What are the different kinds of kolam?

These are the different kinds of kolam :-

1. The dots are encircled with curves or looped around with lines drawn around the dots.
2. The dots are connected to form a pattern or different patterns.
3. Line kolams have kolams drawn entirely of different sizes of lines , mostly with no dots.
4. Free form kolams called Rangoli are kolams with either no dots at all or with a minimal amount of dots and the use of more geometrical shapes.