fixed UDR problems in the agilent_binary class

David Mayerich
1 parent 7cd9bfa8
Showing 1 changed file with 4 additions and 1 deletions Show diff stats
stim/envi/agilent_binary.h
@@ -202,7 +202,10 @@ public:
 		//double int_delta = 0.00012656;									//interferogram sample spacing in centimeters
 		double int_delta = (1.0 / ELWN) * ((double)UDR / 2.0);			//calculate the interferogram spacing
 		double int_length = int_delta * R[2];							//interferogram length in centimeters
-		double fft_delta = 1/int_length;								//spectrum spacing (in inverse centimeters, wavenumber
+		double fft_delta = 1/int_length;								//spectrum spacing (in inverse centimeters, wavenumber)
+		double fft_max = fft_delta * R[2]/2;							//get the maximum wavenumber value supported by the specified number of interferogram samples
+
+		if(band_max > fft_max) band_max = fft_max;						//the user gave a band outside of the FFT range, reset the band to the maximum available
  
 		size_t start_i = (size_t)std::ceil(band_min / fft_delta);				//calculate the first band to store
 		size_t size_i = (size_t)std::floor(band_max / fft_delta) - start_i;		//calculate the number of bands to store