function set( v ) {
	/* eslint-disable no-invalid-this */
	var err = isValid( v );
	if ( err ) {
		throw err;
	}
	debug( 'Current value: %d.', this._translateX );

	this._translateX = v;
	debug( 'New Value: %d.', this._translateX );

	this.emit( CHANGE_EVENT );
}
Sets the horizontal translation.

@private
@param {NonNegativeInteger} v - translation
@throws {TypeError} must be a nonnegative integer