srecord noeq G22MeshGroup(L<G22Mesh> meshes) is MakesBufferedImage {
  public Rect bounds() {
    ret mergeRects(map(meshes, m -> m.bounds()));
  }
  
  public int getWidth() { ret bounds().w; }
  public int getHeight() { ret bounds().h; }

  public BufferedImage getBufferedImage() {
    var r = bounds();
    if (r == null) null;
    ret new G22VisualizeMeshes(
      widthAndHeight(r.x2(), r.y2()), meshes)!;
  }
}