Indiemapper tools
This presentation is the property of its rightful owner.
Sponsored Links
1 / 26

Indiemapper tools PowerPoint PPT Presentation


  • 118 Views
  • Uploaded on
  • Presentation posted in: General

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 .

Download Presentation

Indiemapper tools

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Indiemapper tools

Indiemapper tools


Indiemapper tools

http://indiemapper.com/


Why indiemapper

Why “indiemapper”?


Historical note

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.


Gis geographical information systems tool kit

GIS (Geographical Information Systems)tool-kit


Libraries shape files own maps

Libraries, shape files, own maps


To d ownload kml shp gpx files

…To download*.kml, *.shp та *.gpxfiles

*.shp makes life easier…


What is shp file

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!


Free libraries of shp files

  • 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:


Graphical tools in indiemapper

Graphical tools in Indiemapper


Projections perspective views of the earth

Projections (perspective views of the Earth)


Why projections

  • 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?


Different ways of visualization

Different ways of visualization


Cartograms

  • Re-sizes the global land masses according to which variable is mapped.

  • Isolates one variable and provides a different world view.

Cartograms


Indiemapper tools

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#


Proportional symbols

  • 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


Indiemapper tools

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


Choropleth

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


Indiemapper tools

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


Dot density

  • 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


Indiemapper tools

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


Combining data sets

  • Population of African countries and % of their population living with AIDS

Combining data sets

Map credits/source: https:[email protected]/8273784596/


Playing with intervals

  • 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


Export in svg jpeg png

Export in SVG, JPEG, PNG


Additional instruments for efficient use of indiemapper

  • 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!


Missing data in dbf file

  • 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!


  • Login