Python networkx.freeze() Examples

The following are 19 code examples of networkx.freeze(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module networkx , or try the search function .
Example #1
Source File: function.py    From aws-kube-codesuite with Apache License 2.0 6 votes vote down vote up 
def is_frozen(G):
    """Return True if graph is frozen.

    Parameters
    ----------
    G : graph
      A NetworkX graph

    See Also
    --------
    freeze
    """
    try:
        return G.frozen
    except AttributeError:
        return False
Example #2
Source File: function.py    From qgisSpaceSyntaxToolkit with GNU General Public License v3.0 6 votes vote down vote up 
def is_frozen(G):
    """Return True if graph is frozen.

    Parameters
    ----------
    G : graph
      A NetworkX graph

    See Also
    --------
    freeze
    """
    try:
        return G.frozen
    except AttributeError:
        return False
Example #3
Source File: function.py    From Carnets with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def is_frozen(G):
    """Returns True if graph is frozen.

    Parameters
    ----------
    G : graph
      A NetworkX graph

    See Also
    --------
    freeze
    """
    try:
        return G.frozen
    except AttributeError:
        return False
Example #4
Source File: graphviews.py    From Carnets with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def subgraph_view(G, filter_node=no_filter, filter_edge=no_filter):
    newG = nx.freeze(G.__class__())
    newG._NODE_OK = filter_node
    newG._EDGE_OK = filter_edge

    # create view by assigning attributes from G
    newG._graph = G
    newG.graph = G.graph

    newG._node = FilterAtlas(G._node, filter_node)
    if G.is_multigraph():
        Adj = FilterMultiAdjacency

        def reverse_edge(u, v, k): return filter_edge(v, u, k)
    else:
        Adj = FilterAdjacency

        def reverse_edge(u, v): return filter_edge(v, u)
    if G.is_directed():
        newG._succ = Adj(G._succ, filter_node, filter_edge)
        newG._pred = Adj(G._pred, filter_node, reverse_edge)
        newG._adj = newG._succ
    else:
        newG._adj = Adj(G._adj, filter_node, filter_edge)
    return newG
Example #5
Source File: graphviews.py    From Carnets with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def generic_graph_view(G, create_using=None):
    if create_using is None:
        newG = G.__class__()
    else:
        newG = nx.empty_graph(0, create_using)
    if G.is_multigraph() != newG.is_multigraph():
        raise NetworkXError("Multigraph for G must agree with create_using")
    newG = nx.freeze(newG)

    # create view by assigning attributes from G
    newG._graph = G
    newG.graph = G.graph

    newG._node = G._node
    if newG.is_directed():
        if G.is_directed():
            newG._succ = G._succ
            newG._pred = G._pred
            newG._adj = G._succ
        else:
            newG._succ = G._adj
            newG._pred = G._adj
            newG._adj = G._adj
    elif G.is_directed():
        if G.is_multigraph():
            newG._adj = UnionMultiAdjacency(G._succ, G._pred)
        else:
            newG._adj = UnionAdjacency(G._succ, G._pred)
    else:
        newG._adj = G._adj
    return newG
Example #6
Source File: test_function.py    From aws-kube-codesuite with Apache License 2.0 5 votes vote down vote up 
def test_is_frozen(self):
        assert_equal(nx.is_frozen(self.G), False)
        G = nx.freeze(self.G)
        assert_equal(G.frozen, nx.is_frozen(self.G))
        assert_equal(G.frozen, True)
Example #7
Source File: test_function.py    From aws-kube-codesuite with Apache License 2.0 5 votes vote down vote up 
def test_freeze(self):
        G = nx.freeze(self.G)
        assert_equal(G.frozen, True)
        assert_raises(nx.NetworkXError, G.add_node, 1)
        assert_raises(nx.NetworkXError, G.add_nodes_from, [1])
        assert_raises(nx.NetworkXError, G.remove_node, 1)
        assert_raises(nx.NetworkXError, G.remove_nodes_from, [1])
        assert_raises(nx.NetworkXError, G.add_edge, 1, 2)
        assert_raises(nx.NetworkXError, G.add_edges_from, [(1, 2)])
        assert_raises(nx.NetworkXError, G.remove_edge, 1, 2)
        assert_raises(nx.NetworkXError, G.remove_edges_from, [(1, 2)])
        assert_raises(nx.NetworkXError, G.clear)
Example #8
Source File: test_gpickle.py    From aws-kube-codesuite with Apache License 2.0 5 votes vote down vote up 
def setUp(self):
        G=nx.Graph(name="test")
        e=[('a','b'),('b','c'),('c','d'),('d','e'),('e','f'),('a','f')]
        G.add_edges_from(e,width=10)
        G.add_node('g',color='green')
        G.graph['number']=1
        DG=nx.DiGraph(G)
        MG=nx.MultiGraph(G)
        MG.add_edge('a', 'a')
        MDG=nx.MultiDiGraph(G)
        MDG.add_edge('a', 'a')
        fG = G.copy()
        fDG = DG.copy()
        fMG = MG.copy()
        fMDG = MDG.copy()
        nx.freeze(fG)
        nx.freeze(fDG)
        nx.freeze(fMG)
        nx.freeze(fMDG)
        self.G=G
        self.DG=DG
        self.MG=MG
        self.MDG=MDG
        self.fG=fG
        self.fDG=fDG
        self.fMG=fMG
        self.fMDG=fMDG
Example #9
Source File: test_function.py    From Carnets with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def test_is_frozen(self):
        assert_equal(nx.is_frozen(self.G), False)
        G = nx.freeze(self.G)
        assert_equal(G.frozen, nx.is_frozen(self.G))
        assert_equal(G.frozen, True)
Example #10
Source File: graph.py    From taskflow with Apache License 2.0 5 votes vote down vote up 
def freeze(self):
        """Freezes the graph so that no more mutations can occur."""
        if not self.frozen:
            nx.freeze(self)
        return self
Example #11
Source File: test_gpickle.py    From Carnets with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def setUp(self):
        G = nx.Graph(name="test")
        e = [('a', 'b'), ('b', 'c'), ('c', 'd'), ('d', 'e'), ('e', 'f'), ('a', 'f')]
        G.add_edges_from(e, width=10)
        G.add_node('g', color='green')
        G.graph['number'] = 1
        DG = nx.DiGraph(G)
        MG = nx.MultiGraph(G)
        MG.add_edge('a', 'a')
        MDG = nx.MultiDiGraph(G)
        MDG.add_edge('a', 'a')
        fG = G.copy()
        fDG = DG.copy()
        fMG = MG.copy()
        fMDG = MDG.copy()
        nx.freeze(fG)
        nx.freeze(fDG)
        nx.freeze(fMG)
        nx.freeze(fMDG)
        self.G = G
        self.DG = DG
        self.MG = MG
        self.MDG = MDG
        self.fG = fG
        self.fDG = fDG
        self.fMG = fMG
        self.fMDG = fMDG
Example #12
Source File: graph_wrapper.py    From queueing-tool with MIT License 5 votes vote down vote up 
def freeze(self):
        nx.freeze(self)
Example #13
Source File: test_function.py    From qgisSpaceSyntaxToolkit with GNU General Public License v3.0 5 votes vote down vote up 
def test_is_frozen(self):
        assert_equal(nx.is_frozen(self.G), False)
        G=nx.freeze(self.G)
        assert_equal(G.frozen, nx.is_frozen(self.G))
        assert_equal(G.frozen,True)
Example #14
Source File: test_function.py    From qgisSpaceSyntaxToolkit with GNU General Public License v3.0 5 votes vote down vote up 
def test_freeze(self):
        G=nx.freeze(self.G)
        assert_equal(G.frozen,True)
        assert_raises(nx.NetworkXError, G.add_node, 1)
        assert_raises(nx.NetworkXError, G.add_nodes_from, [1])
        assert_raises(nx.NetworkXError, G.remove_node, 1)
        assert_raises(nx.NetworkXError, G.remove_nodes_from, [1])
        assert_raises(nx.NetworkXError, G.add_edge, 1,2)
        assert_raises(nx.NetworkXError, G.add_edges_from, [(1,2)])
        assert_raises(nx.NetworkXError, G.remove_edge, 1,2)
        assert_raises(nx.NetworkXError, G.remove_edges_from, [(1,2)])
        assert_raises(nx.NetworkXError, G.clear)
Example #15
Source File: test_gpickle.py    From qgisSpaceSyntaxToolkit with GNU General Public License v3.0 5 votes vote down vote up 
def setUp(self):
        G=nx.Graph(name="test")
        e=[('a','b'),('b','c'),('c','d'),('d','e'),('e','f'),('a','f')]
        G.add_edges_from(e,width=10)
        G.add_node('g',color='green')
        G.graph['number']=1
        DG=nx.DiGraph(G)
        MG=nx.MultiGraph(G)
        MG.add_edge('a', 'a')
        MDG=nx.MultiDiGraph(G)
        MDG.add_edge('a', 'a')
        fG = G.copy()
        fDG = DG.copy()
        fMG = MG.copy()
        fMDG = MDG.copy()
        nx.freeze(fG)
        nx.freeze(fDG)
        nx.freeze(fMG)
        nx.freeze(fMDG)
        self.G=G
        self.DG=DG
        self.MG=MG
        self.MDG=MDG
        self.fG=fG
        self.fDG=fDG
        self.fMG=fMG
        self.fMDG=fMDG
Example #16
Source File: graph.py    From taskflow with Apache License 2.0 5 votes vote down vote up 
def freeze(self):
        """Freezes the graph so that no more mutations can occur."""
        if not self.frozen:
            nx.freeze(self)
        return self
Example #17
Source File: function.py    From Carnets with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
def freeze(G):
    """Modify graph to prevent further change by adding or removing
    nodes or edges.

    Node and edge data can still be modified.

    Parameters
    ----------
    G : graph
      A NetworkX graph

    Examples
    --------
    >>> G = nx.path_graph(4)
    >>> G = nx.freeze(G)
    >>> try:
    ...    G.add_edge(4, 5)
    ... except nx.NetworkXError as e:
    ...    print(str(e))
    Frozen graph can't be modified

    Notes
    -----
    To "unfreeze" a graph you must make a copy by creating a new graph object:

    >>> graph = nx.path_graph(4)
    >>> frozen_graph = nx.freeze(graph)
    >>> unfrozen_graph = nx.Graph(frozen_graph)
    >>> nx.is_frozen(unfrozen_graph)
    False

    See Also
    --------
    is_frozen
    """
    G.add_node = frozen
    G.add_nodes_from = frozen
    G.remove_node = frozen
    G.remove_nodes_from = frozen
    G.add_edge = frozen
    G.add_edges_from = frozen
    G.add_weighted_edges_from = frozen
    G.remove_edge = frozen
    G.remove_edges_from = frozen
    G.clear = frozen
    G.frozen = True
    return G
Example #18
Source File: function.py    From aws-kube-codesuite with Apache License 2.0 4 votes vote down vote up 
def freeze(G):
    """Modify graph to prevent further change by adding or removing
    nodes or edges.

    Node and edge data can still be modified.

    Parameters
    ----------
    G : graph
      A NetworkX graph

    Examples
    --------
    >>> G = nx.path_graph(4)
    >>> G = nx.freeze(G)
    >>> try:
    ...    G.add_edge(4, 5)
    ... except nx.NetworkXError as e:
    ...    print(str(e))
    Frozen graph can't be modified

    Notes
    -----
    To "unfreeze" a graph you must make a copy by creating a new graph object:

    >>> graph = nx.path_graph(4)
    >>> frozen_graph = nx.freeze(graph)
    >>> unfrozen_graph = nx.Graph(frozen_graph)
    >>> nx.is_frozen(unfrozen_graph)
    False

    See Also
    --------
    is_frozen
    """
    G.add_node = frozen
    G.add_nodes_from = frozen
    G.remove_node = frozen
    G.remove_nodes_from = frozen
    G.add_edge = frozen
    G.add_edges_from = frozen
    G.remove_edge = frozen
    G.remove_edges_from = frozen
    G.clear = frozen
    G.frozen = True
    return G
Example #19
Source File: function.py    From qgisSpaceSyntaxToolkit with GNU General Public License v3.0 4 votes vote down vote up 
def freeze(G):
    """Modify graph to prevent further change by adding or removing
    nodes or edges.

    Node and edge data can still be modified.

    Parameters
    ----------
    G : graph
      A NetworkX graph

    Examples
    --------
    >>> G=nx.Graph()
    >>> G.add_path([0,1,2,3])
    >>> G=nx.freeze(G)
    >>> try:
    ...    G.add_edge(4,5)
    ... except nx.NetworkXError as e:
    ...    print(str(e))
    Frozen graph can't be modified

    Notes
    -----
    To "unfreeze" a graph you must make a copy by creating a new graph object:

    >>> graph = nx.path_graph(4)
    >>> frozen_graph = nx.freeze(graph)
    >>> unfrozen_graph = nx.Graph(frozen_graph)
    >>> nx.is_frozen(unfrozen_graph)
    False

    See Also
    --------
    is_frozen
    """
    G.add_node=frozen
    G.add_nodes_from=frozen
    G.remove_node=frozen
    G.remove_nodes_from=frozen
    G.add_edge=frozen
    G.add_edges_from=frozen
    G.remove_edge=frozen
    G.remove_edges_from=frozen
    G.clear=frozen
    G.frozen=True
    return G