Author Topic: Offline navigation - GraphHopper - preparation  (Read 85633 times)

Offline Bucky Kid

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Re: Offline navigation - GraphHopper - preparation
« Reply #240 on: June 18, 2018, 13:16:55 »
Is it somehow possible to generate single custom .pbf file based on own region in order to seamlessly cross the borders?
 

Offline develar

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Re: Offline navigation - GraphHopper - preparation
« Reply #241 on: June 18, 2018, 13:49:19 »
> generate single custom .pbf file based on own region in order to seamlessly cross the borders?

You can specify required for you countries and I will add specified region to https://graphhopper.develar.org

In general, you need to draw wanted region using http://geojson.io, download europe.pbf from some public  source (http://download.geofabrik.de/index.html),  and then

```
osmium extract --overwrite --config=extracts.json --strategy=smart europe-latest.osm.pbf
```

where extracts.json something like https://github.com/develar/gh-routing-data/blob/master/configs/extracts.json

and then build graph for result pbf file.

Since Locus is so awesome, I think it is not good that users need to do such low-level tasks to enjoy offline navigation, that's why I suggest you to file issue to https://github.com/develar/gh-routing-data/issues and I will add wanted region to provided list (main problem not first import, but keep it up to date).
 
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Offline menion

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Re: Offline navigation - GraphHopper - preparation
« Reply #242 on: June 25, 2018, 01:45:15 »
@develar
firstly, really nice work. I'm sure, many users appreciate it.

Just published version 0.7 of GH add-on.
Main change: using latest stable GH API 0.10
Ideas, wishes, problems
Advanced topics, public discussion, sharing of knowledges, testing beta versions: you're here!
 
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Offline Bucky Kid

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Re: Offline navigation - GraphHopper - preparation
« Reply #243 on: June 25, 2018, 07:20:16 »
@menion: I can't find the updated version, is it still here?
https://nas.asamm.com/share.cgi?ssid=0GmHJnN

@develar: thanks for the method, my region is specific and not aligned exactly on country borders, so there will be probably a small target, and I use different set of wehicles
« Last Edit: June 25, 2018, 07:46:46 by Bucky Kid »
 

Offline develar

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Re: Offline navigation - GraphHopper - preparation
« Reply #244 on: June 25, 2018, 08:15:55 »
 

Offline menion

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Re: Offline navigation - GraphHopper - preparation
« Reply #245 on: June 25, 2018, 08:51:52 »
Ah thanks, I've updated the first post and hope it is ok for you @develar, that I pointed users directly on your web server.
Ideas, wishes, problems
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Offline Bucky Kid

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Re: Offline navigation - GraphHopper - preparation
« Reply #246 on: June 25, 2018, 19:08:31 »
Thanks develar for updated link, do you know where to get Windows binaries for osmium tool?
I am unable to compile from sources.
 

Offline develar

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Re: Offline navigation - GraphHopper - preparation
« Reply #247 on: June 25, 2018, 19:16:52 »
@Bucky Kid Please see https://ci.appveyor.com/api/buildjobs/skx61j610842y80u/artifacts/osmium_Release_x64.zip

Issue https://github.com/osmcode/osmium-tool/issues/59 is opened. I don't test it (I use macOS).

> I am unable to compile from sources.

Process is not easy. That's why I created http://graphhopper.develar.org/ and any user can request any region to be added to avoid low-level things.
 
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Offline Bucky Kid

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Re: Offline navigation - GraphHopper - preparation
« Reply #248 on: June 26, 2018, 11:47:50 »
osmium extract --overwrite --config=extracts.json --strategy=smart europe-latest.osm.pbf
Finally got everything to work, but this is not working, instead I had to uise

osmium extract --polygon extracts.json ....

or also works

osmium merge -o my-europe.osm.pbf country1-latest.osm.pbf country2-latest.osm.pbf country3-latest.osm.pbf ...

however anyway I brush up against problem of memory limitation so wasn't able to generate combined routing data even only for 3 countries, so seamless routing will only be possible by adding support for automatic region selection in graphopper app.
 

Offline develar

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Re: Offline navigation - GraphHopper - preparation
« Reply #249 on: June 26, 2018, 12:07:30 »
@Bucky Kid

> however anyway I brush up against problem of memory limitation so wasn't able to generate combined routing data even only for 3 countries, so seamless routing will only be possible by adding support for automatic region selection in graphopper app.

`export JAVA_OPTS="-Xmx15g -Xms10g -XX:+UseG1GC"`

where `15g` it is `available RAM - 1GB` (1GB for system). Change `-Xms10g`  if you don't have 10GB.

and if your machine doesn't have enough memory (estimate: num of encoders * size of input map), use MMAP instead of RAM_STORE.

Or you can stop wasting your time and file issue to https://github.com/develar/gh-routing-data/issues/new ;)
« Last Edit: June 26, 2018, 12:09:12 by develar »
 

Offline develar

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Re: Offline navigation - GraphHopper - preparation
« Reply #250 on: June 26, 2018, 12:12:35 »
About memory on mobile — Locus add-on correctly set MMAP instead of RAM_STORE. It works very fast because provided graphs by http://graphhopper.develar.org/ are sorted. Yes, there is penalty, but insignificant — you can build europe wide route (900 km) in _several seconds_. The only downside of large regions — disk space (e.g. de-at-ch takes 5GB). But SD cards are cheap nowadays :)
« Last Edit: June 26, 2018, 12:15:03 by develar »
 

Offline Bucky Kid

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Re: Offline navigation - GraphHopper - preparation
« Reply #251 on: July 02, 2018, 06:36:21 »
Thanks for all the input. Combined region now compiles successfully. There remains one issue and that is when I use sorting (graph.do_sort), the compilation ends up with error

Code: [Select]
Exception in thread "main" java.lang.AssertionError: The turn cost storage must be initialized only once.
        at com.graphhopper.storage.TurnCostExtension.init(TurnCostExtension.java:60)
        at com.graphhopper.storage.BaseGraph.<init>(BaseGraph.java:144)
        at com.graphhopper.storage.GraphHopperStorage.<init>(GraphHopperStorage.java:83)
        at com.graphhopper.util.GHUtility.newStorage(GHUtility.java:281)
        at com.graphhopper.GraphHopper.postProcessing(GraphHopper.java:854)
        at com.graphhopper.GraphHopper.process(GraphHopper.java:671)
        at com.graphhopper.GraphHopper.importOrLoad(GraphHopper.java:640)
        at com.graphhopper.tools.Import.main(Import.java:50)

If I turn off turncosts for calculation, the sorted data compile, so the two features probably cannot be used concurrently
 

Offline develar

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Re: Offline navigation - GraphHopper - preparation
« Reply #252 on: July 02, 2018, 08:23:50 »
You cannot use turn costs for now. https://github.com/graphhopper/graphhopper/issues/1401 I didn’t yet publish PR to Locus add-on.
 

Offline Andy Tover

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Re: Offline navigation - GraphHopper - preparation
« Reply #253 on: September 18, 2018, 00:19:01 »
Is the GraphHopper offline routing "project" dead? None of the links on develar.org for any of the routing files work. Any other options for offline routing at this point besides BRouter?
 

Offline menion

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Re: Offline navigation - GraphHopper - preparation
« Reply #254 on: September 21, 2018, 18:54:12 »
Hello,
should not be, To be true, do not know why data from @develar server are not downloadable anymore.

You still may download add-on's APK and compile routing data on your own.
Ideas, wishes, problems
Advanced topics, public discussion, sharing of knowledges, testing beta versions: you're here!