private Rect ScreenSpaceRectFromCamSpaceRectData(RectangleIntData camSpaceRectData, Rect bgTextureViewPortRect, bool isTextureMirrored, CameraDevice.VideoModeData videoModeData)
{
Vector2 topLeft = QCARRuntimeUtilities.CameraFrameToScreenSpaceCoordinates(new Vector2((float)camSpaceRectData.leftTopX, (float)camSpaceRectData.leftTopY), bgTextureViewPortRect, isTextureMirrored, videoModeData);
Vector2 bottomRight = QCARRuntimeUtilities.CameraFrameToScreenSpaceCoordinates(new Vector2((float)camSpaceRectData.rightBottomX, (float)camSpaceRectData.rightBottomY), bgTextureViewPortRect, isTextureMirrored, videoModeData);
return(QCARRuntimeUtilities.CalculateRectFromLandscapeLeftCorners(topLeft, bottomRight, isTextureMirrored));
}
public override bool GetRegionOfInterest(out Rect detectionRegion, out Rect trackingRegion)
{
QCARAbstractBehaviour behaviour = (QCARAbstractBehaviour)UnityEngine.Object.FindObjectOfType(typeof(QCARAbstractBehaviour));
if (behaviour == null)
{
Debug.LogError("QCAR Behaviour could not be found");
detectionRegion = new Rect();
trackingRegion = new Rect();
return(false);
}
Rect viewportRectangle = behaviour.GetViewportRectangle();
bool videoBackGroundMirrored = behaviour.VideoBackGroundMirrored;
CameraDevice.VideoModeData videoMode = CameraDevice.Instance.GetVideoMode(behaviour.CameraDeviceMode);
IntPtr detectionROI = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(RectangleIntData)));
IntPtr trackingROI = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(RectangleIntData)));
QCARWrapper.Instance.TextTrackerGetRegionOfInterest(detectionROI, trackingROI);
RectangleIntData camSpaceRectData = (RectangleIntData)Marshal.PtrToStructure(detectionROI, typeof(RectangleIntData));
RectangleIntData data3 = (RectangleIntData)Marshal.PtrToStructure(trackingROI, typeof(RectangleIntData));
Marshal.FreeHGlobal(detectionROI);
Marshal.FreeHGlobal(trackingROI);
detectionRegion = this.ScreenSpaceRectFromCamSpaceRectData(camSpaceRectData, viewportRectangle, videoBackGroundMirrored, videoMode);
trackingRegion = this.ScreenSpaceRectFromCamSpaceRectData(data3, viewportRectangle, videoBackGroundMirrored, videoMode);
return(true);
}
/// <summary>
/// Returns the areas of the image in screen coordinates where text can be detected and tracked.
/// </summary>
public override bool GetRegionOfInterest(out Rect detectionRegion, out Rect trackingRegion)
{
QCARBehaviour qcarbehaviour = (QCARBehaviour)Object.FindObjectOfType(typeof(QCARBehaviour));
if (qcarbehaviour == null)
{
Debug.LogError("QCAR Behaviour could not be found");
detectionRegion = new Rect();
trackingRegion = new Rect();
return(false);
}
// required information to transform camera frame to screen space coordinates:
Rect bgTextureViewPortRect = qcarbehaviour.GetViewportRectangle();
bool isMirrored = qcarbehaviour.VideoBackGroundMirrored;
CameraDevice.VideoModeData videoModeData = CameraDevice.Instance.GetVideoMode(qcarbehaviour.CameraDeviceMode);
IntPtr detectionROIptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(RectangleIntData)));
IntPtr trackingROIptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(RectangleIntData)));
// get current region of interest from native
QCARWrapper.Instance.TextTrackerGetRegionOfInterest(detectionROIptr, trackingROIptr);
RectangleIntData detectionROIcamSpace = (RectangleIntData)Marshal.PtrToStructure(detectionROIptr, typeof(RectangleIntData));
RectangleIntData trackingROIcamSpace = (RectangleIntData)Marshal.PtrToStructure(trackingROIptr, typeof(RectangleIntData));
Marshal.FreeHGlobal(detectionROIptr);
Marshal.FreeHGlobal(trackingROIptr);
// calculate screen space rect for detection and tracking regions:
detectionRegion = ScreenSpaceRectFromCamSpaceRectData(detectionROIcamSpace, bgTextureViewPortRect, isMirrored, videoModeData);
trackingRegion = ScreenSpaceRectFromCamSpaceRectData(trackingROIcamSpace, bgTextureViewPortRect, isMirrored, videoModeData);
return(true);
}
private Rect ScreenSpaceRectFromCamSpaceRectData(RectangleIntData camSpaceRectData, Rect bgTextureViewPortRect,
bool isTextureMirrored, CameraDevice.VideoModeData videoModeData)
{
Vector2 topLeftSSLandscape = QCARRuntimeUtilities.CameraFrameToScreenSpaceCoordinates(new Vector2(camSpaceRectData.leftTopX, camSpaceRectData.leftTopY),
bgTextureViewPortRect, isTextureMirrored, videoModeData);
Vector2 bottomRightSSLandscape = QCARRuntimeUtilities.CameraFrameToScreenSpaceCoordinates(new Vector2(camSpaceRectData.rightBottomX, camSpaceRectData.rightBottomY),
bgTextureViewPortRect, isTextureMirrored, videoModeData);
return QCARRuntimeUtilities.CalculateRectFromLandscapeLeftCorners(topLeftSSLandscape, bottomRightSSLandscape, isTextureMirrored);
}
