About Vector Effects as seen in Chris Lilley talk, I think they could be included in a very clean way in Inkscape Fill and Stroke Editor.
________________________________ De : "J.B.C.Engelen@...1578..." <J.B.C.Engelen@...1578...> À : Inkscape-devel@lists.sourceforge.net Envoyé le : Mer 9 juin 2010, 11h 34min 39s Objet : Re: [Inkscape-devel] SVG Vector Effects in Inkscape
Vector effects and LPEs are incomparable, in my opinion.
-----Original Message----- From: Krzysztof Kosiński [mailto:tweenk.pl@...400...] Sent: Tuesday, June 08, 2010 17:02 To: Ted Gould Cc: Inkscape-devel@lists.sourceforge.net Subject: Re: [Inkscape-devel] SVG Vector Effects in Inkscape
2010/6/7 Ted Gould <ted@...11...>:
It seems like the LPEs would be enough for that eh? I mean
you don't
need final XML syntax (well you do, but don't need to test that as much) as much as having the same set of parameters in both to make sure those parameters can create all the effects that
you're envisioning.
Vector effects are more flexible than LPEs. Vector effects can be used for things like shapes with multiple strokes, non-destructive boolean operations, offsets, etc. The main difference is that the output of vector effects is arbitrary, while the output of LPEs is always a single path or a group of paths.
This of course triggers me to respond. LPEs are more flexible than Vector effects. LPEs can be used for all kinds of non-destructive path alchemy, like boolean operations, spiro, path bending, subcurve stitching, even generating gears out of a number of path nodes. The main difference is that the output of LPEs is arbitrary, while the output of Vector effects is always a simple path or a group of simple paths nearly identical to the input path.
I think objectively, LPEs are more _flexible_, because Vector effects only provides a handful of path chemistry, while LPEs can do pretty much anything that is programmable in C++. However, because Vector effects works with SVG objects instead of just path data, it can do many things LPEs can't do. We discussed this a bit at LGM2010. A possible solution for the non-animatability of LPEs, is to add succesful LPEs as Vector effects. (and which svg viewers will implement those new things? LPEs are generally very math intensive...)
For me the ideal solution would be to:
- Implement vector effects with fallback using svg:switch,
- Migrate LPEs to vector effects.
I do not see how any (well, most anyway) of the current LPEs can be migrated to vector effects. Nor do I see how any (well, most anyway) of the vector effects can be migrated to LPE.
Vector effects and LPEs are incomparable, in my opinion.
Ciao, Johan
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