def test_scaled_height_and_length_for_aligned_text(self, size, ff):
length = 3
paths = text2path.make_paths_from_str("XXX", font=ff, size=size,
align="LEFT")
default = path.bbox(paths)
paths = text2path.make_paths_from_str(
"XXX", font=ff, size=size, align="ALIGNED", length=length)
bbox = path.bbox(paths)
scale = bbox.size.x / default.size.x
assert bbox.size.x == pytest.approx(length), "expect exact length"
assert bbox.size.y == pytest.approx(size * scale), \
"text height should be scaled"
def test_length_for_fit_alignment(self, size, ff):
length = 3
paths = text2path.make_paths_from_str(
"XXX", font=ff, size=size, align="FIT", length=length)
bbox = path.bbox(paths)
assert bbox.size.x == pytest.approx(length), "expect exact length"
assert bbox.size.y == pytest.approx(size), \
"text height should be unscaled"
doc = ezdxf.new()
doc.layers.new('OUTLINE')
doc.layers.new('FILLING')
msp = doc.modelspace()
attr = {'color': 2}
ff = fonts.FontFace(family="Arial")
sx, sy = 4, 2
# create the target box:
msp.add_lwpolyline([(0, 0), (sx, 0), (sx, sy), (0, sy)],
close=True,
dxfattribs={'color': 1})
# convert text string into path objects:
text_as_paths = text2path.make_paths_from_str("Squeeze Me", ff)
# fit text paths into a given box size by scaling, does not move the path objects:
# uniform=True, keeps the text aspect ratio
# uniform=False, scales the text to touch all 4 sides of the box
final_paths = path.fit_paths_into_box(text_as_paths,
size=(sx, sy, 0),
uniform=False)
# mirror text along x-axis
final_paths = path.transform_paths(final_paths, Matrix44.scale(-1, 1, 1))
# move bottom/left corner to (0, 0) if required:
bbox = path.bbox(final_paths)
dx, dy, dz = -bbox.extmin
final_paths = path.transform_paths(final_paths, Matrix44.translate(dx, dy, dz))
def _to_paths(s, f='Arial'):
return text2path.make_paths_from_str(s, font=FontFace(family=f))
def test_paths_from_empty_string(self, ff):
paths = text2path.make_paths_from_str("", font=ff)
assert len(paths) == 0
def test_path_coordinates_for_negative_size(self, size, ff):
# Negative text height mirrors text about the x-axis!
paths = text2path.make_paths_from_str("X", font=ff, size=size)
bbox = path.bbox(paths)
assert bbox.extmax.y == pytest.approx(0)
assert bbox.extmin.y == pytest.approx(size)
def test_path_coordinates_for_positive_size(self, size, ff):
paths = text2path.make_paths_from_str("X", font=ff, size=size)
bbox = path.bbox(paths)
assert bbox.extmax.y == pytest.approx(size)
assert bbox.extmin.y == pytest.approx(0)
def test_text_path_height_for_exact_drawing_units(self, size, ff):
paths = text2path.make_paths_from_str("X", font=ff, size=size)
bbox = path.bbox(paths)
assert bbox.size.y == pytest.approx(abs(size))
# Requires: matplotlib
from pathlib import Path
import ezdxf
from ezdxf import path, zoom
from ezdxf.tools import fonts
from ezdxf.addons import text2path
DIR = Path('~/Desktop/Outbox').expanduser()
fonts.load()
doc = ezdxf.new()
doc.layers.new('OUTLINE')
doc.layers.new('FILLING')
msp = doc.modelspace()
attr = {'layer': 'OUTLINE', 'color': 1}
ff = fonts.FontFace(family="Noto Sans SC")
s = "Noto Sans SC 0123456789 %@ 中国文字"
align = "LEFT"
path.render_splines_and_polylines(
msp, text2path.make_paths_from_str(s, ff, align=align), dxfattribs=attr)
attr['layer'] = 'FILLING'
attr['color'] = 2
for hatch in text2path.make_hatches_from_str(s, ff, align=align, dxfattribs=attr):
msp.add_entity(hatch)
zoom.extents(msp)
doc.saveas(DIR / 'text2path.dxf')
from ezdxf.enums import TextEntityAlignment
DIR = Path("~/Desktop/Outbox").expanduser()
fonts.load()
doc = ezdxf.new()
doc.layers.new("OUTLINE")
doc.layers.new("FILLING")
msp = doc.modelspace()
attr = {"layer": "OUTLINE", "color": 1}
ff = fonts.FontFace(family="Noto Sans SC")
s = "Noto Sans SC 0123456789 %@ 中国文字"
align = TextEntityAlignment.LEFT
path.render_splines_and_polylines(msp,
text2path.make_paths_from_str(s,
ff,
align=align),
dxfattribs=attr)
attr["layer"] = "FILLING"
attr["color"] = 2
for hatch in text2path.make_hatches_from_str(s,
ff,
align=align,
dxfattribs=attr):
msp.add_entity(hatch)
zoom.extents(msp)
doc.saveas(DIR / "text2path.dxf")
