pie chart issue with 0 as a data point

[bderosier19]

When I try to create a pie chart with some data, {200, 100} for example, the plot is generated and everything looks fine. When I try to pass a 0 value in the data, so something like {200, 0}, I get an empty plot instead of a solid circle representing 100%. I'm following pie_3.cpp to create this chart. Is there an additional line/lines I need to add for this to work?