private void UpdateWordResultPoses(Camera arCamera, IEnumerable <QCARManagerImpl.WordResultData> wordResults)
{
QCARBehaviour qcarbehaviour = (QCARBehaviour)Object.FindObjectOfType(typeof(QCARBehaviour));
if (qcarbehaviour == null)
{
Debug.LogError("QCAR Behaviour could not be found");
return;
}
// required information to transform camera frame coordinates into screen space coordinates:
Rect bgTextureViewPortRect = qcarbehaviour.GetViewportRectangle();
bool isMirrored = qcarbehaviour.VideoBackGroundMirrored;
CameraDevice.VideoModeData videoModeData = qcarbehaviour.GetVideoMode();
foreach (var wrd in wordResults)
{
var wordResult = (WordResultImpl)mTrackedWords[wrd.id];
var position = arCamera.transform.TransformPoint(wrd.pose.position);
var wrdOrientation = wrd.pose.orientation;
var rotation = arCamera.transform.rotation *
wrdOrientation *
Quaternion.AngleAxis(270, Vector3.left);
wordResult.SetPose(position, rotation);
wordResult.SetStatus(wrd.status);
var obb = new OrientedBoundingBox(wrd.orientedBoundingBox.center, wrd.orientedBoundingBox.halfExtents,
wrd.orientedBoundingBox.rotation);
wordResult.SetObb(QCARRuntimeUtilities.CameraFrameToScreenSpaceCoordinates(obb, bgTextureViewPortRect,
isMirrored, videoModeData));
}
// update word behaviours if enabled:
if (mWordPrefabCreationMode == WordPrefabCreationMode.DUPLICATE)
{
UpdateWordBehaviourPoses();
}
}
/// <summary>
/// Defines the areas of the image in screen coordinates where text can be detected and tracked.
/// </summary>
public override bool SetRegionOfInterest(Rect detectionRegion, Rect trackingRegion)
{
QCARBehaviour qcarbehaviour = (QCARBehaviour)Object.FindObjectOfType(typeof(QCARBehaviour));
if (qcarbehaviour == null)
{
Debug.LogError("QCAR Behaviour could not be found");
return(false);
}
// required information to transform screen space coordinates into camera frame coordinates:
Rect bgTextureViewPortRect = qcarbehaviour.GetViewportRectangle();
bool isMirrored = qcarbehaviour.VideoBackGroundMirrored;
CameraDevice.VideoModeData videoModeData = CameraDevice.Instance.GetVideoMode(qcarbehaviour.CameraDeviceMode);
// depending on the current orientation, different corner points of the rect have to be taken
// - they need to span a rectangle in the camera frame coordinate system
Vector2 detectionLeftTop, detectionRightBottom, trackingLeftTop, trackingRightBottom;
QCARRuntimeUtilities.SelectRectTopLeftAndBottomRightForLandscapeLeft(detectionRegion, isMirrored, out detectionLeftTop, out detectionRightBottom);
QCARRuntimeUtilities.SelectRectTopLeftAndBottomRightForLandscapeLeft(trackingRegion, isMirrored, out trackingLeftTop, out trackingRightBottom);
// transform the coordinates into camera frame coord system
QCARRenderer.Vec2I camFrameDetectionLeftTop = QCARRuntimeUtilities.ScreenSpaceToCameraFrameCoordinates(detectionLeftTop, bgTextureViewPortRect, isMirrored, videoModeData);
QCARRenderer.Vec2I camFrameDetectionRightBottom = QCARRuntimeUtilities.ScreenSpaceToCameraFrameCoordinates(detectionRightBottom, bgTextureViewPortRect, isMirrored, videoModeData);
QCARRenderer.Vec2I camFrameTrackingLeftTop = QCARRuntimeUtilities.ScreenSpaceToCameraFrameCoordinates(trackingLeftTop, bgTextureViewPortRect, isMirrored, videoModeData);
QCARRenderer.Vec2I camFrameTrackingRightBottom = QCARRuntimeUtilities.ScreenSpaceToCameraFrameCoordinates(trackingRightBottom, bgTextureViewPortRect, isMirrored, videoModeData);
if (QCARWrapper.Instance.TextTrackerSetRegionOfInterest(camFrameDetectionLeftTop.x, camFrameDetectionLeftTop.y, camFrameDetectionRightBottom.x, camFrameDetectionRightBottom.y,
camFrameTrackingLeftTop.x, camFrameTrackingLeftTop.y, camFrameTrackingRightBottom.x, camFrameTrackingRightBottom.y, (int)CurrentUpDirection) == 0)
{
Debug.LogError(string.Format("Could not set region of interest: ({0}, {1}, {2}, {3}) - ({4}, {5}, {6}, {7})",
detectionRegion.x, detectionRegion.y, detectionRegion.width, detectionRegion.height,
trackingRegion.x, trackingRegion.y, trackingRegion.width, trackingRegion.height));
return(false);
}
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);
}
