Files
Aislo/B07_DesignDetail/openwebcad
eomsangdonandClaude Opus 5 3fccf8278b feat(B07): 그린 것을 블록으로 저장해 다시 놓고, 사진 넣기를 되살린다
조사표 4·7절 검토 결과를 반영한다.

- 블록 라이브러리: 선택한 객체를 이름 붙여 저장(BLOCK)하고 팔레트에서 골라
  클릭 한 번으로 놓는다(INSERT). 정의-참조 링크 없는 클론 방식이라 새 엔티티
  타입 없이 기존 직렬화·groupId를 그대로 쓴다. 기준점은 선택 영역 중심.
  라이브러리는 도면과 분리해 브라우저에 두고, 유실 대비로 파일 내보내기·
  가져오기를 붙였다.
- 사진 넣기: IMAGEATTACH가 파일 선택창을 띄우지 않아 도구가 FILE_SELECTED를
  영원히 기다리고 있었다. 도구형 명령도 run()을 함께 부르게 하고 파일 선택을
  붙여 되살렸다.
- 조사표 4·7절의 반영 등급·반영 열을 실제 코드에 맞춰 정정하고, 반영하지
  않기로 한 항목의 사유를 절마다 남겼다. 7절은 신규 구현 없음.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 14:00:42 +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.