Re: Design Software for an LED Display

One way of accessing a LoL is like this:

foreach my $sec_level(@list){
    foreach (@$sec_level){
         # $_ is now the element in the second level list
    }
}
[download]

I'm not sure that a GUI is the way you need to go with displaying on an LED screen. If you want to convert say "2" to an LED 2 like

XXXXX
    X
XXXXX
X    
XXXXX
[download]

You might want to take a look at (GOLF) LED Sign for some pointers.

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Re: Re: Design Software for an LED Display by elusion (Curate) on Jun 11, 2001 at 19:25 UTC
Ok... I knew how to access an LoL (sorry, shoulda made that more clear), just not how to turn it back into the compiled form. I want to be able to click on a light and have it go on/off in that frame. It's more complicated than just scrolling text. It uses borders and such as well. Maybe I'll update later with a screenshot later of the current program. - p u n k k i d "Reality is merely an illusion, albeit a very persistent one." -Albert Einstein Update: Here's a picture of the current program. I am looking to implement something like the dots you see there. The program allows you to move the dots and create lines/boxes and use fonts.	[reply]
Re: Re: Re: Design Software for an LED Display by da (Friar) on Jun 11, 2001 at 21:56 UTC
Is it possible to take fonts and make the output a series of dots? It certainly is. You could use GD or Image::Magick to draw the text in whatever font(s) you like, then read the image pixel by pixel using one of these methods. Take a gander at this or this for some more pixel-by-pixel manipulation info. `___` `-DA`	[reply] [d/l] [select]