Freezing when processing some objects

[deevroman]

via #74 (comment)

The real reason is in the infinite loop, and not in the number of objects:

https://beakerboy.github.io/OSMBuilding/index.html?id=419266377

I set a logging breakpoint, and you can see that it is called a huge number of times:

I was trying to figure out and fix #80 and came across this issue. The infinite loop also causes a huge consumption of system memory.

[Beakerboy]

Is it possible there is something like, relation 1 includes a reference to relation 2, which references relation 1?

[deevroman]

It looks like things are much more interesting. It seems fullXmlData contains corrupted data:

https://www.openstreetmap.org/api/0.6/way/275653177.json I continue debugging

[deevroman]

https://www.openstreetmap.org/api/0.6/way/275653177.json = [2803111355, 442603832, 2803111359]

https://www.openstreetmap.org/api/0.6/way/275653176.json = [2803111357, 2803111359]

This situation occurred in my slightly modified version, but the problem will still be in the original w419266377. I'm unlikely to fix combineWays, but expect a PR for #80. I'll add an extra load of way that wasn't loaded with /map, and that will avoid incorrect data.

[deevroman]

@Beakerboy have you tried to implement this algorithm in combineWays()? https://test.wiki.openstreetmap.org/wiki/Relation:multipolygon/Algorithm

upd: I will try to implement part of the required part of this algorithm

upd2: https://osm.org/relation/17073315 madness. Other viewers fot this:
https://3dcheck.zkir.ru/RUS_TOP/W419266377.html
https://demo.f4map.com/#lat=55.1777681&lon=61.2844611&zoom=20&camera.theta=57.032&camera.phi=-4.011

upd3: