function getPositionRelativeToElement(element, rx, ry, rz)
    local matrix = getElementMatrix (element)
    local offX = rx * matrix[1][1] + ry * matrix[2][1] + rz * matrix[3][1] + matrix[4][1]
    local offY = rx * matrix[1][2] + ry * matrix[2][2] + rz * matrix[3][2] + matrix[4][2]
    local offZ = rx * matrix[1][3] + ry * matrix[2][3] + rz * matrix[3][3] + matrix[4][3]
    return offX, offY, offZ
end