Constants which determine the type of a [[Wall]], i.e., back, side, or floor. Applicable only for 3-D charts.
Applies to the back and side walls, and the floor.
The back wall, i.e., "behind" the plot area.
The bottom wall, i.e., the floor of the chart.
The side wall. Note that only one side is ever visible, based on the rotation around the Y-axis.
Constants which determine the type of a [[Wall]], i.e., back, side, or floor. Applicable only for 3-D charts.