Using the SIMECA code developped by Stee & Araùjo(1994),we report theoretical HI visible and near-IR line profiles, i.e. Hα(6562 Å), Hβ (4861 Å) and Brγ (21 656 Å),and intensity maps for a large set of parameters representative of early to late Be spectral types. We have computed the size of the emittingregion in the Br γ line and its nearby continuum which both originatefrom a very extended region, i.e. at least 40 stellar radii which is twice thesize of the Hα emitting region. We predict the relative fluxesfrom the central star, the envelope contribution in the given lines and in thecontinuum for a wide range of parameters characterizing the disk models.Finally, we have also studied the effect of changing the spectral type on our results and we obtain a clear correlation between the luminosityin Hα and in the infrared.