The files of the interactive figure (14 three-dimensional models) of Figure 5 are available in the x3d file format:
Figure 5. The interactive figure of the morpho-kinematic mesh models (14 models in the X3D file format) of the PNe M 3-30, Hb 4, IC 1297, Th 2-A, Pe 1-1, M,1-32, M 3-15, M 1-25, Hen 2-142, K 2-16, MGC 6578, M 2-42, NGC 6567 and NGC 6629 in the X3DOM framework.