[GraphHopper] App crashed getting response from GraphHopperAPI.rout(request)
Peter K
peathal at yahoo.de
Mon Apr 29 06:30:31 UTC 2013
AStar can be used like it is described in the wiki:
https://github.com/graphhopper/graphhopper/wiki/Low-Level-API
Instead of DijkstraSimple use AStar
But be aware that the normal algorithms will require more RAM than the
contraction hierarchy* optimized ones.
So only mid-sized countries are possible on a mobile platform as our
AStar still is exact and does not e.g. throw away too-far-away points to
reduce memory consumption.
Regards,
Peter.
*
http://lists.openstreetmap.org/pipermail/graphhopper/2013-April/000057.html
> Yes the demo app is working fine. Basically i want to integrate it in
> my Android app. I want to develop an Android app which gives offline
> navigation. But now i am trying to run the demo code first. And one
> more thing i want to ask there is AStar.java file upload
> at https://github.com/graphhopper/graphhopper/blob/master/src/main/java/com/graphhopper/routing/AStar.java
>
>
> can i use this algorithm for android app offline route planning.?????
>
>
> On Sun, Apr 28, 2013 at 1:22 AM, Peter K <peathal at yahoo.de
> <mailto:peathal at yahoo.de>> wrote:
>
> Please let me know the error and what you changed to better guide
> you ...
>
>
> > Then i took two parts of the code
>
> You tried to integrate it in your own application? Is the demo app
> working for you? Try starting from there and iterate ...
>
>>
>> Now i don't know the implementation of GraphHopperAPI.rout(req)
>> so how can i figure this out.
>>
>
> But this is in the source code!?
>
>
> Regards,
> Peter.
>
>
>
>> I am trying to run the code Graphhopper-Android
>> from https://github.com/graphhopper/graphhopper-android using
>> berlin-gh graph file available
>> at https://code.google.com/p/graphhopper/downloads/list
>>
>> First i tried to load the .map file and it successfully loaded.
>> it showed the brelin's map
>>
>> Then i took two parts of the code
>> PrepareGraph()
>> calcPath()
>>
>> Prepare graph makes toast "*Finished loading graph. Touch to
>> route*" thats mean graph loaded successfully. in calcPath()
>> function App crashed at
>>
>> GHResponse resp = hopper.route(req); while getting response.
>>
>> where hopper is *GraphHopperAPI hopper*;
>> and for request i hard coded the lat lon from map.
>
>
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