Proportional Transportation Distance
Demo
A demo is available that demonstrates some aspects. You can read the description of the user interface first or directly move on to the demo.
Vantage space method
The first demo uses a lot of precomputed data. The distance between every pair of fishes is precomputed. There is a second demo reduces the need for precomputation drastically. Here we compute the distance of every fish to a fixed number of fishes. Those selected fishes are called vantage objects. Typically there are less than 10 vantage objects. The user interface is similar to the first demo.