[SoC] GSoC 2023 - Week-4 Report - Improving pgr_withPointsDD

[Yige Huang]

Hello everyone,

Here is my fourth weekly report (Jun 19 - Jun 28):

*What did I get done this week?*


   - Work on the feedback last week.
   - Ask for advice [1].
   - Create basic skeleton for calculatingdepth, more details can be found
   [2].


   - *What do I plan on doing next week?*
      - Continuing the work of adding `depth` output column.
      - Referring PLPGSQL documentation and making a check for `driving
      side` pram on SQL level.


   - *Am I blocked on anything?*

Due to the lack of understanding of pgRouting's graph, edge, node and other
related data structures and visitor, my coding work is somewhat difficult.
But I will learn about them by reading the source code and constantly
debugging experiments. Hope to finish the work of adding the new column
next week without a hitch.


PR of this week can be found in [2].
The wiki page with the weekly report can be found in [3].
The repository can be found in [4].

Any feedback, comments, and suggestions are welcome.

Best regards,
Yige Huang

[1]
https://github.com/pgRouting/GSoC-pgRouting/pull/303#discussion_r1233475483
[2] https://github.com/pgRouting/GSoC-pgRouting/pull/309
[3]
https://github.com/pgRouting/pgrouting/wiki/GSoC-2023-Improving-Parameters-and-Standardizing-Results-in-pgr_withPointsDD-Function-for-pgRouting#week-4-report
[4] https://github.com/squarege/GSoC-pgRouting
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