handscript ... not yet dismissed

I made no progress in building something to recognize scribbling writing input to my NDS homebrew. But I haven't forgot about it completely either.

I had a old post saying "NDS touch screen is 62x48mm. That makes 1 pixel 0.25x0.25mm. My 8x15 font will take about 2x4mm, making it comparable to tracing 3x5 letters on millimeter sheets (following the edges, not filling the dots) with a .2mm pen. That should be quite easy to emulate."

The smallest I know that works is a grid where cells are 4x4. That's what SpriteEditor does in the "big grid". With 4x8 cells per character, that means 16 characters horizontally on the DS screen, and at best 6 rows of text.

I feel like keeping simple squares (or possibly dots ?) would work sufficiently well. A 1-pixel padding to avoid adding corner cells when we're trying to make a "turn". No fancy overlay, no "drag a wire like in those Android lock screens". just use the bottom 8x8 pixel of each character to print which character has been detected.