Re: Path transcoding problems with Batik

[DeWeese Thomas <th...@gmail.com>]

Hi Werner, 
    The result is much better if you add shape-rendering="geometricPrecision" either to the path or the containing group.  It may be that by adjusting the miter limit you could also mitigate/eliminate the issue (the jags look to me like miters gone wild).

    Thomas

On Oct 30, 2012, at 8:23 AM, Werner Guttmann <we...@indoqa.com> wrote:

> Hi,
> 
> we are trying to transcode an SVG into a PNG using Apache Batik, and we are having problems with the quality of some SVG artefacts (mainly pathes, using a pattern).
> 
> I have attached a small set of files that should be sufficient to assess the problem, including ...
> 
> 1) A very minimal SVG file (with one pattern definition and a path that actually uses that pattern).
> 2) A screen shot of a PNG after transcoding, that shows (for the path jags in the upper right area.
> 
> Our observations are:
> 
> a) When we view the SVG file in e.g. Inkscape, everything looks just fine (i.e. the path is smooth and there are no jags).
> b) Once we use Batik to transcode this image to a PNG, we are starting to see those jags appear (as with this very path).
> 
> One more thing:
> 
> - We are not in control of e.g. the pattern definition, as that's controlled externally. And the very same SVG is being used on a web site where the rendering of SVG artefacts is done through flash and does not cause this problem.
> 
> Any idea what could be causing this, and what we could do to improve the situation for us ?
> 
> Kind regards
> Werner Guttmann
> <Path 7.png><highlight-simple-a1.svg>
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Re: Path transcoding problems with Batik

[Werner Guttmann <we...@indoqa.com>]

Hi Thomas,

adding share-rendering to the surrounding layers did the trick. Thanks 
for your help.

Regards
Werner

On 01.11.2012 23:38, DeWeese Thomas wrote:
> Hi Werner,
>      The result is much better if you add shape-rendering="geometricPrecision" either to the path or the containing group.  It may be that by adjusting the miter limit you could also mitigate/eliminate the issue (the jags look to me like miters gone wild).
>
>      Thomas
>
> On Oct 30, 2012, at 8:23 AM, Werner Guttmann <we...@indoqa.com> wrote:
>
>> Hi,
>>
>> we are trying to transcode an SVG into a PNG using Apache Batik, and we are having problems with the quality of some SVG artefacts (mainly pathes, using a pattern).
>>
>> I have attached a small set of files that should be sufficient to assess the problem, including ...
>>
>> 1) A very minimal SVG file (with one pattern definition and a path that actually uses that pattern).
>> 2) A screen shot of a PNG after transcoding, that shows (for the path jags in the upper right area.
>>
>> Our observations are:
>>
>> a) When we view the SVG file in e.g. Inkscape, everything looks just fine (i.e. the path is smooth and there are no jags).
>> b) Once we use Batik to transcode this image to a PNG, we are starting to see those jags appear (as with this very path).
>>
>> One more thing:
>>
>> - We are not in control of e.g. the pattern definition, as that's controlled externally. And the very same SVG is being used on a web site where the rendering of SVG artefacts is done through flash and does not cause this problem.
>>
>> Any idea what could be causing this, and what we could do to improve the situation for us ?
>>
>> Kind regards
>> Werner Guttmann
>> <Path 7.png><highlight-simple-a1.svg>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
>> For additional commands, e-mail: batik-users-help@xmlgraphics.apache.org
>
>
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> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: batik-users-help@xmlgraphics.apache.org
>

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