In this part of the workshop we looked at vectors, forces and velocity, and how this can be used in Processing. Before we could start using them, we had to understand what they meant and what effect they would have using them in Processing.
Vector: A mathematical object positioning, which is described by a magnitude (size) and direction. The vectors magnitude is equal to the length of the arrow, and it’s direction corresponds to where the arrow is pointing. A vector is a numerical value in a specific direction, the force vector describes a specific amount of force and its direction. You need both value and direction to have a vector.
Force: A vector that tells the strength and direction of either a ‘push’ or ‘pull’ upon an object, resulting from the interaction of one object with another. It is a description of the interaction between two physical bodies, such as an object and it’s environment. They only exist as a result with an interaction. Force acting on an object change’s its velocity.
The rate of change, the difference between the the initial and final position of an object. It is a vector physical quantity; you need both the magnitude and direction of the object to define it. If there is a change in either speed or direction, the object has a changing of velocity (acceleration).
In the workshop, we attempted to create a ball that is, using force, propelled across the canvas. Using a line, we were able to determine the direction and speed which as operated with the mouse. This also showed how forces decay over the time, and with what we had created, we could determine the rate (speed) at which that happened with only a tiny adjustment to make.
As I haven’t done much Physics or Maths since my GCSE’s, I found it a little tricky to get my head round how each part contributed to what was happening in Processing. I aim to look at another tutorial that focus’ on this area so that I am comfortable with using it if my interactive installation requires me to use this.