char NXTLineLeaderSnapshot ( const byte &  port, const byte &  i2caddr  )

inline

Take NXTLineLeader line snapshot.

Takes a snapshot of the line under the sensor and tracks that position in subsequent tracking operations. This function also will set color inversion if it sees a white line on a black background. The port must be configured as a Lowspeed port before using this function.

Parameters

port	The sensor port. See NBC Input port constants.
i2caddr	The sensor I2C address. See sensor documentation for this value.

Returns

A status code indicating whether the operation completed successfully or not. See CommLSCheckStatusType for possible Result values.

Examples:

ex_NXTLineLeader.nxc.