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lsst::sphgeom::detail::PixelFinder< Derived, RegionType, InteriorOnly, NumVertices > Class Template Reference

#include <PixelFinder.h>

Public Member Functions

 PixelFinder (RangeSet &ranges, RegionType const &region, int level, size_t maxRanges)
 
void visit (UnitVector3d const *pixel, uint64_t index, int level)
 

Detailed Description

template<typename Derived, typename RegionType, bool InteriorOnly, size_t NumVertices>
class lsst::sphgeom::detail::PixelFinder< Derived, RegionType, InteriorOnly, NumVertices >

Definition at line 76 of file PixelFinder.h.

Constructor & Destructor Documentation

◆ PixelFinder()

template<typename Derived, typename RegionType, bool InteriorOnly, size_t NumVertices>
lsst::sphgeom::detail::PixelFinder< Derived, RegionType, InteriorOnly, NumVertices >::PixelFinder ( RangeSet & ranges,
RegionType const & region,
int level,
size_t maxRanges )
inline

Definition at line 78 of file PixelFinder.h.

81 :
82 _ranges{&ranges},
83 _region{&region},
84 _level{level},
85 _desiredLevel{level},
86 _maxRanges{maxRanges == 0 ? maxRanges - 1 : maxRanges}
87 {}

Member Function Documentation

◆ visit()

template<typename Derived, typename RegionType, bool InteriorOnly, size_t NumVertices>
void lsst::sphgeom::detail::PixelFinder< Derived, RegionType, InteriorOnly, NumVertices >::visit ( UnitVector3d const * pixel,
uint64_t index,
int level )
inline

Definition at line 89 of file PixelFinder.h.

92 {
93 if (level > _level) {
94 // Nothing to do - the subdivision level has been reduced
95 // or a pixel that completely contains the search region
96 // has been found.
97 return;
98 }
99 // Determine the relationship between the pixel and the search region.
101 if ((r & DISJOINT) != 0) {
102 // The pixel is disjoint from the search region.
103 return;
104 }
105 if ((r & WITHIN) != 0) {
106 // The tree traversal has reached a pixel that is entirely within
107 // the search region.
108 _insert(index, level);
109 return;
110 } else if (level == _level) {
111 // The tree traversal has reached a leaf.
112 if (!InteriorOnly) {
113 _insert(index, level);
114 }
115 return;
116 }
117 static_cast<Derived *>(this)->subdivide(pixel, index, level);
118 }
Relationship relate(VertexIterator const begin, VertexIterator const end, Box const &b)

The documentation for this class was generated from the following file: