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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Free Documentation License Usage
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file. Please review the following information to ensure
-** the GNU Free Documentation License version 1.3 requirements
-** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-    \example qml3doscilloscope
-    \title Qt Quick 2 Oscilloscope Example
-    \ingroup qtdatavisualization_examples
-    \brief Example of a hybrid C++ and QML application.
-
-    The Qt Quick 2 oscilloscope example shows how to combine C++ and QML in an application,
-    as well as showing data that changes realtime.
-
-    \image qml3doscilloscope-example.png
-
-    The interesting thing about this example is combining C++ and QML, so we'll concentrate on
-    that and skip explaining the basic functionality - for
-    more detailed QML example documentation, see \l{Qt Quick 2 Scatter Example}.
-
-    \include examples-run.qdocinc
-
-    \section1 Data Source in C++
-
-    The item model based proxies are good for simple and/or static graphs, but to achieve
-    best performance when displaying data changing in realtime, the basic proxies should be used.
-    Those are not supported in QML, as the data items they store are not \l{QObject}s and
-    cannot therefore be directly manipulated from QML code.
-    To overcome this limitation, we implement a simple \c DataSource class in C++ to populate the
-    data proxy of the series.
-
-    The \c DataSource class provides three methods that can be called from QML:
-
-    \snippet qml3doscilloscope/datasource.h 0
-
-    The first method, \c generateData(), creates a cache of simulated oscilloscope data for us
-    to display. The data is cached in a format accepted by QSurfaceDataProxy:
-
-    \snippet qml3doscilloscope/datasource.cpp 0
-
-    The second method, \c update(), copies one set of the cached data into another array, which we
-    set to the data proxy of the series by calling QSurfaceDataProxy::resetArray().
-    We reuse the same array if the array dimensions have not changed to minimize overhead:
-
-    \snippet qml3doscilloscope/datasource.cpp 1
-
-    \note Even though we are operating on the array pointer we have previously set to the proxy
-    we still need to call QSurfaceDataProxy::resetArray() after changing the data in it to prompt
-    the graph to render the data.
-
-    To be able to access the \c DataSource methods from QML, we need to expose it. We do this by
-    defining a context property in application main:
-
-    \snippet qml3doscilloscope/main.cpp 0
-
-    To make it possible to use QSurface3DSeries pointers as parameters on the
-    \c DataSource class methods on all environments and builds, we need to make sure the meta
-    type is registered:
-
-    \snippet qml3doscilloscope/datasource.cpp 3
-    \dots 0
-    \snippet qml3doscilloscope/datasource.cpp 4
-
-    \section1 QML
-
-    In the QML codes, we define a Surface3D graph normally and give it a Surface3DSeries:
-
-    \snippet qml3doscilloscope/qml/qml3doscilloscope/main.qml 0
-
-    One interesting detail is that we don't specify a proxy for the Surface3DSeries we attach
-    to the graph. This makes the series to utilize the default QSurfaceDataProxy.
-
-    We also hide the item label with \l{Abstract3DSeries::itemLabelVisible}{itemLabelVisible}, since
-    we want to display the selected item information in a \c Text element instead of a floating
-    label above the selection pointer.
-    This is done because the selection pointer moves around a lot as the data changes, which makes
-    the regular selection label difficult to read.
-
-    We initialize the \c DataSource cache when the graph is complete by calling a helper function
-    \c generateData(), which calls the method with the same name on the \c DataSource:
-
-    \snippet qml3doscilloscope/qml/qml3doscilloscope/main.qml 2
-    \dots 4
-    \snippet qml3doscilloscope/qml/qml3doscilloscope/main.qml 4
-
-    To trigger the updates in data, we define a \c Timer item which calls the \c update() method on the \c
-    DataSource at requested intervals. The label update is also triggered on each cycle:
-
-    \snippet qml3doscilloscope/qml/qml3doscilloscope/main.qml 3
-
-    \section1 Enabling Direct Rendering
-
-    Since this application potentially deals with a lot of rapidly changing data, we use direct
-    rendering mode for performance. To enable antialiasing in this mode the surface format of the application
-    window needs to be changed, as the default format used by QQuickView doesn't support antialiasing.
-    We use the utility function provided by Qt Data Visualization to change the surface format
-    in \c main.cpp:
-
-    \snippet qml3doscilloscope/main.cpp 1
-    \dots 0
-    \snippet qml3doscilloscope/main.cpp 2
-
-*/