OctreeHelper constructor

OctreeHelper(Octree octree, [ int color = 0xffff00 ])

Implementation

factory OctreeHelper(Octree octree, [int color = 0xffff00]) {
  List<double> vertices = [];

  void traverse(Octree tree) {
    for (int i = 0; i < tree.subTrees.length; i++) {
      Vector3 min = tree.subTrees[i].box.min;
      Vector3 max = tree.subTrees[i].box.max;
      vertices += [max.x, max.y, max.z];
      vertices += [min.x, max.y, max.z]; // 0, 1
      vertices += [min.x, max.y, max.z];
      vertices += [min.x, min.y, max.z]; // 1, 2
      vertices += [min.x, min.y, max.z];
      vertices += [max.x, min.y, max.z]; // 2, 3
      vertices += [max.x, min.y, max.z];
      vertices += [max.x, max.y, max.z]; // 3, 0

      vertices += [max.x, max.y, min.z];
      vertices += [min.x, max.y, min.z]; // 4, 5
      vertices += [min.x, max.y, min.z];
      vertices += [min.x, min.y, min.z]; // 5, 6
      vertices += [min.x, min.y, min.z];
      vertices += [max.x, min.y, min.z]; // 6, 7
      vertices += [max.x, min.y, min.z];
      vertices += [max.x, max.y, min.z]; // 7, 4

      vertices += [max.x, max.y, max.z];
      vertices += [max.x, max.y, min.z]; // 0, 4
      vertices += [min.x, max.y, max.z];
      vertices += [min.x, max.y, min.z]; // 1, 5
      vertices += [min.x, min.y, max.z];
      vertices += [min.x, min.y, min.z]; // 2, 6
      vertices += [max.x, min.y, max.z];
      vertices += [max.x, min.y, min.z]; // 3, 7

      //traverse(tree.subTrees[i]);
    }
  }

  traverse(octree);

  Float32Array array = Float32Array.fromList(vertices);

  BufferGeometry geometry = BufferGeometry();
  geometry.setAttribute('position', Float32BufferAttribute(array, 3));
  array.dispose();

  var oh = OctreeHelper.create(geometry, LineBasicMaterial({"color": color, "toneMapped": false}));

  oh.octree = octree;
  oh.color = color;
  oh.type = 'OctreeHelper';

  return oh;
}