Take a moment to review figure 1-33. This pie chart represents the pie
chart developed in the lesson. This pie chart compares each expenditure
to the total budget. You can see the largest segment starts at the 12
o'clock position and the designer has plotted the segments from largest
to smallest, moving clockwise. Each segment has its relationship to the
budget and its percentage of the total indicated.
Figure 1-33.
Budget expenditure pie chart
(b) Shading in a pie chart.
Additionally, shading provides
contrast to the segments. The designer added shading from light to dark,
moving clockwise, and did not obscure the lettering on the chart.
Whenever possible, the pie chart was lettered in the appropriate segment.
However, when the segment was too small to accommodate the lettering, the
designer placed the lettering so the reader can see it without taking his
eyes off the chart.
The designer also used leader lines to identify
segments to which the information belongs.
(5) Pie chart comparing size of segments. You also can use a pie
chart to make a comparison between the size of the individual segments.
To prepare this type of chart, you use the process described in the
preceding paragraphs. You must calculate the percentages and the number
of degrees in each and plot this information the same way.
With the
information plotted, you must draw the pie with the proper perspective
and depth, and slightly separate each segment. Figure 1-34 shows a pie
chart comparing the size of the segments to each other.
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SS0530
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