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AR人體姿態識別，實現無邊界的人機交互( 二 )

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  1. 初始化BodySkeletonDisplay,用來獲取骨架數據并將其傳遞給openGL ES,openGL ES將渲染數據并在屏幕上顯示 。
Public class BodySkeletonDisplay implements BodyRelatedDisplay{//此類需要幾個方法//初始化方法public void init(){}//使用OpenGL更新節點數據并繪制 。Public void onDrawFrame(Collection<ARBody> bodies,float[] projectionMatrix){for (ARBody body : bodies) {if (body.getTrackingState() == ARTrackable.TrackingState.TRACKING) {float coordinate = 1.0f;if (body.getCoordinateSystemType() == ARCoordinateSystemType.COORDINATE_SYSTEM_TYPE_3D_CAMERA) {coordinate = DRAW_COORDINATE;}findValidSkeletonPoints(body);updateBodySkeleton();drawBodySkeleton(coordinate, projectionMatrix);}}}//查找有效骨架點private void findValidSkeletonPoints(ARBody arBody) {int index = 0;int[] isExists;int validPointNum = 0;float[] points;float[] skeletonPoints;if (arBody.getCoordinateSystemType() == ARCoordinateSystemType.COORDINATE_SYSTEM_TYPE_3D_CAMERA) {isExists = arBody.getSkeletonPointIsExist3D();points = new float[isExists.length * 3];skeletonPoints = arBody.getSkeletonPoint3D();} else {isExists = arBody.getSkeletonPointIsExist2D();points = new float[isExists.length * 3];skeletonPoints = arBody.getSkeletonPoint2D();}for (int i = 0; i < isExists.length; i++) {if (isExists[i] != 0) {points[index++] = skeletonPoints[3 * i];points[index++] = skeletonPoints[3 * i + 1];points[index++] = skeletonPoints[3 * i + 2];validPointNum++;}}mSkeletonPoints = FloatBuffer.wrap(points);mPointsNum = validPointNum;}}
  1. 獲取骨架點連接數據 ， 并將其傳遞給OpenGL ES以便在屏幕上渲染 。
public class BodySkeletonLineDisplay implements BodyRelatedDisplay {//渲染身體骨骼之間的線條 。public void onDrawFrame(Collection<ARBody> bodies, float[] projectionMatrix) {for (ARBody body : bodies) {if (body.getTrackingState() == ARTrackable.TrackingState.TRACKING) {float coordinate = 1.0f;if (body.getCoordinateSystemType() == ARCoordinateSystemType.COORDINATE_SYSTEM_TYPE_3D_CAMERA) {coordinate = COORDINATE_SYSTEM_TYPE_3D_FLAG;}updateBodySkeletonLineData(body);drawSkeletonLine(coordinate, projectionMatrix);}}}}8.具體實現請參考：AR Engine示例代碼-AR Engine | 華為開發者聯盟 (huawei.com)
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【AR人體姿態識別，實現無邊界的人機交互】

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