private void button12_Click(object sender, EventArgs e)
{
optimization_motion_data_file = textBox19.Text;
timing_file = "timing data\\" + textBox27.Text + "-" + comboBox5.SelectedItem.ToString() + "-R" + comboBox9.SelectedItem.ToString() + "-M" + comboBox8.SelectedIndex + ".txt";
textBox21.AppendText("Recording motion trajectory. Data saved in: " + optimization_motion_data_file + "\r\n");
motion_tracking_controller.SetLoggerFilename(optimization_motion_data_file, timing_file);
motion_tracking_controller.SavingMotionDataEnable(true);
}