Correcting writing data generated by an electronic writing device

An electronic writing device comprising:

• a writing tip to enable writing on a writing surface;
• a positional sensor configured to sense, based at least in part on light received at the positional sensor, movement of the electronic writing device when writing on the writing surface, and generate writing data corresponding to the movement of the electronic writing device;
• a gyroscope configured to sense rotation of the electronic writing device and generate rotation data corresponding to the rotation;
• an accelerometer configured to sense acceleration of the electronic writing device and generate acceleration data corresponding to the acceleration of the electronic writing device;
• at least two lenses, each lens of the at least two lenses including a controllable aperture configured to selectively direct light to the positional sensor;
• and
• at least a memory and a processor to implement:
• a selector component configured to:
• determine a pitch angle of the electronic writing device from the acceleration data;
• and
• open the controllable aperture of one of the at least two lenses based on the pitch angle and a roll angle of the electronic writing device;
• and
• a correction component configured to determine the roll angle,
• the correction component further configured to, for a sample of the writing data generated by the positional sensor:
• calculate an offset angle of the electronic writing device relative to a reference axis of the positional sensor based at least in part on the rotation data generated by the gyroscope;
• determine a correction angle based on the offset angle;
• and
• adjust the sample of the writing data by applying the correction angle to the sample of the writing data.