Бресенхем Алгоритм
function line(x0, y0, x1, y1) {
var dx = Math.abs(x1 - x0);
var dy = Math.abs(y1 - y0);
var sx = (x0 < x1) ? 1 : -1;
var sy = (y0 < y1) ? 1 : -1;
var err = dx - dy;
while(true) {
setPixel(x0, y0); // Do what you need to for this
if ((x0 === x1) && (y0 === y1)) break;
var e2 = 2*err;
if (e2 > -dy) { err -= dy; x0 += sx; }
if (e2 < dx) { err += dx; y0 += sy; }
}
}
Black Bird