Graph editor¶

sage.graphs.graph_editor.
graph_editor
(graph=None, graph_name=None, replace_input=True, **layout_options)¶ Opens a graph editor in the Sage notebook.
INPUT:
graph
 aGraph
instance (default: graphs.CompleteGraph(2)); the graph to editgraph_name
 a string (default: None); the variable name to use for the updated instance; by default, this function attempts to determine the name automaticallyreplace_input
 a boolean (default: True); whether to replace the text in the input cell with the updated graph data when “Save” is clicked; if this is False, the data is still evaluated as if it had been entered in the cell
EXAMPLES:
sage: g = graphs.CompleteGraph(3) sage: graph_editor(g) # not tested sage: graph_editor(graphs.HouseGraph()) # not tested sage: graph_editor(graph_name='my_graph') # not tested sage: h = graphs.StarGraph(6) sage: graph_editor(h, replace_input=False) # not tested

sage.graphs.graph_editor.
graph_to_js
(g)¶ Returns a string representation of a
Graph
instance usable by thegraph_editor()
. The encoded information is the number of vertices, their 2D positions, and a list of edges.INPUT:
g
 aGraph
instance
OUTPUT:
 a string
EXAMPLES:
sage: from sage.graphs.graph_editor import graph_to_js sage: G = graphs.CompleteGraph(4) sage: graph_to_js(G) 'num_vertices=4;edges=[[0,1],[0,2],[0,3],[1,2],[1,3],[2,3]];pos=[[0.5,0.0],[0.0,0.5],[0.5,1.0],[1.0,0.5]];' sage: graph_to_js(graphs.StarGraph(2)) 'num_vertices=3;edges=[[0,1],[0,2]];pos=[[0.0,0.5],[0.0,0.0],[0.0,1.0]];'