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Making Beautiful Maps

2013 Esri International User Conference July 8–12, 2013 | San Diego, California. Technical Workshop. Making Beautiful Maps. Aileen Buckley and Kenneth Field. Agenda. Show you some maps we have made Explain some of the methods we used to make them Share some resources with you Aileen:

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Making Beautiful Maps

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  1. 2013 Esri International User Conference July 8–12, 2013 | San Diego, California Technical Workshop Making Beautiful Maps Aileen Buckley and Kenneth Field

  2. Agenda • Show you some maps we have made • Explain some of the methods we used to make them • Share some resources with you • Aileen: • Bivariate choropleth maps • Temporal maps • Ken: • Minard flow map of Napoleon's March on Moscow • Dasymetric mapping for the U.S. presidential election Making Beautiful Maps

  3. Bivariate choropleth maps Aileen Buckley Making Beautiful Maps

  4. What are bivariate choropleth maps? • Maps that simultaneously show two variables using the choroplethmap method • Choropleth maps use polygon fills to represent quantitative values • Greekχώρο– + πλήθ[ος] • “choro” (area/region) + “pleth” = quantity/increase Making Beautiful Maps

  5. Making Beautiful Maps

  6. What are the considerations when you use choropleth maps? • Choropleth maps give the impression of • Uniformity in data within the data collection units • Abrupt breaks that occur at the unit boundaries • Use quantitative values that are spatially intensive (do not depend on the size of the unit area) Making Beautiful Maps

  7. Learn more! • ArcUser, Winter 2013 Making Beautiful Maps

  8. To display more than one variable simultaneously To allow for estimation of the degree or spatial pattern of cross-correlation between variables Effectiveness of a method is related to readability and accurate representation of the data The purpose of multivariate mapping Making Beautiful Maps

  9. Simultaneously depict magnitude of variables within homogeneous area for multiple map themes Bivariate mapping Trivariate mapping Cross-variable mapping Making Beautiful Maps

  10. Early examples Making Beautiful Maps

  11. Early examples Making Beautiful Maps

  12. http://www.census.gov/population/www/cen2000/atlas/pdf/censr01-103.pdfhttp://www.census.gov/population/www/cen2000/atlas/pdf/censr01-103.pdf Making Beautiful Maps

  13. Limitations Because the number of classes the human eye can distinguish is limited, cross-variable mapping is generally restricted to combinations of either two or three variables Appropriate symbol (color) selection is important for map readability Advantages This technique is useful for simultaneously displaying a few variables (two or three) Recommendations It is often useful to also provide separate maps of each of the variables shown on the bi- or trivariate map Cross-variable mapping Making Beautiful Maps

  14. Two ways to do this in ArcMap • Bivariate renderer • Use this to render the data on-the-fly • Use this to create a live legend (linked to the renderer) • Bivariate script tool • Use this to calculate the quantile classes in the feature class • Use the Match to Symbols in a Style renderer • Use the LegendMaker.mxd to make the legend Making Beautiful Maps

  15. Two ways to do this in ArcMap Exploration • Bivariate renderer • Use this to render the data on-the-fly • Use this to create a live legend (linked to the renderer) Presentation • Bivariate script tool • Use this to calculate the quantile classes in the feature class • Use the Match to Symbols in a Style renderer • Use the LegendMaker.mxd to make the legend Making Beautiful Maps

  16. Bivariate renderer • Download the .zip file and unzip it • Register the .dll Directory and name of the file Making Beautiful Maps

  17. Styles – based on Brewer’s color research Making Beautiful Maps

  18. Brewer’s Color Schemes • Diverging color schemes Brewer, Cynthia. 2005. Designing Better Maps,with permission form CaGIS and Esri Press Making Beautiful Maps

  19. Used to find intermediate colors http://meyerweb.com/eric/tools/color-blend/ Making Beautiful Maps

  20. Making Beautiful Maps

  21. ArcMap styles Making Beautiful Maps

  22. ArcMap styles Making Beautiful Maps

  23. Napoleon’s March on Moscow Kenneth Field Making Beautiful Maps

  24. Dasymetric mapping Kenneth Field Making Beautiful Maps

  25. Thank you… Please fill out the session evaluation First Offering ID: 1189 Second Offering ID: 2107 Online – www.esri.com/ucsessionsurveys Paper – pick up and put in drop box Making Beautiful Maps

  26. Making Beautiful Maps

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