ED ANALYSIS AND DESIGN CONCEPTS OF SPACE AND TIME Phần 2 pot

... element of the space- time path 21 2. 10 .2 Event as an element of the space- time path 22 2. 10.3 Episode as an element of the space- time path 24 2. 10.4 Evidence as an element of the space- time path 24 PREFACE xii the ... of this 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 ab...

... behaviour of people’s movements: CONCEPTS OF SPACE AND TIME 15 Figure 2. 3 (a) New Zealand in absolute space (b) New Zealand in 1953 time space (c) New Zealand in 1970 time space. (Reprinted by permission ... been adopted for the time dimension. CONCEPTS OF SPACE AND TIME 19 2. 9 TIME GEOGRAPHY AND GIS Although Time Geography is an effective approach t...

... relationship OBJECT-ORIENTED ANALYSIS AND DESIGN 41 Snodgrass and Ahn (1985, 1986) have also demonstrated the existence of a true orthogonality between transaction time and valid time which allows each kind of time ... 1983) and start/end time (Reed, 1978). Correspondingly, valid time has been proposed for event time (Copeland and Maier, 1984), effective time (...

... the space- time path, not the space- time path itself. The historical view of the observer is reduced to the perception of nearness of states and events on the space- time path of a lifespan of an ... viewpoint of the fused space and time dimensions rather than the dimensions themselves and their orthogonality. The space- time path is treated as the core of...

... understanding of the STDM and the information stored in the database. 6.7 CONCLUSIONS This chapter has illustrated some examples of how space- time paths can be created by a user. The states and ... The origin of a space- time path in the VMDS can never be modified. In this example the origin of a space- time path is created once the properties of the Assumption class h...

... simultaneously defined in space and time (2D space, time) . An event in space and time can be defined as (point, point). Otherwise an event having a certain period of time could be defined as (point, ... data model capture the synergy between space and time of a space- time path in Time Geography. In terms of STDM, spatio-temporal data types offer the advantag...

... 11 time 17 absolute time 11 cyclical time 13 dimension 38 timestamp 10 relative time 13, 16 user-defined data type 12 time change objects 42 Time Geography 5, 16, 19 26 space- time path 16, 20 25 potential ... 56 branching configuration 21 C++ 32 cadastral mapping 10 CASE tools 31, 39 change 33 long-term changes 22 , 24 , 52 medium-term changes 22 , 24 short-term...