An Axis1D which keeps track of a set of labeled locations along the axis.
Tags may be manipulated programmatically or via mouse interaction.
To enable mouse interaction, a TaggedAxisMouseListener1D must
be added to the GlimpseAxisLayout1D
for the TaggedAxis1D.
Tags may be visualized by drawing the TaggedAxis1D using a painter from the
Fields inherited from class com.metsci.glimpse.axis.Axis1D