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rdfs2dot

A commandline tool for drawing RDFS Class diagrams in Graphviz DOT format

You can draw the graph of an RDFS file directly:

rdf2dot my_rdfs_file.rdf | dot -Tpng | display

Functions:

Attributes:

EDGECOLOR module-attribute 

EDGECOLOR = 'blue'

ISACOLOR module-attribute 

ISACOLOR = 'black'

NODECOLOR module-attribute 

NODECOLOR = 'black'

XSDTERMS module-attribute 

XSDTERMS = [(XSD[x]) for x in ('anyURI', 'base64Binary', 'boolean', 'byte', 'date', 'dateTime', 'decimal', 'double', 'duration', 'float', 'gDay', 'gMonth', 'gMonthDay', 'gYear', 'gYearMonth', 'hexBinary', 'ID', 'IDREF', 'IDREFS', 'int', 'integer', 'language', 'long', 'Name', 'NCName', 'negativeInteger', 'NMTOKEN', 'NMTOKENS', 'nonNegativeInteger', 'nonPositiveInteger', 'normalizedString', 'positiveInteger', 'QName', 'short', 'string', 'time', 'token', 'unsignedByte', 'unsignedInt', 'unsignedLong', 'unsignedShort')]

main 

main()
Source code in rdflib/tools/rdfs2dot.py 
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def main():
    rdflib.extras.cmdlineutils.main(rdfs2dot, _help)

rdfs2dot 

rdfs2dot(g, stream, opts={})

Convert the RDFS schema in a graph writes the dot output to the stream

Source code in rdflib/tools/rdfs2dot.py 
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def rdfs2dot(g, stream, opts={}):
    """
    Convert the RDFS schema in a graph
    writes the dot output to the stream
    """

    fields = collections.defaultdict(set)
    nodes: Dict[Identifier, str] = {}

    def node(nd):
        if nd not in nodes:
            nodes[nd] = "node%d" % len(nodes)
        return nodes[nd]

    def label(xx, grf):
        lbl = grf.value(xx, RDFS.label)
        if lbl is None:
            try:
                lbl = grf.namespace_manager.compute_qname(xx)[2]
            except Exception:
                pass  # bnodes and some weird URIs cannot be split
        return lbl

    stream.write('digraph { \n node [ fontname="DejaVu Sans" ] ; \n')

    for x in g.subjects(RDF.type, RDFS.Class):
        n = node(x)

    for x, y in g.subject_objects(RDFS.subClassOf):
        x = node(x)
        y = node(y)
        stream.write("\t%s -> %s [ color=%s ] ;\n" % (y, x, ISACOLOR))

    for x in g.subjects(RDF.type, RDF.Property):
        for a, b in itertools.product(
            g.objects(x, RDFS.domain), g.objects(x, RDFS.range)
        ):
            if b in XSDTERMS or b == RDFS.Literal:
                l_ = label(b, g)
                if b == RDFS.Literal:
                    l_ = "literal"
                fields[node(a)].add((label(x, g), l_))
            else:
                #            if a in nodes and b in nodes:
                stream.write(
                    '\t%s -> %s [ color=%s, label="%s" ];\n'
                    % (node(a), node(b), EDGECOLOR, label(x, g))
                )

    for u, n in nodes.items():
        stream.write("# %s %s\n" % (u, n))
        f = [
            "<tr><td align='left'>%s</td><td>%s</td></tr>" % x
            for x in sorted(fields[n])
        ]
        opstr = (
            "%s [ shape=none, color=%s label=< <table color='#666666'"
            + " cellborder='0' cellspacing='0' border='1'><tr>"
            + "<td colspan='2' bgcolor='grey'><B>%s</B></td>"
            + "</tr>%s</table> > ] \n"
        )
        stream.write(opstr % (n, NODECOLOR, label(u, g), "".join(f)))

    stream.write("}\n")