Lecture 3 GIS outputs. Dr. Zhang Spring, 2017

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1 Lecture 3 GIS outputs Dr. Zhang Spring, 2017

2 Model of the course Using and making maps Navigating GIS maps Map design Working with spatial data Geoprocessing Spatial data infrastructure Digitizing File geodatabases Geocoding Interactive maps Map Animations Map layouts Spatial analysis 3D GIS Proximity analysis Kernel density Analyzing Spatial data Network analysis Data mining Spatial regression

3 Outline Map audiences Map layouts Reports and graphs Map scales Map animation ArcGIS Online Exporting maps 3

4 Lecture 3 MAP AUDIENCES 4

5 Two categories of audience General Public Purpose: communication or information look-up Frequency of use: low and irregular Geographic knowledge: general Trained Analyst Purpose: exploration identification and diagnosis of spatial patterns (problems) Frequency of use: high and regular Geographic knowledge: special 5

6 Map audiences Map use: Exploration Presentation Audience: Trained analyst General public Purpose: Visual thinking Communication Advantages: Graphical Believable Granularity: Fine Coarse Symbols: Abstract Mimetic capital railroad 6

7 Lecture 3 MAP LAYOUTS 7

8 Layout example 1 Map most prominent element Map title and subtitle -what, where, and when Legend - no need to label it Legend Data sources Date - date data collected Map author (optional) 8

9 Layout example 2 Graphic scale -on large scale maps North arrow -not always necessary Neatline -rectangular boundary Other elements -Data sources -Inset maps -Data tables -Charts -Photographs 9

10 Layout Example 3 Multiple Maps Same: Sizes, positions Scales (map and numeric) Projection Color ramps 10

11 Bad layout 11

12 Good layout 12

13 Lecture 3 REPORTS AND GRAPHS 13

14 Create a report Select records for a report 14

15 Add report to layout 15

16 Create a graph 16

17 Create a graph 17

18 Lecture 3 MAP SCALES 18

19 Map scales Map scale ratios Dimensionless Used with any linear measurement unit, such as feet, meters, or miles Example, 1:24,000 Representative fraction 1 inch on the map is 24,000 inches on the ground (or 2,000 feet) 19

20 Map scales 1:10,000 is large scale 1:100,000,000 is small scale 20

21 Scale 1:100,000 Scale 21

22 Scale 1:24,000 22

23 Scale 1:10,000 23

24 Map units Feet or meters is the map unit for most local government GIS applications 24

25 Lecture 3 INTERACTIVE MAP 25

26 Example: Decision support for police Detection scan entire jurisdiction for problems/opportunities Where are there large numbers of burglaries? Large increases in burglaries expected? Diagnosis drill down to details for problem solving Analyze patterns of leading indicator crimes that are predictive of future burglaries

27 General elements of decision support system Keep event-data layers (usually product or service demand) up to date Provide enterprise-level choropleth maps for product/service demand level and change for detection and forecasting Provide large-scale map layers with individual demand points for diagnosis Uses visible scale range to turn detailed layers on when zoomed in 27

28 Detection: high burglary levels

29 Detection: large changes in burglaries

30 Diagnosis: drill down to current burglary and leading indicator crimes

31 Lecture 3 MAP ANIMATION 31

32 Create animation Crimes over time Set time properties 32

33 Animation properties Time slider window and options 33

34 Play animation CAD Calls Context shows recent historical crime points CAD Calls shows current crime points Combination of two layers shows emerging, persisting, and extinguishing spatial crime clusters 34

35 Lecture 3 ARCGIS ONLINE 35

36 ArcServer software for online maps Organization must have own server and computer programmers Expensive to install and maintain See demos at a=showcase&startrow=126&tech=arcgis 36

37 ArcGIS Online Web service hosted by Esri on Esri servers Versions Free for individuals using standard interface Subscription web service for organizations Allows customization of look and structure Can imbed into organization web site 37

38 Process for individuals 1. Get free accounts at Esri 2. Create local map layers in ArcGIS Desktop and upload to ArcGIS Online for use in your online maps 3. Author and provide access to map compositions in ArcGIS Online using your local and ArcGIS Online map layers 4. Upload layer packages (file with data and symbolization) from ArcGIS Desktop to your ArcGIS Online account (up to 2GB) for sharing with others 38

39 Sample ArcGIS Online individual map Viewed in browser over the Internet Uses Schools and Neighborhoods created in ArcGIS Desktop Uses basemap with topography and roads from ArcGIS Online 39

40 Lecture 3 EXPORTING MAPS 40

41 Outputs Raster.BMP,.TIF,.JPG Size/Resolution Color options Vector Enhanced Metafile (.emf), Encapsulated PostScript (.eps) Adobe Illustrator (.ai) Layer packages (.lpk).dxf or.dwg Web.JPG,.PDF 41

42 Export map Data or Layout view 42

43 Image file 43

44 PDF document 44

45 Word or PowerPoint Copy and paste individual map elements 45

46 Summary Map audiences Map layouts Map scales Map animation ArcGIS Online Exporting maps 46

47 Lab and Assignment Lab: Tutorial 3-1 Tutorial 3-8 Assignment: P136, 142 Assignment 3-1 Assignment

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