This class is a fusion between python and Qt functionality.
When an active QPainter is passed into draw_structure, this is drawn
Bases: lib_openmolar.client.qt4.widgets.chart_widgets.teeth.ChartTooth
custom class which holds data about a root
a boolean so that it’s clear this is a ChartRoot, not the parent class ChartTooth
this variable determines the opacity of any painting
returns an appropriate svg or None (in which case self.svg_renderer is used)
presently, I only have an SVG for an implant.
a reference to a QtSvg.QSvgRenderer with the correct svg