Spatial Databases: With Application to GISElsevier, 30. 5. 2001 - Počet stran: 410 Spatial Databases is the first unified, in-depth treatment of special techniques for dealing with spatial data, particularly in the field of geographic information systems (GIS). This book surveys various techniques, such as spatial data models, algorithms, and indexing methods, developed to address specific features of spatial data that are not adequately handled by mainstream DBMS technology. The book also reviews commercial solutions to geographic data handling: ArcInfo, ArcView, and Smallworld GISs; and two extensions to the relational model, PostgreSQL and Oracle Spatial. The authors examine these underlying GIS technologies, assess their strengths and weaknesses, and consider specific uses for which each product is best suited. |
Vyhledávání v knize
Výsledky 6-10 z 86
... set of homogeneous geographic objects (i.e., objects having the same ... data model (step 2 of Section 1.1.2). This model is here called a geographic model; it represents a way to ... Data Manipulation 11 1.3 Geospatial Data Manipulation.
... data points receive the highest weight in averaging) or so-called modeling technique (e.g., kriging, developed by mining geologists). • Location. In the location problem, there is a known finite set of possible locations to which ...
... data independence principle, and leads to many problems regarding, for instance, data security and concurrency ... set of coordinates of the vertices that correspond to the polygons approximating the boundaries of France; that is ...
... data as well as descriptive data. New spatial types (point, line, region) are handled as base alphanumeric types ... set of possible operations applicable to geometric objects. * There should exist an efficient physical representation of the ...
... set of points but a finite set of pixels. In other words, space is no longer seen as a continuous field, but as a discrete one, which permits an explicit representation of data. An irregular tessellation is used, for instance, in zoning ...
Obsah
1 | |
29 | |
CHAPTER 3 LOGICAL MODELS AND QUERY LANGUAGES | 69 |
CHAPTER 4 THE CONSTRAINT DATA MODEL | 113 |
CHAPTER 5 COMPUTATIONAL GEOMETRY | 149 |
CHAPTER 6 SPATIAL ACCESS METHODS | 201 |
CHAPTER 7 QUERY PROCESSING | 267 |
CHAPTER 8 COMMERCIAL SYSTEMS | 311 |
BIBLIOGRAPHY | 373 |
INDEX | 395 |
ABOUT THE AUTHORS | 409 |
Další vydání - Zobrazit všechny
Spatial Databases: With Application to GIS Philippe Rigaux,Michel Scholl,Agnès Voisard Omezený náhled - 2002 |