/**
* Must be called before a tree is shaded. Goes through all nodes to find states present, to set
* minima and maxima.
*/
public void prepareColors(Tree tree, int drawnRoot) {
minState = MesquiteDouble.unassigned;
maxState = MesquiteDouble.unassigned;
calcMinMaxStates(tree, drawnRoot);
if (getParentData() != null && getParentCharacter() >= 0) {
int ic = getParentCharacter();
ContinuousData data = ((ContinuousData) getParentData());
for (int it = 0; it < data.getNumTaxa(); it++) {
double s = data.getState(ic, it, 0);
maxState = MesquiteDouble.maximum(maxState, s);
minState = MesquiteDouble.minimum(minState, s);
}
} else if (getObservedStates() != null) {
int ic = getParentCharacter();
ContinuousDistribution data = (ContinuousDistribution) getObservedStates();
for (int it = 0; it < data.getNumNodes(); it++) {
double s = data.getState(it);
maxState = MesquiteDouble.maximum(maxState, s);
minState = MesquiteDouble.minimum(minState, s);
}
}
}
