Regions used to determine all the morphological parameters used in this study (ΔC, (b/a)_Lyα, (b/a)_FUV, (b/a)_I, and ΔPA) displayed on the Lyα images for the three galaxies. The blue, green, and red contours are corresponding to the regions where the regions are brighter than SB_Lyα = 1.5 × 10³⁹ erg s⁻¹ kpc⁻², SB_FUV = 2.5 × 10³⁷ erg s⁻¹ kpc⁻² Å⁻¹, SB_I band = 1.5 × 10³⁷ erg s⁻¹ kpc⁻² Å⁻¹ all displayed on the Lyα images (for more information on the limits, see Table 2). The blue, green, and red crosses represent the measured centroids (non-weighted first image moment) within LMR for Lyα, within FUV FEI for FUV, and within I band FEI for band, respectively. The determined PAs in the regions are also displayed with blue dashed, green dotted, and red dash-dotted lines for Lyα, FUV, and I band, respectively. Moreover, the axis ratio (b/a)_Lyα for each region is printed in the lower left part of the panels with blue, green, and red for Lyα, FUV, and I band, respectively. Finally, the centroid shift (ΔC, in kpc) between Lyα and FUV, and the difference between the measured PA of Lyα, and FUV are printed on the lower right side of the panels.