Styled publication of NeXML/NeXSON trees

This is a proof-of-concept implementation, applying TSS styles to the existing tree-visualization features of ETE.

• Python 2.5+
• pip
• ete2
• tinycss

easy_install pip
pip install tinycss

python pstastic.py examples/met1.xml default.nexss

Not surprisingly, ETE doesn't support all of the styles and manipulations we would like.

tree {tip-orientation: left;}
tree.upward {tip-orientation: top;}

We apparently can't rotate trees cleanly in ETE. That is, the entire diagram is rotated, so labels appear sideways or upside-down. There's no provision for legibility or spacing, so this is effectively useless.

figure {
	background-color: white;
	width: 500px;
	height: 500px;
}

Sadly, None of these seem to be available through ETE's TreeStyle. It seems to reckon width and height based on the tree and scale.