FlowMapper.org: A web-based computational and visual framework for flow mapping and analysis
Topics: Geographic Information Science and Systems
, Cartography
, Spatial Analysis & Modeling
Keywords: flow mapping, movement data science, spatial interactions, visual analytics
Session Type: Virtual Paper Abstract
Day: Saturday
Session Start / End Time: 2/26/2022 09:40 AM (Eastern Time (US & Canada)) - 2/26/2022 11:00 AM (Eastern Time (US & Canada))
Room: Virtual 27
Authors:
Caglar Koylu, University of Iowa
Geng Tian, University of Iowa
Mary Windsor, University of Iowa
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Abstract
FlowMapper.org is a web-based computational and visualization framework for origin-destination flow mapping and analysis (https://flowmapper.org). FlowMapper has four major features that contribute to the advancement of existing flow mapping systems. First, users can upload and process their own data to design and share customized flow maps. The ability to save data, cartographic design and map elements in a project file allows users to easily share their data and/or cartographic design with others. Second, users can customize the flow line symbology by including options to change the flow line style, width, and coloring. FlowMapper includes algorithms for drawing curved line styles with varying thickness along a flow line, which reduces the visual cluttering and overlapping by tapering flow lines at origin and destination points. The ability to customize flow symbology supports different flow map reading tasks such as comparing flow magnitudes and directions and identifying flow and location clusters that are strongly connected with each other. Third, FlowMapper supports supplementary layers such as node symbol, choropleth, and base maps to contextualize flow patterns with location references and characteristics such as net-flow, gross flow, net-flow ratio, or a locational attribute such as population density. FlowMapper also supports user interactions to zoom, filter, and obtain details-on-demand functions to support visual information seeking about nodes, flows and regions. Finally, the web-based architecture of FlowMapper supports server-side computational capabilities to process, normalize and summarize large flow data to reveal natural patterns of flows.
FlowMapper.org: A web-based computational and visual framework for flow mapping and analysis
Category
Virtual Paper Abstract
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