Re: web cam code clarification

[Bream Rockmetteller <bream-dot.rockmetteller-at@xxxxxxx>]

On 2008-07-31 10:45:16 -0700, "Ian Edwards" 
<i.edwards@xxxxxxxxxxxxxxxxxxxxxxxxxx> said:

> Hi
>
> Saw this code listed on another site
>
> <img
>             height=310 alt="Plymouth Webcam"
>             src="C-Cheeta%20WEATHER_files/plymouth.jpg" width=412
>             border=2><BR>
>
> I'm assuming that this "web cam image" is simply a jpeg that is 
> refreshed at a specific time interval??
>
> If so any idea where I can source the refresh javascript?
>
> thanks
>
> Ian

It more than likely works in a similar fashion to a weather data 
collection program that I use. The data collection program generates 
html pages and various jpegs of graphs and places them in a directory. 
The pages and images are replaced at a pre-determined interval and 
contain the most recent information.  When updating, the program grabs 
a frame from a web cam and includes it in the pile of stuff in the 
directory. The <img> tag is static and simply displays what ever jpeg 
file is currently in the directory.

Unless the page you're viewing includes an "update now" button, there's 
probably no way to force it to give you a new image on demand.

If there's no index.html file in the directory, you might be able to 
access the files and poke around a bit. On my setup, I've included an 
index.html file that is just a redirect to the actual current 
conditions page, so you won't be able to peek behind the scenes.
--
Bream Rockmetteler
Donaldson's Dog Joy
509-540-0301