/*!
    \example examples/barchart
    \title BarChart Example
    \subtitle

    The example shows how to create simple bar chart. Barchart shows the data in sets as separate bars, which are drawn at the x-axis to the position defined by data.

    \image examples_barchart.png
	
    Data that barchart visualizes, is defined by QBarSet instances. Here we create some sets and append data
    we want to visualize to them. Note that x positions are not in even intervals and this will be reflected in the chart.
	If x positions aren't defined, then the index of value is assumed to be x position.

    \snippet ../examples/barchart/main.cpp 1

    To combine the sets to a chart, we need to create QBarSeries instance. Then we append our barsets to the series.

    \snippet ../examples/barchart/main.cpp 2
    
    Next we create a chart and add the series to it.
	We also set the title for chart

    \snippet ../examples/barchart/main.cpp 3

    We want to have the legend displayed at the bottom of the chart. Also we turn on the nice numbers algorithm on for y-axis.

    \snippet ../examples/barchart/main.cpp 4

    Finally we add the chart onto a view.

    \snippet ../examples/barchart/main.cpp 5

    And it is ready to be shown in a window.

    \snippet ../examples/percentbarchart/main.cpp 6
*/