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Evaluating the Visual Impact of Maps

July 25, 2012. Evaluating the Visual Impact of Maps. Kenneth Field and Damien Demaj. Kenneth Field. Damien Demaj. ArcGIS Resources - Mapping. http://resources.arcgis.com/en/communities/mapping/home /. Why a checklist approach to evaluation? Cartographic Requirement

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Evaluating the Visual Impact of Maps

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  1. July 25, 2012 Evaluating the Visual Impact of Maps Kenneth Field and Damien Demaj

  2. Kenneth Field

  3. Damien Demaj

  4. ArcGIS Resources - Mapping http://resources.arcgis.com/en/communities/mapping/home/

  5. Why a checklist approach to evaluation? Cartographic Requirement Cartographic design principles - devil is in the detail Putting the pieces together and publishing online Synopsis, final checking Outline of session opportunity compromise O C why A R T G R A P H Y

  6. Why a checklist approach to evaluation? Map User GIS User Knowledge Transfer Map-maker Cartographer

  7. Design is crucial to communication in GIS Large database Equal Treatment No inherent design Data Processing Function Meaning Design

  8. Evaluation as part of the design process

  9. Cartographic Requirement

  10. What’s the story?

  11. Maps are complex graphics Written/spoken word: SERIAL Graphics: PARALLEL

  12. Cartographic requirement Audience Media resolution Viewing distance Output medium Anticipated level of understanding Conditions of use One map or multiple maps What areal extent to show Insets

  13. Demo: requirement

  14. Web maps and basemaps What is a web map? Interactive Multi scale Shared via the web Operational layers and basemap layer What is a basemap? Contextualizes Support Changes infrequently

  15. Cartographic design principles

  16. Visual hierarchy

  17. Visual hierarchy

  18. Demo: visual hierarchy

  19. Visual contrast

  20. Figure-ground

  21. Demo: figure-ground

  22. Projections Online map services WGS 1984 Web Mercator (Auxiliary Sphere) ArcGIS Online Bing OSM Google

  23. Demo: projection

  24. Symbol palette spacing orientation hue size lightness shape

  25. Symbol meaning

  26. Demo: symbols

  27. Classifying data

  28. Feature generalization Large scale Small scale

  29. Feature generalization Simplify Smooth Aggregate Amalgamate Collapse

  30. Feature generalization Merge Refine Exaggerate Enhance Displace

  31. Demo: feature generalization

  32. Colour – sequential (Example of “Sequential”) Sequential

  33. Colour – diverging (Example of “Diverging Critical Class”) Diverging Critical Class Diverging Critical Break

  34. Colour – qualitative (Example of “Qualitative”) Qualitative

  35. Demo: colour

  36. Typography Size Position Purpose 5 point 7 point 10 point12 point 18 point 24 point CITIES Towns villages Conflict Style sans serif serif

  37. Demo: typography

  38. Putting the pieces together

  39. Marginalia in web map apps Map/app title Main map Pop-ups Dynamic legends Sliders, clickable icons Multi-media content Credit and source

  40. Demo: layout

  41. Synopsis

  42. Please complete an online session evaluation • My UC Homepage > “Evaluate Sessions” • Choose session from planner or search for sessionID for this session:Offering #1 ID: 670 events.esri.com/uc/2012/sessionEvals

  43. @kennethfield kfield@esri.com @damiendemaj ddemaj@esri.com

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