eomsangdonandClaude Opus 5
9c1cdf8f4d
도면을 열 때마다 0.8~1.0초가 걸렸다. 서버가 요청마다 도면을 새로 조립하고(0.3~0.6초), 구조물 모듈이 공유 캐시를 건너뛰고 종횡단 상세를 매번 다시 받았기 때문이다(0.2초). 진입 후 첫 장을 띄우고 나서 목록 전체를 배경에서 받아 캐시에 담고, 구조물 모듈은 B05·B06과 같은 Section_Store를 쓴다. 클릭에서 렌더까지 55~65ms로 줄었다. CAD 알림은 react-toastify라 프로젝트 공용 토스트와 모양이 달랐다. 호출부 30여 곳을 그대로 두려고 vite alias로 라이브러리 자리에 다리를 끼워, 부모가 있으면 메시지로 넘겨 부모 토스트로 띄운다. 백업 되살리기처럼 누르는 안내를 위해 showToast에 onClick을 더했다. 커서가 미묘하게 끌리던 것은 프레임이 느려서가 아니라(16.7ms, 60fps) 합성 파이프라인 때문이다. 화면 캔버스를 desynchronized+alpha:false로 만들어 그 큐를 건너뛴다. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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: 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
-
Clone the repository:
git clone <repository-url> cd <repository-directory> -
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.