コード例 #1
0
def prettifyTree(ete_tree,
                 leaf_font_size=32,
                 branch_support_size=20,
                 show_bootstraps=True,
                 title=None,
                 ts=None):
    ''' Perform standardized functions to make the ETE trees easier to read:
    - Make the branch support bigger
    - Make the leaf fonts bigger
    - Turn off elongating branches for visualization purposes (i.e. make sure the real branch lengths are represented)
    - Change both to standard font (Times)
    - Standardize the tree's width (calculate based on the maximum length from the root to a tip)
    - (optional) add title to tree
    '''

    for node in ete_tree.traverse():
        if node.is_leaf():
            # Make text faces with name = the existing node name but with big font.
            # A side effect of this is that we also get the annotations lined up
            F = faces.TextFace(node.name, ftype="Times", fsize=leaf_font_size)
            node.add_face(F, 0, position="aligned")
        else:
            if show_bootstraps:
                # Make branch support bigger
                F = faces.TextFace(node._support,
                                   ftype="Times",
                                   fsize=branch_support_size)
                node.add_face(F, 0, position="branch-top")

    #correct the long root node bug (fixed in next release)
    ete_tree.dist = 0

    # Optionally create a new TreeStyle if we are not passing in an old one.
    if ts is None:
        ts = TreeStyle()

    # This "fixes" the dashed line issue but makes the tree look terrible.
    # There may be no way around this (and it's likely other tree viewers do the same thing
    # but just don't tell you).
    #ts.optimal_scale_level = "full"

    # We made these bigger so lets turn off the default ones too.
    ts.show_branch_support = False
    ts.show_leaf_name = False

    if title is not None:
        ts.title.clear()
        title = TextFace(title)
        title.hz_align = True
        title.fsize = 52
        ts.title.add_face(title, 0)

    return ete_tree, ts
コード例 #2
0
def prettifyTree(ete_tree, leaf_font_size = 32, branch_support_size = 20, show_bootstraps = True, title=None, ts = None):
    ''' Perform standardized functions to make the ETE trees easier to read:
    - Make the branch support bigger
    - Make the leaf fonts bigger
    - Turn off elongating branches for visualization purposes (i.e. make sure the real branch lengths are represented)
    - Change both to standard font (Times)
    - Standardize the tree's width (calculate based on the maximum length from the root to a tip)
    - (optional) add title to tree
    '''

    for node in ete_tree.traverse():
        if node.is_leaf():
            # Make text faces with name = the existing node name but with big font.
            # A side effect of this is that we also get the annotations lined up
            F = faces.TextFace(node.name, ftype="Times", fsize=leaf_font_size)
            node.add_face(F, 0, position="aligned")
        else:
            if show_bootstraps:
                # Make branch support bigger
                F = faces.TextFace(node._support, ftype="Times", fsize=branch_support_size)
                node.add_face(F, 0, position="branch-top")

    #correct the long root node bug (fixed in next release)
    ete_tree.dist=0

    # Optionally create a new TreeStyle if we are not passing in an old one.
    if ts is None:
        ts = TreeStyle()

    # This "fixes" the dashed line issue but makes the tree look terrible.
    # There may be no way around this (and it's likely other tree viewers do the same thing
    # but just don't tell you).
    #ts.optimal_scale_level = "full"

    # We made these bigger so lets turn off the default ones too.
    ts.show_branch_support = False
    ts.show_leaf_name = False

    if title is not None:
        ts.title.clear()
        title = TextFace(title)
        title.hz_align = True
        title.fsize = 52
        ts.title.add_face(title, 0)

    return ete_tree, ts