自定义项范例 ¶

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We’ll add the meshes in a resource file:

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

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:

QImage color = QImage(2, 2, QImage::Format_RGB32);
color.fill(Qt::red);
											

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:

QVector3D positionOne = QVector3D(39.0f, 77.0f, 19.2f);
											

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

QCustom3DItem *item = new QCustom3DItem(":/items/oilrig.obj", positionOne,
                                        QVector3D(0.025f, 0.025f, 0.025f),
                                        QQuaternion::fromAxisAndAngle(0.0f, 1.0f, 0.0f, 45.0f),
                                        color);
											

And finally we’ll just add the item:

m_graph->addCustomItem(item);
											

We’ll just call removeCustomItemAt() with the position of the item:

m_graph->removeCustomItemAt(positionOne);
											

范例工程 @ code.qt.io