PinchHandler needs to provide translation deltas for non-centered zooming even with weird axis target properties and scaling

     Map {
        id: map
        anchors.fill: parent
        zoomLevel: 14

        PinchHandler {
            id: pinch

            // do not modify x and y properties: use the pan() function
            xAxis.targetProperty: ""
            yAxis.targetProperty: ""
            onTranslationChanged: (delta) => map.pan(-delta.x, -delta.y)

            // convert from multiplicative scale to logarithmic zoomLevel
            scaleAxis.scaleProvider: (na, delta) => map.zoomLevel + Math.log2(delta)
            scaleAxis.targetProperty: "zoomLevel" // map is the target already

            // snap to standard north-up orientation if you're close
            rotationAxis.scaleProvider: (rot, delta) => Math.abs(rot) > 5 ? -rot : 0
            rotationAxis.targetProperty: "bearing"
        }

        const QVector2D delta(pos.x() - m_xAxis.persistentValue(),
                              pos.y() - m_yAxis.persistentValue());
        m_xAxis.updateValue(activeTranslation.x(), pos.x(), delta.x());
        m_yAxis.updateValue(activeTranslation.y(), pos.y(), delta.y());
        updateCentroidForTarget();
        emit translationChanged(delta);