You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
2.1 KiB
78 lines
2.1 KiB
#! /usr/bin/env node
|
|
|
|
/*************************************************************************
|
|
*
|
|
* tex2png
|
|
*
|
|
* Uses MathJax and batik to convert a TeX or LaTeX string to
|
|
* a PNG image.
|
|
*
|
|
* ----------------------------------------------------------------------
|
|
*
|
|
* Copyright (c) 2014 The MathJax Consortium
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
var mjAPI = require("../lib/mj-single.js");
|
|
|
|
var argv = require("yargs")
|
|
.demand(1).strict()
|
|
.usage("Usage: tex2png [options] 'math' > file.png",{
|
|
inline: {
|
|
boolean: true,
|
|
describe: "process as in-line TeX"
|
|
},
|
|
linebreaks: {
|
|
boolean: true,
|
|
describe: "perform automatic line-breaking"
|
|
},
|
|
dpi: {
|
|
default: 0,
|
|
describe: "dpi for image (0 = calculate automatically)"
|
|
},
|
|
font: {
|
|
default: "TeX",
|
|
describe: "web font to use"
|
|
},
|
|
ex: {
|
|
default: 6,
|
|
describe: "ex-size in pixels"
|
|
},
|
|
width: {
|
|
default: 100,
|
|
describe: "width of container in ex"
|
|
},
|
|
extensions: {
|
|
default: "",
|
|
describe: "extra MathJax extensions e.g. 'Safe,TeX/noUndefined'"
|
|
}
|
|
})
|
|
.argv;
|
|
|
|
if (argv.font === "STIX") argv.font = "STIX-Web";
|
|
mjAPI.config({MathJax: {SVG: {font: argv.font}}, extensions: argv.extensions});
|
|
mjAPI.start();
|
|
|
|
if (argv.dpi === 0) {argv.dpi = argv.ex * 16} // pixels properly sized
|
|
|
|
mjAPI.typeset({
|
|
math: argv._[0],
|
|
format: (argv.inline ? "inline-TeX" : "TeX"),
|
|
png:true, dpi:argv.dpi,
|
|
ex: argv.ex, width: argv.width,
|
|
linebreaks: argv.linebreaks
|
|
}, function (data) {
|
|
if (!data.errors) {process.stdout.write(new Buffer(data.png.slice(22),'base64'))}
|
|
});
|