示例#1
0
from ete2 import Nexml
# Create an empty Nexml project 
nexml_project = Nexml()

# Load content from NeXML file
nexml_project.build_from_file("trees.xml")

# All XML elements are within the project instance.
# exist in each element to access their attributes.
print "Loaded Taxa:"
for taxa in  nexml_project.get_otus():
    for otu in taxa.get_otu():
        print "OTU:", otu.id

# Extracts all the collection of trees in the project
tree_collections = nexml_project.get_trees()
# Select the first collection
collection_1 = tree_collections[0]

# print the topology of every tree 
for tree in  collection_1.get_tree():
    # trees contain all the nexml information in their "nexml_node",
    # "nexml_tree", and "nexml_edge" attributes.
    print "Tree id", tree.nexml_tree.id
    print tree
    for node in tree.traverse():
        print "node", node.nexml_node.id, "is associated with", node.nexml_node.otu, "OTU"


# Output:
# ==========
示例#2
0
from ete2 import Nexml

# Creates and empty NeXML project
p = Nexml()
# Fill it with the tolweb example 
p.build_from_file("tolweb.xml")

# extract the first collection of trees
tree_collection = p.trees[0]
# and all the tree instances in it
trees = tree_collection.tree

# For each loaded tree, prints its structure and some of its
# meta-properties
for t in trees:
    print t
    print 
    print "Leaf node meta information:\n"
    print
    for meta in  t.children[0].nexml_node.meta:
        print  meta.property, ":", (meta.content)


# Output 
# ==========
# 
# ---- /-node3(Eurysphindus)
#  
# Leaf node meta information:
#  
#  
    '--dpi',
    nargs=1,
    default=[300],
    type=int,
    help='The dots-per-inch (DPI) in the output file.'
)
args = argparser.parse_args()

# Change single-list items into single items.
args.output = args.output[0]
args.dpi = args.dpi[0]
args.width = args.width[0]
args.height = args.height[0]
args.source = args.source[0]

nexml = Nexml()
nexml.build_from_file(args.source)

def build_tree_style(tree):
    # use our simple TSS cascade to prepare an ETE TreeStyle object
    sheets = gather_tss_stylesheets(tree)
    if len(sheets) == 0:
        return None

    # Some styles can be applied to the entire tree
    ts = TreeStyle()
    # For nodes (and other elements?), build an ordered set of TSS rules 
    # to apply to each element in our layout function
    node_rules = []

    for s in sheets: