import tensorflow as tf

        max_x = tf.cast(0.0 + labeled_sizes[i][0] / 2.0, dtype=tf.float32)
        # min_y = tf.cast(0.0 - labeled_sizes[i][1] / 2.0, dtype=tf.float32)
        # max_y = tf.cast(0.0 + labeled_sizes[i][1] / 2.0, dtype=tf.float32)
        min_z = tf.cast(0.0 - labeled_sizes[i][2] / 2.0, dtype=tf.float32)
        max_z = tf.cast(0.0 + labeled_sizes[i][2] / 2.0, dtype=tf.float32)

