@java.lang.Override
  public com.google.cloud.vision.v1p4beta1.BoundingPolyOrBuilder getBoundingBoxOrBuilder() {
    return boundingBox_ == null
        ? com.google.cloud.vision.v1p4beta1.BoundingPoly.getDefaultInstance()
        : boundingBox_;
  }
<pre>
The bounding box for the symbol.
The vertices are in the order of top-left, top-right, bottom-right,
bottom-left. When a rotation of the bounding box is detected the rotation
is represented as around the top-left corner as defined when the text is
read in the 'natural' orientation.
For example:
  * when the text is horizontal it might look like:
     0----1
     |    |
     3----2
  * when it's rotated 180 degrees around the top-left corner it becomes:
     2----3
     |    |
     1----0
  and the vertex order will still be (0, 1, 2, 3).
</pre>

<code>.google.cloud.vision.v1p4beta1.BoundingPoly bounding_box = 2;</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/Symbol.java