[postgis-users] Finding the buffer of two points

[Supunmali Ahangama]

I am using pgrouting. But i want to know how to segment the whole area in to
set of segments so only the edges in required segment will be considered in
finding the optimal path.



Fred Lehodey wrote:
> 
> Hi,
> 
> pgRouting:
> http://pgrouting.postlbs.org
> 
> Fred
> 
> 
> On Tue, Aug 11, 2009 at 11:48 AM, Supunmali Ahangama
> <supunmali7 at gmail.com>wrote:
> 
>>
>> Hi,
>>
>> I have two points A and B located in a large region. I need to find the
>> optimal path between those 2 points. Without considering the whole area
>> (all
>> the edges), can I consider only a segment that will be required to find
>> the
>> optimal path. As all the edges (far away roads in other cities) will not
>> be
>> required to find the optimal path between two points in a city. If all
>> are
>> considered it will be a waste.
>>
>> What is the possible function to use and how to solve my issue?
>>
>> Hope to hear a reply soon. Thanks
>> --
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>>
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