ontogram 0.1.1
Ontogram
An OWL ontology diagram generator.
Currently it supports owl:class, rdfs:subClassOf, owl:equivalentClass, datatype properties and domain and range relationships. I am planning to add support for owl:subClassOf restrictions soon.
Example output
The output of examples/tern-org.ttl.
Installation
Install via PyPI for Python 3.
pip3 install ontogram
Usage
Command line application
$ ontogram --help
Usage: ontogram [OPTIONS] ONTOLOGY_FILEPATH
Ontogram CLI is a tool to generate a diagram from an OWL ontology file.
Options:
--format ['turtle', 'xml', 'nt', 'n3']
RDF serialization of input file. Default is
turtle.
--help Show this message and exit.
Use Ontogram's CLI to generate diagrams of an OWL ontology.
ontogram ontology.ttl
Output will be 3 files, ontology.ttl.txt, ontology.ttl.png, ontology.ttl.svg.
Use the --format option to specify the RDF serialization of the ontology if it is not Turtle.
Python library
Ontogram is a Python library and can be easily integrated with any existing Python application.
from ontogram import Ontogram
# First parameter accepts a file path to the OWL ontology.
# Second parameter tells Ontogram what RDF format the OWL ontology is in.
ontogram = Ontogram('ontology.ttl', format='turtle')
# Generate a PNG diagram from the OWl ontology and write to disk as 'ontology.ttl.txt'.
ontogram.png_file('ontology.ttl.txt')
# Same as above, but as an SVG diagram.
ontogram.svg_file('ontology.ttl.svg')
See the examples directory for example outputs.
For personal and professional use. You cannot resell or redistribute these repositories in their original state.
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