Visualized OSRM Debugging Tool

[wangyoucao577]

As we discussed in #64, there's already some tools can help us for OSRM debugging, e.g.

• osrm-frontend: show routes, guidances
• Debug map of osrm-frondend: show speeds for all ways

But for OSRM debugging, they're not enough. At least we want to see information of OSRM compiled mapdata.

Let's record and discuss our expectation/requirements here:

Requirements/Expectation:

First of all, we could have a frontend tool for visualization and a backend microservice to provide data. Every operation on frontend tool will get real data from the backend service.
First question: let's have name for both of them.

• frontend tool

  • web based tool (osrm-frontend is a extremely good example)
  • can select node/way by click on the map, can show details of selected node/way/relation
  • can show each edge's weight/duration of a route

• backend microservice

  • restful API for frontend call
  • can load compiled OSRM mapdata

[wangyoucao577]

For the backend mircoservice, the most important task is to understand the compiled mapdata structure. The OSRM compiled mapdata looks store as plain structure in file, it may not that difficult to understand them. We could evaluate whether it's possible.

[CodeBear801]

Inside Telenav, we have tools which could:

• For given wayid, we could show all tags related
• Will also load all relations on the way's two end points, such as restrictions, naturalguidances
• Display endpoint's ID for this way, which is used for building graph connectivity

In OSRM, we want to have similar capability, but one important point is original way from source data is not existed in query graph. Below are some functionality I feel is helpful:

• Give a OSRM node, we could get its original pbf nodeid/lat,lon
  • Give a pbf nodeid we could try to find OSRM node id
• Give a OSRM edge, we could get related wayids/lat,lon/tags, etc
  • Give a wayid, we could get related OSRM edge id(s)
  • speed, cost, and how the result is calculated, such as static information like lua profile, dynamic information like live traffic, historical speed