Hi, Anne Can you be more specific about how you'd like to visualize the files? It sounds like you've already got a tool that will build an html file which is the classic way to make visualizations with galaxy. Now you'd like to make it more interactive? Do you already have javascript or python code that will be used to manipulate or draw the data? The visualization registry will help you link a user's data to your visualization code but will not create the code that does the rendering or interaction. Aside from that, if you know the structure and filenames of your composite's extra files directory, currently you can access those files using: api/histories/{history_id}/contents/{content_id}/display?filename=<some file> The meme type will be guessed based on the extension generally and more complex paths can also be specified using the filename parameter. So, for example, if I have a FastQC Html composite file with an extra files path of: database/files/000/dataset_83_files And within that directory, fastqc makes an additional subdirectory: sample1_fastqc/Icons sample1_fastqc/Images sample1_fastqc/summary.txt I can fetch the summary.txt file (with the 'text/plain' memetype) using: api/histories/{history_id}/contents/{content_id}/display?filename=sample1_fastqc/summary.txt Let me know if that wasn't the info you were after or I misunderstood the question. Carl On Fri, Aug 14, 2015 at 7:50 AM, Anne Claire Fouilloux < a.c.fouilloux@geo.uio.no> wrote:

Hi,

I created a new composite datatype (class derived from Html class) myDatatype and I sucessfully use it in a new created tool.

When I click on "View data" it shows my Html file with a list of binary files and everything is Ok.

Now I would like to Visualize my data. I created a new directory in

galaxy-dist/config/plugins/visualizations/ following instructions given at

https://wiki.galaxyproject.org/VisualizationsRegistry and read

https://wiki.galaxyproject.org/VisualizationsRegistry/Configuration and

https://wiki.galaxyproject.org/DataProviders

However, I still don't understand what I should do to be able to access files from my composite datatype to be able to visualize myDatatype (I mean I need to visualize the files containing in the directory listed by the html file).

Is it possible? Where can I find some information on how to do it?

Thanks,

Anne.

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