examples-splinechart.qdoc
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Marek Rosa
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r435 | /*! | ||
Tero Ahola
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r979 | \example examples/splinechart | ||
| \title SplineChart Example | ||||
| \subtitle | ||||
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Marek Rosa
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Nico Vertriest
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r2610 | The example shows how to create a simple spline chart. | ||
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Tero Ahola
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r979 | \image examples_splinechart.png | ||
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Nico Vertriest
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| To create spline charts we need to put our data into QSplineSeries. QSplineSeries automatically calculates spline segment control points that are needed to properly draw the spline. | ||||
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Marek Rosa
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Marek Rosa
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r901 | \snippet ../examples/splinechart/main.cpp 1 | ||
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Marek Rosa
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Marek Rosa
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r908 | Now let's add some data points to the series. | ||
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Marek Rosa
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Nico Vertriest
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r2610 | \snippet ../examples/splinechart/main.cpp 2 | ||
| The data series has been populated. To display it on a chart we create a QChart object and add the data series to it. We also set the title and the values range on the y-axis, so that our chart's visibility is better. | ||||
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Marek Rosa
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Marek Rosa
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r908 | \snippet ../examples/splinechart/main.cpp 3 | ||
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Nico Vertriest
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| Then we create a QChartView object with QChart as a parameter. This way we don't need to create a QGraphicsView scene ourselves. We also set the Antialiasing on to have the rendered lines look nicer. | ||||
| \snippet ../examples/splinechart/main.cpp 4 | ||||
| Finally, we set the QChartView as the windows's central widget. | ||||
| \snippet ../examples/splinechart/main.cpp 5 | ||||
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Marek Rosa
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r435 | */ | ||