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LSSTDataManagementBasePackage
FindSetBits.h
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1 // -*- lsst-c++ -*-
2 
3 /*
4  * LSST Data Management System
5  * Copyright 2008, 2009, 2010 LSST Corporation.
6  *
7  * This product includes software developed by the
8  * LSST Project (http://www.lsst.org/).
9  *
10  * This program is free software: you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
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24 
35 #ifndef LSST_IP_DIFFIM_FINDSETBITS_H
36 #define LSST_IP_DIFFIM_FINDSETBITS_H
37 
38 #include "lsst/afw/image.h"
39 
40 namespace lsst {
41 namespace ip {
42 namespace diffim {
43 
44 
52  template <typename MaskT>
53  class FindSetBits {
54  public:
55  typedef typename MaskT::x_iterator x_iterator;
56 
58  _bits(0) {;}
59  virtual ~FindSetBits() {} ;
60 
61  // Clear the accumulators
62  void reset() { _bits = 0;}
63 
64  // Return the bits set
65  typename MaskT::Pixel getBits() const { return _bits; }
66 
67  // Work your magic
68  void apply(MaskT const& mask) {
69  reset();
70  for (int y = 0; y != mask.getHeight(); ++y) {
71  for (x_iterator ptr = mask.row_begin(y), end = mask.row_end(y); ptr != end; ++ptr) {
72  _bits |= (*ptr);
73  }
74  }
75  }
76 
77  private:
78  typename MaskT::Pixel _bits;
79  };
80 
81 }}} // end of namespace lsst::ip::diffim
82 
83 
84 #endif
85 
86 
87 
int y
void apply(MaskT const &mask)
Definition: FindSetBits.h:68
Class to accumulate Mask bits.
Definition: FindSetBits.h:53
MaskT::Pixel getBits() const
Definition: FindSetBits.h:65
An include file to include the header files for lsst::afw::image.
MaskT::x_iterator x_iterator
Definition: FindSetBits.h:55