cadbatch 0.1.0

Batch-draw shapes in AutoCAD from a JSON/CSV spec, via pyautocad. Includes a mock backend for testing without AutoCAD.

cadbatch

Batch-draw shapes (lines, circles, text) in AutoCAD from a simple JSON or CSV spec file, automated with pyautocad.

Built for repetitive drafting tasks — instead of manually placing dozens of shapes in AutoCAD, describe them in a spec file and let cadbatch draw them via COM automation.

Why a mock backend?

AutoCAD automation (via pyautocad/COM) only runs on Windows with a licensed copy of AutoCAD installed. So this package ships a MockBackend that records every draw call in memory — the whole pipeline (spec loading, validation, batch drawing, CLI) can be built, unit-tested, and demoed on any machine. Swap to RealBackend on a Windows box with AutoCAD to actually draw.

Install

pip install cadbatch          # core package, mock mode only
pip install cadbatch[autocad] # + pyautocad, for real AutoCAD drawing (Windows only)

Usage

Spec file (shapes.json):

[
  {"shape": "line", "x1": 0, "y1": 0, "x2": 50, "y2": 25},
  {"shape": "circle", "x1": 25, "y1": 12, "radius": 10},
  {"shape": "text", "x1": 0, "y1": 30, "text": "Hello CAD"}
]

Run in safe mock mode (no AutoCAD needed):

cadbatch shapes.json

Run against a live AutoCAD instance (Windows, AutoCAD installed and running):

cadbatch shapes.json --real

Or use it as a library:

from cadbatch import load_spec, BatchDrawer, get_backend

specs = load_spec("shapes.json")
drawer = BatchDrawer(get_backend(use_real=False))
drawer.draw_all(specs)

Spec format

field	required for	type
shape	all	line | circle | text
x1, y1	all	float
x2, y2	line	float
radius	circle	float
text	text	str

CSV files use the same column names (see examples/).

Development

pip install -e .
python -m unittest discover -s tests -v

License

MIT