scaling currentItem in PathView

[dsba]

I have a set of data coming from DataModel, I am displaying on PathView as I was required with closed path. I want the currentItem to be always at the center with increased size. Also spacing between each item should be equal.

If PathAttribute is given:
path: Path {
startX: 0
startY: root.height * 0.5

        PathLine {
            x: root.width * 0
            y: root.height * 0.5
        }
        PathAttribute { name: "itemscale"; value: 1.0 }

        PathLine {
            x: root.width * 0.25
            y: root.height * 0.5
        }
        PathAttribute { name: "itemscale"; value: 0.75 }

        PathLine {
            x: root.width * 0.5
            y: root.height * 0.5
        }
        PathAttribute { name: "itemscale"; value: 1.65 }

        PathLine {
            x: root.width * 0.75
            y: root.height * 0.5
        }
        PathAttribute { name: "itemscale"; value: 0.8 }

        PathLine {
            x: root.width
            y: root.height * 0.5
        }
        PathAttribute { name: "itemscale"; value: 1.0 }

This code snippet gives currentItem at center but scaling is slightly present with previous and next item too. Also spacing between each item are not same.

It would be a greater help if someone can explain where I am going wrong to achieve this.

Thanks in advance