spec.m

%-----------------------------------------------------------------------------
%
% Copyright (C) 2016
% ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>
% P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
%
% This program is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program.  If not, see <http://www.gnu.org/licenses/>.
%
%-----------------------------------------------------------------------------
% Author: E. Kooistra, 2016
%
% Purpose : Image spectrum per block of data
% Description :

function state = spec(ctrl, data)
    % Data imager
    ctrl.pwr(ctrl.block_nr, :) = db(abs(data))/-200;
    %ctrl.pwr(ctrl.block_nr, 1)
    ctrl.block_nr
    ctrl.img = image(ctrl.pwr');
    %set(ctrl.img, 'CData', ctrl.pwr');
    %drawnow;
    
    % Keep pwr buffer for next call
    state = ctrl;