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-/*!
- \example demos/qmloscilloscope
- \title Oscilloscope
-
- \image demos_qmloscilloscope.png
-
- The oscilloscope application demonstrates how to use the Qt Charts QML API to implement an
- application with strict performance requirements. The application uses generated data with
- configurable characteristics to mimic a simple oscilloscope user interface. To find out the
- actual screen refresh performance of the application, you can set QML_SHOW_FRAMERATE = 1 to
- your run environment settings to get the framerate shown in the application output console.
- To do so go to Projects - Run - Run environment in Qt Creator and select Add. Then you can
- experiment with the different configurable options of the demo application to find the
- configuration that gives you the best performance in your environment.
-
- Note: You can try if enabling OpenGL improves the performance with the following startup
- parameter:
- \code
- -graphicssystem opengl
- \endcode
-
- The application window is shared by control and scope views:
- \snippet ../demos/qmloscilloscope/qml/qmloscilloscope/main.qml 1
- \snippet ../demos/qmloscilloscope/qml/qmloscilloscope/main.qml 2
-
- ControlView implements the buttons used for configuring. ScopeView uses a ChartView to show
- a chart with two line series:
- \snippet ../demos/qmloscilloscope/qml/qmloscilloscope/ScopeView.qml 1
-
- The data of the line series is updated with a QML timer. In a real life application the
- updating could be triggered with a signal from Qt C++ code.
- \snippet ../demos/qmloscilloscope/qml/qmloscilloscope/ScopeView.qml 2
-
- The oscilloscope also allows you to switch the type of the series used for visualizing the
- signal sources. This is implemented by dynamically destroying and creating series:
- \snippet ../demos/qmloscilloscope/qml/qmloscilloscope/ScopeView.qml 3
-*/