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Introduction to Geographic Information Systems Fall 2013 (INF 385T-28620) Dr. David Arctur

Introduction to Geographic Information Systems Fall 2013 (INF 385T-28620) Dr. David Arctur Research Fellow, Adjunct Faculty University of Texas at Austin Lecture 3 September 12, 2013 GIS Outputs. Outline. Map audiences Map layouts Reports and graphs Map scales Interactive map

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Introduction to Geographic Information Systems Fall 2013 (INF 385T-28620) Dr. David Arctur

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  1. Introduction to Geographic Information Systems Fall 2013 (INF 385T-28620) Dr. David Arctur Research Fellow, Adjunct Faculty University of Texas at Austin Lecture 3 September 12, 2013 GIS Outputs

  2. Outline • Map audiences • Map layouts • Reports and graphs • Map scales • Interactive map • Map animation • ArcGIS Online • Exporting maps INF385T(28620) – Fall 2013 – Lecture 3

  3. Two categories of audience INF385T(28620) – Fall 2013 – Lecture 3 • General public • Purpose: communication or information lookup • 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

  4. Map audiences Map use: Exploration Presentation Audience:Trained analyst General public Purpose:Visual thinking Communication Advantages:Graphical Believable Granularity:FineCoarse Symbols:Abstract Mimetic capital railroad INF385T(28620) – Fall 2013 – Lecture 3

  5. Lecture 3 Map layouts INF385T(28620) – Fall 2013 – Lecture 3

  6. 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) INF385T(28620) – Fall 2013 – Lecture 3

  7. 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 INF385T(28620) – Fall 2013 – Lecture 3

  8. Layout example 3 INF385T(28620) – Fall 2013 – Lecture 3 Multiple maps • Same: • Sizes, positions • Scales (map and numeric) • Projection • Color ramps

  9. Bad layout INF385T(28620) – Fall 2013 – Lecture 3

  10. Good layout INF385T(28620) – Fall 2013 – Lecture 3

  11. Lecture 3 Reports and graphs INF385T(28620) – Fall 2013 – Lecture 3

  12. Create a report INF385T(28620) – Fall 2013 – Lecture 3 Select records for a report

  13. Add report to layout INF385T(28620) – Fall 2013 – Lecture 3

  14. Create a graph INF385T(28620) – Fall 2013 – Lecture 3

  15. Create a graph INF385T(28620) – Fall 2013 – Lecture 3

  16. Lecture 3 Map scales INF385T(28620) – Fall 2013 – Lecture 3

  17. 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) INF385T(28620) – Fall 2013 – Lecture 3

  18. Map scales • 1:10,000 is largescale 1:100,000,000 is smallscale INF385T(28620) – Fall 2013 – Lecture 3

  19. Scale 1:100,000 Scale INF385T(28620) – Fall 2013 – Lecture 3

  20. Scale 1:24,000 INF385T(28620) – Fall 2013 – Lecture 3

  21. Scale 1:10,000 INF385T(28620) – Fall 2013 – Lecture 3

  22. Map units • Feet or meters is • the map unit for • most local • government GIS applications INF385T(28620) – Fall 2013 – Lecture 3

  23. Commonly used map scales INF385T(28620) – Fall 2013 – Lecture 3

  24. Lecture 3 Interactive Map INF385T(28620) – Fall 2013 – Lecture 3

  25. Example: Decision support for police INF385T(28620) – Fall 2013 – Lecture 3 • 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

  26. General elements of decision support system INF385T(28620) – Fall 2013 – Lecture 3 • 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. Detection: High burglary levels INF385T(28620) – Fall 2013 – Lecture 3

  28. Detection: Large changes in burglaries INF385T(28620) – Fall 2013 – Lecture 3

  29. Diagnosis: drill down to current burglary and leading indicator crimes INF385T(28620) – Fall 2013 – Lecture 3

  30. Lecture 3 Map animation INF385T(28620) – Fall 2013 – Lecture 3

  31. Create animation INF385T(28620) – Fall 2013 – Lecture 3 • Crimes over time • Set time properties

  32. Animation properties INF385T(28620) – Fall 2013 – Lecture 3 Time slider window and options

  33. 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 INF385T(28620) – Fall 2013 – Lecture 3

  34. Lecture 3 ArcGIS Online

  35. ArcServer software for online maps • Organization must have own server and computer programmers • Expensive to install and maintain • See demos at http://www.esri.com/apps/showcase/index.cfm?fa=showcase&StartRow=126&Tech=ArcGIS INF385T(28620) – Fall 2013 – Lecture 3

  36. ArcGIS Online • Web service hosted by Esri on Esri servers www.arcgis.com • Versions • Free for individuals using standard interface • Subscription web service for organizations • Allows customization of “look” and structure • Can embed into organization website INF385T(28620) – Fall 2013 – Lecture 3

  37. Sample ArcGIS Online individual map • Viewed in browser over the Internet • Uses Schools and Neighborhoods created in ArcGIS for Desktop • Uses basemap with topography and roads from ArcGIS Online INF385T(28620) – Fall 2013 – Lecture 3

  38. Lecture 3 Exporting maps INF385T(28620) – Fall 2013 – Lecture 3

  39. Outputs INF385T(28620) – Fall 2013 – Lecture 3 • 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

  40. Export map INF385T(28620) – Fall 2013 – Lecture 3 Data or layout view

  41. Image file INF385T(28620) – Fall 2013 – Lecture 3

  42. PDF document INF385T(28620) – Fall 2013 – Lecture 3

  43. Word or PowerPoint INF385T(28620) – Fall 2013 – Lecture 3 Copy and paste individual map elements

  44. Summary • Map audiences • Map layouts • Reports and graphs • Map scales • Interactive map • Map animation • ArcGIS Online • Exporting maps INF385T(28620) – Fall 2013 – Lecture 3

  45. Assignment 3-2: First Draft… INF385T(28620) – Fall 2013 – Lecture 3

  46. 3-2: Refined… INF385T(28620) – Fall 2013 – Lecture 3

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