Hello im new to processing and need help with rotate

i have a vertex image which i want to draw multiple times around a fixed point

how do you adjust the radius from the fixed point to the vertex image

have tried translate(0,0,0) does not work ?

PVector v1,v2,v3,v4;
int px;
void setup(){
  size(800,400,P3D);
  translate(0,0,0);
}

void draw() {
  px=px+1;
  rotateZ(px);
  v1 = new PVector(400,200,0);
  v2 = new PVector(400,200,0);
  v3 = new PVector(400,200,0);
  v4 = new PVector(400,200,0);
  PImage aa = loadImage("tile.jpg");
  textureMode(NORMALIZED);
  beginShape();
  texture(aa);
  vertex(v1.x,v1.y,v1.z,0,0);
  vertex(v2.x+50,v2.y,v2.z,1,0);
  vertex(v3.x+50,v3.y+50,v3.z,1,1);
  vertex(v4.x,v4.y+50,v4.z,0,1);
  endShape();
    } 
 
 
 
  here is the code thanks !!