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 1-5 z 83
... GEOMETRY 149 An Introduction to Computational Geometry 150 Background 150 5.2.1 Basic Concepts of Algorithms 151 5.2.2 Algorithm Analysis 152 5.2.3 Optimality 153 5.2.4 Data Structures 155 Useful Algorithmic Strategies 157 5.3.1 ...
... geometry (location in the underlying geographic space, shape, and so on) and topology (spatial relationships existing among objects, such as adjacency). For instance, a city might have as a geometric value a polygon in 2D space. The ...
... geometry. A theme has to be represented according to the GIS logical data model (step 2 of Section 1.1.2). This model is here called a geographic model; it represents a way to describe and manipulate themes and their objects in a DBMS ...
... geometry is the intersection of the participating objects' geometry (see Chapter 6). If ><g denotes a spatial join, and T and T5 are themes, then the overlay is expressed as T. B-1G T3. Figure 1.6 gives an example of the overlay of ...
... geometry of the geographic objects and the geometry of the area. MERGER The merger operation performs the geometric union of the spatial part of n geographic objects that belong to the same theme, under a condition supplied by the end ...
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 |