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Class

PVector

Name

sub()
Examples
PVector v1, v2;

void setup() {
  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() {
  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() {
  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. In all cases, the second vector (v2) is subtracted from the first (v1), resulting in v1-v2.
Syntax
.sub(v)
.sub(x, y, z)
.sub(v1, v2)
.sub(v1, v2, target)
Parameters
v PVector: 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
v1 PVector: the x, y, and z components of a PVector object
v2 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
target PVector: PVector in which to store the result
Returnsvoid or PVector
Updated on May 19, 2014 05:30:03pm PDT

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