// unlekkerLib - Marius Watz, workshop.evolutionzone.com
//
// Example showing how to write geometry to a STL file
// and then load it back in and render it using
// unlekker.geom.PolyData.
//
// Compatible with unlekkerLib-0002

import unlekker.data.*;
import unlekker.geom.*;

STL stl;
FaceList poly;

void setup() {
  size(400,400, P3D);
  frameRate(25);
  readSTL();
}

void draw() {
  background(0);
  translate(width/2,height/2);

  noStroke();
  lights();
  rotateY(radians(frameCount));
  rotateX(radians(frameCount*0.25f));

  fill(0,200,255, 128);

  poly.draw(this);
}

void readSTL() {
  // Read STL file
  stl=new STL(this,dataPath("Boxes.stl"));

  // Get polygon data
  poly=stl.getPolyData();

  poly.normalize(400); // normalize object to 400 diameter
  poly.center(); // center it around world origin
}

I have a “.stl” but I can’t read it on processing.

How do I to read it on processing.

Can you tell me?

Sorry , my English is poor.