我刚刚安装了 openNi 库并让我的 kinect 在我的计算机上工作。我的问题是我只是 C++ 的新手编程。
我从这个页面复制了手部追踪的代码:
http://openni.org/Documentation/ProgrammerGuide.html
并将其粘贴到我的 VisualStudio11 beta 项目中。
它一直在说我没有定义变量 xn ......但我不知道 xn 是什么。
如果可以请告诉我如何在代码中定义 de 变量 xn,或者我必须做什么才能使代码正常工作。
实现:这是代码,在我上面提到的页面中
#define GESTURE_TO_USE "Click"
xn::GestureGenerator g_GestureGenerator;
xn::HandsGenerator g_HandsGenerator;
void XN_CALLBACK_TYPE
Gesture_Recognized(xn::GestureGenerator& generator,
const XnChar* strGesture,
const XnPoint3D* pIDPosition,
const XnPoint3D* pEndPosition, void* pCookie)
{
printf("Gesture recognized: %s\n", strGesture);
g_GestureGenerator.RemoveGesture(strGesture);
g_HandsGenerator.StartTracking(*pEndPosition);
}
void XN_CALLBACK_TYPE
Gesture_Process(xn::GestureGenerator& generator,
const XnChar* strGesture,
const XnPoint3D* pPosition,
XnFloat fProgress,
void* pCookie)
{}
void XN_CALLBACK_TYPE
Hand_Create(xn::HandsGenerator& generator,
XnUserID nId, const XnPoint3D* pPosition,
XnFloat fTime, void* pCookie)
{
printf("New Hand: %d @ (%f,%f,%f)\n", nId,
pPosition->X, pPosition->Y, pPosition->Z);
}
void XN_CALLBACK_TYPE
Hand_Update(xn::HandsGenerator& generator,
XnUserID nId, const XnPoint3D* pPosition,
XnFloat fTime, void* pCookie)
{
}
void XN_CALLBACK_TYPE
Hand_Destroy(xn::HandsGenerator& generator,
XnUserID nId, XnFloat fTime,
void* pCookie)
{
printf("Lost Hand: %d\n", nId);
g_GestureGenerator.AddGesture(GESTURE_TO_USE, NULL);
}
void main()
{
XnStatus nRetVal = XN_STATUS_OK;
Context context;
nRetVal = context.Init();
// TODO: check error code
// Create the gesture and hands generators
nRetVal = g_GestureGenerator.Create(context);
nRetVal = g_HandsGenerator.Create(context);
// TODO: check error code
// Register to callbacks
XnCallbackHandle h1, h2;
g_GestureGenerator.RegisterGestureCallbacks(Gesture_Recognized,
Gesture_Process,
NULL, h1);
g_HandsGenerator.RegisterHandCallbacks(Hand_Create, Hand_Update,
Hand_Destroy, NULL, h2);
// Start generating
nRetVal = context.StartGeneratingAll();
// TODO: check error code
nRetVal = g_GestureGenerator.AddGesture(GESTURE_TO_USE);
while (TRUE)
{
// Update to next frame
nRetVal = context.WaitAndUpdateAll();
// TODO: check error code
}
// Clean up
context.Shutdown();
}