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#s -*- coding: utf-8 -*-
#
# Copyright 2022 Jan Götte <code@jaseg.de>
#
# 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.
#
import sys
import math
import subprocess
import tempfile
from pathlib import Path
from xml.etree import ElementTree
import gerbonara
import pytest
from .test_integration import run_command
def test_template_round_trip():
r = 50 # mm
n_points = 500000
with tempfile.NamedTemporaryFile(suffix='.svg') as out_svg,\
tempfile.NamedTemporaryFile(suffix='.svg') as proc_svg,\
tempfile.TemporaryDirectory() as out_dir:
run_command('python3', 'gerbolyze', 'empty-template', '--force', '--size', f'{2*(r)}x{2*(r)}mm', out_svg.name)
ElementTree.register_namespace('', 'http://www.w3.org/2000/svg')
ElementTree.register_namespace('svg', 'http://www.w3.org/2000/svg')
et = ElementTree.parse(out_svg)
for layer in [
et.find(".//{http://www.w3.org/2000/svg}g[@id='g-top-copper']"),
et.find(".//{http://www.w3.org/2000/svg}g[@id='g-bottom-copper']")]:
poly = ElementTree.SubElement(layer, '{http://www.w3.org/2000/svg}polygon')
# Generate n_points points on a circle
poly.set('points', ' '.join([f'{r + r*math.sin(t)}, {r + r*math.cos(t)}'
for t in (i/n_points * 2*math.pi for i in range(n_points))]))
et.write(proc_svg)
proc_svg.flush()
run_command('python3', 'gerbolyze', 'convert', proc_svg.name, out_dir)
out_dir = Path(out_dir)
excellon_files = [f.stat().st_size for f in out_dir.glob('*.drl')]
print('Excellon file sizes:', excellon_files)
gerber_files = {f: f.stat().st_size for f in out_dir.glob('*.gbr')}
print('Gerber file sizes:', gerber_files)
assert len(excellon_files) == 2
assert all(20 < x < 100 for x in excellon_files)
for f, size in gerber_files.items():
_name, _, layer = f.stem.rpartition('-')
if layer in ('F.Cu', 'B.Cu'):
# These layers should contain a very large G36 polygon
assert 10e6 < size < 100e6
else:
# These layers should not contain anything
assert 20 < size < 1000
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