Files
Aislo/B07_DesignDetail/openwebcad
eomsangdonandClaude Sonnet 5.5 5638bd5101 feat(M02): 면적 값 고침이 저장 전 도면 패널 표에 바로 비침 · 이름 · 보내기 취소는 [저장] 때 서버가 기록(112-1·112-2)
- 112-1 면적 표 변환을 공용 파일(spreadsheet_area_table.ts)로 빼 서버 Node 와 브라우저가 한 벌로 씀 · 도면 패널이 칸 고침마다(값 바뀐 표만 · 펼친 동안만) CAD 연결 표 갈기를 보기 전용 갈음(preview)으로 보냄
- 112-2 보낸 범위 이름은 도면 [저장] 요청 안에서 서버가 면적 문서에 둠(놓기만 하고 저장 안 하면 안 생김) · [보내기 취소]는 화면에서만 빼고 면적 [저장] 때 서버가 연결표 줄 · 이름을 뺌 · /name · /unlink 길 삭제

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MgChuAcyBqUkhHMTXomQC7
2026-10-08 17:36:44 +09:00
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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.