Create a mass budget from a CAD file (SCwRWA.mat).

------------------------------------------------------------------------
See also SCwRWA.mat, StringMatch
------------------------------------------------------------------------

%--------------------------------------------------------------------------
%  Copyright (c) 2002 Princeton Satellite Systems, Inc.
%  All rights reserved.
%--------------------------------------------------------------------------

fName = 'SCwRWA';
g = load(fName);

type   = {g.component(:).class};
types  = unique(type);
labels = char(types);

disp('----------------------------------------')
disp(['Mass Budget for ' fName])
disp('----------------------------------------')

mTotal = 0;
for k = 1:length(types)
  n = StringMatch(types{k},type);
  m = 0;
  for j = 1:length(n)
    m = m + g.component(n(j)).mass.mass;
  end
  mTotal = mTotal + m;
  fprintf('%s: %5.1f kg\n',labels(k,:),m);
end

fprintf('\nTarget spacecraft mass: %5.1f kg\n',g.mass.mass)
fprintf(  'Mass margin           : %3.2f%%\n',(g.mass.mass-mTotal)/g.mass.mass*100)


%--------------------------------------

----------------------------------------
Mass Budget for SCwRWA
----------------------------------------
battery            :   1.0 kg
box                : 946.0 kg
magnetic_torquer   :   3.0 kg
magnetometer       :   1.0 kg
reaction_wheel     :   5.2 kg
solar_array_back   :  20.0 kg
solar_array_front  :  20.0 kg
star_camera        :   2.8 kg
two_axis_sun_sensor:   1.0 kg

Target spacecraft mass: 1000.0 kg
Mass margin           : 0.00%