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Add Polar chart support...
Add Polar chart support This commit also heavily refactors things as polar chart needs separate implementation of various classes that previously only needed one, such as ChartAxis and ChartLayout. Task-number: QTRD-1757 Change-Id: I3d3db23920314987ceef3ae92879960b833b7136 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

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examples-zoomlinechart.qdoc
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/ doc / src / examples-zoomlinechart.qdoc
Jani Honkonen
Add all examples to docs
r919 /*!
\example examples/zoomlinechart
\title Zoom line example
\subtitle
Jani Honkonen
zoomlinechart example: update docs and series data
r1388 The example shows how to create your own custom zooming effect with QRubberBand by using a mouse
and how to use touch gestures for paning and zooming.
Tero Ahola
Updated bar chart documentation
r971 \image examples_zoomlinechart1.png
\image examples_zoomlinechart2.png
Tero Ahola
Tuning zoom example (key zooming was removed from QChartView)
r966
Let's first create a line series with some example data.
\snippet ../examples/zoomlinechart/main.cpp 1
Then we create a custom chart view by deriving from QChartView:
\snippet ../examples/zoomlinechart/chartview.h 1
We override mouse and key event handling
\snippet ../examples/zoomlinechart/chartview.h 2
Then we implement a custom logic for mouse and key events. For example pressing '+' key will zoom in and pressing
the '-' key will zoom out.
\snippet ../examples/zoomlinechart/chartview.cpp 1
Jani Honkonen
zoomlinechart example: update docs and series data
r1388
We also create our own QChart:
\snippet ../examples/zoomlinechart/chart.h 1
Where we can handle the gestures:
\snippet ../examples/zoomlinechart/chart.cpp 1
Note that you will need to call grabGesture() to both QMainWindow and QChart.
Jani Honkonen
Add all examples to docs
r919 */