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doc: Updated zoom line chart example screens
doc: Updated zoom line chart example screens
Tero Ahola - - Load All Authors

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/*!
\example examples/linechart
\title LineChart Example
\subtitle
The example shows how to create simple line chart.
\image examples_linechart.png
To create line chart, QLineSeries instance is needed. Let's create one.
\snippet ../examples/linechart/main.cpp 1
Then we add data to series. We can use add() member function or use stream operator.
\snippet ../examples/linechart/main.cpp 2
To present the data on the char we need QChart instance. We add the series to it and set the title of the chart.
\snippet ../examples/linechart/main.cpp 3
Then we create a QChartView object with QChart as a parameter. This way we don't need to create QGraphicsView scene ourselves. We also set the Antialiasing on to have the rendered lines look nicer.
\snippet ../examples/linechart/main.cpp 4
Chart is ready to be shown.
\snippet ../examples/linechart/main.cpp 5
*/