Fast flow-based algorithm for creating density-equalizing map projections.

ABSTRACT: Cartograms are maps that rescale geographic regions (e.g., countries, districts) such that their areas are proportional to quantitative demographic data (e.g., population size, gross domestic product). Unlike conventional bar or pie charts, cartograms can represent correctly which regions share common borders, resulting in insightful visualizations that can be the basis for further spatial statistical analysis. Computer programs can assist data scientists in preparing cartograms, but developing an algorithm that can quickly transform every coordinate on the map (including points that are not exactly on a border) while generating recognizable images has remained a challenge. Methods that translate the cartographic deformations into physics-inspired equations of motion have become popular, b

SUBMITTER: Gastner MT 

PROVIDER: S-EPMC5877977 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature