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######################################################################
# #
# Copyright 2009-2019 Lucas Heitzmann Gabrielli. #
# This file is part of gdspy, distributed under the terms of the #
# Boost Software License - Version 1.0. See the accompanying #
# LICENSE file or <http://www.boost.org/LICENSE_1_0.txt> #
# #
######################################################################
from matplotlib.font_manager import FontProperties
from matplotlib.textpath import TextPath
import gdspy
def render_text(text, size=None, position=(0, 0), font_prop=None, tolerance=0.1):
path = TextPath(position, text, size=size, prop=font_prop)
polys = []
xmax = position[0]
for points, code in path.iter_segments():
if code == path.MOVETO:
c = gdspy.Curve(*points, tolerance=tolerance)
elif code == path.LINETO:
c.L(*points)
elif code == path.CURVE3:
c.Q(*points)
elif code == path.CURVE4:
c.C(*points)
elif code == path.CLOSEPOLY:
poly = c.get_points()
if poly.size > 0:
if poly[:, 0].min() < xmax:
i = len(polys) - 1
while i >= 0:
if gdspy.inside(poly[:1], [polys[i]], precision=0.1 * tolerance)[0]:
p = polys.pop(i)
poly = gdspy.boolean([p], [poly], 'xor', precision=0.1 * tolerance,
max_points=0).polygons[0]
break
elif gdspy.inside(polys[i][:1], [poly], precision=0.1 * tolerance)[0]:
p = polys.pop(i)
poly = gdspy.boolean([p], [poly], 'xor', precision=0.1 * tolerance,
max_points=0).polygons[0]
i -= 1
xmax = max(xmax, poly[:, 0].max())
polys.append(poly)
return polys
if __name__ == "__main__":
fp = FontProperties(family='serif', style='italic')
text = gdspy.PolygonSet(render_text('Text rendering', 10, font_prop=fp), layer=1)
gdspy.Cell('TXT').add(text)
gdspy.write_gds('fonts.gds')
gdspy.LayoutViewer()
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