/// <summary>
/// get collected data and remove it from ringbuffer
/// </summary>
/// <returns>all collected data</returns>
public double[,] get_board_data(int num_datapoints)
{
int size = get_board_data_count();
if (num_datapoints < 0)
{
throw new BrainFlowException((int)CustomExitCodes.INVALID_ARGUMENTS_ERROR);
}
size = Math.Min(size, num_datapoints);
int num_rows = BoardShim.get_num_rows(master_board_id);
double[] data_arr = new double[size * num_rows];
int ec = BoardControllerLibrary.get_board_data(size, data_arr, board_id, input_json);
if (ec != (int)CustomExitCodes.STATUS_OK)
{
throw new BrainFlowException(ec);
}
double[,] result = new double[num_rows, size];
for (int i = 0; i < num_rows; i++)
{
for (int j = 0; j < size; j++)
{
result[i, j] = data_arr[i * size + j];
}
}
return(result);
}