OBJECT-ORIENTED ANALYSIS AND DESIGN CONCEPTS OF SPACE AND TIME Phần 9 pps

... book 7 2 Concepts of space and time 9 2.1 The space- dominant view 9 2.2 The time- dominant view 11 2.3 The absolute space- time view 12 2.4 The relative space view 13 2.5 The relative time view ... relative space- time view 14 2.7 Choosing the view for a GIS 16 2.8 Time geography 16 2 .9 Time geography and GIS 19 2.10 Main elements of a space- time path...

Ngày tải lên: 08/08/2014, 00:23

... in space and time, i.e. the space- time path (relative space- time view). However, by having space and time as orthogonal dimensions, Time Geography requires the absolute view of space and time. ... structures of a space- time path: identity, location and direction. Any OBJECT-ORIENTED DESIGN FOR TEMPORAL GIS 26 ( 197 7), Carlstein, Parkes and Thrift ( 1...

Ngày tải lên: 08/08/2014, 00:23

... valid time has been proposed for event time (Copeland and Maier, 198 4), effective time (Ben-Zvi, 198 2), logical time (Dadam, Lum and Werner, 198 4; Lum et al., 198 4), state (Clifford and Warren, 198 3) ... working on a reference object-oriented data model (NIST, 199 1; ODMG, 199 4; Kim, 199 1). Although the ANSI Standards Committee has not yet recognised the ODMG -93 as an...

Ngày tải lên: 08/08/2014, 00:23

... nearness of states and events on the space- time path of a lifespan of an entity. The demise circumstance characterises the closure of a space- time path. It can occur on the space- time path at any time ... chapter. OBJECT-ORIENTED DESIGN FOR TEMPORAL GIS 46 feasibility of applying object-oriented methods to the problem of handling space and time in GIS....

Ngày tải lên: 08/08/2014, 00:23

... Defanti and Brown, 198 7) so users need to have a natural acuity for recognising and interpreting visual patterns (Fedra, 199 2; Buttenfield, 199 3), and an intuitive understanding of large amounts of ... 3 Figure 6 .9 Execution of the update scenario—stage 1 Figure 6.10 Execution of the update scenario—stage 2 OBJECT-ORIENTED DESIGN FOR TEMPORAL GIS 94 between historical...

Ngày tải lên: 08/08/2014, 00:23

... object- oriented design, Proceedings of GIS/LIS 97 , pp. 316–21. BLOM, T. and LÖYTÖNEN, M., 199 3, Research launch system to monitor epidemics in Finland. GIS Europe, 2(5), 27 9. EMERGING TECHNOLOGIES 99 and design ... temporal database design (Al-Taha, Snodgrass and Soo, 199 4; Snodgrass, Al-Taha and Soo, 199 3; Tansel et al., 199 3; Soo, 199 1) has addressed issues related...

Ngày tải lên: 08/08/2014, 00:23

... National Institute of Standards and Technology. ODMG, 199 4, Response to the March 199 4 ODMG -93 commentary. SIGMOD Record, 23(3), 3–7. OLANDER, L. and CARLSTEIN, T., 197 8, The study of activities in ... PARKES, D. and THRIFT, N. (eds) Timing Space and Spacing Time, Vol. 2, Human Activity and Time Geography, Lund: Royal University of Lund, pp. 198 –213. ORNSTEIN, R.E.,...

Ngày tải lên: 08/08/2014, 00:23