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Clarified QAreaSeries documentation...
Titta Heikkala -
r2754:bd5b4a26e989
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@@ -36,11 +36,15 QT_CHARTS_BEGIN_NAMESPACE
36 36
37 37 \mainclass
38 38
39 An area chart is used to show quantitative data. It is based on line chart, in the way that area between axis and the line
40 is emphasized with color. Since the area chart is based on line chart, QAreaSeries constructor needs QLineSeries instance,
41 which defines "upper" boundary of the area. "Lower" boundary is defined by default by axis X. Instead of axis X "lower" boundary can be specified by other line.
42 In that case QAreaSeries should be initiated with two QLineSeries instances. Please note terms "upper" and "lower" boundary can be misleading in cases
43 where "lower" boundary had bigger values than the "upper" one, however the main point that area between these two boundary lines will be filled.
39 An area series is used to show quantitative data. It is based on line series, in the way that
40 the area between the boundary lines is emphasized with color. Since the area series is based on
41 line series, QAreaSeries constructor needs a QLineSeries instance, which defines "upper"
42 boundary of the area. The area chart is drawn using the bottom of the plot area as the "lower"
43 boundary by default. Instead of the bottom of the plot area, the "lower" boundary can be
44 specified by another line. In that case QAreaSeries should be initialized with two QLineSeries
45 instances. Please note that the terms "upper" and "lower" boundary can be misleading in cases
46 where the "lower" boundary has bigger values than the "upper" one. The main point is that the
47 area between these two boundary lines will be filled.
44 48
45 49 See the \l {AreaChart Example} {area chart example} to learn how to create a simple area chart.
46 50 \image examples_areachart.png
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