getVertex() / Reference / Processing.org

Name

getVertex()

Class

PShape

Description

The getVertex() method returns a PVector with the coordinates of the vertex point located at the position defined by the index parameter. This method works when shapes are created as shown in the example above, but won't work properly when a shape is defined explicitly (e.g. createShape(RECT, 20, 20, 80, 80).

Examples

PShape s;

void setup() {
  size(100, 100);
  s = createShape();
  s.beginShape();
  s.vertex(0, 0);
  s.vertex(60, 0);
  s.vertex(60, 60);
  s.vertex(0, 60);
  s.endShape(CLOSE);
}

void draw() {
  translate(20, 20);
  for (int i = 0; i < s.getVertexCount(); i++) {
    PVector v = s.getVertex(i);
    v.x += random(-1, 1);
    v.y += random(-1, 1);
    s.setVertex(i, v);
  }
  shape(s);
}

Syntax

sh.getVertex(index)
sh.getVertex(index, vec)

Parameters

sh(PShape) any variable of type PShape
index(int)the location of the vertex
vec(PVector)PVector to assign the data to

Return

PVector

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