SVG Conformance

AH Formatter V7.1 conforms to W3C Scalable Vector Graphics (SVG) 1.1 and supports to display SVG images with a newly developed engine. This makes it possible to output high quality SVG images as vectors in the PDF. See also Graphics to learn how to utilize SVG.

The below table shows the implemented SVG elements. They are implemented focusing on basic drawing elements.

[yes] in the list means that the element or property is implemented.
[partial] means that the element or property is partially implemented.
[no] means not implemented.

CAUTION:	This conformance is not for SVG Output.

Element	Attribute	Condition	Comments
5.1 <svg>		yes	xmlns="http://www.w3.org/2000/svg"
	version	no	When SVG is referenced in upper XML such as FO or HTML, the following properties specified in upper XML is inherited. font-family font-size font-weight font-style
	x	yes
	y	yes
	width	yes
	height	yes
	viewBox	yes
	preserveAspectRatio	yes
	zoomAndPan	no
	baseProfile	no
	contentScriptType	no
	contentStyleType	yes
	class	yes
	style	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
5.2 <g>		yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
5.3 <defs>		yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
5.4 <desc>		yes	Ignored.
	class	yes
	style	yes
	Core Attributes
5.4 <title>		yes	Ignored.
	class	yes
	style	yes
	Core Attributes
5.5 <symbol>		yes
	viewBox	yes
	preserveAspectRatio	yes
	class	yes
	style	yes
	Core Attributes
	Presentation Attributes
5.6 <use>		yes
	x	yes
	y	yes
	width	yes
	height	yes
	class	yes
	style	yes
	transform	yes
	xlink:href	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
5.7 <image>		yes
	x	yes	[defer] in preserveAspectRatio is ignored.
	y	yes
	width	yes
	height	yes
	preserveAspectRatio	yes
	class	yes
	style	yes
	transform	yes
	xlink:href	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
5.8.2 <switch>		partial
	class	yes	The child element which has the requiredFeatures or the requiredExtensions attribute is ignored. The child element with the systemLanguage attribute that matches to the language of running environment, or the first element which doesn't have the systemLanguage attribute is effective. When the systemLanguage attribute matches to the xml:lang property and the language attribute in XSL-FO, it will take priority over the operating system language.
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
6.10 <style>		yes
	type	yes	Supports type="text/css" only.
	media	no
	title	no
	Core Attributes
8.2 <path>		yes
	d	yes
	pathLength	yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
9.2 <rect>		yes
	x	yes
	y	yes
	width	yes
	height	yes
	rx	yes
	ry	yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
9.3 <circle>		yes
	cx	yes
	cy	yes
	r	yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
9.4 <ellipse>		yes
	cx	yes
	cy	yes
	rx	yes
	ry	yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
9.5 <line>		yes
	x1	yes
	y1	yes
	x2	yes
	y2	yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
9.6 <polyline>		yes
	points	yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
9.7 <polygon>		yes
	points	yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
10.4 <text>		yes
	x	yes
	y	yes
	dx	yes
	dy	yes
	rotate	yes
	textLength	yes
	lengthAdjust	no
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
10.5 <tspan>		yes
	x	yes
	y	yes
	dx	yes
	dy	yes
	rotate	yes
	textLength	yes
	lengthAdjust	no
	class	yes
	style	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
10.6 <tref>		yes
	xlink:href	yes
	class	yes
	style	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
10.13.2 <textPath>		no
10.14 <altGlyph>		no
10.14 <altGlyphDef>		no
10.14 <altGlyphItem>		no
10.14 <glyphRef>		no
11.6.2 <marker>		yes
	markerUnits	yes
	refX	yes
	refY	yes
	markerWidth	yes
	markerHeight	yes
	orient	yes
	viewBox	yes
	preserveAspectRatio	yes
	class	yes
	style	yes
	Core Attributes
	Presentation Attributes
12.3.3 <color-profile>		no
13.2.2 <linearGradient>		yes
	gradientUnits	yes
	gradientTransform	yes
	x1	yes
	y1	yes
	x2	yes
	y2	yes
	spreadMethod	yes
	xlink:href	yes
	class	yes
	style	yes
	Core Attributes
	Presentation Attributes
13.2.3 <radialGradient>		yes
	gradientUnits	yes
	gradientTransform	yes
	cx	yes
	cy	yes
	r	yes
	fx	yes
	fy	yes
	spreadMethod	yes
	xlink:href	yes
	class	yes
	style	yes
	Core Attributes
	Presentation Attributes
13.2.4 <stop>		yes
	offset	yes
	class	yes
	style	yes
	Core Attributes
	Presentation Attributes
13.3.3 <pattern>		yes
	patternUnits	yes
	patternContentUnits	yes
	patternTransform	yes
	x	yes
	y	yes
	width	yes
	height	yes
	viewBox	yes
	preserveAspectRatio	yes
	xlink:href	yes
	class	yes
	style	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
14.3.5 <clipPath>		yes
	clipPathUnits	yes
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
14.4 <mask>		no
15.3 <filter>		no
15.8.2 <feDistantLight>		no
15.8.3 <fePointLight>		no
15.8.4 <feSpotLight>		no
15.9 <feBlend>		no
15.10 <feColorMatrix>		no
15.11 <feComponentTransfer>		no
15.11 <feFuncR>		no
15.11 <feFuncG>		no
15.11 <feFuncB>		no
15.11 <feFuncA>		no
15.12 <feComposite>		no
15.13 <feConvolveMatrix>		no
15.14 <feDiffuseLighting>		no
15.15 <feDisplacementMap>		no
15.16 <feFlood>		no
15.17 <feGaussianBlur>		no
15.18 <feImage>		no
15.19 <feMerge>		no
15.19 <feMergeNote>		no
15.20 <feMorphology>		no
15.21 <feOffset>		no
15.22 <feSpecularLighting>		no
15.23 <feTile>		no
15.24 <feTurbulence>		no
16.8.3 <cursor>		no
17.1 <a>		partial
	target	no	For xlink:href, you can also specify a format such as #nameddest=Chapter6 in Making Link. Hot spots are made rectangular. It does not function in GUI.
	xlink:href	yes
	xlink:show	no
	xlink:actuate	no
	class	yes
	style	yes
	transform	yes
	Core Attributes
	Conditional Processing Attributes
	Presentation Attributes
17.3.3 <view>		no
	viewBox	no
	preserveAspectRatio	no
	zoomAndPan	no
	viewTarget	no
	Core Attributes
18.2 <script>		no
19.2.10 <animate>		no
19.2.11 <set>		no
19.2.12 <animateMotion>		no
19.2.12 <mpath>		no
19.2.13 <animateColor>		no
19.2.14 <animateTransform>		no
20.3 <font>		no
20.4 <glyph>		no
20.5 <missing-glyph>		no
20.7 <hkern>		no
20.7 <vkern>		no
20.8.3 <font-face>		no
20.8.3 <font-face-src>		no
20.8.3 <font-face-uri>		no
20.8.3 <font-face-format>		no
20.8.3 <font-face-name>		no
20.8.3 <definition-src>		no
21.2 <metadata>		no
23.3 <foreignObject>		no
Core Attributes
	id	yes
	xml:base	no
	xml:lang	no
	xml:space	yes
Conditional Processing Attributes
	requiredFeatures	no
	requiredExtensions	no
	systemLanguage	yes
Presentation Attributes
	writing-mode	yes
	glyph-orientation-vertical	no
	glyph-orientation-horizontal	no
	direction	yes
	unicode-bidi	yes
	text-anchor	yes
	dominant-baseline	no
	alignment-baseline	no
	baseline-shift	no
	font-family	yes
	font-style	yes
	font-variant	yes
	font-weight	yes
	font-stretch	yes
	font-size	yes
	font-size-adjust	yes
	kerning	no
	letter-spacing	yes
	word-spacing	yes
	text-decoration	yes
	fill	yes
	fill-rule	yes
	fill-opacity	yes
	stroke	yes
	stroke-width	yes
	stroke-linecap	yes
	stroke-linejoin	yes
	stroke-miterlimit	yes
	stroke-dasharray	yes
	stroke-dashoffset	yes
	stroke-opacity	yes
	display	yes
	visibility	yes
	marker-start	yes
	marker-end	yes
	marker-mid	yes
	color-interpolation	no
	color-interpolation-filters	no
	color-rendering	no
	shape-rendering	no
	text-rendering	no
	image-rendering	no
	color	yes
	color-profile	no
	stop-color	yes
	stop-opacity	yes
	overflow	yes
	clip	yes
	clip-path	yes
	clip-rule	yes
	opacity	yes

Elements and attributes not listed in the above table are not supported.

SVG in gzip file format is supported.

Restrictions

Only CSS can be described in <style>. Evaluates CSS2 selectors and a part of CSS3 selectors, but has the following restrictions: The same applies to external CSS.
- @ rules (except for @namespace) are ignored.
- !important is ignored.
- Does not match the selector that includes pseudo elements.
- Supports the following pseudo classes. Does not match the selector that includes the other pseudo classes.
  - :root
  - :first-child
  - :last-child
  - :only-child
  - :first-of-type
  - :last-of-type
  - :only-of-type
  - :nth-child()
  - :nth-last-child()
  - :nth-of-type()
  - :nth-last-of-type()
  - :empty
  - :not()
- With the [attr=val] attribute selector, only the conformity of the character string is evaluated. For example, the x="1.0" attribute doesn't match the [x="1"] selector. The following selectors are supported.
  - E[foo]
  - E[foo="bar"]
  - E[foo~="bar"]
  - E[foo^="bar"]
  - E[foo$="bar"]
  - E[foo*="bar"]
  - E[foo|="bar"]
- Functions and Variables cannot be used.
- When there is a grammatical violation, no more issues are evaluated after that.

To reference an external CSS, use <?xml-stylesheet?> and specify as follows:

<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="foobar.css"?>
<svg xmlns="http://www.w3.org/2000/svg">
...

xlink is abolished in SVG 2.0. Therefore, it is accepted as href instead of xlink:href.
fill, stroke, and stop-color are not supported for complex settings using multiple values. Only the first value is effective.
Supports stop-opacity only for the PDF output.
Strokes with complicated gradation (greater than or equal to 3 colors, repeat, reflect) are not supported.
Transparency is not supported in PDF1.3.