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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtDataVisualization module.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
**
****************************************************************************/

/*!
    \example customitems
    \title Custom Items Example
    \ingroup qtdatavisualization_examples
    \brief Adding custom items to a surface graph.
    \since QtDataVisualization 1.1

    The custom items example shows how to add your own custom meshes as items to a graph, and how
    to remove them.

    \image customitems-example.png

    \section1 Adding custom meshes to the application

    We'll add the meshes in a resource file:

    \code
    <RCC>
    ...
    <qresource prefix="/items">
        <file>refinery.obj</file>
        <file>oilrig.obj</file>
    </qresource>
    </RCC>
    \endcode

    \section1 Adding custom item to a graph

    In this example we do not have specific textures for our meshes, so we'll just create a small
    QImage and fill it with a single color:

    \snippet customitems/customitemgraph.cpp 0

    Then we'll specify the position for the item in a variable. This way we'll be able to use it
    later for removing the correct item:

    \snippet customitems/customitemgraph.cpp 1

    Then we'll create a new QCustom3DItem with all the parameters:

    \snippet customitems/customitemgraph.cpp 2

    And finally we'll just add the item:

    \snippet customitems/customitemgraph.cpp 3

    \section1 Removing custom item from a graph

    We'll just call \c removeCustomItemAt() with the position of the item:

    \snippet customitems/customitemgraph.cpp 4

    \section1 Example Contents
*/