- XLINE 「점 지정 또는 [수평(H)/수직(V)/각도(A)]:」 → 「통과점을 지정:」 되풀이 · 각도 기억(XLINE.ANGLE) · 이등분 · 간격띄우기 = 없는 옵션 안내 · 빈 Enter · Esc = 끝(그은 선 남음) - RAY 통과점 되풀이(loopFrom) - TEXT 시작점 → 높이 <TEXTSIZE> → 회전 각 <TEXT.ANGLE> → 줄마다 「문자 입력:」(Enter = 아래 새 줄 · 빈 줄 = 끝) · 시작점 Enter = 마지막 글 아래 이어 씀(높이 · 각 안 물음) - MTEXT 첫 구석 → 「반대 구석 지정 또는 [높이(H)/폭(W)]:」 → 글(\P 줄바꿈) · 상자 왼쪽 위에서 · 줄 감기 없음 - HATCH 「내부 점 선택 또는 [객체 선택(S)/명령 취소(U)]:」 되풀이 · 품은 닫힌 객체 중 가장 작은 경계 · 빈 Enter = 만듦 · Esc = 안 만듦 · 손 머신(엔진은 직교가 둘째 내부 점을 끌어감) - 시험 resources/tester/cad/text-acad.test.ts 12 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XWh5wNNycMkbwMpACz1rte
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.
