Writing device with electromagnetic tracking

A method, comprising:

• receiving first electromagnetic (EM) pose data based on EM field values indicative of a first pose of an EM transmitter in relation to an EM receiver;
• and
• determining a pose of a writing device based on the first EM pose data.

A pose tracking system, comprising:

• a base station device that includes one of an electromagnetic (EM) transmitter or an EM receiver module for the pose tracking system. and
• a computer input device that includes the other of the EM transmitter and EM receiver modules;
• wherein the pose tracking system is configured to employ the EM transmitter and EM receiver modules to generate and collect EM pose data indicating a relative pose between the EM transmitter and EM receiver module and to process the EM pose data to identify a pose of the computer input device based on the relative pose.

(canceled)