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Posted to solr-user@lucene.apache.org by Bill Bell <bi...@gmail.com> on 2011/03/01 04:03:12 UTC
Re: Distances in spatial search (Solr 4.0)
Use sort with geodist() to sort by distance.
Getting the distance returned us documented on the wiki if you are not using score. see reference to _Val_
Bill Bell
Sent from mobile
On Feb 28, 2011, at 7:54 AM, Alexandre Rocco <al...@gmail.com> wrote:
> Hi guys,
>
> We are implementing a separate index on our website, that will be dedicated
> to spatial search.
> I've downloaded a build of Solr 4.0 to try the spatial features and got the
> geodist working really fast.
>
> We now have 2 other features that will be needed on this project:
> 1. Returning the distance from the reference point to the search hit (in
> kilometers)
> 2. Sorting by the distance.
>
> On item 2, the wiki doc points that a distance function can be used but I
> was not able to find good info on how to accomplish it.
> Also, returning the distance (item 1) is noted as currently being in
> development and there is some workaround to get it.
>
> Anyone had experience with the spatial feature and could help with some
> pointers on how to achieve it?
>
> Thanks,
> Alexandre
Re: Distances in spatial search (Solr 4.0)
Posted by William Bell <bi...@gmail.com>.
See http://wiki.apache.org/solr/SpatialSearch and yest use sort=geodist()+asc
This Wiki page has everything you should need\.
On Tue, Mar 1, 2011 at 3:49 PM, Alexandre Rocco <al...@gmail.com> wrote:
> Hi Bill,
>
> I was using a different approach to sort by the distance with the dist()
> function, since geodist() is not documented on the wiki (
> http://wiki.apache.org/solr/FunctionQuery)
>
> Tried something like:
> &sort=dist(2, 45.15,-93.85, lat, lng) asc
>
> I made some tests with geodist() function as you pointed and got different
> results.
> Is it safe to assume that geodist() is the correct way of doing it?
>
> Also, can you clear up how can I see the distance using the "_Val_" as you
> told?
>
> Thanks!
> Alexandre
>
> On Tue, Mar 1, 2011 at 12:03 AM, Bill Bell <bi...@gmail.com> wrote:
>
>> Use sort with geodist() to sort by distance.
>>
>> Getting the distance returned us documented on the wiki if you are not
>> using score. see reference to _Val_
>>
>> Bill Bell
>> Sent from mobile
>>
>>
>> On Feb 28, 2011, at 7:54 AM, Alexandre Rocco <al...@gmail.com> wrote:
>>
>> > Hi guys,
>> >
>> > We are implementing a separate index on our website, that will be
>> dedicated
>> > to spatial search.
>> > I've downloaded a build of Solr 4.0 to try the spatial features and got
>> the
>> > geodist working really fast.
>> >
>> > We now have 2 other features that will be needed on this project:
>> > 1. Returning the distance from the reference point to the search hit (in
>> > kilometers)
>> > 2. Sorting by the distance.
>> >
>> > On item 2, the wiki doc points that a distance function can be used but I
>> > was not able to find good info on how to accomplish it.
>> > Also, returning the distance (item 1) is noted as currently being in
>> > development and there is some workaround to get it.
>> >
>> > Anyone had experience with the spatial feature and could help with some
>> > pointers on how to achieve it?
>> >
>> > Thanks,
>> > Alexandre
>>
>
Re: Distances in spatial search (Solr 4.0)
Posted by Alexandre Rocco <al...@gmail.com>.
Hi Bill,
I was using a different approach to sort by the distance with the dist()
function, since geodist() is not documented on the wiki (
http://wiki.apache.org/solr/FunctionQuery)
Tried something like:
&sort=dist(2, 45.15,-93.85, lat, lng) asc
I made some tests with geodist() function as you pointed and got different
results.
Is it safe to assume that geodist() is the correct way of doing it?
Also, can you clear up how can I see the distance using the "_Val_" as you
told?
Thanks!
Alexandre
On Tue, Mar 1, 2011 at 12:03 AM, Bill Bell <bi...@gmail.com> wrote:
> Use sort with geodist() to sort by distance.
>
> Getting the distance returned us documented on the wiki if you are not
> using score. see reference to _Val_
>
> Bill Bell
> Sent from mobile
>
>
> On Feb 28, 2011, at 7:54 AM, Alexandre Rocco <al...@gmail.com> wrote:
>
> > Hi guys,
> >
> > We are implementing a separate index on our website, that will be
> dedicated
> > to spatial search.
> > I've downloaded a build of Solr 4.0 to try the spatial features and got
> the
> > geodist working really fast.
> >
> > We now have 2 other features that will be needed on this project:
> > 1. Returning the distance from the reference point to the search hit (in
> > kilometers)
> > 2. Sorting by the distance.
> >
> > On item 2, the wiki doc points that a distance function can be used but I
> > was not able to find good info on how to accomplish it.
> > Also, returning the distance (item 1) is noted as currently being in
> > development and there is some workaround to get it.
> >
> > Anyone had experience with the spatial feature and could help with some
> > pointers on how to achieve it?
> >
> > Thanks,
> > Alexandre
>