[
https://issues.apache.org/jira/browse/BATIK-1053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14093847#comment-14093847
]
Glenn Adams commented on BATIK-1053:
------------------------------------
To be more precise, I am adding support to FOP's use of Batik in order to
support complex scripts in SVG. However, this will use an FOP specific code
path (via FOP's subclassing of Batik's GVTFont, GVTGlyphVector, GlyphLayout,
etc), so will not address the more general problem of support for complex
scripts in Batik (when not used with FOP integration).
For reference, this work is being done under [1].
[1] https://issues.apache.org/jira/browse/FOP-2391
> Text rendering of some Persian characters has issues when converting SVG to
> PNG
> -------------------------------------------------------------------------------
>
> Key: BATIK-1053
> URL: https://issues.apache.org/jira/browse/BATIK-1053
> Project: Batik
> Issue Type: Bug
> Components: SVG Rasterizer
> Affects Versions: 1.7
> Environment: OS: Ubuntu Linux 12.04 (3.2.0-44-generic #69-Ubuntu SMP
> Thu May 16 17:35:01 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux)
> Java: java version "1.7.0_21"
> OpenJDK Runtime Environment (IcedTea 2.3.9) (7u21-2.3.9-0ubuntu0.12.04.1)
> Reporter: Mostafa Mahdieh
> Attachments: BatikPersianTest.zip, sample.png
>
>
> I am using Activiti Explorer 5.12.1, which uses batik transcoder 1.7 as a
> library. When exporting bpmn models to png using Activiti Explorer, the
> output has issues on characters "ی", "ک", "پ" and "گ". Note that theses
> characters are part of the Persian character set of utf-8, and other
> characters which are in the common set of Arabic and Persian character sets,
> don't seem to have any problems.
> I have attached a sample of one of my tests. The text in the box should read
> "ما کب گپ جیب جوب پا"
> which is incorrectly shown as
> "ما کب گپ جیب جوب پا"
> I traced the problem in Activiti Explorer code to this small code snippet:
> =======================
> InputStream svgStream = new
> ByteArrayInputStream(modelForm.getFirstValue("svg_xml").getBytes("utf-8"));
> TranscoderInput input = new TranscoderInput(svgStream);
>
> PNGTranscoder transcoder = new PNGTranscoder();
> // Setup output
> ByteArrayOutputStream outStream = new ByteArrayOutputStream();
> TranscoderOutput output = new TranscoderOutput(outStream);
>
> // Do the transformation
> transcoder.transcode(input, output);
> final byte[] result = outStream.toByteArray();
> =======================
> It seems that the issues are coming from the PNGTranscoder not being able to
> render persian text correctly. PNGTranscoder is part of Apache Batik
> (org.apache.batik.transcoder.image.PNGTranscoder).
> I have also created a very small eclipse project which does the same thing,
> independent of any Activiti Explorer code, which helps a lot to debug the
> problem. The project is attached.
> More details:
> OS: Ubuntu Linux 12.04 (3.2.0-44-generic #69-Ubuntu SMP Thu May 16 17:35:01
> UTC 2013 x86_64 x86_64 x86_64 GNU/Linux)
> Java: java version "1.7.0_21"
> OpenJDK Runtime Environment (IcedTea 2.3.9) (7u21-2.3.9-0ubuntu0.12.04.1)
> Batik version used by Activiti Explorer (found in the MANIFEST.MF of the jar
> file included): 1.7+r608262
> Regards
--
This message was sent by Atlassian JIRA
(v6.2#6252)
---------------------------------------------------------------------
To unsubscribe, e-mail: batik-dev-unsubscr...@xmlgraphics.apache.org
For additional commands, e-mail: batik-dev-h...@xmlgraphics.apache.org
