Add a legend item to the current legend, specifying the legend item text, symbol, the associated
PlotObj object, the group number of the attributes to copy in the PlotObject, and font.
Add a legend item to the current legend, specifying the legend item text, symbol, the associated
PlotObj object, the group number of the attributes to copy in the PlotObject, and font.
This constructor creates a new Axis object of the specified type and scales it to match the
minimum and maximum values of the specified PhysicalCoordinates object.