suzanne.soy/scribble-mathjax
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Add a pixel extra around the SVG image to accommodate antialiasing pixels. Also, try to work around truncation versus rounding issue in Chrome for ex-sizes (may not work well in other browsers, though). Addresses issue #383.

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This commit is contained in:
Davide P. Cervone 2013-01-31 15:39:21 -05:00
parent f8d4215519
commit caa965d23d
2 changed files with 13 additions and 6 deletions
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2
unpacked/jax/output/SVG/config.js
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@ -24,7 +24,7 @@
MathJax.OutputJax.SVG = MathJax.OutputJax({
id: "SVG",
version: "2.1",
version: "2.1.1",
directory: MathJax.OutputJax.directory + "/SVG",
extensionDir: MathJax.OutputJax.extensionDir + "/SVG",
autoloadDir: MathJax.OutputJax.directory + "/SVG/autoload",

17
unpacked/jax/output/SVG/jax.js
View File

@ -414,8 +414,15 @@
if (Math.abs(m) < .0006) {return "0em"}
return m.toFixed(3).replace(/\.?0+$/,"") + "em";
},
/*
* Ex: function (m) {
* m = m / this.TeX.x_height;
* if (Math.abs(m) < .0006) {return "0ex"}
* return m.toFixed(3).replace(/\.?0+$/,"") + "ex";
* },
*/
Ex: function (m) {
m = m / this.TeX.x_height;
m = Math.round(m / this.TeX.x_height * this.ex) / this.ex;
if (Math.abs(m) < .0006) {return "0ex"}
return m.toFixed(3).replace(/\.?0+$/,"") + "ex";
},
@ -1891,10 +1898,10 @@
var l = Math.max(-svg.l,0), r = Math.max(svg.r-svg.w,0);
var style = svg.element.style;
style.width = SVG.Ex(l+svg.w+r);
style.height = SVG.Ex(svg.H+svg.D);
style.verticalAlign = SVG.Ex(-svg.D-2*SVG.em); // remove 2 extra pixels added below
style.height = SVG.Ex(svg.H+svg.D+2*SVG.em);
style.verticalAlign = SVG.Ex(-svg.D-3*SVG.em); // remove 2 extra pixels added below plus padding
style.marginLeft = SVG.Ex(-l); style.marginRight = SVG.Ex(-r);
svg.element.setAttribute("viewBox",(-l)+" "+(-svg.H)+" "+(l+svg.w+r)+" "+(svg.H+svg.D));
svg.element.setAttribute("viewBox",(-l)+" "+(-svg.H-SVG.em)+" "+(l+svg.w+r)+" "+(svg.H+svg.D+2*SVG.em));
svg.element.style.margin="1px 0px"; // 1px above and below to prevent lines from touching
//
// If there is extra height or depth, hide that
@ -1906,7 +1913,7 @@
width:SVG.Ex(svg.w), height:SVG.Ex(svg.h+svg.d),
"vertical-align":SVG.Ex(-svg.d)}}]]);
frame.firstChild.appendChild(svg.element); svg.element = frame;
style.verticalAlign = ""; style.position = "absolute";
style.verticalAlign = style.margin = ""; style.position = "absolute";
style.bottom = SVG.Ex(svg.d-svg.D); style.left = 0;
}
//