Display X or Y Point Center with a Text+ Tool

Hello,
I'm trying to display the X Position of a point center using an expression in the tool Text+,
The expression : Text(PolylineStroke3.Point0)
But the result is not really what I have expected.
Result : cdata<struct Point *>: 0x7fd96acdd100
Do you know what should I do to have the X or Y position of this point ?
Thanks you !
Alex
I'm trying to display the X Position of a point center using an expression in the tool Text+,
The expression : Text(PolylineStroke3.Point0)
But the result is not really what I have expected.
Result : cdata<struct Point *>: 0x7fd96acdd100
Do you know what should I do to have the X or Y position of this point ?
Thanks you !

Alex