No output generated, no error / reason / hint given

[rpietzsch]

Hello,

not sure if bug or user error (I suppose the later), maybe you can give me a hint how to proceed.

What I did:

• I cloned this repo (master branch)
• I tried
  • java -jar bin/ar2dtool.jar -i .schema.ttl -o schemaTax.png -t png -c bin/confTaxonomy.txt and
  • java -jar bin/ar2dtool.jar -i .schema.ttl -o schemaER.png -t png -c bin/confER.txt
• output:

  log4j:WARN No appenders could be found for logger (com.hp.hpl.jena.util.FileManager).
  log4j:WARN Please initialize the log4j system properly.
  log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
  ****PREFIX MAP****
  http://vocab.eccenca.com/eccmeta/:eccmeta
  [...]
  https://vocab.eccenca.com/semedi/:semedi
  ****END PREFIX MAP****
  

• result NO png generated
• dot available at default config location:

  $ /usr/local/bin/dot -V
  dot - graphviz version 2.36.0 (20140111.2315)
  

• .schema.ttl is same as at https://vocab.eccenca.com/semedi/

Thanks in advance. Rene

[idafensp]

Hi Rene,

thanks for the feedback. I will try to reproduce the error locally.

On the meanwhile, could you try to execute it with the "-d" option a the end, so as to get a more verbose log.

Best,

[rpietzsch]

Thanks for your reply, yes used -d.
But did not saw any error or helpful pointer to what to do next.
Let me collect the output for you...

[idafensp]

Hi Rene,

seems that you are missing the flags in your CLI call:

GENERATE_FLAGS: you can specify one or more of the flags below to define which files you want to generate:

-gv/GV: using -gv a DOT source file will be generated as FileToOutputFile.gv. Using -GV will also compile the DOT source code into an image with the format specified in OutputFileType.

-gml: using -gml a GraphML source file will be generated as FileToOutputFile.graphml.

Try adding them (GV for example for getting the png file) and let me know if it works. It is working for me locally, producing a 4.7mb figure.

Best,

[rpietzsch]

Thanks for pointing me to this, works like a charm!