# 标签数据结构

### 标注数据结构

支持11种类型可视化，具体标注数据放入anotations数组中。

| 参数       | 类型            | 是否必传 | 描述                                                                                                            |
| -------- | ------------- | ---- | ------------------------------------------------------------------------------------------------------------- |
| label    | string        | 是    | 标注物体                                                                                                          |
| type     | string        | 是    | 标注类型，支持：box2d、ellipse、polygon、line、curve、point、parallel、box3d、cuboid、side\_cuboid、sentence，详情参考 Labels.data定义 |
| data     | object\|array | 是    | 参考Labels.data定义                                                                                               |
| instance | string        | 否    | 实例ID                                                                                                          |
| attrs    | object        | 否    | 标注物体属性，如：{"truncate":true,  "angle":90}                                                                       |
| index    | int           | 否    | 标注物体在图像中的显示层级顺序，数字大的将覆盖数字小的显示，常用于图像分割类，范围 0 - 65535                                                           |

###

### 详细Labels.data结构

```
box2d
{
    "x":21.31,  //左上点xy
    "y":33.22,
    "width":210,
    "height":122
}

ellipse
{
    "x":21.31,
    "y":33.22,
    "width":210,
    "height":122
}

polygon
[
    {"x":22.22,"y":222.22},
    {"x":22.22,"y":222.22}
]

line
[
    {"x":22.22,"y":222.22},
    {"x":22.22,"y":222.22}
]

curve 2阶贝塞尔曲线
[
    {"x":22.22,"y":222.22},
    {"x":22.22,"y":222.22}
]

point
{"x":22.22,"y":222.22}

parallel 连续的4个顶点 
[    
     {"x":22.22,"y":222.22},  
     {"x":22.22,"y":222.22},  
     {"x":22.22,"y":222.22},  
     {"x":22.22,"y":222.22}
]

box3d 点云3d框
{
    "position":{
        "x":123,
        "y":123,
        "z":123,
    },
    "scale":{
         "x":123,
         "y":123,
         "z":123,
    },
    "rotation":{
        "x":0,
        "y":0,
        "z":-1.57,
    }
}

cuboid 立体框，前后框的顶点顺序需一致
 {
    "front": [
        {"x":1,"y":1},{"x":1,"y":1},{"x":1,"y":1},{"x":1,"y":1}
    ] ,
    "back": [
        {"x":1,"y":1},{"x":1,"y":1},{"x":1,"y":1},{"x":1,"y":1}
    ] 
}

side_cuboid 侧面立体框（日型框）
 {
    "front": [
        {"x":1,"y":1},{"x":1,"y":1},{"x":1,"y":1},{"x":1,"y":1}
    ] ,
    "back": [
        {"x":1,"y":1},{"x":1,"y":1}
    ] 
}

sentence
{
    "text":"转写内容",
    "start": 10.001,
    "end":11.002,
    "spell":"拼音",
    "phoneme":"音素"
}
```