[TriEmbed] need 64x64 and smaller font bitmap generator

[Jon Wolfe]

Here are some links for programs and code libraries I've tried.

http://www.mugui.de/

https://code.google.com/p/glcd-arduino/downloads/list?can=1&q=

Sorry I don't remember which had the best results. 




________________________________
 From: Jon Wolfe <jonjwolfe at yahoo.com>
To: Pete Soper <pete at soper.us>; "triembed at triembed.org" <triembed at triembed.org> 
Sent: Monday, March 17, 2014 5:55 PM
Subject: Re: [TriEmbed] need 64x64 and smaller font bitmap generator
 


I don't have the resources in front of me. But I too have spent time looking for things like this. A lot of the font data can be specific to the library or even a specific LCD memory layout (some are organized horizontally, some are vertically).

A couple tricks that I've found useful: 

look for existing projects using the same LCD/library, they might have a font in there you can borrow. 

or, when I got desparate, I just made my own. GCC for AVR chips supports the binary literal:

255 => 0xFF => 0b11111111

That can be helpful to create your own font if your memory layout is conducive to it. It's a little labor intensive, but it works.


I'll look for the LCD font generator tools that I downloaded not long ago, but I never had great luck with them.

Also, dig deep into the driver chip's datasheet. It may have [poorly advertised] built-in fonts that you can access.




________________________________
 From: Pete Soper <pete at soper.us>
To: triembed at triembed.org 
Sent: Monday, March 17, 2014 5:33 PM
Subject: [TriEmbed] need 64x64 and smaller font bitmap generator
 

I'd like to display two digit numbers on a 128x64 graphic display (i.e. 
two 64x64 pixel digits) and wonder if somebody has made a site that 
generates C declarations for bitmap fonts like this on the fly?

For example, with Stanley Huang's MicroLCD library code there is an 
inline declaration of a 16x24 font like the one at the end of this 
message. I guess I'm really just looking for a source for a font that 
could be scaled (and not look terrible when scaled: notice this 16x24 
font wouldn't scale to 64x64). But I have no idea what resources exist 
and hope somebody on this list does. My idea of nirvana would be a web 
site where you pick an X and Y size, pick a font that scales to that 
size and get a C or C++ declaration for some alphabet that can be an 
index into the array of bit maps.

-Pete


// fonts data
const PROGMEM
 unsigned char digits16x24[][48] = {
{0x00,0x00,0x00,0xF0,0xFF,0x0F,0xFC,0xFF,0x3F,0xFE,
0xFF,0x7F,0xFE,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0x07,0x00,0xE0,0x07,0x00,0xE0,0x07,0x00,0xE0,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0x7F,0xFE,0
xFF,0x7F,0xFC,0xFF,0x3F,0xF0,0xFF,
0x0F},/*"0",0*/



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