pointOnLine static method
Implementation
static bool pointOnLine(
num x,
num y,
num x1,
num y1,
num x2,
num y2,
) {
num ax = x1 - x;
num ay = y1 - y;
num bx = x2 - x;
num by = y2 - y;
return (ax * by - ay * bx).abs() < 1.0E-8 && ax * bx + ay * by < 1.0E-8;
}