KEY CONCEPTS & TECHNIQUES IN GIS Part 8 ppt

... GIS Albrecht-3572-Ch-11.qxd 7/13/2007 4: 18 PM Page 84 90 KEY CONCEPTS AND TECHNIQUES IN GIS Coordinate Location in a Cartesian or polar coordinate system dBASE™ Originally a database program, it has ... complicated, but 80 KEY CONCEPTS AND TECHNIQUES IN GIS Albrecht-3572-Ch-11.qxd 7/13/2007 4: 18 PM Page 80 the possible solution space of varying parameters beco...

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... The position is part of a geometry that defines the boundary of that object. 2 KEY CONCEPTS AND TECHNIQUES IN GIS Albrecht-3572-Ch-01.qxd 7/13/2007 4:14 PM Page 2 ACCESSING EXISTING DATA 13 debate, ... handling are all important topics; but, in most instances, a standard textbook on database management would provide an adequate introduction. More interesting are concerns arising...

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... modeling 50 8 Map Algebra 51 8. 1 Raster GIS 51 8. 2 Local functions 53 8. 3 Focal functions 55 8. 4 Zonal functions 56 8. 5 Global functions 57 8. 6 Map algebra scripts 58 9 Terrain Modeling 59 9.1 ... whether they should invest in GIS or wait for GIS functionality in Google Earth (Virtual Earth if you belong to the other camp). This book is indebted to two role models....

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... 14 KEY CONCEPTS AND TECHNIQUES IN GIS coordinate systems. The good news is that most GIS these days relieve us from the burden of translating between the hundreds of projections and coordinate ... resort to a process known as rubber sheeting, where we interac- tively try to link as many individually identifiable points in both datasets to gain enough information to perform a geo...

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... soils occur in County C? Coincidence view Counties A B C D E Figure 24 Overlay as a coincidence function Albrecht-3572-Ch-06.qxd 7/13/2007 5: 08 PM Page 38 36 KEY CONCEPTS AND TECHNIQUES IN GIS Figure ... x,y ID from to ID lines 07 16, 18 08 18, 17 09 17,15 10 15,14 11 14,09 12 09, 08 13 08, 05 14 05,03 15 03,01 16 05,06 17 06,04 18 06,10 19 10,12 20 10,13 21 13,14 07 27,42...

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... study in detail in the next chapter. Albrecht-3572-Ch-06.qxd 7/13/2007 5: 08 PM Page 44 42 KEY CONCEPTS AND TECHNIQUES IN GIS reserve (see Figure 28) . A combination of the regular and the inverse ... revisit this in the next chapter. Core Figure 28 Inward or inverse buffer Figure 29 Corridor function Albrecht-3572-Ch-06.qxd 7/13/2007 5: 08 PM Page 42 50 KEY CONCEPTS AN...

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... 62 56 KEY CONCEPTS AND TECHNIQUES IN GIS By default, the neighborhood is defined to be all eight cells touching the processing cell, plus the processing cell in the middle. As an interesting aside, ... Scripts are also the mechanism behind the raster-based terrain modeling oper- ations discussed in Chapter 9. 2211 2331 23 11 22 1234 56 78 1234 5555 5 588 5 787 85 88 55 = Zon...

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... ever-changing search 22 20 18 16 14 12 10 8 6 4 2 2 4 6 8 10 12 14 16 18 20 22 Figure 59 Geometric mean and geometric median Albrecht-3572-Ch-10.qxd 7/13/2007 5:09 PM Page 72 68 KEY CONCEPTS AND TECHNIQUES ... TECHNIQUES IN GIS Bending of a Plank Abstraction Final Product Figure 55 Historical use of splines 1 10 10 8 8 6 6 6 X 81 0 6 X Y 4 4 4 4 2 2 2 0 2 234 Z Z 567 Φ...

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... 98 100 KEY CONCEPTS AND TECHNIQUES IN GIS DTM (digital terrain model), 62 dynamic modeling, 58, 82 , 86 ecologists, 71, 85 electromagnetic spectrum, 7 elevation, 21–22, 24, 51, 54, 59–62, 66, 89 emergent ... agent-based modeling accuracy, 17– 18, 89 address, 89 aerial photographs, 8 agent, definition, 83 AgentAnalyst, 86 agent-based modeling (ABM), 50, 77, 82 86 ,...

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... Albrecht-3572-Index.qxd 7/13/2007 4:20 PM Page 106 Albrecht-3572-Index.qxd 7/13/2007 4:20 PM Page 1 08 Albrecht-3572-Index.qxd 7/13/2007 4:20 PM Page 107

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