  Supernova remnants (SNRs) are believed to be the main sources of galactic
cosmic rays. Discovery of the non-thermal component in X-ray spectrum of SN
1006 in 1995 and detection of a number of SNRs by H.E.S.S. strengthen the
investigation of SNRs. SN 1006 remains to be one of the most interesting
objects for high-energy astrophysics. Electrons accelerated by the shock are
the source of the non-thermal radiation in radio, X-rays (via synchrotron
emission) and \gamma-rays (via inverse-Compton process). Experimental images of
SN 1006 are known in all these bands, including the very-high energy \gamma-ray
range. An important task is therefore to model the distribution of the surface
brightness in SNRs. We develop a method for synthesis of SNR maps due to the
non-thermal radiation of electrons in radio, X-rays and \gamma-rays. In
particular, the method takes into account the injection of particles and the
behaviour of magnetic field at shocks with different obliquities as well as the
radiation losses of electrons downstream of the shock. The method is used to
model images of SN 1006. The images well correlate with the observations in
radio and X-ray but not in \gamma-ray range. For coincide in \gamma-ray range
it is needed to increases parameters \eta and E_{f}.
