C++/Qt3d binding Sequential Animation based on a variable

Develman

Hi all,

I am new in qml and qt3d development I have found a problem that so far I haven't overcome and it is driving me nuts. My intention is to have a Animation or transformation that is continuously updated by a variablle.

I have successfully loaded a .stl file using qt3d which I can apply a few transformations and animations, I have some data that comes from a C++ class that is being received properly according to the values displayed. However if I enter in an infinite loop SequentialAnimation I would expect my animation to be updated by the new values that I am receiving periodically, as I am printing them out I can see they are different but when I apply a rotation it seems that only uses the one that read only once when it was loaded.
I have also tried to create a java function that returned the updated value by calling it in my to: NumberAnimation, however it didn't work. The behaviour was identical as shown bellow, it rotates only once until it reaches the value initially loaded.
I would truly appreciate any inputs on this, I wonder if NumberAnimation only accepts constant values and probably there could be a better way to do it.

Thank you in advance,

Here is my code:

@Image {

source: "background.jpg"
width: 800
height: 600

property variant m_external: 10 //Periodically updated variable

Viewport
{

    width: 800
    height: 600

   camera: Camera { eye: Qt.vector3d(210,100,190)}

   Item3D
       {
           id: y6
           mesh: Mesh { source : "y6.stl"; options: "ForceSmooth"}
            Light {}

               transform: [
                      Rotation3D {id: swivel1; angle: -90; axis: Qt.vector3d(1,0,0)},
                      Rotation3D {id: swivel2; angle: 0; axis: Qt.vector3d(0,1,0)},
                      Rotation3D {id: swivel3; angle: 0; axis: Qt.vector3d(0,0,1)}
                      ]
               SequentialAnimation
               {
                            running: true
                            loops: Animation.Infinite
                            NumberAnimation {target: swivel2; property: "angle"; to : m_external; duration: 1000; easing.type: "OutQuad"}
               }
       }

}

}@

SDubitskiy

Try SmoothedAnimation.
It recalculates itself when limits change.

Develman

Thanks sDubitskiy, I replaced my NumberAnimation line by the following:
@ SmoothedAnimation{target:swivel2; property : "angle"; to: m_external; duration: 1000; easing.type: "Linear"}@
And didn't work. I think I am going to transfer my code to qt3d instead that looks more intuitive to me, as I don't know how to solve this relatively simple problem with qml.