def parse(filename):
eqs_all = []
eqs_count = 0
fileOriginal = open(filename)
fileParsed = open(PARSED_PREFIX+filename, 'w+')
ineqa = False
for line in fileOriginal:
if MATH_TOKEN in line:
# assume all $$$ are paired
eqs_all = eqs_all + extractEqs(line)
eqs_new_count = len(eqs_all)
text = extractText(line)
line = ''
for i in range(eqs_new_count - eqs_count):
line = line + text[i] + getImgMarkdown(eqs_count+i)
line = line + text[-1]
fileParsed.writelines(line)
eqs_count = eqs_new_count
else:
fileParsed.writelines(line)
latexmath2png.math2png(eqs_all, outdir=MATH_IMG_PATH, prefix=MATH_IMG_PREFIX, size = MATH_IMG_SIZE)
fileOriginal.close()
fileParsed.close()
Author: Kamran Riaz Khan <*****@*****.**>
"""
import gtk
import os
import latexmath2png
pre = 'gtktex_'
eqs = [
r'$\alpha_i > \beta_i$',
r'$\sum_{i=0}^\infty x_i$',
r'$\left(\frac{5 - \frac{1}{x}}{4}\right)$',
r'$s(t) = \mathcal{A}\sin(2 \omega t)$',
r'a_d:=6+\frac{7}{(4+5)}\cdot6=6'
]
latexmath2png.math2png(eqs, os.getcwd(), prefix = pre)
def window_destroy(widget):
for i in range(0, len(eqs)):
os.unlink(os.path.join(os.getcwd(), '%s%d.png' % (pre, i + 1)))
gtk.main_quit()
window = gtk.Window()
window.set_border_width(10)
window.set_title('LaTeX Equations in GTK')
window.connect('destroy', window_destroy)
vbox = gtk.VBox(spacing = 10)
window.add(vbox)
images = [None] * len(eqs)
for i in range(len(eqs)):
# A quick guide to tex equations
"""def math2png(eqs, outdir, packages = default_packages, prefix = '', size = 1):
Parameters:
eqs - A list of equations
outdir - Output directory for PNG images
packages - Optional list of packages to include in the LaTeX preamble
prefix - Optional prefix for output files
size - Scale factor for output"""
pre = 'gtktex_'
eqs = [
r'$\alpha_i > \beta_i$', r'$\sum_{i=0}^\infty x_i$',
r'$\left(\frac{5 - \frac{1}{x}}{4}\right)$',
r'$s(t) = \mathcal{A}\sin(2 \omega t)$',
r'$\sum_{n=1}^\infty\frac{-e^{i\pi}}{2^n}$'
]
latexmath2png.math2png(eqs, "./equations/", prefix=pre)
latexmath2png.math2png([r'Y = c + \alpha~D + \beta~G(x)~D^2'],
"./equations/",
prefix="YfuncG",
size=1.5)
latexmath2png.math2png([r'Y = c + \alpha~D + \beta~D^2'],
"./equations/",
prefix="Yfunc",
size=1.5)
latexmath2png.math2png(
[r'$G(x) = \frac{2}{x^2}~\left( x-1+e^{-x} \right),~~~x=\frac{t}{t_0}$'],
"./equations/",
prefix="Gfunc",
size=1.3)
import matplotlib.mathtext as mathtext
import matplotlib.pyplot as plt
import matplotlib
import re
matplotlib.rc('image', origin='upper')
matplotlib.rcParams['text.latex.preamble']=[r"\usepackage{amsmath}"]
matplotlib.rc('text', usetex=True)
from latexmath2png import math2png
'''
parser = mathtext.MathTextParser("Bitmap")
#latextext = latextext.replace(r'\',r'\\')
print latextext
parser.to_png('test2.png',r'$\alpha$' r'$\\\\$' r'$\beta$'
, color='k', fontsize=14, dpi=100)
print 1
'''
latextext = r"""\[\left\{ \begin{array}{l}
{y_1}\left( {x = d} \right) = {y_3}\left( {x = d} \right)\\
\frac{{d{y_1}}}{{dx}}(x = d) = \frac{{d{y_3}}}{{dx}}(x = d)\\
\frac{{d{y_1}}}{{dx}}(x = 0) = 0\\
- EI\frac{{{d^3}{y_1}}}{{d{x^3}}}(x = 0) + \frac{P}{2} = 0
\end{array} \right.\]"""
math2png([latextext],'test')
def updateimg(self,g,h):
if self.edit.get_text():
latexmath2png.math2png([self.edit.get_text()], os.getcwd(), prefix = "pre")
self.btn.set_from_file('pre1.png')
self.btn.show()
self.edit.hide()