[pgrouting-users] TRSP

[Max Weninger]

Hi

You would need to change GraphDefinition.cpp like
Just "straight out of my brain" :)

Return 0 instead of -1
dont set err_msg

and add something like

*path = (path_element_t *) malloc(sizeof(path_element_t)));
*path_count = 1;

and set the attributes with "defaults" that you want
to use to "mark" this path as "empty"

(*path)[0].vertex_id = xxx;
(*path)[0].edge_id = yyy;
(*path)[0].cost = zzz;

regards

max

> To clarify:
> When I say "I would like to continue processing" I mean to say that I
> would like my plpgsql function to continue processing (the function
> that is calling into the turn_restrict_shortest_path).
> 
> On Wed, Jun 27, 2012 at 10:40 AM, Steve Horn <steve at stevehorn.cc>
> wrote:
> 
> > yeah, path with len==0 is another way to say it.
> >
> > On around line 423 of GraphDefinition.cpp the *err_msg variable is
> > assigned "Path Not Found" and a -1 is returned.
> >
> > This causes the plpgsql function to abort. Instead of aborting I
> > would like to continue processing.
> >
> >
> > On Wed, Jun 27, 2012 at 10:29 AM, Max Weninger
> > <max.weninger at gmail.com>wrote:
> >
> >> Hi
> >>
> >> What do you actually mean with "no path"
> >> Do you mean a path with len==0?
> >>
> >> regards
> >>
> >> max
> >>
> >> On Wed, 27 Jun 2012 10:19:03 -0400
> >> Steve Horn <steve at stevehorn.cc> wrote:
> >>
> >> > Hey Stephen,
> >> > I am working with the TRSP code. Instead of returning an error
> >> > when the path cannot be found, I was wondering how difficult it
> >> > would be to change the function to return no path result instead?
> >>
> >> _______________________________________________
> >> Pgrouting-users mailing list
> >> Pgrouting-users at lists.osgeo.org
> >> http://lists.osgeo.org/mailman/listinfo/pgrouting-users
> >>
> >
> >
> >
> > --
> > Steve Horn
> >
> >
> 
>