1 <!-- Copyright 2008 Lubomir Bourdev and Hailin Jin
3 Distributed under the Boost Software License, Version 1.0.
4 (See accompanying file LICENSE_1_0.txt or copy at
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9 Copyright 2005-2007 Adobe Systems Incorporated
10 Distributed under the MIT License (see accompanying file LICENSE_1_0_0.txt
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22 <TITLE>Generic Image Library: locator.hpp Source File
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40 <div class=
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41 <h1>locator.hpp
</h1><a href=
"locator_8hpp.html">Go to the documentation of this file.
</a><div class=
"fragment"><pre class=
"fragment"><a name=
"l00001"></a>00001 <span class=
"comment">/*
</span>
42 <a name=
"l00002"></a>00002 <span class=
"comment"> Copyright
2005-
2007 Adobe Systems Incorporated
</span>
43 <a name=
"l00003"></a>00003 <span class=
"comment"> </span>
44 <a name=
"l00004"></a>00004 <span class=
"comment"> Use, modification and distribution are subject to the Boost Software License,
</span>
45 <a name=
"l00005"></a>00005 <span class=
"comment"> Version
1.0. (See accompanying file LICENSE_1_0.txt or copy at
</span>
46 <a name=
"l00006"></a>00006 <span class=
"comment"> http://www.boost.org/LICENSE_1_0.txt).
</span>
47 <a name=
"l00007"></a>00007 <span class=
"comment"></span>
48 <a name=
"l00008"></a>00008 <span class=
"comment"> See http://opensource.adobe.com/gil for most recent version including documentation.
</span>
49 <a name=
"l00009"></a>00009 <span class=
"comment">*/
</span>
50 <a name=
"l00010"></a>00010
51 <a name=
"l00011"></a>00011 <span class=
"comment">/*************************************************************************************************/
</span>
52 <a name=
"l00012"></a>00012
53 <a name=
"l00013"></a>00013 <span class=
"preprocessor">#ifndef GIL_LOCATOR_H
</span>
54 <a name=
"l00014"></a>00014 <span class=
"preprocessor"></span><span class=
"preprocessor">#define GIL_LOCATOR_H
</span>
55 <a name=
"l00015"></a>00015 <span class=
"preprocessor"></span>
56 <a name=
"l00016"></a>00016
57 <a name=
"l00025"></a>00025
58 <a name=
"l00026"></a>00026 <span class=
"preprocessor">#include
<cstddef
></span>
59 <a name=
"l00027"></a>00027 <span class=
"preprocessor">#include
<cassert
></span>
60 <a name=
"l00028"></a>00028 <span class=
"preprocessor">#include
"<a class="code
" href="g_i_l_0243.html
" title="pixel iterator support
">pixel_iterator.hpp</a>"</span>
61 <a name=
"l00029"></a>00029
62 <a name=
"l00033"></a>00033
63 <a name=
"l00034"></a>00034
64 <a name=
"l00035"></a>00035 <span class=
"keyword">namespace
</span>boost {
<span class=
"keyword">namespace
</span>gil {
65 <a name=
"l00036"></a>00036
66 <a name=
"l00037"></a>00037 <span class=
"comment">//forward declarations
</span>
67 <a name=
"l00038"></a>00038 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> P
> ptrdiff_t memunit_step(
<span class=
"keyword">const
</span> P*);
68 <a name=
"l00039"></a>00039 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> P
> P* memunit_advanced(
<span class=
"keyword">const
</span> P* p, ptrdiff_t diff);
69 <a name=
"l00040"></a>00040 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> P
> P
& memunit_advanced_ref(P* p, ptrdiff_t diff);
70 <a name=
"l00041"></a>00041 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Iterator,
<span class=
"keyword">typename
</span> D
> <span class=
"keyword">struct
</span>iterator_add_deref;
71 <a name=
"l00042"></a>00042 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">class
</span>point2;
72 <a name=
"l00043"></a>00043 <span class=
"keyword">namespace
</span>detail {
73 <a name=
"l00044"></a>00044 <span class=
"comment">// helper class specialized for each axis of pixel_2d_locator
</span>
74 <a name=
"l00045"></a>00045 <span class=
"keyword">template
</span> <std::
<span class=
"keywordtype">size_t
</span> D,
<span class=
"keyword">typename
</span> Loc
> <span class=
"keyword">class
</span>locator_axis;
75 <a name=
"l00046"></a>00046 }
76 <a name=
"l00047"></a>00047 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>dynamic_x_step_type;
77 <a name=
"l00048"></a>00048 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>dynamic_y_step_type;
78 <a name=
"l00049"></a>00049
79 <a name=
"l00050"></a>00050 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>channel_type;
80 <a name=
"l00051"></a>00051 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>color_space_type;
81 <a name=
"l00052"></a>00052 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>channel_mapping_type;
82 <a name=
"l00053"></a>00053 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>is_planar;
83 <a name=
"l00054"></a>00054 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>num_channels;
84 <a name=
"l00055"></a>00055
85 <a name=
"l00056"></a>00056 <span class=
"comment">// The type of a locator or a view that has X and Y swapped. By default it is the same
</span>
86 <a name=
"l00057"></a>00057 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> T
> <span class=
"keyword">struct
</span>transposed_type {
87 <a name=
"l00058"></a>00058 <span class=
"keyword">typedef
</span> T type;
88 <a name=
"l00059"></a>00059 };
89 <a name=
"l00060"></a>00060
90 <a name=
"l00119"></a>00119
91 <a name=
"l00120"></a>00120 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Loc,
<span class=
"keyword">typename
</span> XIterator,
<span class=
"keyword">typename
</span> YIterator
> <span class=
"comment">// The concrete subclass, the X-iterator and the Y-iterator
</span>
92 <a name=
"l00121"></a><a class=
"code" href=
"g_i_l_0058.html">00121</a> <span class=
"keyword">class
</span><a class=
"code" href=
"g_i_l_0058.html" title=
"base class for models of PixelLocatorConceptPixel locator is similar to a pixel iterator...">pixel_2d_locator_base
</a> {
93 <a name=
"l00122"></a>00122 <span class=
"keyword">public
</span>:
94 <a name=
"l00123"></a>00123 <span class=
"keyword">typedef
</span> XIterator x_iterator;
95 <a name=
"l00124"></a>00124 <span class=
"keyword">typedef
</span> YIterator y_iterator;
96 <a name=
"l00125"></a>00125
97 <a name=
"l00126"></a>00126 <span class=
"comment">// typedefs required by ConstRandomAccessNDLocatorConcept
</span>
98 <a name=
"l00127"></a>00127 <span class=
"keyword">static
</span> <span class=
"keyword">const
</span> std::size_t num_dimensions=
2;
99 <a name=
"l00128"></a>00128 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> std::iterator_traits
<x_iterator
>::value_type value_type;
100 <a name=
"l00129"></a>00129 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> std::iterator_traits
<x_iterator
>::reference reference;
<span class=
"comment">// result of dereferencing
</span>
101 <a name=
"l00130"></a>00130 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> std::iterator_traits
<x_iterator
>::difference_type coord_t;
<span class=
"comment">//
1D difference type (same for all dimensions)
</span>
102 <a name=
"l00131"></a>00131 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point2
<coord_t
></a> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>;
<span class=
"comment">// result of operator-(locator,locator)
</span>
103 <a name=
"l00132"></a>00132 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>;
104 <a name=
"l00133"></a>00133 <span class=
"keyword">template
</span> <std::
<span class=
"keywordtype">size_t
</span> D
> <span class=
"keyword">struct
</span>axis {
105 <a name=
"l00134"></a>00134 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> detail::locator_axis
<D,Loc
>::coord_t coord_t;
106 <a name=
"l00135"></a>00135 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> detail::locator_axis
<D,Loc
>::iterator iterator;
107 <a name=
"l00136"></a>00136 };
108 <a name=
"l00137"></a>00137
109 <a name=
"l00138"></a>00138 <span class=
"comment">// typedefs required by ConstRandomAccess2DLocatorConcept
</span>
110 <a name=
"l00139"></a>00139 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> point_t::template axis
<0>::coord_t x_coord_t;
111 <a name=
"l00140"></a>00140 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> point_t::template axis
<1>::coord_t y_coord_t;
112 <a name=
"l00141"></a>00141
113 <a name=
"l00142"></a>00142 <span class=
"keywordtype">bool
</span> operator!=(
<span class=
"keyword">const
</span> Loc
& p)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> !(concrete()==p); }
114 <a name=
"l00143"></a>00143
115 <a name=
"l00144"></a>00144 x_iterator x_at(x_coord_t dx, y_coord_t dy)
<span class=
"keyword"> const
</span>{ Loc tmp=concrete(); tmp+=
<a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>(dx,dy);
<span class=
"keywordflow">return
</span> tmp.x(); }
116 <a name=
"l00145"></a>00145 x_iterator x_at(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{ Loc tmp=concrete(); tmp+=d;
<span class=
"keywordflow">return
</span> tmp.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>(); }
117 <a name=
"l00146"></a>00146 y_iterator y_at(x_coord_t dx, y_coord_t dy)
<span class=
"keyword"> const
</span>{ Loc tmp=concrete(); tmp+=
<a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>(dx,dy);
<span class=
"keywordflow">return
</span> tmp.y(); }
118 <a name=
"l00147"></a>00147 y_iterator y_at(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{ Loc tmp=concrete(); tmp+=d;
<span class=
"keywordflow">return
</span> tmp.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>(); }
119 <a name=
"l00148"></a>00148 Loc xy_at(x_coord_t dx, y_coord_t dy)
<span class=
"keyword"> const
</span>{ Loc tmp=concrete(); tmp+=
<a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>(dx,dy);
<span class=
"keywordflow">return
</span> tmp; }
120 <a name=
"l00149"></a>00149 Loc xy_at(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{ Loc tmp=concrete(); tmp+=d;
<span class=
"keywordflow">return
</span> tmp; }
121 <a name=
"l00150"></a>00150
122 <a name=
"l00151"></a>00151 <span class=
"keyword">template
</span> <std::
<span class=
"keywordtype">size_t
</span> D
> <span class=
"keyword">typename
</span> axis
<D
>::iterator
& axis_iterator() {
<span class=
"keywordflow">return
</span> detail::locator_axis
<D,Loc
>()(concrete()); }
123 <a name=
"l00152"></a>00152 <span class=
"keyword">template
</span> <std::
<span class=
"keywordtype">size_t
</span> D
> <span class=
"keyword">typename
</span> axis
<D
>::iterator
<span class=
"keyword">const
</span>& axis_iterator()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> detail::locator_axis
<D,Loc
>()(concrete()); }
124 <a name=
"l00153"></a>00153 <span class=
"keyword">template
</span> <std::
<span class=
"keywordtype">size_t
</span> D
> <span class=
"keyword">typename
</span> axis
<D
>::iterator axis_iterator(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">point_t
</a>& p)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> detail::locator_axis
<D,Loc
>()(concrete(),p); }
125 <a name=
"l00154"></a>00154
126 <a name=
"l00155"></a>00155 reference operator()(x_coord_t dx, y_coord_t dy)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> *x_at(dx,dy); }
127 <a name=
"l00156"></a>00156 reference operator[](
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> *x_at(d.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>,d.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>); }
128 <a name=
"l00157"></a>00157
129 <a name=
"l00158"></a>00158 reference operator*()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> *concrete().x(); }
130 <a name=
"l00159"></a>00159
131 <a name=
"l00160"></a>00160 Loc
& operator+=(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d) { concrete().x()+=d.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>; concrete().y()+=d.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>;
<span class=
"keywordflow">return
</span> concrete(); }
132 <a name=
"l00161"></a>00161 Loc
& operator-=(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d) { concrete().x()-=d.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>; concrete().y()-=d.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>;
<span class=
"keywordflow">return
</span> concrete(); }
133 <a name=
"l00162"></a>00162
134 <a name=
"l00163"></a>00163 Loc operator+(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> xy_at(d); }
135 <a name=
"l00164"></a>00164 Loc operator-(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> xy_at(-d); }
136 <a name=
"l00165"></a>00165
137 <a name=
"l00166"></a>00166 <span class=
"comment">// Some locators can cache
2D coordinates for faster subsequent access. By default there is no caching
</span>
138 <a name=
"l00167"></a>00167 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">cached_location_t
</a>;
139 <a name=
"l00168"></a>00168 <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">cached_location_t
</a> cache_location(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> d; }
140 <a name=
"l00169"></a>00169 <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">cached_location_t
</a> cache_location(x_coord_t dx, y_coord_t dy)
<span class=
"keyword">const
</span>{
<span class=
"keywordflow">return
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>(dx,dy); }
141 <a name=
"l00170"></a>00170
142 <a name=
"l00171"></a>00171 <span class=
"keyword">private
</span>:
143 <a name=
"l00172"></a>00172 Loc
& concrete() {
<span class=
"keywordflow">return
</span> (Loc
&)*
<span class=
"keyword">this
</span>; }
144 <a name=
"l00173"></a>00173 <span class=
"keyword">const
</span> Loc
& concrete()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> (
<span class=
"keyword">const
</span> Loc
&)*
<span class=
"keyword">this
</span>; }
145 <a name=
"l00174"></a>00174
146 <a name=
"l00175"></a>00175 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> X
> <span class=
"keyword">friend
</span> <span class=
"keyword">class
</span>pixel_2d_locator;
147 <a name=
"l00176"></a>00176 };
148 <a name=
"l00177"></a>00177
149 <a name=
"l00178"></a>00178 <span class=
"comment">// helper classes for each axis of pixel_2d_locator_base
</span>
150 <a name=
"l00179"></a>00179 <span class=
"keyword">namespace
</span>detail {
151 <a name=
"l00180"></a>00180 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Loc
>
152 <a name=
"l00181"></a>00181 <span class=
"keyword">class
</span>locator_axis
<0,Loc
> {
153 <a name=
"l00182"></a>00182 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> Loc::point_t point_t;
154 <a name=
"l00183"></a>00183 <span class=
"keyword">public
</span>:
155 <a name=
"l00184"></a>00184 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> point_t::template axis
<0>::coord_t coord_t;
156 <a name=
"l00185"></a>00185 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> Loc::x_iterator iterator;
157 <a name=
"l00186"></a>00186
158 <a name=
"l00187"></a>00187 <span class=
"keyword">inline
</span> iterator
& operator()( Loc
& loc)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> loc.x(); }
159 <a name=
"l00188"></a>00188 <span class=
"keyword">inline
</span> iterator
<span class=
"keyword">const
</span>& operator()(
<span class=
"keyword">const
</span> Loc
& loc)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> loc.x(); }
160 <a name=
"l00189"></a>00189 <span class=
"keyword">inline
</span> iterator operator()( Loc
& loc,
<span class=
"keyword">const
</span> point_t
& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> loc.x_at(d); }
161 <a name=
"l00190"></a>00190 <span class=
"keyword">inline
</span> iterator operator()(
<span class=
"keyword">const
</span> Loc
& loc,
<span class=
"keyword">const
</span> point_t
& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> loc.x_at(d); }
162 <a name=
"l00191"></a>00191 };
163 <a name=
"l00192"></a>00192
164 <a name=
"l00193"></a>00193 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Loc
>
165 <a name=
"l00194"></a>00194 <span class=
"keyword">class
</span>locator_axis
<1,Loc
> {
166 <a name=
"l00195"></a>00195 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> Loc::point_t point_t;
167 <a name=
"l00196"></a>00196 <span class=
"keyword">public
</span>:
168 <a name=
"l00197"></a>00197 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> point_t::template axis
<1>::coord_t coord_t;
169 <a name=
"l00198"></a>00198 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> Loc::y_iterator iterator;
170 <a name=
"l00199"></a>00199
171 <a name=
"l00200"></a>00200 <span class=
"keyword">inline
</span> iterator
& operator()( Loc
& loc)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> loc.y(); }
172 <a name=
"l00201"></a>00201 <span class=
"keyword">inline
</span> iterator
<span class=
"keyword">const
</span>& operator()(
<span class=
"keyword">const
</span> Loc
& loc)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> loc.y(); }
173 <a name=
"l00202"></a>00202 <span class=
"keyword">inline
</span> iterator operator()( Loc
& loc,
<span class=
"keyword">const
</span> point_t
& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> loc.y_at(d); }
174 <a name=
"l00203"></a>00203 <span class=
"keyword">inline
</span> iterator operator()(
<span class=
"keyword">const
</span> Loc
& loc,
<span class=
"keyword">const
</span> point_t
& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> loc.y_at(d); }
175 <a name=
"l00204"></a>00204 };
176 <a name=
"l00205"></a>00205 }
177 <a name=
"l00206"></a>00206
178 <a name=
"l00207"></a>00207 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Loc,
<span class=
"keyword">typename
</span> XIt,
<span class=
"keyword">typename
</span> YIt
>
179 <a name=
"l00208"></a>00208 <span class=
"keyword">struct
</span>channel_type
<pixel_2d_locator_base
<Loc,XIt,YIt
> > :
<span class=
"keyword">public
</span> channel_type
<XIt
> {};
180 <a name=
"l00209"></a>00209
181 <a name=
"l00210"></a>00210 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Loc,
<span class=
"keyword">typename
</span> XIt,
<span class=
"keyword">typename
</span> YIt
>
182 <a name=
"l00211"></a>00211 <span class=
"keyword">struct
</span>color_space_type
<pixel_2d_locator_base
<Loc,XIt,YIt
> > :
<span class=
"keyword">public
</span> color_space_type
<XIt
> {};
183 <a name=
"l00212"></a>00212
184 <a name=
"l00213"></a>00213 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Loc,
<span class=
"keyword">typename
</span> XIt,
<span class=
"keyword">typename
</span> YIt
>
185 <a name=
"l00214"></a>00214 <span class=
"keyword">struct
</span>channel_mapping_type
<pixel_2d_locator_base
<Loc,XIt,YIt
> > :
<span class=
"keyword">public
</span> channel_mapping_type
<XIt
> {};
186 <a name=
"l00215"></a>00215
187 <a name=
"l00216"></a>00216 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Loc,
<span class=
"keyword">typename
</span> XIt,
<span class=
"keyword">typename
</span> YIt
>
188 <a name=
"l00217"></a>00217 <span class=
"keyword">struct
</span>is_planar
<pixel_2d_locator_base
<Loc,XIt,YIt
> > :
<span class=
"keyword">public
</span> is_planar
<XIt
> {};
189 <a name=
"l00218"></a>00218
190 <a name=
"l00239"></a>00239
191 <a name=
"l00240"></a>00240 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> StepIterator
>
192 <a name=
"l00241"></a><a class=
"code" href=
"g_i_l_0044.html">00241</a> <span class=
"keyword">class
</span><a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a> :
<span class=
"keyword">public
</span> <a class=
"code" href=
"g_i_l_0058.html" title=
"base class for models of PixelLocatorConceptPixel locator is similar to a pixel iterator...">pixel_2d_locator_base
</a><memory_based_2d_locator
<StepIterator
>, typename iterator_adaptor_get_base
<StepIterator
>::type, StepIterator
> {
193 <a name=
"l00242"></a>00242 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
<StepIterator
></a> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">this_t
</a>;
194 <a name=
"l00243"></a>00243 GIL_CLASS_REQUIRE(StepIterator, boost::gil,
<a class=
"code" href=
"g_i_l_0380.html" title=
"Step iterator concept.">StepIteratorConcept
</a>)
195 <a name=
"l00244"></a>00244 <span class=
"keyword">public
</span>:
196 <a name=
"l00245"></a>00245 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0058.html" title=
"base class for models of PixelLocatorConceptPixel locator is similar to a pixel iterator...">pixel_2d_locator_base
<memory_based_2d_locator
<StepIterator
></a>,
<span class=
"keyword">typename
</span> iterator_adaptor_get_base
<StepIterator
>::type, StepIterator
> <a class=
"code" href=
"g_i_l_0058.html" title=
"base class for models of PixelLocatorConceptPixel locator is similar to a pixel iterator...">parent_t
</a>;
197 <a name=
"l00246"></a>00246 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
<typename const_iterator_type
<StepIterator
>::type
</a>> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">const_t
</a>;
<span class=
"comment">// same as this type, but over const values
</span>
198 <a name=
"l00247"></a>00247
199 <a name=
"l00248"></a>00248 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::coord_t coord_t;
200 <a name=
"l00249"></a>00249 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::x_coord_t x_coord_t;
201 <a name=
"l00250"></a>00250 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::y_coord_t y_coord_t;
202 <a name=
"l00251"></a>00251 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::x_iterator x_iterator;
203 <a name=
"l00252"></a>00252 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::y_iterator y_iterator;
204 <a name=
"l00253"></a>00253 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">parent_t::difference_type
</a> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>;
205 <a name=
"l00254"></a>00254 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> parent_t::reference reference;
206 <a name=
"l00255"></a>00255
207 <a name=
"l00256"></a>00256 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> Deref
> <span class=
"keyword">struct
</span>add_deref {
208 <a name=
"l00257"></a>00257 <span class=
"keyword">typedef
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
<typename iterator_add_deref
<StepIterator,Deref
>::type
</a>> type;
209 <a name=
"l00258"></a>00258 <span class=
"keyword">static
</span> type make(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
<StepIterator
></a>& loc,
<span class=
"keyword">const
</span> Deref
& nderef) {
210 <a name=
"l00259"></a>00259 <span class=
"keywordflow">return
</span> type(
<a class=
"code" href=
"g_i_l_0546.html" title=
"Returns the type (and creates an instance) of an iterator that invokes the given...">iterator_add_deref
<StepIterator,Deref
>::make
</a>(loc.
<a class=
"code" href=
"g_i_l_0044.html#8d8247ad88b73c9bb3b5d7122064ec59">y
</a>(),nderef));
211 <a name=
"l00260"></a>00260 }
212 <a name=
"l00261"></a>00261 };
213 <a name=
"l00262"></a>00262
214 <a name=
"l00263"></a>00263 <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a>() {}
215 <a name=
"l00264"></a>00264 <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a>(
<span class=
"keyword">const
</span> StepIterator
& yit) : _p(yit) {}
216 <a name=
"l00265"></a>00265 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SI
> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a>(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
<SI
></a>& loc, coord_t y_step) : _p(loc.
<a class=
"code" href=
"g_i_l_0044.html#1e86d37c383d7cbafbd4969321d07ae7">x
</a>(), loc.
<a class=
"code" href=
"g_i_l_0044.html#663951f31f647e1b19e58b7f3443c697">row_size
</a>()*y_step) {}
217 <a name=
"l00266"></a>00266 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SI
> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a>(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
<SI
></a>& loc, coord_t x_step, coord_t y_step,
<span class=
"keywordtype">bool
</span> transpose=
<span class=
"keyword">false
</span>)
218 <a name=
"l00267"></a>00267 : _p(make_step_iterator(loc.
<a class=
"code" href=
"g_i_l_0044.html#1e86d37c383d7cbafbd4969321d07ae7">x
</a>(),(transpose ? loc.
<a class=
"code" href=
"g_i_l_0044.html#663951f31f647e1b19e58b7f3443c697">row_size
</a>() : loc.
<a class=
"code" href=
"g_i_l_0044.html#a3d224e4e4ff07d5b09c0d340c822e85">pixel_size
</a>())*x_step),
219 <a name=
"l00268"></a>00268 (transpose ? loc.
<a class=
"code" href=
"g_i_l_0044.html#a3d224e4e4ff07d5b09c0d340c822e85">pixel_size
</a>() : loc.
<a class=
"code" href=
"g_i_l_0044.html#663951f31f647e1b19e58b7f3443c697">row_size
</a>())*y_step ) {}
220 <a name=
"l00269"></a>00269
221 <a name=
"l00270"></a>00270 <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a>(x_iterator xit, std::ptrdiff_t row_bytes) : _p(xit,row_bytes) {}
222 <a name=
"l00271"></a>00271 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> X
> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a>(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
<X
></a>& pl) : _p(pl.
<a class=
"code" href=
"g_i_l_0044.html#63bfd1c98810e1b6194344ef389b1852">_p
</a>) {}
223 <a name=
"l00272"></a>00272 <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a>(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a>& pl) : _p(pl.
<a class=
"code" href=
"g_i_l_0044.html#63bfd1c98810e1b6194344ef389b1852">_p
</a>) {}
224 <a name=
"l00273"></a>00273
225 <a name=
"l00274"></a>00274 <span class=
"keywordtype">bool
</span> operator==(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">this_t
</a>& p)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> _p==p.
<a class=
"code" href=
"g_i_l_0044.html#63bfd1c98810e1b6194344ef389b1852">_p
</a>; }
226 <a name=
"l00275"></a>00275
227 <a name=
"l00276"></a>00276 x_iterator
<span class=
"keyword">const
</span>& x()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> _p.base(); }
228 <a name=
"l00277"></a>00277 y_iterator
<span class=
"keyword">const
</span>& y()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> _p; }
229 <a name=
"l00278"></a>00278 x_iterator
& x() {
<span class=
"keywordflow">return
</span> _p.base(); }
230 <a name=
"l00279"></a>00279 y_iterator
& y() {
<span class=
"keywordflow">return
</span> _p; }
231 <a name=
"l00280"></a>00280
232 <a name=
"l00281"></a>00281 <span class=
"comment">// These are faster versions of functions already provided in the superclass
</span>
233 <a name=
"l00282"></a>00282 x_iterator x_at (x_coord_t dx, y_coord_t dy)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> memunit_advanced(x(), offset(dx,dy)); }
234 <a name=
"l00283"></a>00283 x_iterator x_at (
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> memunit_advanced(x(), offset(d.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>,d.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>)); }
235 <a name=
"l00284"></a>00284 <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">this_t
</a> xy_at (x_coord_t dx, y_coord_t dy)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">this_t
</a>(x_at( dx , dy ), row_size()); }
236 <a name=
"l00285"></a>00285 <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">this_t
</a> xy_at (
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">this_t
</a>(x_at( d.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>, d.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>), row_size()); }
237 <a name=
"l00286"></a>00286 reference operator()(x_coord_t dx, y_coord_t dy)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> memunit_advanced_ref(x(),offset(dx,dy)); }
238 <a name=
"l00287"></a>00287 reference operator[](
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> memunit_advanced_ref(x(),offset(d.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>,d.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>)); }
239 <a name=
"l00288"></a>00288 <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">this_t
</a>& operator+=(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d) { memunit_advance(x(),offset(d.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>,d.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>));
<span class=
"keywordflow">return
</span> *
<span class=
"keyword">this
</span>; }
240 <a name=
"l00289"></a>00289 <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">this_t
</a>& operator-=(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d) { memunit_advance(x(),offset(-d.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>,-d.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>));
<span class=
"keywordflow">return
</span> *
<span class=
"keyword">this
</span>; }
241 <a name=
"l00290"></a>00290
242 <a name=
"l00291"></a>00291 <span class=
"comment">// Memory-based locators can have
1D caching of
2D relative coordinates
</span>
243 <a name=
"l00292"></a>00292 <span class=
"keyword">typedef
</span> std::ptrdiff_t
<a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">cached_location_t
</a>;
<span class=
"comment">// type used to store relative location (to allow for more efficient repeated access)
</span>
244 <a name=
"l00293"></a>00293 <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">cached_location_t
</a> cache_location(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">difference_type
</a>& d)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> offset(d.
<a class=
"code" href=
"g_i_l_0060.html#9a4f74af87a76a4c3dcb729cb0e68f8d">x
</a>,d.
<a class=
"code" href=
"g_i_l_0060.html#1cb2b5ea04251d543e49356ef54eb853">y
</a>); }
245 <a name=
"l00294"></a>00294 <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">cached_location_t
</a> cache_location(x_coord_t dx, y_coord_t dy)
<span class=
"keyword">const
</span>{
<span class=
"keywordflow">return
</span> offset(dx,dy); }
246 <a name=
"l00295"></a>00295 reference operator[](
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0060.html" title=
"2D point both axes of which have the same dimension typeModels: Point2DConcept">cached_location_t
</a>& loc)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> memunit_advanced_ref(x(),loc); }
247 <a name=
"l00296"></a>00296
248 <a name=
"l00297"></a>00297 <span class=
"comment">// Only make sense for memory-based locators
</span>
249 <a name=
"l00298"></a>00298 std::ptrdiff_t row_size()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> memunit_step(y()); }
<span class=
"comment">// distance in mem units (bytes or bits) between adjacent rows
</span>
250 <a name=
"l00299"></a>00299 std::ptrdiff_t pixel_size()
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> memunit_step(x()); }
<span class=
"comment">// distance in mem units (bytes or bits) between adjacent pixels on the same row
</span>
251 <a name=
"l00300"></a>00300
252 <a name=
"l00301"></a>00301 <span class=
"keywordtype">bool
</span> is_1d_traversable(x_coord_t width)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> row_size()-pixel_size()*width==
0; }
<span class=
"comment">// is there no gap at the end of each row?
</span>
253 <a name=
"l00302"></a>00302
254 <a name=
"l00303"></a>00303 <span class=
"comment">// Returns the vertical distance (it2.y-it1.y) between two x_iterators given the difference of their x positions
</span>
255 <a name=
"l00304"></a>00304 std::ptrdiff_t y_distance_to(
<span class=
"keyword">const
</span> <a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">this_t
</a>& p2, x_coord_t xDiff)
<span class=
"keyword"> const
</span>{
256 <a name=
"l00305"></a>00305 std::ptrdiff_t rowDiff=memunit_distance(x(),p2.
<a class=
"code" href=
"g_i_l_0044.html#1e86d37c383d7cbafbd4969321d07ae7">x
</a>())-pixel_size()*xDiff;
257 <a name=
"l00306"></a>00306 assert(( rowDiff % row_size())==
0);
258 <a name=
"l00307"></a>00307 <span class=
"keywordflow">return
</span> rowDiff / row_size();
259 <a name=
"l00308"></a>00308 }
260 <a name=
"l00309"></a>00309
261 <a name=
"l00310"></a>00310 <span class=
"keyword">private
</span>:
262 <a name=
"l00311"></a>00311 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> X
> <span class=
"keyword">friend
</span> <span class=
"keyword">class
</span><a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a>;
263 <a name=
"l00312"></a>00312 std::ptrdiff_t offset(x_coord_t x, y_coord_t y)
<span class=
"keyword"> const
</span>{
<span class=
"keywordflow">return
</span> y*row_size() + x*pixel_size(); }
264 <a name=
"l00313"></a>00313 StepIterator _p;
265 <a name=
"l00314"></a>00314 };
266 <a name=
"l00315"></a>00315
267 <a name=
"l00317"></a>00317 <span class=
"comment">// PixelBasedConcept
</span>
268 <a name=
"l00319"></a>00319 <span class=
"comment"></span>
269 <a name=
"l00320"></a>00320 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SI
>
270 <a name=
"l00321"></a>00321 <span class=
"keyword">struct
</span>color_space_type
<<a class=
"code" href=
"g_i_l_0044.html" title=
"Memory-based pixel locator. Models: PixelLocatorConcept,HasDynamicXStepTypeConcept...">memory_based_2d_locator
</a><SI
> > :
<span class=
"keyword">public
</span> color_space_type
<typename memory_based_2d_locator
<SI
>::parent_t
> {
271 <a name=
"l00322"></a>00322 };
272 <a name=
"l00323"></a>00323
273 <a name=
"l00324"></a>00324 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SI
>
274 <a name=
"l00325"></a>00325 <span class=
"keyword">struct
</span>channel_mapping_type
<memory_based_2d_locator
<SI
> > :
<span class=
"keyword">public
</span> channel_mapping_type
<typename memory_based_2d_locator
<SI
>::parent_t
> {
275 <a name=
"l00326"></a>00326 };
276 <a name=
"l00327"></a>00327
277 <a name=
"l00328"></a>00328 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SI
>
278 <a name=
"l00329"></a>00329 <span class=
"keyword">struct
</span>is_planar
<memory_based_2d_locator
<SI
> > :
<span class=
"keyword">public
</span> is_planar
<typename memory_based_2d_locator
<SI
>::parent_t
> {
279 <a name=
"l00330"></a>00330 };
280 <a name=
"l00331"></a>00331
281 <a name=
"l00332"></a>00332 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SI
>
282 <a name=
"l00333"></a>00333 <span class=
"keyword">struct
</span>channel_type
<memory_based_2d_locator
<SI
> > :
<span class=
"keyword">public
</span> channel_type
<typename memory_based_2d_locator
<SI
>::parent_t
> {
283 <a name=
"l00334"></a>00334 };
284 <a name=
"l00335"></a>00335
285 <a name=
"l00337"></a>00337 <span class=
"comment">// HasDynamicXStepTypeConcept
</span>
286 <a name=
"l00339"></a>00339 <span class=
"comment"></span>
287 <a name=
"l00340"></a>00340 <span class=
"comment">// Take the base iterator of SI (which is typically a step iterator) and change it to have a step in x
</span>
288 <a name=
"l00341"></a>00341 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SI
>
289 <a name=
"l00342"></a>00342 <span class=
"keyword">struct
</span>dynamic_x_step_type
<memory_based_2d_locator
<SI
> > {
290 <a name=
"l00343"></a>00343 <span class=
"keyword">private
</span>:
291 <a name=
"l00344"></a>00344 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> iterator_adaptor_get_base
<SI
>::type base_iterator_t;
292 <a name=
"l00345"></a>00345 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> dynamic_x_step_type
<base_iterator_t
>::type base_iterator_step_t;
293 <a name=
"l00346"></a>00346 <span class=
"keyword">typedef
</span> <span class=
"keyword">typename
</span> iterator_adaptor_rebind
<SI, base_iterator_step_t
>::type dynamic_step_base_t;
294 <a name=
"l00347"></a>00347 <span class=
"keyword">public
</span>:
295 <a name=
"l00348"></a>00348 <span class=
"keyword">typedef
</span> memory_based_2d_locator
<dynamic_step_base_t
> type;
296 <a name=
"l00349"></a>00349 };
297 <a name=
"l00350"></a>00350
298 <a name=
"l00352"></a>00352 <span class=
"comment">// HasDynamicYStepTypeConcept
</span>
299 <a name=
"l00354"></a>00354 <span class=
"comment"></span>
300 <a name=
"l00355"></a>00355 <span class=
"keyword">template
</span> <<span class=
"keyword">typename
</span> SI
>
301 <a name=
"l00356"></a>00356 <span class=
"keyword">struct
</span>dynamic_y_step_type
<memory_based_2d_locator
<SI
> > {
302 <a name=
"l00357"></a>00357 <span class=
"keyword">typedef
</span> memory_based_2d_locator
<SI
> type;
303 <a name=
"l00358"></a>00358 };
304 <a name=
"l00359"></a>00359
305 <a name=
"l00360"></a>00360 } }
<span class=
"comment">// namespace boost::gil
</span>
306 <a name=
"l00361"></a>00361
307 <a name=
"l00362"></a>00362 <span class=
"preprocessor">#endif
</span>
309 <hr size=
"1"><address style=
"text-align: right;"><small>Generated on Sat May
2 13:
50:
14 2009 for Generic Image Library by
310 <a href=
"http://www.doxygen.org/index.html">
311 <img src=
"doxygen.png" alt=
"doxygen" align=
"middle" border=
"0"></a> 1.5.6 </small></address>