Kazimierz (Casey) Zaniewski Geography & Urban Planning University of Wisconsin-Oshkosh #NACIS2015
Flow Maps Kazimierz (Casey) Zaniewski Geography & Urban Planning University of Wisconsin-‐Oshkosh NACIS 2015
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Flow Maps • Types • History • Drawbacks • AlternaPve maps • Examples • SoSware
Types of Flow Maps
Brief History of Flow Maps Henry Harness (1837) Charles Minard (1863)
Drawbacks of Most Flow Maps Display limited amount of informaPon
Shape of Flow Lines
Shape of Flow Lines Straight Flow Lines
Shape of Flow Lines Curved Flow Lines
Radial Flow Map
Flow and ProporPonal Symbol Maps
DistribuPPve Flow Map
Network Flow Map
Flow Map CollecPons
Flow Maps: American Atlas
Flow Maps: French Atlas
ProporPonal Symbol Maps Instead of Flow Maps Migra7on from Russia, 1982-‐2007 Migra7on to Russia, 1982-‐2007
Examples of Flow Maps
World MigraPon Flows
Flow Map in MapViewer
Flow Map in Cartes et Données
Flow Map OpPons in PhilCarto