Titlebook: IGIS ‘94: Geographic Information Systems; International Worksh Jürg Nievergelt,Thomas Roos,Peter Widmayer Conference proceedings 1994 Sprin

思想

Environments for land application development: issues and design guidelines, (land planning, risk assessment, urban design, pollution control, and so on). In particular, we discuss the approach we believe correct in the development environment design. Moreover, we point out that the development environments should provide the user with high level languages for complex primi

灯丝

左右连贯

Approximations for a multi-step processing of spatial joins,bjects by using a spatial access method. This step provides a set of candidates which consists of answers (hits) and non-answers (false hits). In the second step, the exact geometry of the candidates is transferred from secondary storage into main memory and is tested against the join predicate. Thi

MIME

judiciousness

死亡

装勇敢地做

Deadpan

Hierarchical hypersurface modeling, a decomposition of the domain into a hierarchy of simplicial complexes. We present a data structure for encoding such model as well as an algorithm for building a multiresolution representation of a hypersurface based on a decreasing sequence of tolerance values.

显示

Spatial reallocation of global gridded climate datasets,f the earth. Typical datasets contain 10. to 10. values. Each dataset is organized in a different grid, according to the authors‘s preferences. When calculating the global radiation over the ocean, for example, it is essential that cloud data from at least three different sources can be accessed bas

coalition

Development of specialized geographical information systems for the analysis of large scale radioectechnology. A number of computer environments developed and widely used are presented. A general description of the Central Data Bank on Chernobyl accident is presented..Attributive information has been accumulated for about 10,000 populated areas belonging to 15 oblasts (regions) of Russia. The car