Frontal view.
These are the steps for the 3D reconstruction of Biedermeier sofa:
Because the object is symmetrical it was decided to realize only one half of all its components, and then the using of the functions STRUCT and SCALE "STRUCT([halfBiedermeier, S([0])([-1])(halfBiedermeier)])" generates the other half respect to x - axis.
The basement has been realized through the use of CUBOID function, the columns have been realized thanks to a function CYLINDER which takes in input radius,high and return a cylinder, to which have been added two capitals.
Have been added two planes obtained by invoking CUBOID.
The upper sitting has been realized before drawing the control curves of the symmetry of the figure, then using them to define the corrispondent surface. To do this have been used BEZIER and CUBIC_HERMITE.
Armerest has been reconstructed by th extrusione of a semicircle, obtained by a RING function.
As for the upper sitting, backrests has been realized before drawing the control curves of the symmetry of the figure, then using them to define the corrispondent surface. To do this have been used BEZIER and CUBIC_HERMITE.
means steps have been generated simply thanks to CUBOID function.
The final result is shown below.
The code of the implementation in Javascript is available here.