* text labels for major ticks
 * columns
 * bars
 * impulses
 * steps
 * legend
 * annotations
 * 3d plots

| * pad side opposite of axis label only if there is no label on that side
 * using padding functions not raw data structure pdFoo, pdBar

 * simple interface
 * tick values
 
 * adjustable elements (x,y adjustments)
 * settable plot sizes (so we can have same plot areas with only bottom one with axis)