Hi!
Karan, I don't really see how using an RSS parser that is done by a
RSS Downloader and some Structure patches should slow down
performance. As soon as the patch has downloaded the data, it won't do
anything until the next time the "Update Signal" input port of the RSS
Downloader is set to true. The same applies for all downstream
Structure patches. In short: the parsing is done exactly one time and
disabling the whole bunch of patches that does this after one second
won't make it any faster. On the contrary, this could introduce
unwanted behaviour. Just think about a slow network connection...
Anyway, David, I'd suggest you use a XML Downloader patch in
combination with a few Structure patches to do this. I have done quite
a few things in that direction already and it works really well. For
example, I used the service by weather.com, who provide a really great
XML weather feed that is nicely documented, detailed and customizable.
Maybe you'd like to take a look at the SQLite patch example in /
Developer/Examples/Quartz Composer/Plugins/SQLiteQuery if you want to
use a SQLite Database in background (works great in combination with
Core Data).
There are whole video distribution systems up and running using Quartz
Composer that are controlled by a server using XML of some kind. You
just need to define your XML scheme and do a editor for that. The part
in Quartz Composer is easy.
Greetings,
Marco
On 20.11.2007, at 18:03, Karan Lyons wrote:
My main project in QC is something along the lines of this. You can
parse an rss feed entirely in Quartz Composer, but that can be
cumbersome, and slows down the rendering time. You can throw the
parser in a render in image patch, and then set it to render for a
second and then stop, and then you'll be left with a static image,
which will increase the framerate, or you could write a parser in
PHP and have the RSS feed patch download from there. I like the
third option, as it's the fastest.
Namaste,
Karan
Karan "The Architect" Lyons: Web Design & Development at Geek
Ramblings | Student | Omnigeek
contact | email: [EMAIL PROTECTED]| cell: 857-544-9527 |
skype: taoofkaran | aim: taoofkaran
On Nov 20, 2007, at 11:52 AM, apple wrote:
Good Day All..
Haven't played with Quartz Composer for a couple of years,
wondering if things have changed..
We use a eMac hooked up to our school's video distribution system
to display student made DVDs, class projects and a daily PowerPoint.
I'd like the presentation to be done with Quartz as a screen saver
since is it much NICER than PowerPoint. But I'd like Quartz to get
data that can be inputed by a student (k-5 student) and read from a
text file. Such as classes with perfect attendance, today local
weather, etc...
Is this possible with todays Quartz Composer? If so how? Anyone
have an example online..
I can do the basic stuff (i.e.: Globe with real time weather cloud
cover, time, date), but I'd like to advance my skills.... Perhaps
using Automator or Apple script with Quartz Composer.
Thanks
David - CST/CET
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