internal void initializeGesture()
{
// Initiation successful, we can signal the beginning of rotation angle reading:
left_arm_rotation.rot_tracking_state = ArmRotationTrackingState.Initialized;
right_arm_rotation.rot_tracking_state = ArmRotationTrackingState.Initialized;
// Initialing the rotation state:
left_arm_rotation.previous_rot_state = ArmRotationalState.NotRotating;
right_arm_rotation.previous_rot_state = ArmRotationalState.NotRotating;
// Passing this shoulder to elbow vector so that on the next event we can compare:
left_arm_rotation.previous_frame_vector = GestureAuxilaryMethods.updateLimbVectors(JointType.ShoulderLeft,
JointType.ElbowLeft);
right_arm_rotation.previous_frame_vector = GestureAuxilaryMethods.updateLimbVectors(JointType.ShoulderRight,
JointType.ElbowRight);
}
public void runGestureAnalysis()
{
stopWatch_single_event.Reset();
stopWatch_single_event.Start();
TextInformation.insert_main_text_block("Stopwatch: " + stopWatch.Elapsed, 3);
TextInformation.insert_main_text_block("Running Gesture: " + running_gesture.ToString(), 1);
// I have moved the next 4 blocks of codes out of the if statement...
/* Searching State: CHANGED FROM WRIST TO ELBOW */
Joint left_elbow = body.Joints[JointType.ElbowLeft];
Joint right_elbow = body.Joints[JointType.ElbowRight];
// We make a call to this method to store previous positions:
GestureAuxilaryMethods.managePrevArray(left_elbow, ref lf_elbow_prev_pos, PREV_FRAMES_ARRAY_LENGTH);
GestureAuxilaryMethods.managePrevArray(right_elbow, ref rt_elbow_prev_pos, PREV_FRAMES_ARRAY_LENGTH);
// We make a call to the following methods in order to update the state of elbows:
GestureAuxilaryMethods.isJointStable(stillness_sensitivity, JointType.ElbowLeft, lf_elbow_prev_pos, PREV_FRAMES_ARRAY_LENGTH,
ref left_elbow_general_state);
GestureAuxilaryMethods.isJointStable(stillness_sensitivity, JointType.ElbowRight, rt_elbow_prev_pos, PREV_FRAMES_ARRAY_LENGTH,
ref right_elbow_general_state);
// The if else block below is to see if we are in the searching (for gesture) state or reading (the gesture) state:
if (running_gesture == GestureRunningState.None || running_gesture == GestureRunningState.Unknown)
{
if (left_elbow_general_state == JointGeneralState.Still && right_elbow_general_state == JointGeneralState.Still)
{
// Calling this method to see if a panel rotation gesture is possible:
if (Gesture_PanelRotation.checkPanelRotationGesture(horizontal_stretch_sensitivity, ref left_arm_position, ref right_arm_position))
{
// We can now initialize a PanelRotation class and go on further:
panel_rotation = new Gesture_PanelRotation(left_arm_position, right_arm_position, horizontal_stretch_sensitivity);
panel_rotation.initializeGesture();
// Update the gesture state:
running_gesture = GestureRunningState.PanelRotation;
// Start the stopwatch, we will wait .5 seconds for the gesture reading to begin:
stopWatch_trigger.Start();
}
}
}
else /* Reading State: */
{
if (stopWatch_trigger.ElapsedMilliseconds > 500)
{
int reading_result = 0;
// There is a gesture that is to be read, we need to check which:
if (running_gesture == GestureRunningState.PanelRotation)
{
reading_result = panel_rotation.readArmRotation(left_elbow_general_state, right_elbow_general_state);
}
if (reading_result == -1)
{
// Discontinue the reading of the gesture:
running_gesture = GestureRunningState.None;
// Clear out the previous hand positions arrays:
lf_elbow_prev_pos = new Joint[PREV_FRAMES_ARRAY_LENGTH];
rt_elbow_prev_pos = new Joint[PREV_FRAMES_ARRAY_LENGTH];
// Clear out the statuses of Limbs:
left_elbow_general_state = JointGeneralState.Unknown;
right_elbow_general_state = JointGeneralState.Unknown;
// Reset the stopwatch:
stopWatch_trigger.Reset();
}
}
}
TextInformation.insert_main_text_block("Event: " + stopWatch_single_event.Elapsed, 3);
TextInformation.update_main_text();
}
// This method returns 0 if everything went well, -1 if reading of the gesture is stopped:
internal int readArmRotation(JointGeneralState left_elbow_general_state, JointGeneralState right_elbow_general_state)
{
// Moved these two lines out of the if statement:
shoulder_to_elbow_left = GestureAuxilaryMethods.updateLimbVectors(JointType.ShoulderLeft, JointType.ElbowLeft);
shoulder_to_elbow_right = GestureAuxilaryMethods.updateLimbVectors(JointType.ShoulderRight, JointType.ElbowRight);
// Checking the boundary conditions to see if we can actually do the reading:
if (boundaryConditions(left_elbow_general_state, right_elbow_general_state) == true &&
(left_arm_rotation.rot_tracking_state == ArmRotationTrackingState.Tracking ||
left_arm_rotation.rot_tracking_state == ArmRotationTrackingState.Initialized) &&
(right_arm_rotation.rot_tracking_state == ArmRotationTrackingState.Tracking ||
right_arm_rotation.rot_tracking_state == ArmRotationTrackingState.Initialized))
{
left_arm_rotation.rot_tracking_state = ArmRotationTrackingState.Tracking;
right_arm_rotation.rot_tracking_state = ArmRotationTrackingState.Tracking;
}
else
{
left_arm_rotation.rot_tracking_state = ArmRotationTrackingState.NotTracking;
right_arm_rotation.rot_tracking_state = ArmRotationTrackingState.NotTracking;
}
if (left_arm_rotation.rot_tracking_state == ArmRotationTrackingState.Tracking &&
right_arm_rotation.rot_tracking_state == ArmRotationTrackingState.Tracking)
{
updateRotationStatus();
updateArmStatus();
//TextInformation.insert_main_text_block("Left Arm: " + left_arm_rotation.previous_angles[0].ToString(), 2);
//TextInformation.insert_main_text_block("Right Arm: " + right_arm_rotation.previous_angles[0].ToString(), 2);
// Lets stabialize the angle:
left_arm_rotation.stabializeAngle();
right_arm_rotation.stabializeAngle();
TextInformation.insert_main_text_block("Angle Left Arm: " + left_arm_rotation.angle.ToString("n4"), 1);
TextInformation.insert_main_text_block("Angle Right Arm: " + right_arm_rotation.angle.ToString("n4"), 1);
if (left_arm_rotation.enough_time_at_angle == true && right_arm_rotation.enough_time_at_angle == true)
{
TextInformation.insert_main_text_block("Sending Signal", 1);
// Terminating the gesture reading. This might be changed later on:
//left_arm_rotation.rot_tracking_state = ArmRotationTrackingState.NotTracking;
//right_arm_rotation.rot_tracking_state = ArmRotationTrackingState.NotTracking;
}
else
{
TextInformation.insert_main_text_block("NOT Sending Signal", 1);
}
left_arm_rotation.frame_counter++;
right_arm_rotation.frame_counter++;
// Updating previous vectors:
left_arm_rotation.previous_frame_vector = shoulder_to_elbow_left;
right_arm_rotation.previous_frame_vector = shoulder_to_elbow_right;
return(0);
}
else
{
left_arm_rotation.previous_rot_state = ArmRotationalState.NotRotating;
right_arm_rotation.previous_rot_state = ArmRotationalState.NotRotating;
return(-1);
}
}
