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. |
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... attributes are also referred to as thematic or descriptive attributes (for instance, the name of a land parcel). The foregoing characteristics are not exclusive to geographic information. For example, VLSI layout description also deals ...
... descriptive attributes. For instance, the name and population of a city constitute its description. These are also referred to as alphanumeric attributes. Europe Figure 1.2 A typical map. • A spatial component,. 1. Apart from a few terms ...
... descriptive attributes name, capital, population, and with a geometric attribute referred to as geo, and (2) Languages, representing the distribution of main spoken languages (or families of languages, to be more precise), with the ...
... descriptive attributes, is similar to relational selection and is denoted by opy (T). Consider the query Name and population of countries of 50 million inhabitants or more. After the selection of the countries whose population is ...
... attribute. Record type 7 files contain all landmarks, together with their point coordinates (LALAT, LALONG) and some descriptive attributes (see Table 2.4). STATE and COUNTY give the state code and county name, and CFCC is the Census ...
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 |