534 lines
18 KiB
Python
534 lines
18 KiB
Python
|
from collections import OrderedDict
|
||
|
|
import functools
|
||
|
|
import logging
|
||
|
|
import urllib.parse
|
||
|
|
|
||
|
|
import numpy as np
|
||
|
|
|
||
|
|
from matplotlib import cbook, dviread, font_manager, rcParams
|
||
|
|
from matplotlib.font_manager import FontProperties, get_font
|
||
|
|
from matplotlib.ft2font import (
|
||
|
|
KERNING_DEFAULT, LOAD_NO_HINTING, LOAD_TARGET_LIGHT)
|
||
|
|
from matplotlib.mathtext import MathTextParser
|
||
|
|
from matplotlib.path import Path
|
||
|
|
from matplotlib.transforms import Affine2D
|
||
|
|
|
||
|
|
_log = logging.getLogger(__name__)
|
||
|
|
|
||
|
|
|
||
|
|
class TextToPath(object):
|
||
|
|
"""A class that converts strings to paths."""
|
||
|
|
|
||
|
|
FONT_SCALE = 100.
|
||
|
|
DPI = 72
|
||
|
|
|
||
|
|
def __init__(self):
|
||
|
|
self.mathtext_parser = MathTextParser('path')
|
||
|
|
self._texmanager = None
|
||
|
|
|
||
|
|
@property
|
||
|
|
@cbook.deprecated("3.0")
|
||
|
|
def tex_font_map(self):
|
||
|
|
return dviread.PsfontsMap(dviread.find_tex_file('pdftex.map'))
|
||
|
|
|
||
|
|
def _get_font(self, prop):
|
||
|
|
"""
|
||
|
|
Find the `FT2Font` matching font properties *prop*, with its size set.
|
||
|
|
"""
|
||
|
|
fname = font_manager.findfont(prop)
|
||
|
|
font = get_font(fname)
|
||
|
|
font.set_size(self.FONT_SCALE, self.DPI)
|
||
|
|
return font
|
||
|
|
|
||
|
|
def _get_hinting_flag(self):
|
||
|
|
return LOAD_NO_HINTING
|
||
|
|
|
||
|
|
def _get_char_id(self, font, ccode):
|
||
|
|
"""
|
||
|
|
Return a unique id for the given font and character-code set.
|
||
|
|
"""
|
||
|
|
return urllib.parse.quote('{}-{}'.format(font.postscript_name, ccode))
|
||
|
|
|
||
|
|
def _get_char_id_ps(self, font, ccode):
|
||
|
|
"""
|
||
|
|
Return a unique id for the given font and character-code set (for tex).
|
||
|
|
"""
|
||
|
|
ps_name = font.get_ps_font_info()[2]
|
||
|
|
char_id = urllib.parse.quote('%s-%d' % (ps_name, ccode))
|
||
|
|
return char_id
|
||
|
|
|
||
|
|
@cbook.deprecated(
|
||
|
|
"3.1",
|
||
|
|
alternative="font.get_path() and manual translation of the vertices")
|
||
|
|
def glyph_to_path(self, font, currx=0.):
|
||
|
|
"""Convert the *font*'s current glyph to a (vertices, codes) pair."""
|
||
|
|
verts, codes = font.get_path()
|
||
|
|
if currx != 0.0:
|
||
|
|
verts[:, 0] += currx
|
||
|
|
return verts, codes
|
||
|
|
|
||
|
|
def get_text_width_height_descent(self, s, prop, ismath):
|
||
|
|
if rcParams['text.usetex']:
|
||
|
|
texmanager = self.get_texmanager()
|
||
|
|
fontsize = prop.get_size_in_points()
|
||
|
|
w, h, d = texmanager.get_text_width_height_descent(s, fontsize,
|
||
|
|
renderer=None)
|
||
|
|
return w, h, d
|
||
|
|
|
||
|
|
fontsize = prop.get_size_in_points()
|
||
|
|
scale = fontsize / self.FONT_SCALE
|
||
|
|
|
||
|
|
if ismath:
|
||
|
|
prop = prop.copy()
|
||
|
|
prop.set_size(self.FONT_SCALE)
|
||
|
|
|
||
|
|
width, height, descent, trash, used_characters = \
|
||
|
|
self.mathtext_parser.parse(s, 72, prop)
|
||
|
|
return width * scale, height * scale, descent * scale
|
||
|
|
|
||
|
|
font = self._get_font(prop)
|
||
|
|
font.set_text(s, 0.0, flags=LOAD_NO_HINTING)
|
||
|
|
w, h = font.get_width_height()
|
||
|
|
w /= 64.0 # convert from subpixels
|
||
|
|
h /= 64.0
|
||
|
|
d = font.get_descent()
|
||
|
|
d /= 64.0
|
||
|
|
return w * scale, h * scale, d * scale
|
||
|
|
|
||
|
|
@cbook._delete_parameter("3.1", "usetex")
|
||
|
|
def get_text_path(self, prop, s, ismath=False, usetex=False):
|
||
|
|
"""
|
||
|
|
Convert text *s* to path (a tuple of vertices and codes for
|
||
|
|
matplotlib.path.Path).
|
||
|
|
|
||
|
|
Parameters
|
||
|
|
----------
|
||
|
|
|
||
|
|
prop : `matplotlib.font_manager.FontProperties` instance
|
||
|
|
The font properties for the text.
|
||
|
|
|
||
|
|
s : str
|
||
|
|
The text to be converted.
|
||
|
|
|
||
|
|
ismath : {False, True, "TeX"}
|
||
|
|
If True, use mathtext parser. If "TeX", use tex for renderering.
|
||
|
|
|
||
|
|
usetex : bool, optional
|
||
|
|
If set, forces *ismath* to True. This parameter is deprecated.
|
||
|
|
|
||
|
|
Returns
|
||
|
|
-------
|
||
|
|
|
||
|
|
verts, codes : tuple of lists
|
||
|
|
*verts* is a list of numpy arrays containing the x and y
|
||
|
|
coordinates of the vertices. *codes* is a list of path codes.
|
||
|
|
|
||
|
|
Examples
|
||
|
|
--------
|
||
|
|
|
||
|
|
Create a list of vertices and codes from a text, and create a `Path`
|
||
|
|
from those::
|
||
|
|
|
||
|
|
from matplotlib.path import Path
|
||
|
|
from matplotlib.textpath import TextToPath
|
||
|
|
from matplotlib.font_manager import FontProperties
|
||
|
|
|
||
|
|
fp = FontProperties(family="Humor Sans", style="italic")
|
||
|
|
verts, codes = TextToPath().get_text_path(fp, "ABC")
|
||
|
|
path = Path(verts, codes, closed=False)
|
||
|
|
|
||
|
|
Also see `TextPath` for a more direct way to create a path from a text.
|
||
|
|
"""
|
||
|
|
if usetex:
|
||
|
|
ismath = "TeX"
|
||
|
|
if ismath == "TeX":
|
||
|
|
glyph_info, glyph_map, rects = self.get_glyphs_tex(prop, s)
|
||
|
|
elif not ismath:
|
||
|
|
font = self._get_font(prop)
|
||
|
|
glyph_info, glyph_map, rects = self.get_glyphs_with_font(font, s)
|
||
|
|
else:
|
||
|
|
glyph_info, glyph_map, rects = self.get_glyphs_mathtext(prop, s)
|
||
|
|
|
||
|
|
verts, codes = [], []
|
||
|
|
|
||
|
|
for glyph_id, xposition, yposition, scale in glyph_info:
|
||
|
|
verts1, codes1 = glyph_map[glyph_id]
|
||
|
|
if len(verts1):
|
||
|
|
verts1 = np.array(verts1) * scale + [xposition, yposition]
|
||
|
|
verts.extend(verts1)
|
||
|
|
codes.extend(codes1)
|
||
|
|
|
||
|
|
for verts1, codes1 in rects:
|
||
|
|
verts.extend(verts1)
|
||
|
|
codes.extend(codes1)
|
||
|
|
|
||
|
|
return verts, codes
|
||
|
|
|
||
|
|
def get_glyphs_with_font(self, font, s, glyph_map=None,
|
||
|
|
return_new_glyphs_only=False):
|
||
|
|
"""
|
||
|
|
Convert string *s* to vertices and codes using the provided ttf font.
|
||
|
|
"""
|
||
|
|
|
||
|
|
# Mostly copied from backend_svg.py.
|
||
|
|
|
||
|
|
lastgind = None
|
||
|
|
|
||
|
|
currx = 0
|
||
|
|
xpositions = []
|
||
|
|
glyph_ids = []
|
||
|
|
|
||
|
|
if glyph_map is None:
|
||
|
|
glyph_map = OrderedDict()
|
||
|
|
|
||
|
|
if return_new_glyphs_only:
|
||
|
|
glyph_map_new = OrderedDict()
|
||
|
|
else:
|
||
|
|
glyph_map_new = glyph_map
|
||
|
|
|
||
|
|
# I'm not sure if I get kernings right. Needs to be verified. -JJL
|
||
|
|
|
||
|
|
for c in s:
|
||
|
|
ccode = ord(c)
|
||
|
|
gind = font.get_char_index(ccode)
|
||
|
|
if gind is None:
|
||
|
|
ccode = ord('?')
|
||
|
|
gind = 0
|
||
|
|
|
||
|
|
if lastgind is not None:
|
||
|
|
kern = font.get_kerning(lastgind, gind, KERNING_DEFAULT)
|
||
|
|
else:
|
||
|
|
kern = 0
|
||
|
|
|
||
|
|
glyph = font.load_char(ccode, flags=LOAD_NO_HINTING)
|
||
|
|
horiz_advance = glyph.linearHoriAdvance / 65536
|
||
|
|
|
||
|
|
char_id = self._get_char_id(font, ccode)
|
||
|
|
if char_id not in glyph_map:
|
||
|
|
glyph_map_new[char_id] = font.get_path()
|
||
|
|
|
||
|
|
currx += kern / 64
|
||
|
|
|
||
|
|
xpositions.append(currx)
|
||
|
|
glyph_ids.append(char_id)
|
||
|
|
|
||
|
|
currx += horiz_advance
|
||
|
|
|
||
|
|
lastgind = gind
|
||
|
|
|
||
|
|
ypositions = [0] * len(xpositions)
|
||
|
|
sizes = [1.] * len(xpositions)
|
||
|
|
|
||
|
|
rects = []
|
||
|
|
|
||
|
|
return (list(zip(glyph_ids, xpositions, ypositions, sizes)),
|
||
|
|
glyph_map_new, rects)
|
||
|
|
|
||
|
|
def get_glyphs_mathtext(self, prop, s, glyph_map=None,
|
||
|
|
return_new_glyphs_only=False):
|
||
|
|
"""
|
||
|
|
Parse mathtext string *s* and convert it to a (vertices, codes) pair.
|
||
|
|
"""
|
||
|
|
|
||
|
|
prop = prop.copy()
|
||
|
|
prop.set_size(self.FONT_SCALE)
|
||
|
|
|
||
|
|
width, height, descent, glyphs, rects = self.mathtext_parser.parse(
|
||
|
|
s, self.DPI, prop)
|
||
|
|
|
||
|
|
if not glyph_map:
|
||
|
|
glyph_map = OrderedDict()
|
||
|
|
|
||
|
|
if return_new_glyphs_only:
|
||
|
|
glyph_map_new = OrderedDict()
|
||
|
|
else:
|
||
|
|
glyph_map_new = glyph_map
|
||
|
|
|
||
|
|
xpositions = []
|
||
|
|
ypositions = []
|
||
|
|
glyph_ids = []
|
||
|
|
sizes = []
|
||
|
|
|
||
|
|
for font, fontsize, ccode, ox, oy in glyphs:
|
||
|
|
char_id = self._get_char_id(font, ccode)
|
||
|
|
if char_id not in glyph_map:
|
||
|
|
font.clear()
|
||
|
|
font.set_size(self.FONT_SCALE, self.DPI)
|
||
|
|
glyph = font.load_char(ccode, flags=LOAD_NO_HINTING)
|
||
|
|
glyph_map_new[char_id] = font.get_path()
|
||
|
|
|
||
|
|
xpositions.append(ox)
|
||
|
|
ypositions.append(oy)
|
||
|
|
glyph_ids.append(char_id)
|
||
|
|
size = fontsize / self.FONT_SCALE
|
||
|
|
sizes.append(size)
|
||
|
|
|
||
|
|
myrects = []
|
||
|
|
for ox, oy, w, h in rects:
|
||
|
|
vert1 = [(ox, oy), (ox, oy + h), (ox + w, oy + h),
|
||
|
|
(ox + w, oy), (ox, oy), (0, 0)]
|
||
|
|
code1 = [Path.MOVETO,
|
||
|
|
Path.LINETO, Path.LINETO, Path.LINETO, Path.LINETO,
|
||
|
|
Path.CLOSEPOLY]
|
||
|
|
myrects.append((vert1, code1))
|
||
|
|
|
||
|
|
return (list(zip(glyph_ids, xpositions, ypositions, sizes)),
|
||
|
|
glyph_map_new, myrects)
|
||
|
|
|
||
|
|
def get_texmanager(self):
|
||
|
|
"""Return the cached `~.texmanager.TexManager` instance."""
|
||
|
|
if self._texmanager is None:
|
||
|
|
from matplotlib.texmanager import TexManager
|
||
|
|
self._texmanager = TexManager()
|
||
|
|
return self._texmanager
|
||
|
|
|
||
|
|
def get_glyphs_tex(self, prop, s, glyph_map=None,
|
||
|
|
return_new_glyphs_only=False):
|
||
|
|
"""Convert the string *s* to vertices and codes using usetex mode."""
|
||
|
|
# Mostly borrowed from pdf backend.
|
||
|
|
|
||
|
|
dvifile = self.get_texmanager().make_dvi(s, self.FONT_SCALE)
|
||
|
|
with dviread.Dvi(dvifile, self.DPI) as dvi:
|
||
|
|
page, = dvi
|
||
|
|
|
||
|
|
if glyph_map is None:
|
||
|
|
glyph_map = OrderedDict()
|
||
|
|
|
||
|
|
if return_new_glyphs_only:
|
||
|
|
glyph_map_new = OrderedDict()
|
||
|
|
else:
|
||
|
|
glyph_map_new = glyph_map
|
||
|
|
|
||
|
|
glyph_ids, xpositions, ypositions, sizes = [], [], [], []
|
||
|
|
|
||
|
|
# Gather font information and do some setup for combining
|
||
|
|
# characters into strings.
|
||
|
|
for x1, y1, dvifont, glyph, width in page.text:
|
||
|
|
font, enc = self._get_ps_font_and_encoding(dvifont.texname)
|
||
|
|
char_id = self._get_char_id_ps(font, glyph)
|
||
|
|
|
||
|
|
if char_id not in glyph_map:
|
||
|
|
font.clear()
|
||
|
|
font.set_size(self.FONT_SCALE, self.DPI)
|
||
|
|
# See comments in _get_ps_font_and_encoding.
|
||
|
|
if enc is not None:
|
||
|
|
index = font.get_name_index(enc[glyph])
|
||
|
|
font.load_glyph(index, flags=LOAD_TARGET_LIGHT)
|
||
|
|
else:
|
||
|
|
font.load_char(glyph, flags=LOAD_TARGET_LIGHT)
|
||
|
|
glyph_map_new[char_id] = font.get_path()
|
||
|
|
|
||
|
|
glyph_ids.append(char_id)
|
||
|
|
xpositions.append(x1)
|
||
|
|
ypositions.append(y1)
|
||
|
|
sizes.append(dvifont.size / self.FONT_SCALE)
|
||
|
|
|
||
|
|
myrects = []
|
||
|
|
|
||
|
|
for ox, oy, h, w in page.boxes:
|
||
|
|
vert1 = [(ox, oy), (ox + w, oy), (ox + w, oy + h),
|
||
|
|
(ox, oy + h), (ox, oy), (0, 0)]
|
||
|
|
code1 = [Path.MOVETO,
|
||
|
|
Path.LINETO, Path.LINETO, Path.LINETO, Path.LINETO,
|
||
|
|
Path.CLOSEPOLY]
|
||
|
|
myrects.append((vert1, code1))
|
||
|
|
|
||
|
|
return (list(zip(glyph_ids, xpositions, ypositions, sizes)),
|
||
|
|
glyph_map_new, myrects)
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
@functools.lru_cache(50)
|
||
|
|
def _get_ps_font_and_encoding(texname):
|
||
|
|
tex_font_map = dviread.PsfontsMap(dviread.find_tex_file('pdftex.map'))
|
||
|
|
font_bunch = tex_font_map[texname]
|
||
|
|
if font_bunch.filename is None:
|
||
|
|
raise ValueError(
|
||
|
|
f"No usable font file found for {font_bunch.psname} "
|
||
|
|
f"({texname}). The font may lack a Type-1 version.")
|
||
|
|
|
||
|
|
font = get_font(font_bunch.filename)
|
||
|
|
|
||
|
|
if font_bunch.encoding:
|
||
|
|
# If psfonts.map specifies an encoding, use it: it gives us a
|
||
|
|
# mapping of glyph indices to Adobe glyph names; use it to convert
|
||
|
|
# dvi indices to glyph names and use the FreeType-synthesized
|
||
|
|
# unicode charmap to convert glyph names to glyph indices (with
|
||
|
|
# FT_Get_Name_Index/get_name_index), and load the glyph using
|
||
|
|
# FT_Load_Glyph/load_glyph. (That charmap has a coverage at least
|
||
|
|
# as good as, and possibly better than, the native charmaps.)
|
||
|
|
enc = dviread._parse_enc(font_bunch.encoding)
|
||
|
|
else:
|
||
|
|
# If psfonts.map specifies no encoding, the indices directly
|
||
|
|
# map to the font's "native" charmap; so don't use the
|
||
|
|
# FreeType-synthesized charmap but the native ones (we can't
|
||
|
|
# directly identify it but it's typically an Adobe charmap), and
|
||
|
|
# directly load the dvi glyph indices using FT_Load_Char/load_char.
|
||
|
|
for charmap_name, charmap_code in [
|
||
|
|
("ADOBE_CUSTOM", 1094992451),
|
||
|
|
("ADOBE_STANDARD", 1094995778),
|
||
|
|
]:
|
||
|
|
try:
|
||
|
|
font.select_charmap(charmap_code)
|
||
|
|
except (ValueError, RuntimeError):
|
||
|
|
pass
|
||
|
|
else:
|
||
|
|
break
|
||
|
|
else:
|
||
|
|
charmap_name = ""
|
||
|
|
_log.warning("No supported encoding in font (%s).",
|
||
|
|
font_bunch.filename)
|
||
|
|
enc = None
|
||
|
|
|
||
|
|
return font, enc
|
||
|
|
|
||
|
|
|
||
|
|
text_to_path = TextToPath()
|
||
|
|
|
||
|
|
|
||
|
|
class TextPath(Path):
|
||
|
|
"""
|
||
|
|
Create a path from the text.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, xy, s, size=None, prop=None,
|
||
|
|
_interpolation_steps=1, usetex=False,
|
||
|
|
*args, **kwargs):
|
||
|
|
r"""
|
||
|
|
Create a path from the text. Note that it simply is a path,
|
||
|
|
not an artist. You need to use the `~.PathPatch` (or other artists)
|
||
|
|
to draw this path onto the canvas.
|
||
|
|
|
||
|
|
Parameters
|
||
|
|
----------
|
||
|
|
|
||
|
|
xy : tuple or array of two float values
|
||
|
|
Position of the text. For no offset, use ``xy=(0, 0)``.
|
||
|
|
|
||
|
|
s : str
|
||
|
|
The text to convert to a path.
|
||
|
|
|
||
|
|
size : float, optional
|
||
|
|
Font size in points. Defaults to the size specified via the font
|
||
|
|
properties *prop*.
|
||
|
|
|
||
|
|
prop : `matplotlib.font_manager.FontProperties`, optional
|
||
|
|
Font property. If not provided, will use a default
|
||
|
|
``FontProperties`` with parameters from the
|
||
|
|
:ref:`rcParams <matplotlib-rcparams>`.
|
||
|
|
|
||
|
|
_interpolation_steps : integer, optional
|
||
|
|
(Currently ignored)
|
||
|
|
|
||
|
|
usetex : bool, optional
|
||
|
|
Whether to use tex rendering. Defaults to ``False``.
|
||
|
|
|
||
|
|
Examples
|
||
|
|
--------
|
||
|
|
|
||
|
|
The following creates a path from the string "ABC" with Helvetica
|
||
|
|
font face; and another path from the latex fraction 1/2::
|
||
|
|
|
||
|
|
from matplotlib.textpath import TextPath
|
||
|
|
from matplotlib.font_manager import FontProperties
|
||
|
|
|
||
|
|
fp = FontProperties(family="Helvetica", style="italic")
|
||
|
|
path1 = TextPath((12,12), "ABC", size=12, prop=fp)
|
||
|
|
path2 = TextPath((0,0), r"$\frac{1}{2}$", size=12, usetex=True)
|
||
|
|
|
||
|
|
Also see :doc:`/gallery/text_labels_and_annotations/demo_text_path`.
|
||
|
|
"""
|
||
|
|
# Circular import.
|
||
|
|
from matplotlib.text import Text
|
||
|
|
|
||
|
|
if args or kwargs:
|
||
|
|
cbook.warn_deprecated(
|
||
|
|
"3.1", message="Additional arguments to TextPath used to be "
|
||
|
|
"ignored, but will trigger a TypeError %(removal)s.")
|
||
|
|
|
||
|
|
if prop is None:
|
||
|
|
prop = FontProperties()
|
||
|
|
if size is None:
|
||
|
|
size = prop.get_size_in_points()
|
||
|
|
|
||
|
|
self._xy = xy
|
||
|
|
self.set_size(size)
|
||
|
|
|
||
|
|
self._cached_vertices = None
|
||
|
|
s, ismath = Text(usetex=usetex)._preprocess_math(s)
|
||
|
|
self._vertices, self._codes = text_to_path.get_text_path(
|
||
|
|
prop, s, ismath=ismath)
|
||
|
|
self._should_simplify = False
|
||
|
|
self._simplify_threshold = rcParams['path.simplify_threshold']
|
||
|
|
self._interpolation_steps = _interpolation_steps
|
||
|
|
|
||
|
|
def set_size(self, size):
|
||
|
|
"""Set the text size."""
|
||
|
|
self._size = size
|
||
|
|
self._invalid = True
|
||
|
|
|
||
|
|
def get_size(self):
|
||
|
|
"""Get the text size."""
|
||
|
|
return self._size
|
||
|
|
|
||
|
|
@property
|
||
|
|
def vertices(self):
|
||
|
|
"""
|
||
|
|
Return the cached path after updating it if necessary.
|
||
|
|
"""
|
||
|
|
self._revalidate_path()
|
||
|
|
return self._cached_vertices
|
||
|
|
|
||
|
|
@property
|
||
|
|
def codes(self):
|
||
|
|
"""
|
||
|
|
Return the codes
|
||
|
|
"""
|
||
|
|
return self._codes
|
||
|
|
|
||
|
|
def _revalidate_path(self):
|
||
|
|
"""
|
||
|
|
Update the path if necessary.
|
||
|
|
|
||
|
|
The path for the text is initially create with the font size of
|
||
|
|
`~.FONT_SCALE`, and this path is rescaled to other size when necessary.
|
||
|
|
"""
|
||
|
|
if self._invalid or self._cached_vertices is None:
|
||
|
|
tr = Affine2D().scale(
|
||
|
|
self._size / text_to_path.FONT_SCALE,
|
||
|
|
self._size / text_to_path.FONT_SCALE).translate(*self._xy)
|
||
|
|
self._cached_vertices = tr.transform(self._vertices)
|
||
|
|
self._invalid = False
|
||
|
|
|
||
|
|
@cbook.deprecated("3.1")
|
||
|
|
def is_math_text(self, s):
|
||
|
|
"""
|
||
|
|
Returns True if the given string *s* contains any mathtext.
|
||
|
|
"""
|
||
|
|
# copied from Text.is_math_text -JJL
|
||
|
|
|
||
|
|
# Did we find an even number of non-escaped dollar signs?
|
||
|
|
# If so, treat is as math text.
|
||
|
|
dollar_count = s.count(r'$') - s.count(r'\$')
|
||
|
|
even_dollars = (dollar_count > 0 and dollar_count % 2 == 0)
|
||
|
|
|
||
|
|
if rcParams['text.usetex']:
|
||
|
|
return s, 'TeX'
|
||
|
|
|
||
|
|
if even_dollars:
|
||
|
|
return s, True
|
||
|
|
else:
|
||
|
|
return s.replace(r'\$', '$'), False
|
||
|
|
|
||
|
|
@cbook.deprecated("3.1", alternative="TextPath")
|
||
|
|
def text_get_vertices_codes(self, prop, s, usetex):
|
||
|
|
"""
|
||
|
|
Convert string *s* to a (vertices, codes) pair using font property
|
||
|
|
*prop*.
|
||
|
|
"""
|
||
|
|
# Mostly copied from backend_svg.py.
|
||
|
|
if usetex:
|
||
|
|
return text_to_path.get_text_path(prop, s, usetex=True)
|
||
|
|
else:
|
||
|
|
clean_line, ismath = self.is_math_text(s)
|
||
|
|
return text_to_path.get_text_path(prop, clean_line, ismath=ismath)
|