Rhino-Grasshopper model steps;
1st step:
-Creating 4 main corner curve of column capital.
-Divide curves to 40 segments.
-Cull opposed elements with True, False, True , False boolean.
-Cull other opposed elements with False, True , False,True boolean.
2nd step:
-Create a line between points.
-Create a surface with 4 main corner curve and 4 secondary curve.
-Project lines to lofted surface.
-Extrude oriented lines.
3rd step:
-Create 2 horizontal, 2 vertical supporter surface middle of the rectangle.
- Bake and intersect supporter from each other like waffle structure.
-Bake and intersect supporter also from horrizontal elements.