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classdef nfftTestcaseDelegateFile < nfftTestcaseDelegate
%NFFTTESTCASEDELEGATE Summary of this class goes here
% Detailed explanation goes here
properties(Hidden=true,SetAccess='protected',GetAccess='public');
filename = [];
end
methods
function h = nfftTestcaseDelegateFile(filename)
% h = h@nfftTestcaseDelegate(setup, destroy);
h.filename = filename;
end
function h = setup(h)
file = fopen(h.filename, 'r');
if file == -1
error('Cannot open file: %s', h.filename);
end
c = strfind(h.filename, '/');
if ~isempty(c)
c = c(end)+1;
else
c = 1;
end
fprintf('%-31s', h.filename(c:end));
% Dimensions.
[d,count] = fscanf(file, '%d', 1);
if count ~= 1
error('Unable to read d from file');
end
h.d = d;
% Bandwidths.
h.N = zeros(h.d,1);
for j=1:h.d
[N_j,count] = fscanf(file, '%d', 1);
if count ~= 1
error('Unable to read N from file');
end
h.N(j) = N_j;
end
% Number of nodes.
[M,count] = fscanf(file, '%d', 1);
if count ~= 1
error('Unable to read M from file');
end
h.M = M;
fprintf(' d = %-1d, N = [', h.d);
if h.d > 3
for j=1:h.d
if j > 1
fprintf(',');
end
fprintf('%-3d', h.N(j));
end
for j=1:4-h.d
fprintf('%s%-3s', ' ', '');
end
else
for j=1:h.d
if j > 1
fprintf(',');
end
fprintf('%-5d', h.N(j));
end
for j=1:3-h.d
fprintf('%s%-5s', ' ', '');
end
end
fprintf('],');
fprintf(' M = %-5d', h.M);
fprintf(' nthreads = %d', nfft_get_num_threads);
h.NN = prod(h.N);
% Nodes.
x = zeros(h.M, h.d);
for j=1:h.M
for t=1:h.d
[x_j_t,count] = fscanf(file, '%g', 1);
if count ~= 1
error('Unable to read x from file');
end
x(j,t) = x_j_t;
end
end
h.x = x;
% Fourier coefficients.
f_hat = zeros(h.NN,1);
for j=1:h.NN
[val_real,count] = fscanf(file, '%g', 1);
if count ~= 1
error('Unable to read fhat from file');
end
[val_imag,count] = fscanf(file, '%g', 1);
if count ~= 1
error('Unable to read fhat from file');
end
f_hat(j) = val_real + 1i*val_imag;
end
h.f_hat = f_hat;
% Reference function values.
f = zeros(h.M,1);
for j=1:h.M
[val_real,count] = fscanf(file, '%g', 1);
if count ~= 1
error('Unable to read f from file');
end
[val_imag,count] = fscanf(file, '%g', 1);
if count ~= 1
error('Unable to read f from file');
end
f(j) = val_real + 1i*val_imag;
if count ~= 1
error('Unable to read fhat from file');
end
end
h.f = f;
fclose(file);
end
function h = destroy(h)
h.d = [];
h.N = [];
h.NN = [];
h.M = [];
h.x = [];
h.f_hat = [];
h.f = [];
h = destroy@nfftTestcaseDelegate(h);
end
end
end
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