{
    "image_size": {
      "width": 512,
      "height": 512
    },
    "coordinate_system": {
      "origin": "top_left",
      "x_axis": "to_right",
      "y_axis": "downward"
    },
    "objects": [
      {
        "id": "red_ball",
        "category": "circle",
        "color_rgb": [239, 79, 70],
        "position": {
          "center_x": 77.51,
          "center_y": 133.55
        },
        "bbox": {
          "x_min": 60,
          "y_min": 116,
          "x_max": 95,
          "y_max": 151,
          "width": 36,
          "height": 36
        },
        "size": {
          "area_pixels": 1009,
          "radius_pixels": 17.92
        }
      },
      {
        "id": "tilted_gray_u",
        "category": "u_shape",
        "color_rgb": [188, 201, 208],
        "position": {
          "center_x": 272.63,
          "center_y": 277.58
        },
        "bbox": {
          "x_min": 186,
          "y_min": 186,
          "x_max": 336,
          "y_max": 343,
          "width": 151,
          "height": 158
        },
        "size": {
          "area_pixels": 3207,
          "stroke_thickness_pixels": 9.99
        },
        "orientation": {
          "angle_deg": -54.81,
          "definition": "angle from +x axis, counter-clockwise"
        }
      },
      {
        "id": "black_bar",
        "category": "line_segment",
        "color_rgb": [0, 0, 0],
        "position": {
          "center_x": 90.31,
          "center_y": 364.09
        },
        "bbox": {
          "x_min": 23,
          "y_min": 348,
          "x_max": 158,
          "y_max": 380,
          "width": 136,
          "height": 33
        },
        "size": {
          "area_pixels": 1404,
          "length_pixels": 136.45,
          "thickness_pixels": 10.29
        },
        "orientation": {
          "angle_deg": -9.46,
          "definition": "angle from +x axis, counter-clockwise"
        }
      },
      {
        "id": "vertical_pillar_left",
        "category": "rectangle_bar",
        "color_rgb": [184, 200, 206],
        "position": {
          "center_x": 121.5,
          "center_y": 460.5
        },
        "bbox": {
          "x_min": 117,
          "y_min": 410,
          "x_max": 126,
          "y_max": 511,
          "width": 10,
          "height": 102
        },
        "size": {
          "area_pixels": 1020,
          "length_pixels": 102.0,
          "thickness_pixels": 10.0
        },
        "orientation": {
          "angle_deg": 90.0,
          "definition": "angle from +x axis, counter-clockwise"
        }
      },
      {
        "id": "vertical_pillar_middle",
        "category": "rectangle_bar",
        "color_rgb": [184, 200, 209],
        "position": {
          "center_x": 198.5,
          "center_y": 447.5
        },
        "bbox": {
          "x_min": 194,
          "y_min": 384,
          "x_max": 203,
          "y_max": 511,
          "width": 10,
          "height": 128
        },
        "size": {
          "area_pixels": 1280,
          "length_pixels": 128.0,
          "thickness_pixels": 10.0
        },
        "orientation": {
          "angle_deg": 90.0,
          "definition": "angle from +x axis, counter-clockwise"
        }
      },
      {
        "id": "vertical_pillar_right",
        "category": "rectangle_bar",
        "color_rgb": [186, 200, 208],
        "position": {
          "center_x": 275.5,
          "center_y": 434.5
        },
        "bbox": {
          "x_min": 271,
          "y_min": 358,
          "x_max": 280,
          "y_max": 511,
          "width": 10,
          "height": 154
        },
        "size": {
          "area_pixels": 1540,
          "length_pixels": 154.0,
          "thickness_pixels": 10.0
        },
        "orientation": {
          "angle_deg": 90.0,
          "definition": "angle from +x axis, counter-clockwise"
        }
      },
      {
        "id": "tilted_gray_bar_x1",
        "category": "line_segment",
        "color_rgb": [187, 200, 207],
        "position": {
          "center_x": 300.2,
          "center_y": 451.52
        },
        "bbox": {
          "x_min": 285,
          "y_min": 391,
          "x_max": 317,
          "y_max": 511,
          "width": 33,
          "height": 121
        },
        "size": {
          "area_pixels": 773,
          "length_pixels": 122.35,
          "thickness_pixels": 6.32
        },
        "orientation": {
          "angle_deg": -77.54,
          "definition": "angle from +x axis, counter-clockwise"
        }
      },
      {
        "id": "tilted_gray_bar_x2",
        "category": "line_segment",
        "color_rgb": [186, 200, 207],
        "position": {
          "center_x": 301.36,
          "center_y": 451.18
        },
        "bbox": {
          "x_min": 285,
          "y_min": 391,
          "x_max": 317,
          "y_max": 511,
          "width": 33,
          "height": 121
        },
        "size": {
          "area_pixels": 798,
          "length_pixels": 122.02,
          "thickness_pixels": 6.54
        },
        "orientation": {
          "angle_deg": 77.56,
          "definition": "angle from +x axis, counter-clockwise"
        }
      }
    ]
  }