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From Al Pacifico <pacif...@pobox.com>
Subject Re: Help with transcoding SVG to PNG Batik 1.9
Date Sun, 23 Jul 2017 15:06:40 GMT
@Peter Coppens:  Thanks, your suggestion did the trick.  Somehow, I'm
surprised by this, and I think this warrants fixing or mention in the
documentation.

Cheers.
-Al

On Sun, Jul 23, 2017 at 7:43 AM, Peter Coppens <pc.subscriptions@gmail.com>
wrote:

> Perhaps https://bz.apache.org/bugzilla/show_bug.cgi?id=44682 is the same ?
>
> Try adding
>
> <dependency>
>     <groupId>org.apache.xmlgraphics</groupId>
>     <artifactId>batik-codec</artifactId>
>     <version>1.9</version>
> </dependency>
>
> Hth
>
> Peter
>
>
> On 23 Jul 2017, at 16:27, Al Pacifico <pacifico@pobox.com> wrote:
>
> Complete newbie to Batik here, so bear with me.
>
> I am trying to transcode SVG's to PNG's using the following code:
>
> package com.example;
>
> import java.io.*;
> import java.nio.file.Paths;
> import org.apache.batik.transcoder.image.PNGTranscoder;
> import org.apache.batik.transcoder.SVGAbstractTranscoder;
> import org.apache.batik.transcoder.TranscoderInput;
> import org.apache.batik.transcoder.TranscoderOutput;
>
> public class Main {
>
>     public static void main(String [] args) throws Exception {
>
>         // read the input SVG document into TranscoderInput
>         String svgURI = Paths.get(args[0]).toUri().toString();
>         TranscoderInput input = new TranscoderInput(svgURI);
>         // define OutputStream to PNG Image and attach to TranscoderOutput
>         OutputStream ostream = new FileOutputStream("out.png");
>         TranscoderOutput output = new TranscoderOutput(ostream);
>         // create a JPEG transcoder
>         PNGTranscoder t = new PNGTranscoder();
>         // set the transcoding hints
>         t.addTranscodingHint(SVGAbstractTranscoder.KEY_HEIGHT, new Float(600));
>         t.addTranscodingHint(SVGAbstractTranscoder.KEY_WIDTH, new Float(600));
>         // convert and write output
>         t.transcode(input, output);
>         // flush and close the stream then exit
>         ostream.flush();
>         ostream.close();
>     }
> }
>
> Compiled using Maven, this code repeatedly fails (using a variety of
> SVG's) with the following exception.
>
> Exception in thread "main" org.apache.batik.transcoder.TranscoderException:
> null
> Enclosed Exception:
> Could not write PNG file because no WriteAdapter is availble
> at org.apache.batik.transcoder.image.ImageTranscoder.
> transcode(ImageTranscoder.java:132)
> at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(
> XMLAbstractTranscoder.java:142)
> at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(
> SVGAbstractTranscoder.java:156)
> at com.example.Main.main(Main.java:26)
>
> After numerous Google searches, my theory is that the Maven repositories
> are missing a dependency, but my brain says "blame yourself first," which
> is why I am asking here.
>
> Using the technique for listing dependencies outlined at
> https://grep.codeconsult.ch/2010/07/08/list-all-your-maven-dependencies/,
> I get the following list:
>     commons-io:commons-io:jar:1.3.1
>     commons-logging:commons-logging:jar:1.0.4
>     junit:junit:jar:3.8.1
>     org.apache.xmlgraphics:batik-anim:jar:1.9
>     org.apache.xmlgraphics:batik-awt-util:jar:1.9
>     org.apache.xmlgraphics:batik-bridge:jar:1.9
>     org.apache.xmlgraphics:batik-constants:jar:1.9
>     org.apache.xmlgraphics:batik-css:jar:1.9
>     org.apache.xmlgraphics:batik-dom:jar:1.9
>     org.apache.xmlgraphics:batik-ext:jar:1.9
>     org.apache.xmlgraphics:batik-gvt:jar:1.9
>     org.apache.xmlgraphics:batik-i18n:jar:1.9
>     org.apache.xmlgraphics:batik-parser:jar:1.9
>     org.apache.xmlgraphics:batik-script:jar:1.9
>     org.apache.xmlgraphics:batik-svg-dom:jar:1.9
>     org.apache.xmlgraphics:batik-svggen:jar:1.9
>     org.apache.xmlgraphics:batik-transcoder:jar:1.9
>     org.apache.xmlgraphics:batik-util:jar:1.9
>     org.apache.xmlgraphics:batik-xml:jar:1.9
>     org.apache.xmlgraphics:xmlgraphics-commons:jar:2.2
>     xalan:serializer:jar:2.7.2
>     xalan:xalan:jar:2.7.2
>     xml-apis:xml-apis-ext:jar:1.3.04
>     xml-apis:xml-apis:jar:1.3.04
>
> Does anyone see a problem with my code?
> -Al
> --
> Please forgive typo's, equally likely to have been typed on cell phone and
> to have been typed one-handed.
>
>
>


-- 
Please forgive typo's, equally likely to have been typed on cell phone and
to have been typed one-handed.

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