1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
import random
from ete3 import Tree, TreeStyle, NodeStyle, faces, AttrFace, TreeFace
# Tree Style used to render small trees used as leaf faces
small_ts = TreeStyle()
small_ts.show_leaf_name = True
small_ts.scale = 10
def layout(node):
if node.is_leaf():
# Add node name to laef nodes
N = AttrFace("name", fsize=14, fgcolor="black")
faces.add_face_to_node(N, node, 0)
t = Tree()
t.populate(10)
T = TreeFace(t, small_ts)
# Let's make the sphere transparent
T.opacity = 0.8
# And place as a float face over the tree
faces.add_face_to_node(T, node, 1, position="aligned")
def get_example_tree():
# Random tree
t = Tree()
t.populate(20, random_branches=True)
# Some random features in all nodes
for n in t.traverse():
n.add_features(weight=random.randint(0, 50))
# Create an empty TreeStyle
ts = TreeStyle()
# Set our custom layout function
ts.layout_fn = layout
# Draw a tree
ts.mode = "c"
# We will add node names manually
ts.show_leaf_name = False
# Show branch data
ts.show_branch_length = True
ts.show_branch_support = True
return t, ts
if __name__ == "__main__":
t, ts = get_example_tree()
#t.render("tree_faces.png", w=600, dpi=300, tree_style=ts)
t.show(tree_style=ts)
|
