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-Gaze position
-=============
-
-[GazeFeatures](../../argaze.md/#argaze.GazeFeatures) defines a [GazePosition](../../argaze.md/#argaze.GazeFeatures.GazePosition) class to handle point coordinates with a precision value.
-
-``` python
-from argaze import GazeFeatures
-
-# Define a basic gaze position
-gaze_position = GazeFeatures.GazePosition((123, 456))
-
-# Define a gaze position with a precision value
-gaze_position = GazeFeatures.GazePosition((789, 765), precision=10)
-
-# Access to gaze position value and precision
-print(f'position: {gaze_position.value}')
-print(f'precision: {gaze_position.precision}')
-
-```
-
-## Validity
-
-[GazeFeatures](../../argaze.md/#argaze.GazeFeatures) defines also a [UnvalidGazePosition](../../argaze.md/#argaze.GazeFeatures.UnvalidGazePosition) class that inherits from [GazePosition](../../argaze.md/#argaze.GazeFeatures.GazePosition) to handle case where no gaze position exists because of any specific device reason.
-
-``` python
-from argaze import GazeFeatures
-
-# Define a basic unvalid gaze position
-gaze_position = GazeFeatures.UnvalidGazePosition()
-
-# Define a basic unvalid gaze position with a message value
-gaze_position = GazeFeatures.UnvalidGazePosition("Something bad happened")
-
-# Access to gaze position validity
-print(f'validity: {gaze_position.valid}')
-
-```
-
-## Distance
-
-[GazePosition](../../argaze.md/#argaze.GazeFeatures.GazePosition) class provides a **distance** method to calculate the distance to another gaze position instance.
-
-![Distance](../../img/distance.png)
-
-``` python
-# Distance between A and B positions
-d = gaze_position_A.distance(gaze_position_B)
-``` 
-
-## Overlapping
-
-[GazePosition](../../argaze.md/#argaze.GazeFeatures.GazePosition) class provides an **overlap** method to test if a gaze position overlaps another one considering their precisions.
-
-![Gaze overlapping](../../img/overlapping.png)
-
-``` python
-# Check that A overlaps B
-if gaze_position_A.overlap(gaze_position_B): 
-
-        # Do something if A overlaps B
-        ...
-
-# Check that A overlaps B and B overlaps A
-if gaze_position_A.overlap(gaze_position_B, both=True): 
-
-        # Do something if A overlaps B AND B overlaps A
-        ...
-```
-
-## Timestamped gaze positions
-
-[TimeStampedGazePositions](../../argaze.md/#argaze.GazeFeatures.TimeStampedGazePositions) inherits from [TimeStampedBuffer](../../argaze.md/#argaze.DataStructures.TimeStampedBuffer) class to handle especially gaze positions.
-
-### Import from dataframe
-
-It is possible to load timestamped gaze positions from a [Pandas DataFrame](https://pandas.pydata.org/docs/getting_started/intro_tutorials/01_table_oriented.html#min-tut-01-tableoriented) object.
-
-```python
-import pandas
-
-# Load gaze positions from a CSV file into Panda Dataframe
-dataframe = pandas.read_csv('gaze_positions.csv', delimiter="\t", low_memory=False)
-
-# Convert Panda dataframe into TimestampedGazePositions buffer precising the use of each specific column labels
-ts_gaze_positions = GazeFeatures.TimeStampedGazePositions.from_dataframe(dataframe, timestamp = 'Recording timestamp [ms]', x = 'Gaze point X [px]', y = 'Gaze point Y [px]')
-
-```
-### Iterator
-
-Like [TimeStampedBuffer](../../argaze.md/#argaze.DataStructures.TimeStampedBuffer), [TimeStampedGazePositions](../../argaze.md/#argaze.GazeFeatures.TimeStampedGazePositions) class provides iterator feature:
-
-```python
-for timestamp, gaze_position in ts_gaze_positions.items():
-
-        # Do something with each gaze position
-        ...
-
-```