AreaScanSlow.m

% load the DLL
if computer('arch') == 'win64'
    dll = NET.addAssembly('C:\Program Files\Wasatch Photonics\Wasatch.NET\WasatchNET.dll');
else
    dll = NET.addAssembly('C:\Program Files (x86)\Wasatch Photonics\Wasatch.NET\WasatchNET.dll');
end

% get a handle to the Driver Singleton
driver = WasatchNET.Driver.getInstance();
fprintf('Using %s from MATLAB %s\n', driver.version, version);

% configure logging
driver.logger.setPathname('C:\temp\matlab.log');
driver.logger.level = WasatchNET.LogLevel.DEBUG;

% enumerate any connected spectrometers
numberOfSpectrometers = driver.openAllSpectrometers();
fprintf('%d spectrometers found.\n', numberOfSpectrometers);
if numberOfSpectrometers <= 0
    return;
end

% open the first spectrometer found
spectrometer = driver.getSpectrometer(0);

% grab some key properties
pixels      = int32(spectrometer.pixels);
wavelengths = spectrometer.wavelengths;

% display summary
fprintf('Found %s %s with %d pixels (%.2f, %.2fnm)\n', ...
    char(spectrometer.model), char(spectrometer.serialNumber), pixels, wavelengths(1), wavelengths(wavelengths.Length));
fprintf('Spectrometer has FW %s and FPGA %s\n', spectrometer.firmwareRevision, spectrometer.fpgaRevision);

% configure acquisition parameters
spectrometer.integrationTimeMS = 100;
spectrometer.detectorGain = 30;
spectrometer.fastAreaScan = false;

% define ROI
startLine = 200;
stopLine = 801;
lines = stopLine - startLine - 1;

% configure ROI in spectrometer
spectrometer.detectorStartLine = startLine;
spectrometer.detectorStopLine = stopLine;
spectrometer.areaScanEnabled = true;

% load area scan data
image = zeros(lines, pixels);
for line = startLine:(stopLine - 1)
    spectrum = int32(spectrometer.getSpectrum());
    if length(spectrum) == 0
        fprintf('read zero pixels on line %d of (%d, %d)\n', ...
            line, startLine, stopLine);
        break;
    end

    detector_row = spectrum(1);
    image_row = detector_row - startLine + 1;
    spectrum(1) = spectrum(2);
    fprintf('read line %4d (should match detector_row %4d, image_row %4d)\n', line, detector_row, image_row);
   
    image(image_row, :) = spectrum;
end

% display the area scan image
figure;
imshow(mat2gray(image));

% close the driver
driver.closeAllSpectrometers();