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Indiemapper tools

Indiemapper tools. http://indiemapper.com/. Why “indiemapper” ?. Historical note. It was developed as a tool useful to map -makers, whether casual or professional , who may not need advanced functions of modern GIS, but do want a multitude of symbology and design options .

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Indiemapper tools

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  1. Indiemapper tools

  2. http://indiemapper.com/

  3. Why “indiemapper”?

  4. Historical note • It was developed as a tool useful to map-makers, whether casual or professional,who may not need advanced functions of modern GIS, but do want a multitude of symbology and design options. • First version was presentedin 2008.

  5. GIS (Geographical Information Systems)tool-kit

  6. Libraries, shape files, own maps

  7. …To download*.kml, *.shp та *.gpxfiles *.shp makes life easier…

  8. Nontopological format for storing the geometric location and attribute information of geographic features: • .shp – form • .shx – index • .dbf – attribute What is *.shpfile? Each of the component files of a shapefile is limited to 2 GB each!

  9. http://www.diva-gis.org/gdata - maps for any country in the world http://www.naturalearthdata.com/downloads/ - world political map • http://geocommons.com/ - lots of different patterns • http://www.mapmakerdata.co.uk.s3-website-eu-west-1.amazonaws.com/library/stacks/Africa/index.htm - Africa map library Free libraries of *.shpfiles:

  10. Graphical tools in Indiemapper

  11. Projections (perspective views of the Earth)

  12. Projections = coordinate system. • Projection converts coordinates on the round Earth to coordinates on the flat map. • Each projection has distortions. • Choice of the “appropriate” projection is determined by objectives. Why projections?

  13. Different ways of visualization

  14. Re-sizes the global land masses according to which variable is mapped. • Isolates one variable and provides a different world view. Cartograms

  15. Deaths due to HIV infections that progressed to AIDS – 2002 Territories are sized in proportion to the absolute number of people who died from HIV/AIDS in one year. Map credits/source: WorldMapper, Map No. 374; http://www.worldmapper.org/display.php?selected=374#

  16. Size of symbol is proportional to size of data value. • The larger the symbol, the “more” of something exists at a certain location. Proportional Symbols

  17. Map credits/source: created by K. Tummino (4/21/08), http://personal.frostburg.edu/kctummino0/HIV_prisons_square.jpg

  18. Choros (place) plethos (filled) • When to use: • Data are attached to enumeration units (countries, provinces) • Data are standardized to show rates or ratios • Never use with raw data/counts! Choropleth

  19. Map credits/source: WHO (2011), http://gamapserver.who.int/mapLibrary/Files/Maps/HIV_adult_prevalence_2011.png

  20. Describes density over area • 1 dot = some quantity of data value • one-to-one dot density maps • one-to-many dot density maps • You can map raw data/counts! Dot Density

  21. Map credits/source: Division of HIV/AIDS Prevention, National Center for HIV, STD, and TB Prevention (NCHSTP), Centers for Disease Control.

  22. Population of African countries and % of their population living with AIDS Combining data sets Map credits/source: https://www.flickr.com/photos/90884073@N07/8273784596/

  23. Methods to create intervals in Indiemapper: • manually • equal intervals (ignores data distribution; unequal number of observations in each interval) • “optimal” breaks (takes into account data distribution) • quartiles (top 25%, 25% above middle, 25% below middle, bottom 25%; equal number of observations are in each interval) • standard deviations (mean+1s, mean-1s) Playing with intervals

  24. Export in SVG, JPEG, PNG

  25. OpenOffice – editing of *.dbffiles1 Steps: • Open *.dbffile in OpenOffice. • Add a new column with an indicator of interest. • Save the file in the same format (*.dbf) • Inkscape – graphical tool: correction of legends, text notes etc. Export your map as an *.svg file and open it in Inkscape. Use Inkscape to improve the look of the map. Additional instruments for efficient use of indiemapper 1 If you use Excel, unless you have Excel 2003 or earlier, it will not save .dbf files – you will have to export to Access first!

  26. If table contains missing cells, *.dbf usuallyassigns “0” value (starting level of the 1st rank). • It is common to assign “impossible” values like “-99”. • So, we can use some different shading for this data. Missing data in *.dbffile 1 If you use Excel, unless you have Excel 2003 or earlier, it will not save .dbf files – you will have to export to Access first!

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