ARBody2D 的人體節(jié)點信息如下
let skeleton = body.skeleton
for na in skeleton.definition.jointNames
{
print("--->(na)")
}
空間位置信息 ： skeleton.jointLandmarks
--->head_joint
--->neck_1_joint
--->right_shoulder_1_joint
--->right_forearm_joint
--->right_hand_joint
--->left_shoulder_1_joint
--->left_forearm_joint
--->left_hand_joint
--->right_upLeg_joint
--->right_leg_joint
--->right_foot_joint
--->left_upLeg_joint
--->left_leg_joint
--->left_foot_joint
--->right_eye_joint
--->left_eye_joint
--->root
--->right_ear_joint
--->left_ear_joint

以上表格json化

{
    "ARFrame": {
        "description": "AR 會話中的一幀數(shù)據(jù)",
        "attributes": [
            {
                "name": "camera",
                "description": "相機信息",
                "subAttributes": [
                    {
                        "name": "transform",
                        "type": "simd_float4x4",
                        "description": "表示相機在 3D 空間中的位置和方向，包含平移和旋轉(zhuǎn)信息。"
                    },
                    {
                        "name": "intrinsics",
                        "type": "simd_float3x3",
                        "description": "相機內(nèi)參矩陣，描述鏡頭的焦距和圖像中心，用于從 3D 坐標到 2D 圖像的投影。"
                    }
                ]
            },
            {
                "name": "anchors",
                "description": "錨點信息",
                "subAttributes": [
                    {
                        "name": "count",
                        "type": "Int",
                        "description": "當前幀中錨點的數(shù)量，表示虛擬物體的數(shù)量，幫助開發(fā)者了解場景的復雜性。"
                    },
                    {
                        "name": "identifier",
                        "type": "UUID",
                        "description": "錨點的唯一標識符，用于區(qū)分不同的虛擬對象，使得每個對象能夠被獨立跟蹤和管理。"
                    },
                    {
                        "name": "transform",
                        "type": "simd_float4x4",
                        "description": "表示該錨點在 3D 空間中的位置和方向，類似于相機變換。"
                    }
                ]
            },
            {
                "name": "lightEstimate",
                "description": "光照估計",
                "subAttributes": [
                    {
                        "name": "ambientIntensity",
                        "type": "Float",
                        "description": "當前環(huán)境的光照強度（以勒克斯為單位），用于調(diào)整虛擬物體的光照效果，使其看起來更加自然。"
                    },
                    {
                        "name": "ambientColorTemperature",
                        "type": "Float",
                        "description": "環(huán)境光的色溫（以開爾文為單位），影響物體的渲染色彩和真實感，幫助改善虛擬與現(xiàn)實的融合。"
                    }
                ]
            },
            {
                "name": "capturedImage",
                "description": "捕獲的圖像",
                "subAttributes": [
                    {
                        "name": "capturedImage",
                        "type": "CVPixelBuffer",
                        "description": "當前幀的原始圖像數(shù)據(jù)，包含攝像頭捕獲的畫面，可用于進行圖像處理或后續(xù)渲染。"
                    }
                ]
            },
            {
                "name": "timestamp",
                "description": "時間戳",
                "subAttributes": [
                    {
                        "name": "timestamp",
                        "type": "TimeInterval",
                        "description": "該幀捕獲的時間，通常以秒為單位，方便進行時間相關(guān)的處理或同步。"
                    }
                ]
            },
            {
                "name": "worldMappingStatus",
                "description": "世界映射狀態(tài)",
                "subAttributes": [
                    {
                        "name": "worldMappingStatus",
                        "type": "ARFrame.WorldMappingStatus",
                        "description": "表示 ARKit 對環(huán)境理解的狀態(tài)（如 .notAvailable、.limited、.extending 和 .mapped），指示 AR 會話的質(zhì)量和穩(wěn)定性。"
                    }
                ]
            },
            {
                "name": "detectedBody",
                "description": "檢測到的身體",
                "subAttributes": [
                    {
                        "name": "detectedBody",
                        "type": "ARBody2D? 或 ARBodyAnchor?",
                        "description": "如果檢測到人體骨架，返回相關(guān)數(shù)據(jù)（如身體位置和姿勢），否則為 nil，可用于與用戶進行交互。"
                    }
                ]
            },
            {
                "name": "segmentationBuffer",
                "description": "分割圖像",
                "subAttributes": [
                    {
                        "name": "segmentationBuffer",
                        "type": "CVPixelBuffer?",
                        "description": "表示當前場景的分割圖像，用于區(qū)分不同區(qū)域（如前景和背景），幫助提高渲染效果和視覺真實感。"
                    }
                ]
            },
            {
                "name": "depthData",
                "description": "深度數(shù)據(jù)",
                "subAttributes": [
                    {
                        "name": "depthData",
                        "type": "AVDepthData?",
                        "description": "場景的深度信息，提供距離數(shù)據(jù)，用于計算虛擬物體與現(xiàn)實世界之間的遮擋效果，增強 AR 體驗的真實感。"
                    }
                ]
            }
        ]
    }
}