I have been always interested in mathematical patterns that appear in nature. I would like to slowly build a tool-set of patterns like the ones that can be found in D'Arcy Wentworth Thompson's "On Growth and Form".

I chose to implement (in Processing) a simple but very beautiful pattern, that of the sunflower. The arrangement of spirals of seeds on the sunflower (like many things in nature) follow the Fibonacci ratio. Small variations of the ratio produce very different results. I used the Yahoo Weather API, provided the postcode for several different places and retrieved the temperature and the direction of the wind at a given place. These variables were used to produce deviations from the angle of the spiral as well as the color. As expected even small variation on the weather conditions of a location, produce very different results.