Results

Below are some results that accompany several publications.

Generalizing Boston building footprints

These results accompany the paper A New Method for Subdivision Simplification with Applications to Urban-Area Generalization.

Results of simplification and generalization for the Boston metropolitan area can be found here:

Boston results

The file consists of eight pages, displaying the following:

  1. Input (295,787 components; 1,750,427 edges)
  2. Simplification (1,575,384 edges)
  3. Simplification (1,417,845 edges)
  4. Simplification (1,296,669 edges)
  5. Generalization (295,771 components; 1,575,384 edges)
  6. Generalization (215,792 components; 1,033,608 edges)
  7. Generalization (147,695 components; 753,499 edges)
  8. Generalization (66,802 components; 360,393 edges)

Note: This result is a PDF file of approximately 131 MB and 200 inches high. Some PDF viewers may not be able to cope with the paper size; Adobe Reader 9 and up should be able to display the result fairly quickly after downloading. The input is freely available as part of the Massachusetts Geographic Information System.

Results for a small subset of the above dataset, northern Roxbury, can be found here:

Roxbury results

The file consists of three pages, displaying the following:

  1. Input (2,192 components; 15,192 edges)
  2. Simplification (9,965 edges)
  3. Generalization (1,593 components; 8,071 edges)

Exploring curved schematization

These results accompany the paper Exploring Curved Schematization.

Results of our schematization algorithm can be found here:

Schematization results

The file consists of three pages, displaying the following:

  1. Languedoc-Roussillon (France) schematized in "regular" style with 50, 40, 30, 20, 10, and 8 arcs
  2. Greece (mainland) schematized in both "flat" and "curvy" style with 25 and 10 arcs
  3. Southeast Asia schematized in "flat", "regular", and "curvy" style with 30 arcs