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Improve coordinate system calculations for font-size, letter-spacing etc.

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Fix parsing of transform to account for single parameter scale and translate correctly.
Fix skewX, had opposite of intended effect.
https://www.w3.org/TR/SVG/coords.html
https://www.w3.org/TR/SVG2/coords.html
https://www.w3.org/TR/SVGTiny12/coords.html
https://www.w3.org/TR/SVG/coords.html#TransformAttribute
https://www.w3.org/TR/SVG/coords.html#SkewXDefined
This commit is contained in:
Mikael Sand
2017-06-27 20:45:04 +03:00
parent f7f1909249
commit c7039588f6
6 changed files with 65 additions and 8 deletions
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2
lib/Matrix2D.js
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@@ -215,7 +215,7 @@ export default class Matrix2D {
// TODO: can this be combined into a single append operation?
skewX *= DEG_TO_RAD;
skewY *= DEG_TO_RAD;
this.append(Math.cos(skewY), Math.sin(skewY), -Math.sin(skewX), Math.cos(skewX), x, y);
this.append(Math.cos(skewY), Math.sin(skewY), Math.sin(skewX), Math.cos(skewX), x, y);
this.append(cos * scaleX, sin * scaleX, -sin * scaleY, cos * scaleY, 0, 0);
} else {
this.append(cos * scaleX, sin * scaleX, -sin * scaleY, cos * scaleY, x, y);