Table of Contents
Foreword to the second edition vii
Foreword to the first edition ix
Acknowledgments xi
Chapter 1 Introducing GIS Analysis 1
What is GIS analysis? 3
Understanding geographic features 5
Understanding geographic attributes 14
Chapter 2 Mapping Where Things Are 23
Why map where things are? 24
Deciding what to map 25
Preparing your data 27
Making your map 29
Analyzing geographic patterns 46
Chapter 3 Mapping the Most and Least 51
Why map the most and least? 52
What do you need to map? 53
Understanding quantities 57
Creating classes 63
Making a map 79
Looking for patterns 99
Chapter 4 Mapping Density 105
Why map density? 106
Deciding what to map 107
Two ways of mapping density 109
Mapping density for defined areas 113
Creating a density surface 118
Chapter 5 Finding What's Inside 133
Why map what's inside? 134
Defining your analysis 134
Three ways of finding what's inside 145
Drawing areas and features 148
Selecting features inside an area 153
Overlaying areas and features 160
Chapter 6 Finding What's Nearby 181
Why map what's nearby? 182
Defining your analysis 182
Three ways of finding what's nearby 189
Using straight-line distance 192
Measuring distance or cost over a network 217
Calculating cost over a geographic surface 229
Chapter 7 Mapping Change 241
Why map change? 242
Defining your analysis 242
Three ways of mapping change 257
Creating a time series 259
Creating a tracking map 268
Measuring and mapping change 275
Where to get more information 289
Data credits 294
Index 295