Reference for Processing version 1.2. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.

Class

PVector
Name

sub()
Examples 
PVector v1, v2;

void setup() {
  smooth();
  noLoop();
  v1 = new PVector(40, 20, 0);
  v2 = new PVector(65, 70, 0); 
}

void draw() {
  ellipse(v1.x, v1.y, 12, 12);
  ellipse(v2.x, v2.y, 12, 12);
  v2.sub(v1);
  ellipse(v2.x, v2.y, 24, 24);
}
PVector v;

void setup() {
  smooth();
  noLoop();
  v = new PVector(65, 70, 0);
}

void draw() {
  ellipse(v.x, v.y, 12, 12);
  ellipse(40, 20, 12, 12);
  v.sub(40, 20, 0);
  ellipse(v.x, v.y, 24, 24);
}
PVector v1, v2;

void setup() {
  smooth();
  noLoop();
  v1 = new PVector(65, 70, 0);
  v2 = new PVector(40, 20, 0); 
}

void draw() {
  ellipse(v1.x, v1.y, 12, 12);
  ellipse(v2.x, v2.y, 12, 12);
  PVector v3 = PVector.sub(v1, v2);
  ellipse(v3.x, v3.y, 24, 24);
}
Description Subtracts x, y, and z components from a vector, subtracts one vector from another, or subtracts two independent vectors. The version of the method that substracts two vectors is a static method and returns a PVector, the others have no return value -- they act directly on the vector. See the examples for more context.
Syntax 
vec.sub(x, y, z)
vec.sub(v)
PVector.sub(v1, v2)
Parameters
vec any variable of type PVector
x float: the x component of the vector
y float: the y component of the vector
z float: the z component of the vector
v PVector: the x, y, and z components of a PVector object
v1 PVector: the x, y, and z components of a PVector object
v2 PVector: the x, y, and z components of a PVector object
vec any variable of type PVector
Returns None or PVector
Usage Web & Application
Updated on June 14, 2010 12:05:29pm EDT

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