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python/graph: add full_matrix graph function
This makes an ASCII/ANSI art picture like distance_matrix(), but from a full matrix, not a list of adjacencies as in the distance_matrix case. This will be used to visualise up-to-dateness vectors. Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Douglas Bagnall
committed by
Andrew Bartlett
Andrew Bartlett
parent
6813e1b3c2
commit
02bca5590c
@ -658,3 +658,165 @@ def distance_matrix(vertices, edges,
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(c_disconn, missing, c_reset))
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return '\n'.join(lines)
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def pad_char(char, digits, padding=' '):
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if digits == 1:
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padding = ''
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return ' ' * (digits - 1) + char + padding
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def transpose_dict_matrix(m):
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m2 = {}
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for k1, row in m.items():
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for k2, dist in row.items():
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m2.setdefault(k2, {})[k1] = dist
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return m2
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def full_matrix(rows,
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utf8=False,
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colour=None,
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shorten_names=False,
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generate_key=False,
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grouping_function=None,
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row_comments=None,
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colour_scale=None,
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digits=1,
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ylabel='source',
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xlabel='destination',
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transpose=True):
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lines = []
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write = lines.append
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if transpose:
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rows = transpose_dict_matrix(rows)
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use_padding = digits > 1
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charset = CHARSETS['utf8' if utf8 else 'ascii']
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vertical = pad_char(charset['vertical'], digits)
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horizontal = charset['horizontal'] * (digits + use_padding)
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corner = pad_char(charset['corner'], digits,
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charset['horizontal'])
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diagonal = pad_char(charset['diagonal'], digits)
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missing = pad_char(charset['missing'], digits)
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toobig = pad_char('>', digits)
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right_arrow = charset['right_arrow']
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empty = pad_char(' ', digits)
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colours = COLOUR_SETS[colour]
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colour_cycle = cycle(colours.get('alternate rows', ('',)))
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vertices = list(rows.keys())
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if grouping_function is not None:
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# we sort and colour according to the grouping function
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# which can be used to e.g. alternate colours by site.
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vertices.sort(key=grouping_function)
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colour_list = []
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for k, v in groupby(vertices, key=grouping_function):
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c = colour_cycle.next()
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colour_list.extend(c for x in v)
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else:
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colour_list = [colour_cycle.next() for v in vertices]
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if shorten_names:
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vmap, replacements = shorten_vertex_names(vertices, '+',
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aggressive=True)
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rows2 = {}
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for vert, r in rows.items():
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rows2[vmap[vert]] = dict((vmap[k], v) for k, v in r.items())
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rows = rows2
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vertices = list(rows.keys())
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vlen = max(6, len(xlabel), max(len(v) for v in vertices))
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# first, the key for the columns
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c_header = colours.get('header', '')
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c_disconn = colours.get('disconnected', '')
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c_conn = colours.get('connected', '')
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c_reset = colours.get('reset', '')
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if colour_scale is None:
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colour_scale = len(rows)
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colour_transitive = get_transitive_colourer(colours, colour_scale)
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vspace = ' ' * vlen
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verticals = ''
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write("%s %s %s%s%s" % (vspace,
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empty * (len(rows) + 1),
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c_header,
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xlabel,
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c_reset))
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for i, v in enumerate(vertices):
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j = len(rows) - i
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c = colour_list[i]
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if j == 1:
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start = '%s%s%s%s' % (vspace[:-len(ylabel)],
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c_header,
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ylabel,
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c_reset)
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else:
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start = vspace
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write('%s %s%s%s%s%s %s%s' % (start,
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verticals,
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c_reset,
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c,
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corner,
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horizontal * j,
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v,
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c_reset
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))
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verticals += '%s%s' % (c, vertical)
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end_cell = '%s%s' % (' ' * use_padding, c_reset)
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overflow = False
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for i, v in enumerate(vertices):
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links = rows[v]
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c = colour_list[i]
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row = []
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for v2 in vertices:
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if v2 not in links:
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row.append('%s%s%s' % (c_disconn, missing, c_reset))
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elif v == v2:
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row.append('%s%s%s%s' % (c_reset, c, diagonal, c_reset))
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else:
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link = links[v2]
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if link >= 10 ** digits:
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ct = colour_transitive(link)
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row.append('%s%s%s' % (ct, toobig, c_reset))
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overflow = True
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continue
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if link == 0:
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ct = c_conn
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else:
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ct = colour_transitive(link)
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row.append('%s%*s%s' % (ct, digits, link, end_cell))
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if row_comments is not None and row_comments[i]:
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row.append('%s %s %s' % (c_reset, right_arrow, row_comments[i]))
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write('%s%*s%s %s%s' % (c, vlen, v, c_reset,
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''.join(row), c_reset))
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if overflow or shorten_names:
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write('')
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if overflow:
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write("'%s%s%s' means greater than %d " %
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(colour_transitive(10 ** digits),
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toobig,
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c_reset,
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10 ** digits - 1))
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if shorten_names:
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example_c = colour_cycle.next()
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for substitute, original in reversed(replacements):
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write("'%s%s%s' stands for '%s%s%s'" % (example_c,
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substitute,
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c_reset,
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example_c,
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original,
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c_reset))
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return '\n'.join(lines)
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