map gps coordinates with CGI/ (java or Perl)

[P Kishor]

Joel,

I don't have a specific suggestion for you, but I offer the following
to think about... You asked --

> > I'd like to map GPS lat/long coordinates dynamically through CGI

First, what does "dynamically" mean?

You will have to somehow transfer the lon/lat from the GPS to the
computer that hosts MapServer. So, that is your first task.

Then you will have to convert the lon/lat into x,y point features that
MapServer can read. That is your second task.

Then you will have to create an web app that refreshes every few
seconds in order to be qualified as "dynamically." That is your final
task.

Your best bet might be to send the GPS stream into a PostGIS database,
and set up a MapServer map file that reads that data source. Write an
Ajax-y app that refreshes the map without touching the rest of the
cruft, and you have a dynamic app.

When you get it all hooked up and working, I would love to see it and
happily plagiarize it ;-). Better yet, you can write up a nice how-to,
and attach your app for the rest of us to benefit.

Seriously, search the list archives. If I recall correctly, this kind
of stuff has been asked, and done before.

On 7/28/06, Joel Thompson <joel at rhinosystemsinc.com> wrote:
> Hi Guys - sorry to bug you again, but can someone give me some general
> direction?
>
> 1) should I try to manipulate the map file directly through the CGI env?
> If so, what would a sample map file look like to that showed, say Cities
> and the lat/lon coordinates that I provide to show a route...?
>
> 2) Or do I have to use CGI (perl, php...etc.) w/ its API into the
> MapScript to execute this some how? Not sure at all how to do this, so a
> simple sample would be very helpful.
>
> 3) or is there some other CGI type tools that does this for me already?
> IE. Just pass in a list of lat/lon pairs and it would map it out for me?
>
>
> Thanks for you help... I really appreciate it,
> Joel
>
> Joel Thompson wrote:
>
> >
> > Hello,
> >
> > I'd like to map GPS lat/long coordinates dynamically through CGI
> > (preferred JAVA,perl, php, in that order) - I am new to MapServer...
> > Can you help me to get in the right direction with this? is there any
> > add-on tools that do this? or is is just done through the .map w/ html
> > template architecture... where the CGI is used to create the HTML file???
> > Any samples would be nice... Thanks in advanced.
> >
> > -Joel
>


-- 
Puneet Kishor http://punkish.eidesis.org/
Nelson Inst. for Env. Studies, UW-Madison http://www.ies.wisc.edu/
Open Source Geospatial Foundation https://edu.osgeo.org/