pygerber 2.4.1

Description:

pygerber 2.4.1

PyGerber


















PyGerber is a Python implementation of Gerber X3/X2 format. It is based on Ucamco's
The Gerber Layer Format Specification. Revision 2023.03 (Available on
Ucamco's webpage
and in
this repository).
The goal of this project is to provide support for wide variety of Gerber-like syntaxes,
with support for most of deprecated features along with support for modern ones.
📚 See online documentation 📚
Target set of tools:

Tokenizer
Parser
Optimizer
Introspection API
Rasterized 2D rendering engine (With
Pillow)
Vector 2D rendering engine (With drawsvg)
Model 3D rendering engine (With Blender)
Formatter
Linter (eg. deprecated syntax detection)
Gerber X3/X2 Language Server (with language-server extras)

You can view progress of development in
Gerber features support section down below. All Gerber
source files which can be redistributed under MIT license and included in this
repository for testing purposes will be greatly appreciated.
Installation
PyGerber can be installed with pip from PyPI:
pip install pygerber

Alternatively, it is also possible to install it directly from repository:
pip install git+https://github.com/Argmaster/pygerber

Command line usage
After installing pygerber, depending on your environment, it should become available
in your command line:
pygerber --version

Output should be similar to one below ⇩, where x.y.z should match version of
PyGerber installed.
$ pygerber --version
pygerber, version x.y.z

Use --help to display help messages for individual commands:
pygerber render --help

To render 2D PNG image of some gerber file you can simply use:
pygerber render raster source.gbr -o output.png

Image will be saved to output.png in current working directory.

For guide on how to render SVG images and multi-layer projects with CLI please refer to
PyGerber documentation.
Programmatic usage
JPG
PyGerber can be used programmatically to render Gerber files. Below is an minimalistic
example of how to render one of the example files included with PyGerber release to JPEG
image:
from pygerber.examples import ExamplesEnum, get_example_path
from pygerber.gerberx3.api.v2 import GerberFile

GerberFile.from_file(
get_example_path(ExamplesEnum.UCAMCO_ex_2_Shapes),
).parse().render_raster("output.jpg")

Running code above will create output.jpg file in current working directory which
should look like this:



PNG
It is also possible to render Gerber files to PNG with custom resolution and different
color schemes:
from pygerber.examples import ExamplesEnum, get_example_path
from pygerber.gerberx3.api.v2 import ColorScheme, GerberFile, PixelFormatEnum

GerberFile.from_file(
get_example_path(ExamplesEnum.ShapeFlashes),
).parse().render_raster(
"output.png",
dpmm=100,
color_scheme=ColorScheme.COPPER_ALPHA,
pixel_format=PixelFormatEnum.RGBA,
)

Code above renders following image:



SVG
Finally you can also create SVG files with PyGerber:
from pygerber.examples import ExamplesEnum, load_example
from pygerber.gerberx3.api.v2 import GerberFile

source_code = load_example(ExamplesEnum.UCAMCO_ex_2_Shapes)
GerberFile.from_str(source_code).parse().render_svg("output.svg")

Multiple layers
PyGerber can also render multiple layers to single image. Below is an example of how to
render four layers to single PNG image with use of Project class:
from pygerber.examples import ExamplesEnum, load_example
from pygerber.gerberx3.api.v2 import FileTypeEnum, GerberFile, Project

Project(
[
GerberFile.from_str(
load_example(ExamplesEnum.simple_2layer_F_Cu),
FileTypeEnum.COPPER,
),
GerberFile.from_str(
load_example(ExamplesEnum.simple_2layer_F_Mask),
FileTypeEnum.MASK,
),
GerberFile.from_str(
load_example(ExamplesEnum.simple_2layer_F_Paste),
FileTypeEnum.PASTE,
),
GerberFile.from_str(
load_example(ExamplesEnum.simple_2layer_F_Silkscreen),
FileTypeEnum.SILK,
),
],
).parse().render_raster("output.png", dpmm=40)

Here is the result:



Advanced usage
Additionally to examples presented above which use high level API, PyGerber provides low
level API which allows to directly access PyGerber internals and change behavior of
parser, tokenizer and renderers. This can be used for code introspection and potentially
other purposed. Check out documentation for more information.
Language Server
Since release 2.1.0 PyGerber provides Gerber X3/X2 Language Server with
LSP support. It can be enabled
by installing PyGerber extras set language-server with following command:
pip install pygerber[language-server]

Afterwards you can use pygerber is-language-server-available to check if language
server was correctly enabled. Please report all issues in
PyGerber Issues section.
You can utilize power of this language server with use of Visual Studio Code extension
Gerber X3/X2 Format Support
(argmaster.gerber-x3-x2-format-support).
Documentation
Official documentations is hosted on Github Pages and can be found
here.
Gerber features support
For detailed list of features which are supported/not supported by each tool please
refer to documentation:

Tokenizer,
Parser2,
RasterRenderer2,
SvgRenderer2,

Development
For development guidelines please visit documentation Development section
here.
Gerber reference archive
This repository contains also archival reference files. Although new specs contain
dedicated changelog section it may still be helpful in some rare cases to look through
old Gerber specs. Archival files can be found
here.