[GraphHopper] Load a custom edge weight

[Peter]

> In my case CH is turned off and I still get this exception when I
> issue a routing request. Do you think is it possible?

This should not happen - maybe this was a bug. Do you explicitly specify
the vehicle in the request?
And is it still the case with the current master?

Peter

>
>> Regards,
>> Peter
>>
>> On 02.03.2015 22:44, Rossano Schifanella wrote:
>>> Peter,
>>>
>>> thanks for the hint, I used the location index to find the closest
>>> edge and it worked. I have a couple of additional questions:
>>>
>>> - After having implemented a custom weight, I'm wandering if it's
>>> possible to set a threshold in the length or travel time over which a
>>> tentative path is discarded (e.g., using astarbi)? Note that the
>>> implemented custom weight doesn't use distance nor speed as measure.
>>> - What is the meaning of the method getMinWeight when, for example,
>>> astarbi is used?
>>> - Is it possible to specify more than a value for the property
>>> graph.flagEncoders (e.g., BIKE, FOOT) ? When I tried I got this
>>> exception: java.lang.IllegalStateException: Multiple encoders are
>>> active. cannot return one:bike,foot
>>> What am I doing wrong?
>>>
>>> Thanks a lot!
>>> Regards,
>>> Rossano
>>>
>>>
>>>
>>> On 2/28/15 9:21 PM, Peter wrote:
>>>> Hi Rossano,
>>>>
>>>> while import you'll have to store the mapping from osm node to
>>>> internal
>>>> node, then you can easily do what you proposed. A more generic
>>>> solution
>>>> would be to use GPS locations instead of OSM nodes to specify the
>>>> weighting and then using the location index to lookup the closest
>>>> edge.
>>>>
>>>> Then you have the edgeId to weight mapping which you could either put
>>>> into the edge directly, or just use a double array where the edgeId is
>>>> the index. Or use DataAcess which is a storable array for many
>>>> purposed.
>>>>
>>>> Regards,
>>>> Peter
>>>>
>>>>
>>>> On 27.02.2015 23:08, Rossano Schifanella wrote:
>>>>> Hi there,
>>>>>
>>>>> suppose I have an external file with this format
>>>>>
>>>>> OSM_NODE_ID1    OSM_NODE_ID2    w1
>>>>>
>>>>> where OSM_NODE_ID1 and OSM_NODE_ID2 are two OSM node ids and w1 is a
>>>>> double that represents a custom weight. What I'd like to do is:
>>>>>
>>>>> 1) Find the edge gh_edge_id in the GraphHopper internal data
>>>>> structure
>>>>> that corresponds to the the edge OSM_NODE_ID1->OSM_NODE_ID2
>>>>>
>>>>> 2) Create a data structure that maps the relation
>>>>>
>>>>> gh_edge_id    w1
>>>>>
>>>>> in a way that at runtime in a custom Weighting class I can retrieve
>>>>> the value w1 when the corresponding edge is visited.
>>>>>
>>>>> Which is the best approach to tackle this problem?
>>>>>
>>>>> Thanks a lot for your support.
>>>>>
>>>>> Rossano
>>