import ipycytoscape

import json
with open("geneData.json") as fi:
    json_file = json.load(fi)
with open("geneStyle.json") as fi:
    s = json.load(fi)

cytoscapeobj = ipycytoscape.CytoscapeWidget()
cytoscapeobj.graph.add_graph_from_json(json_file)
cytoscapeobj.set_style(s)

cytoscapeobj.set_layout(name = 'cola',
                      nodeSpacing = 5,
                      edgeLengthVal = 45,
                      animate = True,
                      randomize = False,
                      maxSimulationTime = 1500)

cytoscapeobj

# edits graph directly 

cytoscapeobj.set_layout(nodeSpacing=100)
cytoscapeobj.get_layout()

# connects a slider to the nodeSpacing of the graph

import ipywidgets as widgets

node_range = widgets.IntSlider()
output = widgets.Output()
display(node_range, output)

def on_value_change(change):
    with output:
        cytoscapeobj.set_layout(nodeSpacing = node_range.value)
        cytoscapeobj.get_layout()

node_range.observe(on_value_change)