LibGdx render a sprite on top of a isometric tile - libgdx

Question

So I have this isometric map, and I want to draw sprites on top of tiles.
but ofcourse if I get the position of the isometric tile, and I draw a sprite on that position, it wont draw on top of the tile since the isomap is rotated.
here if I draw a color cube for each tile position....
##
So my question is, what I have to do to draw this sprite on top of the tile?
Im using IsometricTiledMapRenderer
Thanks in advance, I have been searching for this the whole day and my lack of english vocabulary is not helping for searching
EDIT: #dfour answer almost did the trick.. heres how it looks now...

Answer 1

What you need is to convert Cartesian values to isometric values.
This Isometric Tutorial should help.
//Cartesian to isometric:
isoX = cartX - cartY;
isoY = (cartX + cartY) / 2;
//Isometric to Cartesian:
cartX = (2 * isoY + isoX) / 2;
cartY = (2 * isoY - isoX) / 2;
These functions show how you can convert from one system to another:
function isoTo2D(pt:Point):Point{
var tempPt:Point = new Point(0, 0);
tempPt.x = (2 * pt.y + pt.x) / 2;
tempPt.y = (2 * pt.y - pt.x) / 2;
return(tempPt);
}
function twoDToIso(pt:Point):Point{
var tempPt:Point = new Point(0,0);
tempPt.x = pt.x - pt.y;
tempPt.y = (pt.x + pt.y) / 2;
return(tempPt);
}