[Xastir-dev] first cut at geocoder
J. Lance Cotton
joe at lightningflash.net
Tue Mar 30 14:24:30 EST 2004
Curt, WE7U wrote:
> On Tue, 30 Mar 2004, Derrick J Brashear wrote:
>>well, but then, do you store the stuff you do it against in shape files or
>>something else? and how do you keep it in memory? some library kit?
>
> I think we'd need to know which points are connected to which, and
> the distance for each line segment. Using that we could calculate
> the shortest path between points A and B. Trying to do this
> on-the-fly from shapefiles would be rather slow.
As a sort-of-side-note: If a user is using Shapefile maps and we use those
for determining the route... Couldn't we build a new shapefile map with just
the segments that were determined to be "the path" and store it in the tmp
dir and have Xastir draw it with a bright color and a width of n+2 where n
is the original width of the segment.
This doesn't have any bearing on finding the mapped path, but would that be
a relatively easy way to display the results of such a path search?
-Lance KJ5O
--
J. Lance Cotton, KJ5O
http://map.findu.com/kj5o-14
joe at lightningflash.net
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