In the 21st century, Web spread explosively, and today is the time geological information can send cheaply, at high speed, with improvement of the expressive power. In the Web site to which geological information is offered, interactive processing is important to correspond to the user's wide various needs flexibly. Smart Tiles architecture was designed for improvement of interactive processing. This architecture adds a high-speed tile conversion process between the conventional pyramid tiles on the server side in a tile map system and client display processing. To use this architecture can achieve speeding and highly functional at the same time compared with technology of existence using WebGIS, WMS and a usual tile. The tile conversion process can be implemented to both server side and client side. We applied this architecture to the Seamless Geological Map of Japan using server side implementation, and could make the function which visibility of each geological unit is changed at high speed. It's also possible to apply this architecture besides the geologic map.

We propose a bitwise operation useful to perform set operations related to the logical model of geologic structure. Let S be a surface dividing a 3D region Ω into two subspaces. We partition Ω into three mutually prime subspaces: S itself, the upper half-space S⁺ and the lower one S⁻ and assign a three-digit binary number to each of eight subsapces generated by S. Then a set of the subsapces is Boolean isomorphic to a set of three-digit binary numbers, and so operations on such as intersection, union and complement can be replaced by corresponding bitwise operations on . Given sufaces S₁, …, S_n, a subspace defined as intersection of subspaces generated by each surface is uniquely corresponded to a n-tuple (x₁, …, x_n) ∈ⁿ, denoted by p(x₁, …, x_n). Operations such as union, intersection and complement of subaspaces can be replaced by corresponding bitwise operations of elements in the n-tuple. The procedures are generalized in the form of operation rules. Efficiency of the operation method is verified through application to the logical model of geologic structure defined by four boundary surfces.