BoundingPoly

Fields
vertex[] object (Vertex)

A BoundingPoly has N vertices in a clock-wise order.

JSON representation 
{
  "vertex": [
    {
      object (Vertex)
    }
  ]
}

Vertex

A vertex represents a 2D point in the image. NOTE: the normalized vertex coordinates are relative to the original image and range from 0 to 1.

Fields
x number

X coordinate.

y number

Y coordinate.

JSON representation 
{
  "x": number,
  "y": number
}