  We combine a periodization strategy for weighted $L_{2}$-integrands with
efficient approximation methods in order to approximate multivariate
non-periodic functions on the high-dimensional cube
$\left[-\frac{1}{2},\frac{1}{2}\right]^{d}$. Our concept allows to determine
conditions on the $d$-variate torus-to-cube transformations
${\psi:\left[-\frac{1}{2},\frac{1}{2}\right]^{d}\to\left[-\frac{1}{2},\frac{1}{2}\right]^{d}}$
such that a non-periodic function is transformed into a smooth function in the
Sobolev space $\mathcal H^{m}(\mathbb{T}^{d})$ when applying $\psi$. We adapt
some $L_{\infty}(\mathbb{T}^{d})$- and $L_{2}(\mathbb{T}^{d})$-approximation
error estimates for single rank-$1$ lattice approximation methods and adjust
algorithms for the fast evaluation and fast reconstruction of multivariate
trigonometric polynomials on the torus in order to apply these methods to the
non-periodic setting. We illustrate the theoretical findings by means of
numerical tests in up to $d=5$ dimensions.
