In the last post I talked about building one side of the octagonal structure. My next step then was to copy this, 7 times to complete the ground floor. I used the dimensions of a floor plan to create a cylinder with 8 sides to align with the walls. However although they were all lined up, there was till “gaps” between the sides which needed to be filled in to complete the structure. I did this by using the splines to create small triangles, converting this to an editable poly, extruding the shape and then using the cap hole modifier to create a shape. Using boolean in the compound objects I used the union option to join this shapes with the wall sides, altogether creating the ground floor.
From here I created another spline for the wall edges, on the outside of the structure were on the Lavabo there would have been a slight pillar.
I next looked at the pillars or columns on the inside of the structure.
This part of geometry was quite simple to do as it involved creating a cylinder, converting it to an editable poly and applying the slice modifier to cut it in half. The by applying the cap hole modifier to the vertices I could then extrude and bevel the pillar to the way I wanted. In Lavabo structure the beveled part of the cylinder at the top of the pillar is actually a decorative capital, however I decided to leave these out, more for time constraints rather than for lack of ability.
Below is an example of the pillar joined with the wall using the boolean command.