Vector3d type as property in QML (2D)

qtnext

Hi,

Is it possible to use vector3d as property in an item ? It seems it don't works. Is it possible to register QVector3D to use it as property in items ?

stephen

Yes it works fine. You can use it in the axis property of a Rotation element and even animate that:

@
import QtQuick 1.0

Item {
width : 400
height : 400
Rectangle {
x : 100
y : 100
width : 100
height : 100
color : "lightsteelblue"
transform : Rotation {
angle : 45
// axis : Qt.vector3d(1, 0, 0)
SequentialAnimation on axis {
Vector3dAnimation {
from : Qt.vector3d(0.3, 0.3, 0.3)
to : Qt.vector3d(0, 0.6, 0.6)
duration : 1000
}
Vector3dAnimation {
from : Qt.vector3d(0, 0.6, 0.6)
to : Qt.vector3d(0.3, 0.3, 0.3)
duration : 1000
}
loops : Animation.Infinite
}
}
}
}
@

qtnext

I wants to have this for example :
@
Item{

property vector3d value

Text{
text: value.x
}

}

@

mbrasser

Hi,

You can't directly declare properties of type vector3d, but you should be able to do something like this:

@
property variant value: Qt.vector3d(1,0,0)
@

Regards,
Michael

qtnext

ok so it's not possible to have a binded property in qml. There is no way to add new type as binded property ? Is it hardcoded in QML?

mbrasser

The types that can be used like:

@property <type> <name>@

in QML are currently hard-coded. You can see the list of supported types at http://doc.qt.nokia.com/4.7/qml-extending-types.html#supported-property-types.

qtnext

thanks ... reading the documentation, I understand that I can use variant type ... so I can declare a variant property and use vector3 ?

mbrasser

Yes, you should be able to use a variant with vector3d as described earlier, i.e:

@property variant value: Qt.vector3d(1,0,0)@

Is that sufficient for your needs?

qtnext

It seems that it works ... I have to check if it works with my C++ model for Qvector3D property binding