SpecFXGExport - Revision history

JazzyNico at 13:23, 18 January 2011

2011-01-18T13:23:30Z

JazzyNico at 07:27, 18 January 2011

2011-01-18T07:27:26Z

← Older revision		Revision as of 07:27, 18 January 2011
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	*manchester - Nested matrix doesn't work as expected.		*manchester - Nested matrix doesn't work as expected.
	*News_Papers - Partial (gradients limitations).		*News_Papers - Partial (gradients limitations).


			[[Category:Developer Documentation]]
			[[Category:Specification]]

JazzyNico: svg2fxg specs update

2010-12-23T18:56:30Z

svg2fxg specs update

Show changes

JazzyNico: svg2fxg specs update

2010-12-21T20:30:31Z

svg2fxg specs update

← Older revision		Revision as of 20:30, 21 December 2010
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	== TODO ==		== TODO ==
	More tests.		*More tests.
	Some improvements (workarounds for gradients limitations?).		*Some improvements (workarounds for gradients limitations?).
	Implement some of the FXG improvements to the XAML export.		*The elliptical arc issue has an easy workaround, but it would be great to implement an arc to curve convertor (see https://github.com/DmitryBaranovskiy/raphael/raw/master/raphael.js for ideas, and http://www.exslt.org/math/index.html for exslt math functions).
			*Implement some of the FXG improvements to the XAML export.

	== Discussion ==		== Discussion ==
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	* '''[Partial]''' Font weight (normal and bold only) -> values under 500 are considered normal, the others bold.		* '''[Partial]''' Font weight (normal and bold only) -> values under 500 are considered normal, the others bold.
	* '''[Partial]''' Whitespace handling, issues with xml:whitespace='preserve'.		* '''[Partial]''' Whitespace handling, issues with xml:whitespace='preserve'.
			* '''[Partial]''' Text frames (only works with rectangles, and some positioning issues).
	* '''[Not supported]''' Generic fonts.		* '''[Not supported]''' Generic fonts.
	* '''[Not supported]''' Embedded fonts (in defs).		* '''[Not supported]''' Embedded fonts (in defs).
	* '''[Not supported]''' Character rotation.		* '''[Not supported]''' Character rotation.
	* '''[Not supported]''' Character positioning (x and y).		* '''[Not supported]''' Character positioning (x and y).
			* '''[Not supported]''' Text span (from tspan or flowSpan) positioning.
	* '''[Not supported]''' Text-anchor.		* '''[Not supported]''' Text-anchor.
	* '''[Not supported]''' Text stroke.		* '''[Not supported]''' Text stroke.
	* '''[Not supported]''' flowRoot.

	=== Shapes ===		=== Shapes ===
	* '''[Not supported]''' Polygons.		* '''[Not supported]''' Polygons.
	* '''[Not supported]''' Polylines.		* '''[Not supported]''' Polylines.
	* '''[Not supported]''' Elliptical arc curve path commands (workaround: convert ellipse and circle to path first).		* '''[Not supported]''' Elliptical arc curve path commands (workaround: convert ellipse and circle to path first). Converting arcs to curves in XSLT 1.0 looks awfully complex (it requires some exslt math and strings functions -which needs some changes in the Windows build to include and link the exslt dll- and a path parser template).
	=== Images ===		=== Images ===
	* '''[Not supported]''' Embedded images (base64).		* '''[Not supported]''' Embedded images (base64).

JazzyNico at 16:05, 15 December 2010

2010-12-15T16:05:54Z

← Older revision		Revision as of 16:05, 15 December 2010
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	=== Gradients and color===		=== Gradients and color===
	* '''[Not supported]''' Gradient positioning, shaping and transformation. They are currently centered and restricted to the object bounding box.		* '''[Not supported]''' Gradient positioning, shaping and transformation. They are currently centered and restricted to the object bounding box.
	* '''[Not supported]''' CurrentColor value ~~not supported~~		* '''[Not supported]''' CurrentColor.
			* '''[Not supported]''' Fill colors with both an url and a rgb value.
	=== Stroke ===		=== Stroke ===
	* Mitterlimit doesn't give the same result.		* Mitterlimit doesn't give the same result.
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	* '''[Not supported]''' clipPathUnits="objectBoundingBox" and maskUnits="objectBoundingBox".		* '''[Not supported]''' clipPathUnits="objectBoundingBox" and maskUnits="objectBoundingBox".
	* '''[Not supported]''' clipping and masking with text (workaround: convert text to path).		* '''[Not supported]''' clipping and masking with text (workaround: convert text to path).

	=== Text ===		=== Text ===
	* '''[Partial]''' Text rotation (0, 90, 180 and 270 degrees only) -> not implemented.		* '''[Partial]''' Text rotation (0, 90, 180 and 270 degrees only) -> not implemented.
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	* '''[Not supported]''' em, ex and % units (FXG only knows pixel values)		* '''[Not supported]''' em, ex and % units (FXG only knows pixel values)
	* '''[Not supported]''' No RDF and metadata support.		* '''[Not supported]''' No RDF and metadata support.
			* '''[Not supported]''' DOCTYPE (crashes the XSLT conversion).

	== Detailed tests ==		== Detailed tests ==
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	*dragonfly - Ok		*dragonfly - Ok
	*gimp - elliptical arc curve commands not supported; almost ok after convertion (gradients limitations)		*gimp - elliptical arc curve commands not supported; almost ok after convertion (gradients limitations)
			*git-cola-icons - partial (use not supported and gradients limitations)
			*grapes - Patterns and polygons not supported
			*GusEinstein_Angel - Partial (gradients limitations)
			*inkscape - elliptical arc curve commands not supported; almost ok after convertion (gradients limitations)
			*lightning - DOCTYPE not supported, fill colors with both an url and a rgb value not supported
			*manchester - Nested matrix doesn't work as expected
			*News_Papers - Partial (gradients limitations)

JazzyNico: /* Clip and mask */

2010-12-15T15:13:13Z

Clip and mask

← Older revision		Revision as of 15:13, 15 December 2010
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	=== Clip and mask ===		=== Clip and mask ===
	* '''[Not supported]''' clipPathUnits="objectBoundingBox" and maskUnits="objectBoundingBox".		* '''[Not supported]''' clipPathUnits="objectBoundingBox" and maskUnits="objectBoundingBox".
	* '''[Not supported]''' clipping and masking with text.		* '''[Not supported]''' clipping and masking with text (workaround: convert text to path).

	=== Text ===		=== Text ===
	* '''[Partial]''' Text rotation (0, 90, 180 and 270 degrees only) -> not implemented.		* '''[Partial]''' Text rotation (0, 90, 180 and 270 degrees only) -> not implemented.

JazzyNico: /* Text */

2010-12-15T15:12:02Z

Text

← Older revision		Revision as of 15:12, 15 December 2010
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	* '''[Not supported]''' Text-anchor.		* '''[Not supported]''' Text-anchor.
	* '''[Not supported]''' Text stroke.		* '''[Not supported]''' Text stroke.
			* '''[Not supported]''' flowRoot.

	=== Shapes ===		=== Shapes ===
	* '''[Not supported]''' Polygons.		* '''[Not supported]''' Polygons.

JazzyNico: FXG export specifications

2010-12-15T15:10:37Z

FXG export specifications

New page

== Summary ==
The goal of this extension is to provide an FXG format export from the File>Save AS dialog. Since Adobe has abandoned SVG support in its Flash applications, Flash developer need a way to create their drawings with Inkscape.

== Release Note ==
Initial XSLT file done. Initial unit and global tests done.

== Design ==
This export extension uses the XSLT extension system (already used by XAML export).

== TODO ==
More tests.
Some improvements (workarounds for gradients limitations?).
Implement some of the FXG improvements to the XAML export.

== Discussion ==

== Known limitations ==
Some SVG features are not are partially supported by FXG. When possible, a workaround has been implemented in the export filter to render the missing features. Some elements that can't be created with Inkscape are not supported.

=== Root level and groups ===
* '''[Partial]''' Limited support for nested SVG elements (the first one is converted to Graphics and the others to Groups).
* '''[Not supported]''' Viewbox.
=== Defs ===
* '''[Partial]''' Limited support for switch (always pass).
* '''[Not supported]''' Use.
* '''[Not supported]''' Markers.
* '''[Not supported]''' Patterns.
* '''[Not supported]''' Symbols.
=== Transforms ===
* '''[Not supported]''' Skew.
* '''[Not supported]''' Multiple values rotation (only the first one is converted).
=== Filters ===
* '''[Partial]''' Support limited to blurs.
=== Gradients and color===
* '''[Not supported]''' Gradient positioning, shaping and transformation. They are currently centered and restricted to the object bounding box.
* '''[Not supported]''' CurrentColor value not supported
=== Stroke ===
* Mitterlimit doesn't give the same result.
* '''[Not supported]''' Dasharrays and dashoffset.
* '''[Not supported]''' Butt linecap.
=== Clip and mask ===
* '''[Not supported]''' clipPathUnits="objectBoundingBox" and maskUnits="objectBoundingBox".
* '''[Not supported]''' clipping and masking with text.
=== Text ===
* '''[Partial]''' Text rotation (0, 90, 180 and 270 degrees only) -> not implemented.
* '''[Partial]''' Font weight (normal and bold only) -> values under 500 are considered normal, the others bold.
* '''[Partial]''' Whitespace handling, issues with xml:whitespace='preserve'.
* '''[Not supported]''' Generic fonts.
* '''[Not supported]''' Embedded fonts (in defs).
* '''[Not supported]''' Character rotation.
* '''[Not supported]''' Character positioning (x and y).
* '''[Not supported]''' Text-anchor.
* '''[Not supported]''' Text stroke.
=== Shapes ===
* '''[Not supported]''' Polygons.
* '''[Not supported]''' Polylines.
* '''[Not supported]''' Elliptical arc curve path commands (workaround: convert ellipse and circle to path first).
=== Images ===
* '''[Not supported]''' Embedded images (base64).
* '''[Not supported]''' Preserve ratio.
=== Other ===
* '''[Partial]''' Limited support for layers blend mode.
* '''[Not supported]''' Object title and description.
* '''[Not supported]''' em, ex and % units (FXG only knows pixel values)
* '''[Not supported]''' No RDF and metadata support.

== Detailed tests ==
(from the official SVG1.1 test suite at http://www.w3.org/Graphics/SVG/WG/wiki/Test_Suite_Overview)
=== Colors ===
*color-prop-01-b - CurrentColor value not supported
*color-prop-03-t - Ok (except polygons, but unrelated to the color test)

=== coords ===
*coords-coord-01-t - Ok
*coords-coord-02-t - Ok
*coords-trans-01-b - Skew not supported.
*coords-trans-02-t - Ok.
*coords-trans-03-t - Skew not supported.
*coords-trans-04-t - Ok.
*coords-trans-05-t - Ok.
*coords-trans-06-t - Ok.
*coords-units-01-b - Gradients transformation and positionning not supported (Full convertion to FXG would require some math)
*coords-units-02-b - % positionning not supported
*coords-units-03-b - em, ex and % not implemented
*coords-viewattr-03-b - Viewbox not implemented

=== Filters ===
*filters-gauss-01-b - Blurs work, but not rendered exactly as with SVG (blur bounding box not supported)

=== Masking ===
*masking-mask-01-b - Ok (except font issue)
*masking-opacity-01-b - Ok
*masking-path-01-b - Ok
*masking-path-02-b - clipPathUnits="objectBoundingBox" and *maskUnits="objectBoundingBox" not supported
*masking-path-03-b - Viewbox not supported
*masking-path-04-b - Clip with text doesn't work (but no compile error)

=== Painting ===
*painting-fill-01-t - Ok
*painting-fill-02-t - CurrentColor value not supported
*painting-fill-03-t - Miter limit differs from SVG
*painting-fill-04-t - Ok
*painting-fill-05-t - Ok
*painting-render-01-b - Ok
*painting-stroke-01-t - Ok
*painting-stroke-02-t - Ok
*painting-stroke-03-t - Ok
*painting-stroke-04-t - Dash-array and dash-offset not supported
*painting-stroke-07-t - Miter limit differs from SVG

=== Path ===
*paths-data-01-t - Ok
*paths-data-02-t - Ok
*paths-data-04-t - Ok
*paths-data-05-t - Ok
*paths-data-06-t - Ok
*paths-data-07-t - Ok
*paths-data-08-t - Ok
*paths-data-09-t - Ok
*paths-data-10-t - Partialy fails (with Open, join=round and cap=butt)
*paths-data-12-t - Ok
*paths-data-13-t - Ok
*paths-data-14-t - Ok
*paths-data-15-t - Ok

=== Pserver ===
*pservers-grad-01-b - Ok (except gradient bbox)
*pservers-grad-02-b - Partialy fails (radial gradient not fully supported)
*pservers-grad-03-b - Patterns not supported
*pservers-grad-04-b - Partialy fails (gradients not fully supported). Gradients color stops ok.
*pservers-grad-05-b - Partialy fails (gradients not fully supported). Gradients color stops and opacity ok.
*pservers-grad-06-b - Fails (gradient positioning and tranformation are very different in FXG)
*pservers-grad-07-b - Ok (except gradient bbox)
*pservers-grad-08-b - Gradient on text not supported
*pservers-grad-09-b - Gradient units not supported
*pservers-grad-10-b - Ok (but gradient bbox not...)
*pservers-grad-11-b - Gradients not fully supported, gradient on text not supported
*pservers-grad-12-b - Gradient bbox not supported
*pservers-grad-13-b -> 15-b - Gradients not fully supported
*pservers-grad-16-b - Ok
*pservers-grad-17-b - Multiple values rotation not supported
*pservers-grad-18-b - inherit value not supported
*pservers-grad-19-b - inherit value not supported

=== Render ===
*render-elems-01-t - Ok
*render-elems-02-t - Ok
*render-elems-03-t - !ENTITY support not implemented
*render-elems-06-t (and following) - Glyphs (defs) support not implemented
*render-groups-03-t - Ok (except glyphs)

=== Shapes ===
*shapes-circle-01-t- Ok
*shapes-circle-02-t - Ok
*shapes-ellipse-01-t - Ok
*shapes-ellipse-02-t - Stroke still shown when H or W is 0
*shapes-intro-01-t - Stroke still shown when H or W is 0; Test position.
*shapes-line-01-t - Ok
*shapes-polygon-01-t - Not supported
*shapes-polyline-01-t - Not supported
*shapes-rect-01-t - Ok
*shapes-rect-02-t - Stroke still shown when H or W is 0

=== Struct ===
*struct-defs-01-t - Ok
*struct-frags-01-t - Ok
*struct-frags-02-t - Viewbox not supported
*struct-group-01-t - Ok
*struct-group-02-b - Multiple svg elements and viewbox not implemented
*struct-group-03-t - Use not implemented in Inkscape (but could be changed into Library element in FXG).
*struct-image-01-t - Ok
*struct-image-04-t - Image embedding not supported
*struct-image-06-t - PreserveRation not supported

=== Text ===
*text-align-01-b - Text-anchor not supported
*text-align-02-b - sub and super values reduce the font size
*text-align-03-b - Text-anchor and span element positioning not supported
*text-align-04-b - Text-anchor and span element positioning not supported
*text-align-05-b - Text-anchor not supported, and ugly hack to make writing-mode work as expected (textRotation attribute added manualy)
*text-align-06-b - Text-anchor not supported, and ugly hack to make
writing-mode work as expected (textRotation attribute added manualy)
*text-align-08-b - SVG fonts not supported
*text-deco-01-b - Ok (except text strokes, not supported)
*text-fonts-01-t - Generic fonts not supported
*text-fonts-02-t - Only supports Normal and Bold (values mapped)
*text-fonts-03-t - Fonts from defs not supported
*text-intro-01-t - Looks good (Chinese and Japanese not tested)
*text-intro-02-b - Text direction doesn't work as expected
*text-intro-03-b - Glyph orientation not implemented
*text-intro-04-t - Looks good (Chinese and Japanese not tested)
*text-intro-05-t - Text-anchor not supported
*text-path-01-b - Text on path not supported
*text-spacing-01-b - Letter and word spacing not supported
*text-text-01-b - textLength and LengthAdjust not supported
*text-text-03-b - Ok
*text-text-04-t to text-text-06-t - Text-anchor not supported; multiple x and y values not supported.
*text-text-07-t - Text rotation not supported
*text-text-08-b - Text stroke (and thus text stroke opacity) not supported
*text-tref-01-b - tref not supported
*text-tselect-01-b - span positioning not supported
*text-tspan-01-b - span positioning not supported
*text-ws-01-t - Ok
*text-ws-02-t - Almost working...

=== Other tests ===
(from the scour trunk: http://bazaar.launchpad.net/~scouring/scour/trunk/files/head%3A/fulltests/)
*acid - Ok
*appartment - Partial (gradients limitations and no flowRoot support)
*boom - Ok
*cgmail - elliptical arc curve commands not supported; almost ok after *convertion (gradients limitations)
*Degri_Energy_Saving_Lightbulb - elliptical arc curve commands not supported; almost ok after convertion (gradients limitations)
*dragonfly - Ok
*gimp - elliptical arc curve commands not supported; almost ok after convertion (gradients limitations)