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Output SVG instead of PNG for LaTeX

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Fionn Kelleher 2015-11-22 13:25:18 +00:00
parent 52f8a4a75e
commit da437fa16e
1 changed files with 7 additions and 4 deletions
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11
anki/latex.py
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@ -7,11 +7,14 @@ from anki.utils import checksum, call, namedtmp, tmpdir, isMac, stripHTML
from anki.hooks import addHook from anki.hooks import addHook
from anki.lang import _ from anki.lang import _
# change this if latexCmds outputs alternate filetype
outputFileExt = "svg"
# if you modify these in an add-on, you must make sure to take tmp.tex as the # if you modify these in an add-on, you must make sure to take tmp.tex as the
# input, and output tmp.png as the output file # input, and change outputFileExt to the output file extension
latexCmds = [ latexCmds = [
["latex", "-interaction=nonstopmode", "tmp.tex"], ["latex", "-interaction=nonstopmode", "tmp.tex"],
["dvipng", "-D", "200", "-T", "tight", "tmp.dvi", "-o", "tmp.png"] ["dvisvgm", "--no-fonts", "tmp.dvi", "-o", "tmp.%s" % outputFileExt]
# ["dvipng", "-D", "600", "-T", "tight", "-bg", "Transparent", "tmp.dvi", "-o", "tmp.png"] # ["dvipng", "-D", "600", "-T", "tight", "-bg", "Transparent", "tmp.dvi", "-o", "tmp.png"]
] ]
@ -51,7 +54,7 @@ def mungeQA(html, type, fields, model, data, col):
def _imgLink(col, latex, model): def _imgLink(col, latex, model):
"Return an img link for LATEX, creating if necesssary." "Return an img link for LATEX, creating if necesssary."
txt = _latexFromHtml(col, latex) txt = _latexFromHtml(col, latex)
fname = "latex-%s.png" % checksum(txt.encode("utf8")) fname = "latex-%s.%s" % (checksum(txt.encode("utf8")), outputFileExt)
link = '<img class=latex src="%s">' % fname link = '<img class=latex src="%s">' % fname
if os.path.exists(fname): if os.path.exists(fname):
return link return link
@ -96,7 +99,7 @@ package in the LaTeX header instead.""") % bad
texfile.close() texfile.close()
mdir = col.media.dir() mdir = col.media.dir()
oldcwd = os.getcwd() oldcwd = os.getcwd()
png = namedtmp("tmp.png") png = namedtmp("tmp.%s", outputFileExt)
try: try:
# generate png # generate png
os.chdir(tmpdir()) os.chdir(tmpdir())