# MCCARTYNATOR

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Categories: Tutorials

The aim of this project was to design a parametric structure directly inspired by the artistic production of Davis McCarty. According to the analysis of these shapes, the grasshopper code as been designed in 4 different parts : cornerstone, feet, zone 1 and zone 2.

## 1.1 Cornerstone – Main prism

1. Entry the number of feet of the structure, which is the half of the cornerstone faces.
2. Create as sphere, and subtract to it with huge cylinders to create a prism.
3. Move up the prism to define the height of the whole structure.

## 1.2 Cornerstone – Tetrahedron

1. According to the place of the cornerstone, we determine the height of the tetrahedron.
2. According to the position of the feet, we determine the wight of the tetrahedron.

## 2.1 Feet – Main prism

1. Determine the number of faces of the prism.
2. By symmetry, we align one edge of the prism with the one of the cornerstone.

## 2.2 Feet- Tetrahedron

1. According to the place of the cornerstone, we determine the height of the tetrahedron.
2. According to the position of the feet, we determine the wight of the tetrahedron.

## 3. Zone 1

1. According to the position of the cornerstone and the feet, create a curve.
2. Divide the curve to design four different half-prisms.

## 4. Zone 2

1. According to the position of the cornerstone and the feet, create another curve.
2. Divide the curve to design four different full prisms.

## 5. Symmetries

1. Merge all the geometries which are not the cornerstone.
2. Around the cornerstone, rotate the merged geometry according to the number of feet previously decided.

## 6. Visual effects

1. Divide the final geometry with a DeBrep.
2. Increase the thickness of the edge to shade lights on the structure.
3. Create a material to play with transparency and the reflections on the glass panels.

## 7. Conclusion

1. Without using Delauney meshes, the code might be to heavy and could be optimize.
2. The final shape is finally close from the reality.

It thus confirms that a parametric method of conception could allow the artist to diversify his creations.