On 1/28/08, Sean Gillies <[EMAIL PROTECTED]> wrote: > David Asbury wrote: > > > > I've got a little mashup I've been working on in Google Earth/Maps and > > I'm stuck. The GE and KML Developer support forums have come up dry so > > I'm hoping someone here has an idea about how I can work it out. > > > > I have created placemarks for several USGS stream gauges in my watershed > > of interest and linked each placemark's balloon to the webpage of their > > respective site. On said webpage are GIFs of graphs showing the stream's > > discharge as recorded by the gauge. These GIFs are dynamically created > > and update every 15 minutes. So now, everything looks great. Click on > > the placemark icon, up pops the most recent graph - click on the graph > > and you're redirected to the main page where you can get a lot more > > information. > > > > The problem is that each GIF's URL is coded with the date, so every 24 > > hours the links to the graphs break. Actually there are two dates in the > > URL one for the day that the data on the chart begins and a second for > > when it ends. Like so - <YYYYMMDD..YYYYMMDD>. You can customize the > > graph from the website to display anywhere from 1 to 31 days of data. > > The default is 7 days and that's what I'd like to show. > > > > So what I need is a bit of script that can either increment the date > > (and subtract 7 to get the first date) and insert it into a URL, or grab > > the date from somewhere, format it as YYYMMDD, subtract 7 and create a > > dynamic URL. > > > > I'm guessing scripts won't work within the GE placemark description > > boxes themselves (though I don't know), so I may need to setup a static > > link in the placemark to a page where I've created this dynamic image. > > > > > > David, > > Either implement a redirect from "current.gif" to "YYYYMMDD.gif" in the > web server (mod_rewrite and a perl script, along with appropriate > caching headers) or make a symbolic link on the filesystem at the time > the GIF is written. > > Cheers, > Sean > > _______________________________________________ > Geowanking mailing list > [email protected] > http://lists.burri.to/mailman/listinfo/geowanking >
-- Grant Pezeshki [EMAIL PROTECTED] 718-857-8729 cell 917-257-3108 _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
