Comparison between the observed [NII]λ6584 emission line profile (black) and the model emission (red) of NGC 4945, extracted from a spaxel with a prominent blue-shifted wing. Top and bottom panels show the unweighted and weighted emission, respectively. Left panels: the model emission is obtained with the best fit parameters reported in Table 1. Right panels: as a demonstrative example, we show the model line profile as obtained by assuming an unsuitable inclination and opening angle. Such a configuration is clearly not able to to reproduce the high-velocity, blue-shifted emission, thus causing a sharp cut off. The absence of clouds in all velocity channels where emission is observed, prevent the model to reproduce the observed outflow properties.