增強現實QualComm虛擬按鈕

Question

我在android -ndk AR新，所以需要一些幫助我使用Virtaul按鈕示例（從Vuforia）。

可我得到的虛擬觸摸到物理觸摸

一樣，如果我的紅色鈕觸摸屏幕，然後茶壺變爲紅色

，如果觸摸藍色按鈕茶壺變爲藍色茶壺？

Answer 1

我想通了，在我自己的 需要一個複雜的caclution和 用下面的公式與它

QCAR::CameraDevice& cameraDevice = QCAR::CameraDevice::getInstance(); 
     const QCAR::CameraCalibration& cameraCalibration = cameraDevice.getCameraCalibration(); 
     /////////////////////////////////////////////////////////Tyre////////////////////////////////////////// 
     QCAR::Vec2F cameraPoint = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-97.68, -15.93, 0.f)); 
     QCAR::Vec2F cameraPoint1 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-28, -15.93, 0.f)); 
     QCAR::Vec2F cameraPoint2 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-97.68, -50.52, 0.f)); 
     QCAR::Vec2F cameraPoint3 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-28.f, -50.52, 0.f)); 

     //////////////////////////////////////////////////HeadLight//////////////////////////////////////////////////////////// 
     QCAR::Vec2F cameraPoint4 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-52.28, 53, 0.f)); 
     QCAR::Vec2F cameraPoint5 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-21.f, 53.f, 0.f)); 
     QCAR::Vec2F cameraPoint6 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-53.f, -8.f, 0.f)); 
     QCAR::Vec2F cameraPoint7 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-21.f, -8.f, 0.f)); 
     //////////////////////////////////////////////////////Indicator////////////////////////////////////////////////////////////////////////////// 
     QCAR::Vec2F cameraPoint8 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-4.f, -94.f, 0.f)); 
     QCAR::Vec2F cameraPoint9 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(18, -94, 0.f)); 
     QCAR::Vec2F cameraPoint10 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(-4.f, -71.f, 0.f)); 
     QCAR::Vec2F cameraPoint11 = QCAR::Tool::projectPoint(cameraCalibration, trackable->getPose(), QCAR::Vec3F(18.f, -71.f, 0.f)); 

     ////////////////////////////////////////////////////////////////////////////////////////////////////////////// 

     QCAR::Vec2F screenPoint= cameraPointToScreenPoint(cameraPoint); 
     QCAR::Vec2F screenPoint1= cameraPointToScreenPoint(cameraPoint1); 
     QCAR::Vec2F screenPoint2= cameraPointToScreenPoint(cameraPoint2); 
     QCAR::Vec2F screenPoint3= cameraPointToScreenPoint(cameraPoint3); 
     ////////////////////////////////////////////////////////////////// 
     QCAR::Vec2F screenPoint4= cameraPointToScreenPoint(cameraPoint4); 
     QCAR::Vec2F screenPoint5= cameraPointToScreenPoint(cameraPoint5); 
     QCAR::Vec2F screenPoint6= cameraPointToScreenPoint(cameraPoint6); 
     QCAR::Vec2F screenPoint7= cameraPointToScreenPoint(cameraPoint7); 
     ////////////////////////////////////////////////////////////////// 
     QCAR::Vec2F screenPoint8= cameraPointToScreenPoint(cameraPoint8); 
     QCAR::Vec2F screenPoint9= cameraPointToScreenPoint(cameraPoint9); 
     QCAR::Vec2F screenPoint10= cameraPointToScreenPoint(cameraPoint10); 
     QCAR::Vec2F screenPoint11= cameraPointToScreenPoint(cameraPoint11); 
     ////////////////////////////////////////////////////////////////// 
     blY_Tyre=screenPoint.data[0]; 
     blX_Tyre=screenPoint.data[1]; 
     brY_Tyre=screenPoint1.data[0]; 
     brX_Tyre=screenPoint1.data[1]; 
     tlY_Tyre=screenPoint2.data[0]; 
     tlX_Tyre=screenPoint2.data[1]; 
     trY_Tyre=screenPoint3.data[0]; 
     trX_Tyre=screenPoint3.data[1]; 
     ////////////////////////////// 
     blY_Lite=screenPoint4.data[0]; 
     blX_Lite=screenPoint4.data[1]; 
     brY_Lite=screenPoint5.data[0]; 
     brX_Lite=screenPoint5.data[1]; 
     tlY_Lite=screenPoint6.data[0]; 
     tlX_Lite=screenPoint6.data[1]; 
     trY_Lite=screenPoint7.data[0]; 
     trX_Lite=screenPoint7.data[1]; 
     ////////////////////////////// 
     blY_Miror=screenPoint8.data[0]; 
     blX_Miror=screenPoint8.data[1]; 
     brY_Miror=screenPoint9.data[0]; 
     brX_Miror=screenPoint9.data[1]; 
     tlY_Miror=screenPoint10.data[0]; 
     tlX_Miror=screenPoint10.data[1]; 
     trY_Miror=screenPoint11.data[0]; 
     trX_Miror=screenPoint11.data[1];