class TestBokehGraphPlot(TestBokehPlot):
def setUp(self):
super(TestBokehGraphPlot, self).setUp()
N = 8
self.nodes = circular_layout(np.arange(N, dtype=np.int32))
self.source = np.arange(N, dtype=np.int32)
self.target = np.zeros(N, dtype=np.int32)
self.weights = np.random.rand(N)
self.graph = Graph(((self.source, self.target), ))
self.node_info = Dataset(['Output'] + ['Input'] * (N - 1),
vdims=['Label'])
self.node_info2 = Dataset(self.weights, vdims='Weight')
self.graph2 = Graph(((self.source, self.target), self.node_info))
self.graph3 = Graph(((self.source, self.target), self.node_info2))
self.graph4 = Graph(((self.source, self.target, self.weights), ),
vdims='Weight')
def test_plot_simple_graph(self):
plot = bokeh_renderer.get_plot(self.graph)
node_source = plot.handles['scatter_1_source']
edge_source = plot.handles['multi_line_1_source']
layout_source = plot.handles['layout_source']
self.assertEqual(node_source.data['index'], self.source)
self.assertEqual(edge_source.data['start'], self.source)
self.assertEqual(edge_source.data['end'], self.target)
layout = {str(int(z)): (x, y) for x, y, z in self.graph.nodes.array()}
self.assertEqual(layout_source.graph_layout, layout)
def test_plot_graph_with_paths(self):
graph = self.graph.clone(
(self.graph.data, self.graph.nodes, self.graph.edgepaths))
plot = bokeh_renderer.get_plot(graph)
node_source = plot.handles['scatter_1_source']
edge_source = plot.handles['multi_line_1_source']
layout_source = plot.handles['layout_source']
self.assertEqual(node_source.data['index'], self.source)
self.assertEqual(edge_source.data['start'], self.source)
self.assertEqual(edge_source.data['end'], self.target)
edges = graph.edgepaths.split()
self.assertEqual(edge_source.data['xs'],
[path.dimension_values(0) for path in edges])
self.assertEqual(edge_source.data['ys'],
[path.dimension_values(1) for path in edges])
layout = {str(int(z)): (x, y) for x, y, z in self.graph.nodes.array()}
self.assertEqual(layout_source.graph_layout, layout)
def test_graph_inspection_policy_nodes(self):
plot = bokeh_renderer.get_plot(self.graph)
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, NodesAndLinkedEdges)
self.assertEqual(hover.tooltips, [('index', '@{index_hover}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_edges(self):
plot = bokeh_renderer.get_plot(
self.graph.opts(plot=dict(inspection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, EdgesAndLinkedNodes)
self.assertEqual(hover.tooltips, [('start', '@{start_values}'),
('end', '@{end_values}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_edges_non_default_names(self):
graph = self.graph.redim(start='source', end='target')
plot = bokeh_renderer.get_plot(
graph.opts(plot=dict(inspection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, EdgesAndLinkedNodes)
self.assertEqual(hover.tooltips, [('source', '@{source}'),
('target', '@{target}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_none(self):
plot = bokeh_renderer.get_plot(
self.graph.opts(plot=dict(inspection_policy=None)))
renderer = plot.handles['glyph_renderer']
self.assertIs(renderer.inspection_policy, None)
def test_graph_selection_policy_nodes(self):
plot = bokeh_renderer.get_plot(self.graph)
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.selection_policy, NodesAndLinkedEdges)
self.assertIn(renderer, hover.renderers)
def test_graph_selection_policy_edges(self):
plot = bokeh_renderer.get_plot(
self.graph.opts(plot=dict(selection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.selection_policy, EdgesAndLinkedNodes)
self.assertIn(renderer, hover.renderers)
def test_graph_selection_policy_none(self):
plot = bokeh_renderer.get_plot(
self.graph.opts(plot=dict(selection_policy=None)))
renderer = plot.handles['glyph_renderer']
self.assertIs(renderer.selection_policy, None)
def test_graph_nodes_categorical_colormapped(self):
g = self.graph2.opts(plot=dict(color_index='Label'),
style=dict(cmap='Set1'))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['color_mapper']
node_source = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertIsInstance(cmapper, CategoricalColorMapper)
self.assertEqual(cmapper.factors, ['Output', 'Input'])
self.assertEqual(node_source.data['Label'], self.node_info['Label'])
self.assertEqual(glyph.fill_color, {
'field': 'Label',
'transform': cmapper
})
def test_graph_nodes_numerically_colormapped(self):
g = self.graph3.opts(plot=dict(color_index='Weight'),
style=dict(cmap='viridis'))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['color_mapper']
node_source = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertIsInstance(cmapper, LinearColorMapper)
self.assertEqual(cmapper.low, self.weights.min())
self.assertEqual(cmapper.high, self.weights.max())
self.assertEqual(node_source.data['Weight'], self.node_info2['Weight'])
self.assertEqual(glyph.fill_color, {
'field': 'Weight',
'transform': cmapper
})
def test_graph_edges_categorical_colormapped(self):
raise SkipTest(
'Temporarily disabled until array interface is simplified.')
g = self.graph3.opts(plot=dict(edge_color_index='start'),
style=dict(edge_cmap=['#FFFFFF', '#000000']))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['edge_colormapper']
edge_source = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertIsInstance(cmapper, CategoricalColorMapper)
factors = ['0', '1', '2', '3', '4', '5', '6', '7']
self.assertEqual(cmapper.factors, factors)
self.assertEqual(edge_source.data['start_str'], factors)
self.assertEqual(glyph.line_color, {
'field': 'start_str',
'transform': cmapper
})
def test_graph_edges_numerically_colormapped(self):
g = self.graph4.opts(plot=dict(edge_color_index='Weight'),
style=dict(edge_cmap=['#FFFFFF', '#000000']))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['edge_colormapper']
edge_source = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertIsInstance(cmapper, LinearColorMapper)
self.assertEqual(cmapper.low, self.weights.min())
self.assertEqual(cmapper.high, self.weights.max())
self.assertEqual(edge_source.data['Weight'], self.node_info2['Weight'])
self.assertEqual(glyph.line_color, {
'field': 'Weight',
'transform': cmapper
})
class BokehGraphPlotTests(ComparisonTestCase):
def setUp(self):
if not bokeh_renderer:
raise SkipTest("Bokeh required to test plot instantiation")
elif bokeh_version < str('0.12.9'):
raise SkipTest("Bokeh >= 0.12.9 required to test graphs")
self.previous_backend = Store.current_backend
Store.current_backend = 'bokeh'
self.default_comm = bokeh_renderer.comms['default']
N = 8
self.nodes = circular_layout(np.arange(N))
self.source = np.arange(N)
self.target = np.zeros(N)
self.graph = Graph(((self.source, self.target),))
self.node_info = Dataset(['Output']+['Input']*(N-1), vdims=['Label'])
self.graph2 = Graph(((self.source, self.target), self.node_info))
def tearDown(self):
Store.current_backend = self.previous_backend
bokeh_renderer.comms['default'] = self.default_comm
def test_plot_simple_graph(self):
plot = bokeh_renderer.get_plot(self.graph)
node_source = plot.handles['scatter_1_source']
edge_source = plot.handles['multi_line_1_source']
layout_source = plot.handles['layout_source']
self.assertEqual(node_source.data['index'], self.source)
self.assertEqual(edge_source.data['start'], self.source)
self.assertEqual(edge_source.data['end'], self.target)
layout = {z: (x, y) for x, y, z in self.graph.nodes.array()}
self.assertEqual(layout_source.graph_layout, layout)
def test_plot_graph_with_paths(self):
graph = self.graph.clone((self.graph.data, self.graph.nodes, self.graph.edgepaths))
plot = bokeh_renderer.get_plot(graph)
node_source = plot.handles['scatter_1_source']
edge_source = plot.handles['multi_line_1_source']
layout_source = plot.handles['layout_source']
self.assertEqual(node_source.data['index'], self.source)
self.assertEqual(edge_source.data['start'], self.source)
self.assertEqual(edge_source.data['end'], self.target)
edges = graph.edgepaths.split()
self.assertEqual(edge_source.data['xs'], [path.dimension_values(0) for path in edges])
self.assertEqual(edge_source.data['ys'], [path.dimension_values(1) for path in edges])
layout = {z: (x, y) for x, y, z in self.graph.nodes.array()}
self.assertEqual(layout_source.graph_layout, layout)
def test_graph_inspection_policy_nodes(self):
plot = bokeh_renderer.get_plot(self.graph)
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, NodesAndLinkedEdges)
self.assertEqual(hover.tooltips, [('index', '@{index_hover}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_edges(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(inspection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, EdgesAndLinkedNodes)
self.assertEqual(hover.tooltips, [('start', '@{start}'), ('end', '@{end}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_edges_non_default_names(self):
graph = self.graph.redim(start='source', end='target')
plot = bokeh_renderer.get_plot(graph.opts(plot=dict(inspection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, EdgesAndLinkedNodes)
self.assertEqual(hover.tooltips, [('source', '@{start}'), ('target', '@{end}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_none(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(inspection_policy=None)))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIs(renderer.inspection_policy, None)
def test_graph_selection_policy_nodes(self):
plot = bokeh_renderer.get_plot(self.graph)
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.selection_policy, NodesAndLinkedEdges)
self.assertIn(renderer, hover.renderers)
def test_graph_selection_policy_edges(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(selection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.selection_policy, EdgesAndLinkedNodes)
self.assertIn(renderer, hover.renderers)
def test_graph_selection_policy_none(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(selection_policy=None)))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIs(renderer.selection_policy, None)
def test_graph_nodes_colormapped(self):
g = self.graph2.opts(plot=dict(color_index='Label'), style=dict(cmap='Set1'))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['color_mapper']
node_source = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertIsInstance(cmapper, CategoricalColorMapper)
self.assertEqual(cmapper.factors, ['Input', 'Output'])
self.assertEqual(node_source.data['Label'], self.node_info['Label'])
self.assertEqual(glyph.fill_color, {'field': 'Label', 'transform': cmapper})
class TestBokehGraphPlot(TestBokehPlot):
def setUp(self):
super(TestBokehGraphPlot, self).setUp()
N = 8
self.nodes = circular_layout(np.arange(N, dtype=np.int32))
self.source = np.arange(N, dtype=np.int32)
self.target = np.zeros(N, dtype=np.int32)
self.weights = np.random.rand(N)
self.graph = Graph(((self.source, self.target),))
self.node_info = Dataset(['Output']+['Input']*(N-1), vdims=['Label'])
self.node_info2 = Dataset(self.weights, vdims='Weight')
self.graph2 = Graph(((self.source, self.target), self.node_info))
self.graph3 = Graph(((self.source, self.target), self.node_info2))
self.graph4 = Graph(((self.source, self.target, self.weights),), vdims='Weight')
def test_plot_simple_graph(self):
plot = bokeh_renderer.get_plot(self.graph)
node_source = plot.handles['scatter_1_source']
edge_source = plot.handles['multi_line_1_source']
layout_source = plot.handles['layout_source']
self.assertEqual(node_source.data['index'], self.source)
self.assertEqual(edge_source.data['start'], self.source)
self.assertEqual(edge_source.data['end'], self.target)
layout = {str(int(z)): (x, y) for x, y, z in self.graph.nodes.array()}
self.assertEqual(layout_source.graph_layout, layout)
def test_plot_graph_with_paths(self):
graph = self.graph.clone((self.graph.data, self.graph.nodes, self.graph.edgepaths))
plot = bokeh_renderer.get_plot(graph)
node_source = plot.handles['scatter_1_source']
edge_source = plot.handles['multi_line_1_source']
layout_source = plot.handles['layout_source']
self.assertEqual(node_source.data['index'], self.source)
self.assertEqual(edge_source.data['start'], self.source)
self.assertEqual(edge_source.data['end'], self.target)
edges = graph.edgepaths.split()
self.assertEqual(edge_source.data['xs'], [path.dimension_values(0) for path in edges])
self.assertEqual(edge_source.data['ys'], [path.dimension_values(1) for path in edges])
layout = {str(int(z)): (x, y) for x, y, z in self.graph.nodes.array()}
self.assertEqual(layout_source.graph_layout, layout)
def test_graph_inspection_policy_nodes(self):
plot = bokeh_renderer.get_plot(self.graph)
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, NodesAndLinkedEdges)
self.assertEqual(hover.tooltips, [('index', '@{index_hover}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_edges(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(inspection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, EdgesAndLinkedNodes)
self.assertEqual(hover.tooltips, [('start', '@{start_values}'), ('end', '@{end_values}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_edges_non_default_names(self):
graph = self.graph.redim(start='source', end='target')
plot = bokeh_renderer.get_plot(graph.opts(plot=dict(inspection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, EdgesAndLinkedNodes)
self.assertEqual(hover.tooltips, [('source', '@{source}'), ('target', '@{target}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_none(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(inspection_policy=None)))
renderer = plot.handles['glyph_renderer']
self.assertIs(renderer.inspection_policy, None)
def test_graph_selection_policy_nodes(self):
plot = bokeh_renderer.get_plot(self.graph)
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.selection_policy, NodesAndLinkedEdges)
self.assertIn(renderer, hover.renderers)
def test_graph_selection_policy_edges(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(selection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.selection_policy, EdgesAndLinkedNodes)
self.assertIn(renderer, hover.renderers)
def test_graph_selection_policy_none(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(selection_policy=None)))
renderer = plot.handles['glyph_renderer']
self.assertIs(renderer.selection_policy, None)
def test_graph_nodes_categorical_colormapped(self):
g = self.graph2.opts(plot=dict(color_index='Label'), style=dict(cmap='Set1'))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['color_mapper']
node_source = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertIsInstance(cmapper, CategoricalColorMapper)
self.assertEqual(cmapper.factors, ['Output', 'Input'])
self.assertEqual(node_source.data['Label'], self.node_info['Label'])
self.assertEqual(glyph.fill_color, {'field': 'Label', 'transform': cmapper})
def test_graph_nodes_numerically_colormapped(self):
g = self.graph3.opts(plot=dict(color_index='Weight'), style=dict(cmap='viridis'))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['color_mapper']
node_source = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertIsInstance(cmapper, LinearColorMapper)
self.assertEqual(cmapper.low, self.weights.min())
self.assertEqual(cmapper.high, self.weights.max())
self.assertEqual(node_source.data['Weight'], self.node_info2['Weight'])
self.assertEqual(glyph.fill_color, {'field': 'Weight', 'transform': cmapper})
def test_graph_edges_categorical_colormapped(self):
g = self.graph3.opts(plot=dict(edge_color_index='start'),
style=dict(edge_cmap=['#FFFFFF', '#000000']))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['edge_colormapper']
edge_source = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertIsInstance(cmapper, CategoricalColorMapper)
factors = ['0', '1', '2', '3', '4', '5', '6', '7']
self.assertEqual(cmapper.factors, factors)
self.assertEqual(edge_source.data['start_str__'], factors)
self.assertEqual(glyph.line_color, {'field': 'start_str__', 'transform': cmapper})
def test_graph_edges_numerically_colormapped(self):
g = self.graph4.opts(plot=dict(edge_color_index='Weight'),
style=dict(edge_cmap=['#FFFFFF', '#000000']))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['edge_colormapper']
edge_source = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertIsInstance(cmapper, LinearColorMapper)
self.assertEqual(cmapper.low, self.weights.min())
self.assertEqual(cmapper.high, self.weights.max())
self.assertEqual(edge_source.data['Weight'], self.node_info2['Weight'])
self.assertEqual(glyph.line_color, {'field': 'Weight', 'transform': cmapper})
###########################
# Styling mapping #
###########################
def test_graph_op_node_color(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 'red'), (0, 1, 1, 'green'), (1, 1, 2, 'blue')],
vdims='color')
graph = Graph((edges, nodes)).options(node_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertEqual(glyph.fill_color, {'field': 'node_color'})
self.assertEqual(glyph.line_color, 'black')
self.assertEqual(cds.data['node_color'], np.array(['red', 'green', 'blue']))
def test_graph_op_node_color_linear(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 0.5), (0, 1, 1, 1.5), (1, 1, 2, 2.5)],
vdims='color')
graph = Graph((edges, nodes)).options(node_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
cmapper = plot.handles['node_color_color_mapper']
self.assertEqual(glyph.fill_color, {'field': 'node_color', 'transform': cmapper})
self.assertEqual(glyph.line_color, 'black')
self.assertEqual(cds.data['node_color'], np.array([0.5, 1.5, 2.5]))
def test_graph_op_node_color_categorical(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 'A'), (0, 1, 1, 'B'), (1, 1, 2, 'C')],
vdims='color')
graph = Graph((edges, nodes)).options(node_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
cmapper = plot.handles['node_color_color_mapper']
self.assertEqual(glyph.fill_color, {'field': 'node_color', 'transform': cmapper})
self.assertEqual(glyph.line_color, 'black')
self.assertEqual(cds.data['node_color'], np.array(['A', 'B', 'C']))
def test_graph_op_node_size(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 2), (0, 1, 1, 4), (1, 1, 2, 6)],
vdims='size')
graph = Graph((edges, nodes)).options(node_size='size')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertEqual(glyph.size, {'field': 'node_size'})
self.assertEqual(cds.data['node_size'], np.array([2, 4, 6]))
def test_graph_op_node_alpha(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 0.2), (0, 1, 1, 0.6), (1, 1, 2, 1)], vdims='alpha')
graph = Graph((edges, nodes)).options(node_alpha='alpha')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertEqual(glyph.fill_alpha, {'field': 'node_alpha'})
self.assertEqual(glyph.line_alpha, {'field': 'node_alpha'})
self.assertEqual(cds.data['node_alpha'], np.array([0.2, 0.6, 1]))
def test_graph_op_node_line_width(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 2), (0, 1, 1, 4), (1, 1, 2, 6)], vdims='line_width')
graph = Graph((edges, nodes)).options(node_line_width='line_width')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertEqual(glyph.line_width, {'field': 'node_line_width'})
self.assertEqual(cds.data['node_line_width'], np.array([2, 4, 6]))
def test_graph_op_edge_color(self):
edges = [(0, 1, 'red'), (0, 2, 'green'), (1, 3, 'blue')]
graph = Graph(edges, vdims='color').options(edge_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertEqual(glyph.line_color, {'field': 'edge_color'})
self.assertEqual(cds.data['edge_color'], np.array(['red', 'green', 'blue']))
def test_graph_op_edge_color_linear(self):
edges = [(0, 1, 2), (0, 2, 0.5), (1, 3, 3)]
graph = Graph(edges, vdims='color').options(edge_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
cmapper = plot.handles['edge_color_color_mapper']
self.assertEqual(glyph.line_color, {'field': 'edge_color', 'transform': cmapper})
self.assertEqual(cds.data['edge_color'], np.array([2, 0.5, 3]))
def test_graph_op_edge_color_categorical(self):
edges = [(0, 1, 'C'), (0, 2, 'B'), (1, 3, 'A')]
graph = Graph(edges, vdims='color').options(edge_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
cmapper = plot.handles['edge_color_color_mapper']
self.assertEqual(glyph.line_color, {'field': 'edge_color', 'transform': cmapper})
self.assertEqual(cds.data['edge_color'], np.array(['C', 'B', 'A']))
def test_graph_op_edge_alpha(self):
edges = [(0, 1, 0.1), (0, 2, 0.5), (1, 3, 0.3)]
graph = Graph(edges, vdims='alpha').options(edge_alpha='alpha')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertEqual(glyph.line_alpha, {'field': 'edge_alpha'})
self.assertEqual(cds.data['edge_alpha'], np.array([0.1, 0.5, 0.3]))
def test_graph_op_edge_line_width(self):
edges = [(0, 1, 2), (0, 2, 10), (1, 3, 6)]
graph = Graph(edges, vdims='line_width').options(edge_line_width='line_width')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertEqual(glyph.line_width, {'field': 'edge_line_width'})
self.assertEqual(cds.data['edge_line_width'], np.array([2, 10, 6]))
class TestBokehGraphPlot(TestBokehPlot):
def setUp(self):
super(TestBokehGraphPlot, self).setUp()
N = 8
self.nodes = circular_layout(np.arange(N, dtype=np.int32))
self.source = np.arange(N, dtype=np.int32)
self.target = np.zeros(N, dtype=np.int32)
self.weights = np.random.rand(N)
self.graph = Graph(((self.source, self.target),))
self.node_info = Dataset(['Output']+['Input']*(N-1), vdims=['Label'])
self.node_info2 = Dataset(self.weights, vdims='Weight')
self.graph2 = Graph(((self.source, self.target), self.node_info))
self.graph3 = Graph(((self.source, self.target), self.node_info2))
self.graph4 = Graph(((self.source, self.target, self.weights),), vdims='Weight')
def test_plot_simple_graph(self):
plot = bokeh_renderer.get_plot(self.graph)
node_source = plot.handles['scatter_1_source']
edge_source = plot.handles['multi_line_1_source']
layout_source = plot.handles['layout_source']
self.assertEqual(node_source.data['index'], self.source)
self.assertEqual(edge_source.data['start'], self.source)
self.assertEqual(edge_source.data['end'], self.target)
layout = {str(int(z)): (x, y) for x, y, z in self.graph.nodes.array()}
self.assertEqual(layout_source.graph_layout, layout)
def test_plot_graph_annotation_overlay(self):
plot = bokeh_renderer.get_plot(VLine(0) * self.graph)
x_range = plot.handles['x_range']
y_range = plot.handles['x_range']
self.assertEqual(x_range.start, -1)
self.assertEqual(x_range.end, 1)
self.assertEqual(y_range.start, -1)
self.assertEqual(y_range.end, 1)
def test_plot_graph_with_paths(self):
graph = self.graph.clone((self.graph.data, self.graph.nodes, self.graph.edgepaths))
plot = bokeh_renderer.get_plot(graph)
node_source = plot.handles['scatter_1_source']
edge_source = plot.handles['multi_line_1_source']
layout_source = plot.handles['layout_source']
self.assertEqual(node_source.data['index'], self.source)
self.assertEqual(edge_source.data['start'], self.source)
self.assertEqual(edge_source.data['end'], self.target)
edges = graph.edgepaths.split()
self.assertEqual(edge_source.data['xs'], [path.dimension_values(0) for path in edges])
self.assertEqual(edge_source.data['ys'], [path.dimension_values(1) for path in edges])
layout = {str(int(z)): (x, y) for x, y, z in self.graph.nodes.array()}
self.assertEqual(layout_source.graph_layout, layout)
def test_graph_inspection_policy_nodes(self):
plot = bokeh_renderer.get_plot(self.graph)
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, NodesAndLinkedEdges)
self.assertEqual(hover.tooltips, [('index', '@{index_hover}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_edges(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(inspection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, EdgesAndLinkedNodes)
self.assertEqual(hover.tooltips, [('start', '@{start_values}'), ('end', '@{end_values}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_edges_non_default_names(self):
graph = self.graph.redim(start='source', end='target')
plot = bokeh_renderer.get_plot(graph.opts(plot=dict(inspection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.inspection_policy, EdgesAndLinkedNodes)
self.assertEqual(hover.tooltips, [('source', '@{source}'), ('target', '@{target}')])
self.assertIn(renderer, hover.renderers)
def test_graph_inspection_policy_none(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(inspection_policy=None)))
renderer = plot.handles['glyph_renderer']
self.assertIsInstance(renderer.inspection_policy, NodesOnly)
def test_graph_selection_policy_nodes(self):
plot = bokeh_renderer.get_plot(self.graph)
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.selection_policy, NodesAndLinkedEdges)
self.assertIn(renderer, hover.renderers)
def test_graph_selection_policy_edges(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(selection_policy='edges')))
renderer = plot.handles['glyph_renderer']
hover = plot.handles['hover']
self.assertIsInstance(renderer.selection_policy, EdgesAndLinkedNodes)
self.assertIn(renderer, hover.renderers)
def test_graph_selection_policy_none(self):
plot = bokeh_renderer.get_plot(self.graph.opts(plot=dict(selection_policy=None)))
renderer = plot.handles['glyph_renderer']
self.assertIsInstance(renderer.selection_policy, NodesOnly)
def test_graph_nodes_categorical_colormapped(self):
g = self.graph2.opts(plot=dict(color_index='Label'), style=dict(cmap='Set1'))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['color_mapper']
node_source = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertIsInstance(cmapper, CategoricalColorMapper)
self.assertEqual(cmapper.factors, ['Output', 'Input'])
self.assertEqual(node_source.data['Label'], self.node_info['Label'])
self.assertEqual(glyph.fill_color, {'field': 'Label', 'transform': cmapper})
def test_graph_nodes_numerically_colormapped(self):
g = self.graph3.opts(plot=dict(color_index='Weight'), style=dict(cmap='viridis'))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['color_mapper']
node_source = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertIsInstance(cmapper, LinearColorMapper)
self.assertEqual(cmapper.low, self.weights.min())
self.assertEqual(cmapper.high, self.weights.max())
self.assertEqual(node_source.data['Weight'], self.node_info2['Weight'])
self.assertEqual(glyph.fill_color, {'field': 'Weight', 'transform': cmapper})
def test_graph_edges_categorical_colormapped(self):
g = self.graph3.opts(plot=dict(edge_color_index='start'),
style=dict(edge_cmap=['#FFFFFF', '#000000']))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['edge_colormapper']
edge_source = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertIsInstance(cmapper, CategoricalColorMapper)
factors = ['0', '1', '2', '3', '4', '5', '6', '7']
self.assertEqual(cmapper.factors, factors)
self.assertEqual(edge_source.data['start_str__'], factors)
self.assertEqual(glyph.line_color, {'field': 'start_str__', 'transform': cmapper})
def test_graph_edges_numerically_colormapped(self):
g = self.graph4.opts(plot=dict(edge_color_index='Weight'),
style=dict(edge_cmap=['#FFFFFF', '#000000']))
plot = bokeh_renderer.get_plot(g)
cmapper = plot.handles['edge_colormapper']
edge_source = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertIsInstance(cmapper, LinearColorMapper)
self.assertEqual(cmapper.low, self.weights.min())
self.assertEqual(cmapper.high, self.weights.max())
self.assertEqual(edge_source.data['Weight'], self.node_info2['Weight'])
self.assertEqual(glyph.line_color, {'field': 'Weight', 'transform': cmapper})
###########################
# Styling mapping #
###########################
def test_graph_op_node_color(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 'red'), (0, 1, 1, 'green'), (1, 1, 2, 'blue')],
vdims='color')
graph = Graph((edges, nodes)).options(node_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertEqual(glyph.fill_color, {'field': 'node_color'})
self.assertEqual(glyph.line_color, 'black')
self.assertEqual(cds.data['node_color'], np.array(['red', 'green', 'blue']))
def test_graph_op_node_color_linear(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 0.5), (0, 1, 1, 1.5), (1, 1, 2, 2.5)],
vdims='color')
graph = Graph((edges, nodes)).options(node_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
cmapper = plot.handles['node_color_color_mapper']
self.assertEqual(glyph.fill_color, {'field': 'node_color', 'transform': cmapper})
self.assertEqual(glyph.line_color, 'black')
self.assertEqual(cds.data['node_color'], np.array([0.5, 1.5, 2.5]))
def test_graph_op_node_color_categorical(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 'A'), (0, 1, 1, 'B'), (1, 1, 2, 'C')],
vdims='color')
graph = Graph((edges, nodes)).options(node_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
cmapper = plot.handles['node_color_color_mapper']
self.assertEqual(glyph.fill_color, {'field': 'node_color', 'transform': cmapper})
self.assertEqual(glyph.line_color, 'black')
self.assertEqual(cds.data['node_color'], np.array(['A', 'B', 'C']))
def test_graph_op_node_size(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 2), (0, 1, 1, 4), (1, 1, 2, 6)],
vdims='size')
graph = Graph((edges, nodes)).options(node_size='size')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertEqual(glyph.size, {'field': 'node_size'})
self.assertEqual(cds.data['node_size'], np.array([2, 4, 6]))
def test_graph_op_node_alpha(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 0.2), (0, 1, 1, 0.6), (1, 1, 2, 1)], vdims='alpha')
graph = Graph((edges, nodes)).options(node_alpha='alpha')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertEqual(glyph.fill_alpha, {'field': 'node_alpha'})
self.assertEqual(glyph.line_alpha, {'field': 'node_alpha'})
self.assertEqual(cds.data['node_alpha'], np.array([0.2, 0.6, 1]))
def test_graph_op_node_line_width(self):
edges = [(0, 1), (0, 2)]
nodes = Nodes([(0, 0, 0, 2), (0, 1, 1, 4), (1, 1, 2, 6)], vdims='line_width')
graph = Graph((edges, nodes)).options(node_line_width='line_width')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['scatter_1_source']
glyph = plot.handles['scatter_1_glyph']
self.assertEqual(glyph.line_width, {'field': 'node_line_width'})
self.assertEqual(cds.data['node_line_width'], np.array([2, 4, 6]))
def test_graph_op_edge_color(self):
edges = [(0, 1, 'red'), (0, 2, 'green'), (1, 3, 'blue')]
graph = Graph(edges, vdims='color').options(edge_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertEqual(glyph.line_color, {'field': 'edge_color'})
self.assertEqual(cds.data['edge_color'], np.array(['red', 'green', 'blue']))
def test_graph_op_edge_color_linear(self):
edges = [(0, 1, 2), (0, 2, 0.5), (1, 3, 3)]
graph = Graph(edges, vdims='color').options(edge_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
cmapper = plot.handles['edge_color_color_mapper']
self.assertEqual(glyph.line_color, {'field': 'edge_color', 'transform': cmapper})
self.assertEqual(cds.data['edge_color'], np.array([2, 0.5, 3]))
def test_graph_op_edge_color_categorical(self):
edges = [(0, 1, 'C'), (0, 2, 'B'), (1, 3, 'A')]
graph = Graph(edges, vdims='color').options(edge_color='color')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
cmapper = plot.handles['edge_color_color_mapper']
self.assertEqual(glyph.line_color, {'field': 'edge_color', 'transform': cmapper})
self.assertEqual(cds.data['edge_color'], np.array(['C', 'B', 'A']))
def test_graph_op_edge_alpha(self):
edges = [(0, 1, 0.1), (0, 2, 0.5), (1, 3, 0.3)]
graph = Graph(edges, vdims='alpha').options(edge_alpha='alpha')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertEqual(glyph.line_alpha, {'field': 'edge_alpha'})
self.assertEqual(cds.data['edge_alpha'], np.array([0.1, 0.5, 0.3]))
def test_graph_op_edge_line_width(self):
edges = [(0, 1, 2), (0, 2, 10), (1, 3, 6)]
graph = Graph(edges, vdims='line_width').options(edge_line_width='line_width')
plot = bokeh_renderer.get_plot(graph)
cds = plot.handles['multi_line_1_source']
glyph = plot.handles['multi_line_1_glyph']
self.assertEqual(glyph.line_width, {'field': 'edge_line_width'})
self.assertEqual(cds.data['edge_line_width'], np.array([2, 10, 6]))
