Date : Sat, 18 Jul 2009 10:04:28 +0100
From : robert@... (Rob)
Subject: ITV Teletext to shut down in January
On 18/07/2009, Sprow <info@...> wrote:
>> I had thought of
>> <img src="redR.gif"><img src="redE.gif"><img src="redD.gif"><img
>> src="space.gif">....
>
> As the underlying teletext bitmap is effectively only 320x256 why not just
> send the page as a bitmap (PNG compresses this to ~3k) and scale by two to
> get to 640x512 in the browser?
>
> Then, the HTML only needs to be concerned with an imagemap to do the page
> links and perhaps something to do the live ticker along the top,
Possibly...
This is how http://ceefax.tv/ does it.
As far as linking the page links goes, with teletext you can be fairly
sure that any reference to 3 digits <900 is a referance to a page
number that you can therefore hyperlink. When I'm doing Prestel or
other viewdata frames, they use single digit routing (sometimes
chained to offer 2 or 3 digit links) which means that almost any
number on the page might be a link, and it's only context that tells
you..
In any case, I actually was more wanting to use a font so I could
style some of the actual index pages and what have you, rather than
for the page displays. If it's all images, then it's not visible to
the search engines. A little how textfiles.com do their front page,
but for a viewdata font rather than a generic fixed-pitch one.
I'll keep thinking..