def set_color(self, color=Color.LIGHT_GREY):
self._color = color
pynode_core.add_event(
pynode_core.Event(
pynode_core.js_edge_set_color,
[self._internal_id, color.hex_string()]), self)
return self
def add_edge(self, *args, **kwds):
if "edge" in kwds: e = kwds["edge"]
elif len(args) > 0 and isinstance(args[0], Edge): e = args[0]
else:
arg_source = kwds["source"] if "source" in kwds else args[0]
arg_target = kwds["target"] if "target" in kwds else args[1]
arg_weight = kwds["weight"] if "weight" in kwds else args[
2] if len(args) > 2 else None
arg_directed = kwds["directed"] if "directed" in kwds else args[
3] if len(args) > 3 else False
e = Edge(arg_source, arg_target, arg_weight, arg_directed)
if self.has_edge(e):
raise Exception("Instance of edge '" + str(e) +
"' already in graph.")
original_source = e._source
original_target = e._target
e._source = graph.node(e._source)
e._target = graph.node(e._target)
if e._source is None:
raise Exception("Node '" + str(original_source) +
"' doesn't exist.")
if e._target is None:
raise Exception("Node '" + str(original_target) +
"' doesn't exist.")
e._source._incident_edges.append(e)
e._target._incident_edges.append(e)
self._edges.append(e)
self._has_edge_cache[e] = True
pynode_core.add_event(
pynode_core.Event(pynode_core.js_add_edge, [e._data()]))
return e
def set_weight(self, weight=None):
self._weight = weight
pynode_core.add_event(
pynode_core.Event(
pynode_core.js_edge_set_weight,
[self._internal_id,
str(weight) if weight is not None else ""]), self)
return self
def set_text_size(self, size):
self._value_style._size = size
pynode_core.add_event(
pynode_core.Event(
pynode_core.js_node_set_value_style,
[self._internal_id,
self._value_style.data(self)]), self)
return self
def set_label(self, text, label_id=0):
self._labels[label_id] = text
pynode_core.add_event(
pynode_core.Event(pynode_core.js_node_set_label, [
self._internal_id,
str(text) if text is not None else "", label_id
]), self)
return self
def set_position(self, x, y=None, relative=False):
self._position = [x, y]
if x is None or y is None: self._position = None
self._is_pos_relative = relative
pynode_core.add_event(
pynode_core.Event(pynode_core.js_node_set_position,
[self._internal_id, x, y, relative]), self)
return self
def set_value(self, value):
self._value = value
pynode_core.add_event(
pynode_core.Event(
pynode_core.js_node_set_value,
[self._internal_id,
str(value) if value is not None else ""]), self)
return self
def set_text_color(self, color):
self._value_style._color = color
pynode_core.add_event(
pynode_core.Event(
pynode_core.js_node_set_value_style,
[self._internal_id,
self._value_style.data(self)]), self)
return self
def add_node(self, *args, **kwds):
if "node" in kwds: n = kwds["node"]
elif len(args) > 0 and isinstance(args[0], Node): n = args[0]
else: n = Node(*args, **kwds)
if n._id in self._nodes: raise Exception("Duplicate node '" + str(n._id) + "'")
self._nodes[n._id] = n
pynode_core.add_event(pynode_core.Event(pynode_core.js_add_node, [n._data()]))
pause(25)
return n
def remove_all(self, elements):
new_elements = []
pynode_core.enable_events(False)
for x in elements:
if isinstance(x, Node): new_elements.append((0, self.remove_node(x)._data()))
elif isinstance(x, Edge): new_elements.append((1, self.remove_edge(x)._data()))
else: new_elements.append((0, self.remove_node(self.node(x))._data()))
pynode_core.enable_events(True)
pynode_core.add_event(pynode_core.Event(pynode_core.js_remove_all, [new_elements]))
pause(55)
def remove_node(self, node):
n = self.node(node)
pynode_core.enable_events(False)
for e in n.incident_edges():
self.remove_edge(e)
pynode_core.enable_events(True)
del self._nodes[n._id]
pynode_core.add_event(pynode_core.Event(pynode_core.js_remove_node, [n._internal_id]))
pause(25)
return n
def highlight(self, *args, **kwds):
arg_color = kwds["color"] if "color" in kwds else args[0] if len(
args) > 0 else None
arg_size = kwds["size"] if "size" in kwds else args[1] if len(
args) > 1 else self._size * 1.5
pynode_core.add_event(
pynode_core.Event(pynode_core.js_node_highlight, [
self._internal_id, arg_size,
arg_color.hex_string() if arg_color is not None else None
]), self)
def traverse(self, initial_node=None, color=Color.RED, keep_path=True):
if not graph.has_edge(self): return
start = graph.node(
initial_node) if initial_node is not None else self._source
if not graph.has_node(start): return
pynode_core.add_event(
pynode_core.Event(pynode_core.js_edge_traverse, [
self._internal_id, start._internal_id,
color.hex_string(), keep_path
]), self)
def highlight(self, *args, **kwds):
arg_color = kwds["color"] if "color" in kwds else args[0] if len(
args) > 0 else None
arg_width = kwds["width"] if "width" in kwds else args[1] if len(
args) > 1 else self._width * 2
pynode_core.add_event(
pynode_core.Event(pynode_core.js_edge_highlight, [
self._internal_id, arg_width,
arg_color.hex_string() if arg_color is not None else None
]), self)
def set_weight_style(self, size=None, color=None, outline=None):
self._weight_style = CustomStyle(
self._weight_style._size if size is None else size,
self._weight_style._color if color is None else color,
self._weight_style._outline if outline is None else outline)
pynode_core.add_event(
pynode_core.Event(
pynode_core.js_edge_set_weight_style,
[self._internal_id,
self._weight_style.data(self)]), self)
return self
def remove_edge(self, *args, **kwds):
remove_multiple = False
if "edge" in kwds: edge = kwds["edge"]
elif len(args) > 0 and isinstance(args[0], Edge): edge = args[0]
else:
arg_source = kwds["node1"] if "node1" in kwds else args[0]
arg_target = kwds["node2"] if "node2" in kwds else args[1]
arg_directed = kwds["directed"] if "directed" in kwds else args[2] if len(args) > 2 else False
remove_multiple = True
if remove_multiple:
edge_list = self.edges_between(arg_source, arg_target, arg_directed)
self.remove_all(edge_list)
return edge_list
else:
edge._source._incident_edges.remove(edge)
edge._target._incident_edges.remove(edge)
self._edges.remove(edge)
del self._has_edge_cache[edge]
pynode_core.add_event(pynode_core.Event(pynode_core.js_remove_edge, [edge._internal_id]))
return edge
def set_label_style(self, size=None, color=None, outline=None, label_id=None):
if label_id is None or (label_id != 0 and label_id != 1):
style1 = CustomStyle(self._label_styles[0]._size if size is None else size, self._label_styles[0]._color if color is None else color, self._label_styles[0]._outline if outline is None else outline)
style2 = CustomStyle(self._label_styles[1]._size if size is None else size, self._label_styles[1]._color if color is None else color, self._label_styles[1]._outline if outline is None else outline)
self._label_styles[0] = style1
self._label_styles[1] = style2
pynode_core.add_event(pynode_core.Event(pynode_core.js_node_set_label_style, [self._internal_id, self._label_styles[0].data(self), 0]), self)
pynode_core.add_event(pynode_core.Event(pynode_core.js_node_set_label_style, [self._internal_id, self._label_styles[1].data(self), 1]), self)
else:
style = CustomStyle(self._label_styles[label_id]._size if size is None else size,Color.WHITE if color is None else color, outline)
self._label_styles[label_id] = style
pynode_core.add_event(pynode_core.Event(pynode_core.js_node_set_label_style, [self._internal_id, self._label_styles[label_id].data(self), label_id]), self)
return self
def clear(self):
self._reset()
pynode_core.add_event(pynode_core.Event(pynode_core.js_clear, []))
def set_spread(self, spread=80):
self._spread = spread
pynode_core.add_event(
pynode_core.Event(pynode_core.js_set_spread, [spread]))
def pause(time):
pynode_core.add_event(pynode_core.EventPause(time))
def set_size(self, size):
self._size = size
pynode_core.add_event(
pynode_core.Event(pynode_core.js_node_set_size,
[self._internal_id, size]), self)
return self
def set_width(self, width=2):
self._width = width
pynode_core.add_event(
pynode_core.Event(pynode_core.js_edge_set_width,
[self._internal_id, width]), self)
return self
def set_directed(self, directed=True):
self._directed = directed
pynode_core.add_event(
pynode_core.Event(pynode_core.js_edge_set_directed,
[self._internal_id, self._directed]), self)
return self