Files
Aislo/B07_DesignDetail/openwebcad
eomsangdonandClaude Opus 5 8c828992f7 fix(B07): 집기 반경을 화면 기준으로 잡고, 누른 채 끄는 선택을 살린다
- 집기 반경이 월드 거리였다. HIGHLIGHT_ENTITY_DISTANCE를 월드 거리와 그대로 비교해
  확대할수록 화면상 반경이 같이 커졌다(1369%에서 15월드 ≈ 205px). helpers/pick-radius로
  확대율을 나눠 쓰고 상수를 화면 픽셀 10으로 낮췄다. 하이라이트·선택·그립·시퀀스 도구가
  같은 반경을 본다.
- 누른 채 끄는 선택이 없었다. 왼쪽 버튼은 mouseup에서만 클릭을 보내 누르고 끌어도 점이
  하나만 찍혔고, 그래서 좌→우(창)·우→좌(교차) 구분이 먹히지 않는 것처럼 보였다.
  선택 도구일 때만 누를 때 첫 점을 보내고, 4px 넘게 끌고 놓으면 그 자리로 사각형을 닫는다.
  다른 도구는 예전처럼 놓을 때 한 점만 받는다.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 15:52:25 +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.