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Diffstat (limited to 'examples/3d_drawing/mayavi2_spring.py')
-rw-r--r-- | examples/3d_drawing/mayavi2_spring.py | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/examples/3d_drawing/mayavi2_spring.py b/examples/3d_drawing/mayavi2_spring.py new file mode 100644 index 00000000..bec09694 --- /dev/null +++ b/examples/3d_drawing/mayavi2_spring.py @@ -0,0 +1,43 @@ +""" +======= +Mayavi2 +======= + +""" + +import networkx as nx +import numpy as np +from mayavi import mlab + +# some graphs to try +# H=nx.krackhardt_kite_graph() +# H=nx.Graph();H.add_edge('a','b');H.add_edge('a','c');H.add_edge('a','d') +# H=nx.grid_2d_graph(4,5) +H = nx.cycle_graph(20) + +# reorder nodes from 0,len(G)-1 +G = nx.convert_node_labels_to_integers(H) +# 3d spring layout +pos = nx.spring_layout(G, dim=3, seed=1001) +# numpy array of x,y,z positions in sorted node order +xyz = np.array([pos[v] for v in sorted(G)]) +# scalar colors +scalars = np.array(list(G.nodes())) + 5 + +mlab.figure() + +pts = mlab.points3d( + xyz[:, 0], + xyz[:, 1], + xyz[:, 2], + scalars, + scale_factor=0.1, + scale_mode="none", + colormap="Blues", + resolution=20, +) + +pts.mlab_source.dataset.lines = np.array(list(G.edges())) +tube = mlab.pipeline.tube(pts, tube_radius=0.01) +mlab.pipeline.surface(tube, color=(0.8, 0.8, 0.8)) +mlab.orientation_axes() |