FSOSS 2010/processing.js/vectors

Vectors

• Object with a direction and magnitude (length)
• Typically represented using coordinates for simplicity
• Used for storing position, velocity, acceleration, etc.
• Processing has a built-in PVector object for 2D and 3D

Operations

Addition

• Add two vectors geometrically by adding head to tail
• Add two vectors algebraically by adding their components [3, 3] + [1, 2] = [4, 5]
• PVector.add(PVector)

Scale

• Scale a vector geometrically by stretching or shrinking
• Scale a vector algebraically by multiplying all components by scalar [1,3] * 2 = [2, 6]
• PVector.mult(float)