Method resetTransformCenter

Engine/RotoDrawableItem.cpp:1492–1516

}

void
RotoDrawableItem::resetTransformCenter()
{
    double time = getContext()->getNode()->getApp()->getTimeLine()->currentFrame();
    RectD bbox =  getBoundingBox(time);
    KnobDoublePtr centerKnob = _imp->center;

    centerKnob->beginChanges();

    std::pair<int, KnobIPtr> hasMaster = centerKnob->getMaster(0);
    if (hasMaster.second) {
        for (int i = 0; i < centerKnob->getDimension(); ++i) {
            dynamic_cast<KnobI*>( centerKnob.get() )->unSlave(i, false);
        }
    }
    dynamic_cast<KnobI*>( centerKnob.get() )->removeAnimation(ViewSpec::all(), 0);
    dynamic_cast<KnobI*>( centerKnob.get() )->removeAnimation(ViewSpec::all(), 1);
    centerKnob->setValues( (bbox.x1 + bbox.x2) / 2., (bbox.y1 + bbox.y2) / 2., ViewSpec::all(), eValueChangedReasonNatronInternalEdited );
    if (hasMaster.second) {
        for (int i = 0; i < centerKnob->getDimension(); ++i) {
            dynamic_cast<KnobI*>( centerKnob.get() )->slaveTo(i, hasMaster.second, i);
        }
    }
    centerKnob->endChanges();
}

NATRON_NAMESPACE_EXIT