각도(A) · 끝(E) · 반지름(R)
- ELLIPSE(새 ellipse-tool): 축 두 끝 · 중심(C) · 회전(R) · 다른 축 숫자 = 중심에서 반 길이(N10)
- SPLINE: 다음 점 입력 · U · 넷째 점부터 C · Esc 버림 · DONUT 중심 되풀이(loopFrom)
- 시험 draw-acad 22 · keyboard-chain 옛 선 · 폴리선 줄 두 곳 새 동작으로

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VmC34fsxxbweEG3RUjs3Mn
2026-10-16 00:16:15 +09:00
..

Aislo B08 2D Drawing

This directory is maintained as part of the Aislo project and is not connected to an upstream Git repository. It provides the independent browser-based 2D drawing workspace used only by the B08 page.

The drawing engine is based on OpenWebCAD by Bert Verhelst and retains its MIT license notice in LICENSE.md and public/THIRD_PARTY_LICENSES.txt.

Aislo integration boundary

  • Business drawings enter the iframe only as same-origin JSON messages with type aislo:b08:load-drawing.
  • Browser-side DXF/DWG parsing is intentionally excluded.
  • DXF, DWG and PDF input/output are separate future modules and require a new dependency-license review before implementation.

Original project description

This is a React-based canvas drawing application that allows users to draw various shapes, such as lines, rectangles, and circles, on a fullscreen canvas. The application also includes features for selecting and erasing shapes, as well as exporting the drawing as an SVG file.

demo.gif

DEMO: https://bertyhell.github.io/openwebcad

Features

  • Fullscreen canvas with a black background
  • Drawing tools: Line, Rectangle, Circle, measurements
  • Zoom and pan
  • Eraser tool to delete segments
  • Undo and redo
  • Choose angle guides
  • Draw with snap points for
    • endpoints
    • midpoints
    • intersections
    • circle centers
    • circle quadrants
  • Selection tool to highlight and modify shapes
    • Use CTRL to toggle selection
    • Use shift to add to the current selection
    • drag left, to select by intersecting
    • drag right, to select by containing
  • Move
  • Rotate
  • Scale
  • Align shapes to each other
  • Array copy linear
  • Array copy radial
  • Import images into the drawing
  • Import SVG files
  • Export to PDF
  • Export drawing as an SVG file
  • Export drawing as an PNG file
  • Save and load drawings from/to json files
  • Select line color and thickness
  • Eraser tool to delete segments

Possible future feature ideas (TODO) in order of likelihood

  • Eraser tool to delete segments
    • Max distance to delete
  • Layers for drawing shapes in different layers that can be toggled on or off
  • Mirror
  • Offset
  • Add text
  • Ellipses
  • Regular polygons (pentagon, hexagon, etc)
  • Combine lines into a polygon
  • Explode polygons into lines
  • Polygon circumference
  • Polygon area
  • Chamfer, Round corners
  • Draw with snap points for
    • circle tangents
    • nearest point on line
    • prioritize certain snap points over others (eg: midpoint over nearest)
  • Edit existing lines and circles by dragging endpoints/middle points
  • Hatching and fill areas
  • gradient fills
  • Import DXF files
  • Import DWG files
  • Export to DWG
  • Export to DXF
  • Export drawing to ASCII code

Maintenance

  • replace react with webcomponents (Lit)

Technologies Used

  • TypeScript
  • JavaScript
  • React
  • NPM
  • HTML canvas
  • SVG
  • SCSS
  • Tailwind CSS

Demo

Visit https://bertyhell.github.io/openwebcad

Installation

  1. Clone the repository:

    git clone <repository-url>
    cd <repository-directory>
    
  2. Install dependencies:

    npm install
    

Usage

Start the development server: sh npm dev

Open your browser and navigate to http://localhost:5173

Development

Available Scripts

  • npm dev: Runs the app in development mode.
  • npm run build: Builds the app for production.
  • npm preview: Runs the production build in a local server.

Project Structure

  • src/: Contains the source code of the application.
  • docs/: Contains the github pages site.
  • public/: Contains assets that need to be accessible from the url. Like favicon.

Contributing

Contributions are welcome! Please open an issue or submit a pull request for any changes.

License

This project is licensed under the MIT License.