function drawFace( me, face, horizontal, vertical, planeIdx, line1, line2, drawMinFace, cond2, cond3 ) {
    var world3D = new Vector( 0,0,0 );

    world3D[face]        = drawMinFace ? me.Min[face] : me.Max[face];
    world3D[horizontal]     = me.Min[horizontal];
    world3D[vertical]   = me.Min[vertical];
    var screen2D = me.Parent.ScreenPos( world3D );
    // calculate and construct Bbox rectangle path
    ss = "M " + screen2D.x + " " + screen2D.y + " "; // move to corner 1

    world3D[horizontal] = me.Max[horizontal];
    screen2D = me.Parent.ScreenPos( world3D );
    ss += "L " + screen2D.x + " " + screen2D.y + " "; // line to corner 2

    world3D[vertical] = me.Max[vertical];
    screen2D = me.Parent.ScreenPos( world3D );
    ss += "L " + screen2D.x + " " + screen2D.y + " "; // line to corner 3

    world3D[horizontal] = me.Min[horizontal];
    screen2D = me.Parent.ScreenPos( world3D );
    ss += "L " + screen2D.x + " " + screen2D.y + " z"; // line to corner 4 and close back to corner 1

    me.Plane[planeIdx].setAttribute( "d", ss );  // [d]efine the path for this panes Bbox

    world3D[face] = 1; world3D[horizontal] = 0; world3D[vertical] = 0;

    // and set its attributes
    me.Plane[planeIdx].setAttribute( "fill", me.Parent.GetColor( me.FillColor, me.FillColor, world3D, drawMinFace ? me.Min : me.Max ) );
    me.Plane[planeIdx].setAttribute( "stroke", me.StrokeColor );
    me.Plane[planeIdx].setAttribute( "stroke-width", me.StrokeWeight );
    me.Plane[planeIdx].setAttribute( "visibility", "visible" );

    world3D[face] = drawMinFace ? me.Min[face] : me.Max[face];

    // Draw the horizontal and vertical grid lines on this Bbox face
    drawGrid( me, face, horizontal, vertical, line1, cond3, world3D ); // horizontal
    drawGrid( me, face, vertical, horizontal, line2, cond2, world3D ); // vertical
}