[pgrouting-dev] Time dependent data and input format

[Jay Mahadeokar]

Hi all,

I was looking at ways to optimise the tdsp implementation.

Currently, if the time-interval is suppose 24, (24 hours) and the travel
time expected is around 60 hours, then the tdsp-wrapper query retrieves
total 60 intervals and the data is repeated for the 24 hour intervals. (I
hope what i am trying to say is clear).

This is unnecessary space wastage. So, I edited the weight_map class to
accommodate a variables is_cyclic and the cycle_interval, which will keep
track of the cyclic nature of the data. So, actually only the 24 hour data
will be fed to weight map and then it will be reused in cycles.

Because of the good design, I guess this has scaled up really nice and there
is no need to modify actual core tdsp. Just the weight_map's
get_travel_time() function and the wrapper plsql function needed to be
altered.

Now, in the main query, I am thinking of adding one more boolean variable -
is_cyclic which will be enabled if the data is cyclic in nature.  Should we
keep this? Or we should assume that the data will be always cyclic.
Any other views on the same are welcome.

On Thu, Jul 28, 2011 at 8:32 PM, Daniel Kastl <daniel at georepublic.de> wrote:

> If possible I would like to use the same for testing as PostGIS:
> http://trac.osgeo.org/postgis/wiki/DevWikiCUnit
> http://trac.osgeo.org/postgis/wiki/DevWikiMain#PatchSubmissionGuidelines
>
> Except there are good arguments to do it a different way.
>
> Daniel
>
>
>
>
>
> On Thu, Jul 28, 2011 at 6:53 PM, Kishore Kumar <justjkk at gmail.com> wrote:
>
>> Hi,
>>
>> Updated the wiki page and added this:
>>
>>
>> https://github.com/pgRouting/pgrouting/wiki/Automated-Testing-(Unit-Tests)#wiki-SQL_Testing
>>
>> Looking for improvements in the workflow.
>>
>> Regards,
>> J Kishore kumar.
>>
>> On Thu, Jul 28, 2011 at 2:52 PM, Jay Mahadeokar
>> <jai.mahadeokar at gmail.com> wrote:
>> >
>> >
>> > On Thu, Jul 28, 2011 at 2:47 PM, Kishore Kumar <justjkk at gmail.com>
>> wrote:
>> >>
>> >> Hi,
>> >>
>> >> The testing framework currently doesn't have a proper documentation
>> >> except the somewhat readable python code. I am also not sure what
>> >> level of documentation should suffice. Is the python testing framework
>> >> going to stay or should we move to c?
>> >>
>> >
>> > I am not sure about others, but I have not worked with python before.
>> So, I
>> > would love to go with C if given a choice!
>> >
>> >>
>> >> Thanks & Regards,
>> >> J Kishore kumar.
>> >>
>> >> On Tue, Jul 26, 2011 at 4:40 AM, Daniel Kastl <daniel at georepublic.de>
>> >> wrote:
>> >> >> Daniel, Anton, is there anything specific that I need to do with
>> >> >> regards
>> >> >> to the project, so that it can be bundled with the pgRouting 2.0?
>> >> >> Currently
>> >> >> I am using a modified CMake file[2], and not compiling the test
>> >> >> framework.
>> >> >> Till now, I have not worked with this testing framework designed by
>> >> >> Kishore
>> >> >> (right?) so should I read any docs that will get me introduced with
>> it?
>> >>
>> >> > Sorry, the test framework I don't have a clear opinion yet. I think
>> it's
>> >> > Kishore's proposed testing but anyone is free to make suggestions how
>> to
>> >> > improve it.
>> >> _______________________________________________
>> >> pgrouting-dev mailing list
>> >> pgrouting-dev at lists.osgeo.org
>> >> http://lists.osgeo.org/mailman/listinfo/pgrouting-dev
>> >
>> >
>> >
>> > --
>> > Regards,
>> > -Jay Mahadeokar
>> >
>> >
>> > _______________________________________________
>> > pgrouting-dev mailing list
>> > pgrouting-dev at lists.osgeo.org
>> > http://lists.osgeo.org/mailman/listinfo/pgrouting-dev
>> >
>> >
>> _______________________________________________
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>>
>
>
>
> --
> Georepublic UG & Georepublic Japan
> eMail: daniel.kastl at georepublic.de
> Web: http://georepublic.de
>
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>
>


-- 
Regards,
-Jay Mahadeokar
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