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From Vincent Hardy <vha...@eng.sun.com>
Subject Re: SVG CAD editor?
Date Wed, 31 Jan 2001 00:31:38 GMT
Randy,

As you guessed, we are not working on SVG editors at this time, but it
is true that through scripting, the DOM API allows a lot of creative
interactive applications. 

Our plan for Batik is to first finish as much of the static rendering
support as possible (i.e., almost everything but some text features 
which will take longer to implement) and then move to dynamic behavior
(scripting being part of that). The current architecture actually has
a lot built in in preparation for that (e.g., event propagation is
already in place, and scripts can already be invoked in reaction to
UI events and modify the DOM in response. However, there is no 
visual updates at this time, i.e., DOM changes are not reflected
yet).

V.

Vincent.

Randy George wrote:
> 
> Hello,
> 
>         I know the Batik developers are swimming fast just to provide basic SVG
> viewing tools, but does this idea have any merit for the future?
> 
>                                         .
>                                         .
>                                         .
>         In addition the Apache Software Foundation recently announced the Batik
> project whose goal is to provide open source Java tools for manipulation and
> use of svg-xml documents. ( http://xml.apache.org/batik/ ) This development
> has some possible implications for the engineering design world dominated by
> large CAD vendors. These CAD vendors are attempting to add Internet
> capability to their PC era software systems, but what if some open source
> community integrates vector editing capability right into the browser?
> Vector editing based on SVG DOM level 2 in the browser changes SVG emphasis
> from portability to cross platform interactivity. An elementary drawing
> editor capability is intrinsic to the DOM APIs. Sub-elements consisting of
> lines, text, polylines, and polygons, as well as general paths, markers, and
> defs, may be deleted, added, moved, scaled, and copied. Class attributes on
> each element can be referenced by associated style sheets, CSS or XSL, to
> control visibility, line type, and color analogous to design layers. Because
> the SVG DOM provides interfaces for building elementary 2D editing
> capability, browsers can become drawing editors! Since the vast majority of
> engineering design work is still in 2D this capability would be adopted by
> the engineering design community wholesale.
> 
>         An incidental benefit of open source development would be the breeching of
> the Linux wall. There are currently no viable CAD design tools available for
> Linux workstations, which is a major roadblock to adoption of Linux in
> engineering offices. Incorporating SVG editing into the browser would make
> design functions cross platform in a big way. SVG documents could be viewed
> and edited on the entire platform spectrum from IBM big iron to palm
> devices, without complex intermediate and proprietary software frameworks.
> Transition to Internet era CAD design would leverage open source Linux and
> cross platform Java making real design collaboration over the Internet
> possible for the AEC community.
>                                         .
>                                         .
>                                         .
> 
> Thanks
> rkgeorge
> 
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