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    <p>I solved it thanks to the good folks at <a href="http://groups.google.com/group/networkx-discuss" rel="nofollow noreferrer">http://groups.google.com/group/networkx-discuss</a> ( <a href="http://groups.google.com/group/networkx-discuss/browse_thread/thread/aac227e1fb2a4719" rel="nofollow noreferrer">http://groups.google.com/group/networkx-discuss/browse_thread/thread/aac227e1fb2a4719</a> ):</p> <p>The following (partial) code works in Tkinter, allows the creation of a matplotlib window (non blocking, by the way) containing a networkx graph, and executes the procedure visitNode() if you click on a given node.</p> <pre><code>import networkx as nx import matplotlib.pyplot as plt import pylab class AnnoteFinder: # thanks to http://www.scipy.org/Cookbook/Matplotlib/Interactive_Plotting """ callback for matplotlib to visit a node (display an annotation) when points are clicked on. The point which is closest to the click and within xtol and ytol is identified. """ def __init__(self, xdata, ydata, annotes, axis=None, xtol=None, ytol=None): self.data = zip(xdata, ydata, annotes) if xtol is None: xtol = ((max(xdata) - min(xdata))/float(len(xdata)))/2 if ytol is None: ytol = ((max(ydata) - min(ydata))/float(len(ydata)))/2 self.xtol = xtol self.ytol = ytol if axis is None: axis = pylab.gca() self.axis= axis self.drawnAnnotations = {} self.links = [] def __call__(self, event): if event.inaxes: clickX = event.xdata clickY = event.ydata if self.axis is None or self.axis==event.inaxes: annotes = [] for x,y,a in self.data: if clickX-self.xtol &lt; x &lt; clickX+self.xtol and clickY-self.ytol &lt; y &lt; clickY+self.ytol : dx,dy=x-clickX,y-clickY annotes.append((dx*dx+dy*dy,x,y, a) ) if annotes: annotes.sort() # to select the nearest node distance, x, y, annote = annotes[0] self.visitNode(annote) def visitNode(self, annote): # Visit the selected node # do something with the annote value print "visitNode", annote fig = plt.figure() ax = fig.add_subplot(111) ax.set_title('select nodes to navigate there') G=nx.MultiDiGraph() # directed graph G = nx.wheel_graph(5) pos=nx.spring_layout(G) # the layout gives us the nodes position x,y,annotes=[],[],[] for key in pos: d=pos[key] annotes.append(key) x.append(d[0]) y.append(d[1]) nx.draw(G,pos,font_size=8) af = AnnoteFinder(x,y, annotes) fig.canvas.mpl_connect('button_press_event', af) plt.show() </code></pre>
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    1. POmake a click-able graph by networkx
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    1. USMarc Van Daele
    1. USalessandro
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    1. COI'm sorry but what is the point of pasting an incomplete/not working code with undefined names and broken identation? Will it help people besides yourself?
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      1. USminerals
 

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