Morphogenetic programming exercise based on L-system or Lindenmayer system which is a mechanism for translating the generated strings into geometric structures. L-systems is also used to describe the behaviour of plant cells and to model the growth processes of plant development. L-systems have also been used to model the morphology of a variety of organisms and can be used to generate self-similar fractals such as iterated function systems. In this exercise changes of different variable with slider shows an interactive formation of the structure with different angle.