Now, they can manage a distance of point up and down in the computer screen.
Three types of law curve are applied on the grid system and it shows that image.



We know the left one is normal grid. It has rectangular, square element in its system. But we also know there are several types of another grid system, triangles, rhombuses, hexagons. It means we already recognize about the deformation of the grid.
Many architect have tried to use that methods, grid deformation. and they also have invented a new type of the deformation of the grid.
These two pictures show a different side of the material treatment. In the steel mill, we can see a mass production. This means only a straight line and surface for its efficiency. But, as you can see in the right picture, if we want to use these production in the construction process of the free-form design, we have to modify each part to fit a suitable position. The size of these small triangle elements on the surface are diferent each other and they have to change the size of each element by hand. It is almost hand-craft work in 21 century. And I feel these shows us a some kind of conflict between manufacture and construction.
So, I think I will focus on the grid deformation whose result on the constructive elements. Structure and facade element will be my primary issue. These two factors usually belong to the grid system and they are main element of the building design.
Furthemore, I also think about the possibility of the normal material which we can use in nowadays, concrete, stone, brick, wood, plastics as suitable elements of free-form design expression.