film_core/layout.js

function rotatePoint(centerX, centerY, distance, angleInDegrees) {
    const angleInRadians = angleInDegrees * (Math.PI / 180);
    
    const x = centerX + (distance * Math.cos(angleInRadians));
    const y = centerY + (distance * Math.sin(angleInRadians));
    
    return { x, y, z : 0 };
}
let obj = [
  "16mm_2in",
  "16mm_2in_np",
  "16mm_3in",
  "16mm_3in_np",

  "8mm_2in",
  "8mm_2in_np",
  "8mm_3in",
  "8mm_3in_np",

  "35mm_2in",
  "35mm_2in_np",
  "35mm_3in",
  "35mm_3in_np"
];
let meta = {
  objects : []
}
for (let i = 0; i < 12; i++) {
  meta.objects.push ({
      name : 'film_core_' + obj[i], 
      material : "white_plastic",
      position : rotatePoint(0, 0, 160, i * (360 / 12)),
      rotation : {
        x : 0,
        y : 90,
        z : i * (360 / 12)
      }
  });
}

console.log(JSON.stringify(meta, null, '\t'))