I am attempting to find the shortest/fastest routes from GPS point to GPS point as described in this post: Create closest point on multilinestring to use in shortest_path()

I have seen many solutions like the ones presented to that question, where the answer is to create "virtual" points or to create points in a temp table, then run pgRouting against the original data and the virtual data.

How is this accomplished? I can't seem to find any examples of people using virtual points like they are pitched in the linked question's answers.


I found an example of using temp tables to add points to a network here: https://github.com/alaw005/pgrouting_functions/blob/master/my_generate_network_with_additional_points.sql

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