102 lines
2.7 KiB
Matlab
102 lines
2.7 KiB
Matlab
function[obj] = read_ASC(obj)
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%% low level function to read in asc data from Eyelink eyetracker data
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datafile = obj.datafile;
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samples=[];
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events ={};
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load_processed_data = 0;
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eye = 'left'; %% default assume left eye
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[base file ext] = fileparts(datafile);
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target_dir = [base filesep file '.matlab'];
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if (exist(target_dir, 'dir') == 0)
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mkdir(target_dir);
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end
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cd(target_dir);
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display(['Parsing file : ' file]);
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%display_and_log(['Parsing file : ' file], 1);
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%display_and_log(['Date : ' datestr(now)], 0);
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target_raw = [target_dir filesep file '_raw.mat'];
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target_processed = [target_dir filesep file '_processed.mat'];
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settings.target_raw = target_raw;
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settings.target_processed = target_processed;
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if exist([target_dir filesep file '_processed.mat'], 'file');
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display(sprintf('*) Loading data from file : %s', target_processed));
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file_contents = load(target_processed);
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obj = file_contents.obj;
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%data = file_contents.data;
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load_processed_data = 1;
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elseif exist([target_dir filesep file '_raw.mat'], 'file');
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display(sprintf('*) Loading data from file : %s', target_raw));
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file_contents= load(target_raw);
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data = file_contents.data;
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else
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lc=0;
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fp = fopen(datafile,'r');
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i=1; j=1; m=1;
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data_flag = 0;
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if (isunix)
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cmd = ['wc ' regexprep(datafile,' ', '\\ ') '|awk ''{print $1''}'];
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cmd = regexprep(cmd,'\(', '\\('); cmd = regexprep(cmd,'\)', '\\)');
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[status lines_txt] = system(cmd);
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[status events_txt] = system(['grep -c "^[0-9*" ' regexprep(datafile,' ', '\\ ') '|awk ''{print $1''}']);
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else
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[status lines_txt] = system(['find /c ' datafile]);
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end
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lines = str2num(lines_txt);
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nevents = str2num(events_txt);
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progressbar = waitbar(0, 'Reading data file...');
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samples = nan(lines, 4);
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events = cell(1, nevents);
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while(~feof(fp))
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if(mod(lc, 1000) ==0)
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% display(sprintf('working on line %d', lc));
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waitbar(lc / lines, progressbar, sprintf('Reading data file ... : %d %%', round(100*(lc / lines))));
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end
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line=fgetl(fp);
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if (data_flag & regexp(line, '^[0-9]*'))
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samples(i,:) = sscanf(line, '%d %f %f %f %*s');
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i=i+1;
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else
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events{j} = line;
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j=j+1;
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end
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if regexp(line,'^SAMPLES')
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data_flag = 1;
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end
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if regexp(line,'^START')
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eye = sscanf(line, '%*s %*s %s %*s');
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end
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lc=lc+1;
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end
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fclose(fp);
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data.samples = samples;
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data.events = events;
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data.eye = lower(eye);
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save(target_raw, 'data');
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close(progressbar);
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end
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