Last change
on this file since 208 was
208,
checked in by Matthew Whiting, 18 years ago
|
- Enabled saving and reading in of a smoothed array, in manner directly analogous to that for the recon array.
- New file : src/Cubes/readSmooth.cc
- The other new functions go in existing files eg. saveImage.cc
- Renamed some functions (like writeHeader...) to be more obvious what they do.
- The reading in is taken care of by new function Cube::readSavedArrays() -- handles both smoothed and recon'd arrays.
- Associated parameters in Param class
- Clarified names of FITS header strings in duchamp.hh.
- Updated the documentation to describe the ability to smooth a cube.
- Added description of feedback mechanisms in the Install appendix.
- Also, Hanning class improved to guard against memory leaks.
|
File size:
1.0 KB
|
Rev | Line | |
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[201] | 1 | #ifndef HANNING_H |
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| 2 | #define HANNING_H |
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| 3 | |
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| 4 | #include <math.h> |
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| 5 | |
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| 6 | class Hanning |
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| 7 | { |
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| 8 | public: |
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[208] | 9 | Hanning(){allocated=false;}; |
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[201] | 10 | Hanning(int size){ |
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| 11 | if(size%2==0){ |
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| 12 | std::cerr << "Hanning: need an odd number for the size. " |
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| 13 | << "Changing "<< size << " to " << ++size<<".\n"; |
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| 14 | } |
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| 15 | hanningSize = size; |
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| 16 | coeffs = new float[size]; |
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[208] | 17 | allocated = true; |
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[201] | 18 | float a = (size+1.)/2.; |
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| 19 | for(int i=0;i<size;i++){ |
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| 20 | float x = i-(size-1)/2.; |
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| 21 | coeffs[i] = 0.5 + 0.5*cos(x * M_PI / a); |
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| 22 | } |
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| 23 | }; |
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[208] | 24 | virtual ~Hanning(){if(allocated) delete [] coeffs;}; |
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[201] | 25 | |
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| 26 | float *smooth(float *array, int npts){ |
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| 27 | float *newarray = new float[npts]; |
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| 28 | float scale = (hanningSize+1.)/2.; |
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| 29 | for(int i=0;i<npts;i++){ |
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| 30 | newarray[i] = 0.; |
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| 31 | for(int j=0;j<hanningSize;j++){ |
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| 32 | int x = j-(hanningSize-1)/2; |
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| 33 | if((i+x>0)&&(i+x<npts)) newarray[i]+=coeffs[j] * array[i+x]; |
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| 34 | } |
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| 35 | newarray[i] /= scale; |
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| 36 | } |
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| 37 | return newarray; |
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| 38 | }; |
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| 39 | |
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| 40 | |
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| 41 | private: |
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| 42 | int hanningSize; |
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| 43 | float *coeffs; |
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[208] | 44 | bool allocated; |
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[201] | 45 | |
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| 46 | }; |
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| 47 | |
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| 48 | #endif // HANNING_H |
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