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This is a 1970s algorithm and implementation for displaying 3D prism maps showing data depending on geographic regions by raising a prism above each region. The program preprocessed the 2D map in advance so that new data could be displayed, with hidden surfaces removed, quickly. Titles include:

  1. bibtexsummary:[/wrf.bib,wrf-cga-82]
  2. bibtexsummary:[/wrf.bib,wrf-prism-hu]
  3. bibtexsummary:[/wrf.bib,fl-3gdds-78]