A tool to convert Gerber files to SVG. Uses pcb-tools.

gerber2svg.py

#! /usr/bin/env python
# -*- coding: utf-8 -*-

# Inspired by
# https://github.com/curtacircuitos/pcb-tools/blob/master/gerber/__main__.py

# Copyright 2013-2014 Paulo Henrique Silva <[email protected]>

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

def main():
    from gerber.common import read
    from gerber.render import GerberSvgContext
    import gerber.render.svgwrite_backend as svgwrite_backend
    import argparse

    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument('filenames', metavar='FILENAME', nargs='+',
            help='The Gerber files to convert')
    parser.add_argument('--dpi', type=float, default=400.,
            help='The scale to use for the SVG output')
    parser.add_argument('--alpha', type=float, default=.96,
            help='The alpha value of traces (between 0.0 - 1.0, default: 0.95).')
    parser.add_argument('--outfile', '-o', default='converted-from-gerber.svg',
            help='The output file to write')
    args = parser.parse_args()
    if args.alpha > 1.0 or args.alpha < 0.0: parser.error('alpha must be in the range [0.0; 1.0]')

    svgwrite_backend.SCALE = args.dpi
    ctx = GerberSvgContext()
    ctx.alpha = args.alpha
    for filename in args.filenames:
        print("parsing %s" % filename)
        if 'GTO' in filename or 'GBO' in filename:
            ctx.color = (1, 1, 1)
            ctx.alpha = 0.8
        elif 'GTS' in filename or 'GBS' in filename:
            ctx.color = (0.2, 0.2, 0.75)
            ctx.alpha = 0.8
        gerberfile = read(filename)
        gerberfile.render(ctx)

    print('Saving image to {}'.format(args.outfile))
    ctx.dump(args.outfile)

if __name__ == '__main__':
    main()