libs/gil/doc/html/reference/classboost_1_1gil_1_1virtual__2d__locator.html

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   9     <title>Generic Image Library: virtual_2d_locator&lt; DerefFn, IsTransposed &gt; Class Template Reference</title>
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  41   <ul>
  42 <li class="navelem"><b>boost</b></li><li class="navelem"><b>gil</b></li><li class="navelem"><a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a></li>  </ul>
  43 </div>
  44 </div><!-- top -->
  45 <div class="header">
  46   <div class="summary">
  47 <a href="#pub-types">Public Types</a> &#124;
  48 <a href="#pub-methods">Public Member Functions</a> &#124;
  49 <a href="#friends">Friends</a> &#124;
  50 <a href="classboost_1_1gil_1_1virtual__2d__locator-members.html">List of all members</a>  </div>
  51   <div class="headertitle">
  52 <div class="title">virtual_2d_locator&lt; DerefFn, IsTransposed &gt; Class Template Reference<div class="ingroups"><a class="el" href="group___pixel_locator.html">Pixel Locator</a> &raquo; <a class="el" href="group___pixel_locator_model.html">Models</a><a class="el" href="group___pixel_based.html">PixelBased</a> &raquo;  &#124; <a class="el" href="group___pixel_based_model.html">Models</a></div></div>  </div>
  53 </div><!--header-->
  54 <div class="contents">
  55
  56 <p>A 2D locator over a virtual image Upon dereferencing, invokes a given function object passing it its coordinates. Models: <a class="el" href="structboost_1_1gil_1_1_pixel_locator_concept.html" title="GIL&#39;s 2-dimensional locator over immutable GIL pixels.">PixelLocatorConcept</a>, <a class="el" href="structboost_1_1gil_1_1_has_dynamic_x_step_type_concept.html" title="Concept for iterators, locators and views that can define a type just like the given iterator,...">HasDynamicXStepTypeConcept</a>, <a class="el" href="structboost_1_1gil_1_1_has_dynamic_y_step_type_concept.html" title="Concept for locators and views that can define a type just like the given locator or view,...">HasDynamicYStepTypeConcept</a>, <a class="el" href="structboost_1_1gil_1_1_has_transposed_type_concept.html" title="Concept for locators and views that can define a type just like the given locator or view,...">HasTransposedTypeConcept</a>.
  57  <a href="classboost_1_1gil_1_1virtual__2d__locator.html#details">More...</a></p>
  58
  59 <p><code>#include &lt;<a class="el" href="virtual__locator_8hpp_source.html">virtual_locator.hpp</a>&gt;</code></p>
  60 <div class="dynheader">
  61 Inheritance diagram for virtual_2d_locator&lt; DerefFn, IsTransposed &gt;:</div>
  62 <div class="dyncontent">
  63  <div class="center">
  64   <img src="classboost_1_1gil_1_1virtual__2d__locator.png" usemap="#virtual_5F2d_5Flocator_3C_20DerefFn_2C_20IsTransposed_20_3E_map" alt=""/>
  65   <map id="virtual_5F2d_5Flocator_3C_20DerefFn_2C_20IsTransposed_20_3E_map" name="virtual_5F2d_5Flocator_3C_20DerefFn_2C_20IsTransposed_20_3E_map">
  66 <area href="classboost_1_1gil_1_1pixel__2d__locator__base.html" alt="pixel_2d_locator_base&lt; virtual_2d_locator&lt; DerefFn, IsTransposed &gt;, position_iterator&lt; DerefFn, IsTransposed &gt;, position_iterator&lt; DerefFn, 1-IsTransposed &gt; &gt;" shape="rect" coords="0,0,942,24"/>
  67   </map>
  68 </div></div>
  69 <table class="memberdecls">
  70 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
  71 Public Types</h2></td></tr>
  72 <tr class="memitem:a454c06dc552be3e557f91d058405f783"><td class="memItemLeft" align="right" valign="top"><a id="a454c06dc552be3e557f91d058405f783"></a>
  73 using&#160;</td><td class="memItemRight" valign="bottom"><b>parent_t</b> = <a class="el" href="classboost_1_1gil_1_1pixel__2d__locator__base.html">pixel_2d_locator_base</a>&lt; <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; DerefFn, IsTransposed &gt;, <a class="el" href="structboost_1_1gil_1_1position__iterator.html">position_iterator</a>&lt; DerefFn, IsTransposed &gt;, <a class="el" href="structboost_1_1gil_1_1position__iterator.html">position_iterator</a>&lt; DerefFn, 1-IsTransposed &gt; &gt;</td></tr>
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  76 using&#160;</td><td class="memItemRight" valign="bottom"><b>const_t</b> = <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; typename DerefFn::const_t, IsTransposed &gt;</td></tr>
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  79 using&#160;</td><td class="memItemRight" valign="bottom"><b>deref_fn_t</b> = DerefFn</td></tr>
  80 <tr class="separator:ac187a463c4a263240baf22fd0869b800"><td class="memSeparator" colspan="2">&#160;</td></tr>
  81 <tr class="memitem:a74a580d80bd0bc7006be48ab32d8ab73"><td class="memItemLeft" align="right" valign="top"><a id="a74a580d80bd0bc7006be48ab32d8ab73"></a>
  82 using&#160;</td><td class="memItemRight" valign="bottom"><b>point_t</b> = typename <a class="el" href="classboost_1_1gil_1_1point.html">parent_t::point_t</a></td></tr>
  83 <tr class="separator:a74a580d80bd0bc7006be48ab32d8ab73"><td class="memSeparator" colspan="2">&#160;</td></tr>
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  85 using&#160;</td><td class="memItemRight" valign="bottom"><b>coord_t</b> = typename parent_t::coord_t</td></tr>
  86 <tr class="separator:af4751cc075ce9cd5f95f4179630f4db7"><td class="memSeparator" colspan="2">&#160;</td></tr>
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  88 using&#160;</td><td class="memItemRight" valign="bottom"><b>x_coord_t</b> = typename parent_t::x_coord_t</td></tr>
  89 <tr class="separator:a76daae71db955ccfc833b1894dfcda78"><td class="memSeparator" colspan="2">&#160;</td></tr>
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  91 using&#160;</td><td class="memItemRight" valign="bottom"><b>y_coord_t</b> = typename parent_t::y_coord_t</td></tr>
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  94 using&#160;</td><td class="memItemRight" valign="bottom"><b>x_iterator</b> = typename <a class="el" href="structboost_1_1gil_1_1position__iterator.html">parent_t::x_iterator</a></td></tr>
  95 <tr class="separator:a8a09cfecd72dadcb60a066bcb70be67b"><td class="memSeparator" colspan="2">&#160;</td></tr>
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  97 using&#160;</td><td class="memItemRight" valign="bottom"><b>y_iterator</b> = typename <a class="el" href="structboost_1_1gil_1_1position__iterator.html">parent_t::y_iterator</a></td></tr>
  98 <tr class="separator:aa25c6cebb91b563d0bb729323a8e43a9"><td class="memSeparator" colspan="2">&#160;</td></tr>
  99 <tr class="inherit_header pub_types_classboost_1_1gil_1_1pixel__2d__locator__base"><td colspan="2" onclick="javascript:toggleInherit('pub_types_classboost_1_1gil_1_1pixel__2d__locator__base')"><img src="closed.png" alt="-"/>&#160;Public Types inherited from <a class="el" href="classboost_1_1gil_1_1pixel__2d__locator__base.html">pixel_2d_locator_base&lt; virtual_2d_locator&lt; DerefFn, IsTransposed &gt;, position_iterator&lt; DerefFn, IsTransposed &gt;, position_iterator&lt; DerefFn, 1-IsTransposed &gt; &gt;</a></td></tr>
 100 <tr class="memitem:ac8dff97b16cfc859526cbe71bb5e0456 inherit pub_types_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memItemLeft" align="right" valign="top"><a id="ac8dff97b16cfc859526cbe71bb5e0456"></a>
 101 using&#160;</td><td class="memItemRight" valign="bottom"><b>x_iterator</b> = <a class="el" href="structboost_1_1gil_1_1position__iterator.html">position_iterator</a>&lt; DerefFn, IsTransposed &gt;</td></tr>
 102 <tr class="separator:ac8dff97b16cfc859526cbe71bb5e0456 inherit pub_types_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memSeparator" colspan="2">&#160;</td></tr>
 103 <tr class="memitem:ac7db843d09573b19a4ec6c70cb699df2 inherit pub_types_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memItemLeft" align="right" valign="top"><a id="ac7db843d09573b19a4ec6c70cb699df2"></a>
 104 using&#160;</td><td class="memItemRight" valign="bottom"><b>y_iterator</b> = <a class="el" href="structboost_1_1gil_1_1position__iterator.html">position_iterator</a>&lt; DerefFn, 1-IsTransposed &gt;</td></tr>
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 107 using&#160;</td><td class="memItemRight" valign="bottom"><b>value_type</b> = typename std::iterator_traits&lt; <a class="el" href="structboost_1_1gil_1_1position__iterator.html">x_iterator</a> &gt;::value_type</td></tr>
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 110 using&#160;</td><td class="memItemRight" valign="bottom"><b>reference</b> = typename std::iterator_traits&lt; <a class="el" href="structboost_1_1gil_1_1position__iterator.html">x_iterator</a> &gt;::reference</td></tr>
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 113 using&#160;</td><td class="memItemRight" valign="bottom"><b>coord_t</b> = typename std::iterator_traits&lt; <a class="el" href="structboost_1_1gil_1_1position__iterator.html">x_iterator</a> &gt;::<a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a></td></tr>
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 116 using&#160;</td><td class="memItemRight" valign="bottom"><b>difference_type</b> = <a class="el" href="classboost_1_1gil_1_1point.html">point</a>&lt; coord_t &gt;</td></tr>
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 119 using&#160;</td><td class="memItemRight" valign="bottom"><b>point_t</b> = <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a></td></tr>
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 122 using&#160;</td><td class="memItemRight" valign="bottom"><b>x_coord_t</b> = typename point_t::template axis&lt; 0 &gt;::coord_t</td></tr>
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 125 using&#160;</td><td class="memItemRight" valign="bottom"><b>y_coord_t</b> = typename point_t::template axis&lt; 1 &gt;::coord_t</td></tr>
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 127 <tr class="memitem:a7192e60183dc5bbaaa9c9344e2b00ccc inherit pub_types_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memItemLeft" align="right" valign="top"><a id="a7192e60183dc5bbaaa9c9344e2b00ccc"></a>
 128 using&#160;</td><td class="memItemRight" valign="bottom"><b>cached_location_t</b> = <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a></td></tr>
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 130 </table><table class="memberdecls">
 131 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
 132 Public Member Functions</h2></td></tr>
 133 <tr class="memitem:a41d58c2aab45c0a4b7a4c1aa850d96b5"><td class="memItemLeft" align="right" valign="top"><a id="a41d58c2aab45c0a4b7a4c1aa850d96b5"></a>
 134 &#160;</td><td class="memItemRight" valign="bottom"><b>virtual_2d_locator</b> (point_t const &amp;p={0, 0}, point_t const &amp;step={1, 1}, deref_fn_t const &amp;deref_fn=deref_fn_t())</td></tr>
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 137 template&lt;typename D , bool TR&gt; </td></tr>
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 141 template&lt;typename D , bool TR&gt; </td></tr>
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 145 template&lt;typename D , bool TR&gt; </td></tr>
 146 <tr class="memitem:a2124491c98865aa2d537f2005d63cdaa"><td class="memTemplItemLeft" align="right" valign="top">&#160;</td><td class="memTemplItemRight" valign="bottom"><b>virtual_2d_locator</b> (<a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; D, TR &gt; const &amp;other)</td></tr>
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 149 &#160;</td><td class="memItemRight" valign="bottom"><b>virtual_2d_locator</b> (<a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a> const &amp;other)</td></tr>
 150 <tr class="separator:acc9f1c2fb3af004c897a8da79659dee1"><td class="memSeparator" colspan="2">&#160;</td></tr>
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 152 <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>operator=</b> (<a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a> const &amp;other)=default</td></tr>
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 155 bool&#160;</td><td class="memItemRight" valign="bottom"><b>operator==</b> (const <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">this_t</a> &amp;p) const</td></tr>
 156 <tr class="separator:a41b0fb9b0107b46f7afc96170835f2a2"><td class="memSeparator" colspan="2">&#160;</td></tr>
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 158 auto&#160;</td><td class="memItemRight" valign="bottom"><b>x</b> () -&gt; x_iterator &amp;</td></tr>
 159 <tr class="separator:a1a0820020a7c6eb9802bab32ad2fa9d5"><td class="memSeparator" colspan="2">&#160;</td></tr>
 160 <tr class="memitem:ac8da03d928b41e49d98c6a57ee75a775"><td class="memItemLeft" align="right" valign="top"><a id="ac8da03d928b41e49d98c6a57ee75a775"></a>
 161 auto&#160;</td><td class="memItemRight" valign="bottom"><b>x</b> () const -&gt; x_iterator const &amp;</td></tr>
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 164 auto&#160;</td><td class="memItemRight" valign="bottom"><b>y</b> () -&gt; y_iterator &amp;</td></tr>
 165 <tr class="separator:a9463d5ed77d7feb75f07057941beafb4"><td class="memSeparator" colspan="2">&#160;</td></tr>
 166 <tr class="memitem:a4674eaba80d52f0cf74ee0de61a496d1"><td class="memItemLeft" align="right" valign="top"><a id="a4674eaba80d52f0cf74ee0de61a496d1"></a>
 167 auto&#160;</td><td class="memItemRight" valign="bottom"><b>y</b> () const -&gt; y_iterator const &amp;</td></tr>
 168 <tr class="separator:a4674eaba80d52f0cf74ee0de61a496d1"><td class="memSeparator" colspan="2">&#160;</td></tr>
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 170 auto&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html#a250806294188ba94e50e45a3c67aa0ab">y_distance_to</a> (<a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">this_t</a> const &amp;it2, x_coord_t) const -&gt; y_coord_t</td></tr>
 171 <tr class="memdesc:a250806294188ba94e50e45a3c67aa0ab"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the y distance between two x_iterators given the difference of their x positions. <br /></td></tr>
 172 <tr class="separator:a250806294188ba94e50e45a3c67aa0ab"><td class="memSeparator" colspan="2">&#160;</td></tr>
 173 <tr class="memitem:a5b6f376ae8856b9fdd19bd68b80a1cb0"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html#a5b6f376ae8856b9fdd19bd68b80a1cb0">is_1d_traversable</a> (x_coord_t) const</td></tr>
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 176 auto&#160;</td><td class="memItemRight" valign="bottom"><b>pos</b> () const -&gt; point_t const &amp;</td></tr>
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 179 auto&#160;</td><td class="memItemRight" valign="bottom"><b>step</b> () const -&gt; point_t const &amp;</td></tr>
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 182 auto&#160;</td><td class="memItemRight" valign="bottom"><b>deref_fn</b> () const -&gt; deref_fn_t const &amp;</td></tr>
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 184 <tr class="inherit_header pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classboost_1_1gil_1_1pixel__2d__locator__base.html">pixel_2d_locator_base&lt; virtual_2d_locator&lt; DerefFn, IsTransposed &gt;, position_iterator&lt; DerefFn, IsTransposed &gt;, position_iterator&lt; DerefFn, 1-IsTransposed &gt; &gt;</a></td></tr>
 185 <tr class="memitem:a2fc5cf8788f95bf50cdab2e272fc7708 inherit pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memItemLeft" align="right" valign="top"><a id="a2fc5cf8788f95bf50cdab2e272fc7708"></a>
 186 bool&#160;</td><td class="memItemRight" valign="bottom"><b>operator!=</b> (const <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; DerefFn, IsTransposed &gt; &amp;p) const</td></tr>
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 189 <a class="el" href="structboost_1_1gil_1_1position__iterator.html">x_iterator</a>&#160;</td><td class="memItemRight" valign="bottom"><b>x_at</b> (x_coord_t dx, y_coord_t dy) const</td></tr>
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 192 <a class="el" href="structboost_1_1gil_1_1position__iterator.html">x_iterator</a>&#160;</td><td class="memItemRight" valign="bottom"><b>x_at</b> (const <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a> &amp;d) const</td></tr>
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 195 <a class="el" href="structboost_1_1gil_1_1position__iterator.html">y_iterator</a>&#160;</td><td class="memItemRight" valign="bottom"><b>y_at</b> (x_coord_t dx, y_coord_t dy) const</td></tr>
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 198 <a class="el" href="structboost_1_1gil_1_1position__iterator.html">y_iterator</a>&#160;</td><td class="memItemRight" valign="bottom"><b>y_at</b> (const <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a> &amp;d) const</td></tr>
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 200 <tr class="memitem:a26fb7b21c165511095079ac298816209 inherit pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memItemLeft" align="right" valign="top"><a id="a26fb7b21c165511095079ac298816209"></a>
 201 <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; DerefFn, IsTransposed &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>xy_at</b> (x_coord_t dx, y_coord_t dy) const</td></tr>
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 204 <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; DerefFn, IsTransposed &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>xy_at</b> (const <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a> &amp;d) const</td></tr>
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 207 axis&lt; D &gt;::iterator &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>axis_iterator</b> ()</td></tr>
 208 <tr class="separator:a99149c579785498e03160ecb1a41609d inherit pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memSeparator" colspan="2">&#160;</td></tr>
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 210 axis&lt; D &gt;::iterator const &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>axis_iterator</b> () const</td></tr>
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 213 axis&lt; D &gt;::iterator&#160;</td><td class="memItemRight" valign="bottom"><b>axis_iterator</b> (const <a class="el" href="classboost_1_1gil_1_1point.html">point_t</a> &amp;p) const</td></tr>
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 216 reference&#160;</td><td class="memItemRight" valign="bottom"><b>operator()</b> (x_coord_t dx, y_coord_t dy) const</td></tr>
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 222 reference&#160;</td><td class="memItemRight" valign="bottom"><b>operator *</b> () const</td></tr>
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 225 <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; DerefFn, IsTransposed &gt; &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>operator+=</b> (const <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a> &amp;d)</td></tr>
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 227 <tr class="memitem:ae4adb8167f7979861b075323379317de inherit pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memItemLeft" align="right" valign="top"><a id="ae4adb8167f7979861b075323379317de"></a>
 228 <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; DerefFn, IsTransposed &gt; &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>operator-=</b> (const <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a> &amp;d)</td></tr>
 229 <tr class="separator:ae4adb8167f7979861b075323379317de inherit pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memSeparator" colspan="2">&#160;</td></tr>
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 231 <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; DerefFn, IsTransposed &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>operator+</b> (const <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a> &amp;d) const</td></tr>
 232 <tr class="separator:a889204668e3638b29078a7c51563f8e3 inherit pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memSeparator" colspan="2">&#160;</td></tr>
 233 <tr class="memitem:ad00224b883bb26060c9b155e1b6b582d inherit pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memItemLeft" align="right" valign="top"><a id="ad00224b883bb26060c9b155e1b6b582d"></a>
 234 <a class="el" href="classboost_1_1gil_1_1virtual__2d__locator.html">virtual_2d_locator</a>&lt; DerefFn, IsTransposed &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>operator-</b> (const <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a> &amp;d) const</td></tr>
 235 <tr class="separator:ad00224b883bb26060c9b155e1b6b582d inherit pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memSeparator" colspan="2">&#160;</td></tr>
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 237 <a class="el" href="classboost_1_1gil_1_1point.html">cached_location_t</a>&#160;</td><td class="memItemRight" valign="bottom"><b>cache_location</b> (const <a class="el" href="classboost_1_1gil_1_1point.html">difference_type</a> &amp;d) const</td></tr>
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 240 <a class="el" href="classboost_1_1gil_1_1point.html">cached_location_t</a>&#160;</td><td class="memItemRight" valign="bottom"><b>cache_location</b> (x_coord_t dx, y_coord_t dy) const</td></tr>
 241 <tr class="separator:a2e1034acfdb761f1457673463f2b8610 inherit pub_methods_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memSeparator" colspan="2">&#160;</td></tr>
 242 </table><table class="memberdecls">
 243 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a>
 244 Friends</h2></td></tr>
 245 <tr class="memitem:ab2ad2002e9a9b8df1463a0cf14c29e65"><td class="memTemplParams" colspan="2"><a id="ab2ad2002e9a9b8df1463a0cf14c29e65"></a>
 246 template&lt;typename D , bool TR&gt; </td></tr>
 247 <tr class="memitem:ab2ad2002e9a9b8df1463a0cf14c29e65"><td class="memTemplItemLeft" align="right" valign="top">class&#160;</td><td class="memTemplItemRight" valign="bottom"><b>virtual_2d_locator</b></td></tr>
 248 <tr class="separator:ab2ad2002e9a9b8df1463a0cf14c29e65"><td class="memSeparator" colspan="2">&#160;</td></tr>
 249 </table><table class="memberdecls">
 250 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
 251 Additional Inherited Members</h2></td></tr>
 252 <tr class="inherit_header pub_static_attribs_classboost_1_1gil_1_1pixel__2d__locator__base"><td colspan="2" onclick="javascript:toggleInherit('pub_static_attribs_classboost_1_1gil_1_1pixel__2d__locator__base')"><img src="closed.png" alt="-"/>&#160;Static Public Attributes inherited from <a class="el" href="classboost_1_1gil_1_1pixel__2d__locator__base.html">pixel_2d_locator_base&lt; virtual_2d_locator&lt; DerefFn, IsTransposed &gt;, position_iterator&lt; DerefFn, IsTransposed &gt;, position_iterator&lt; DerefFn, 1-IsTransposed &gt; &gt;</a></td></tr>
 253 <tr class="memitem:acf81c27b3fffa67d66b47f46979b607e inherit pub_static_attribs_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memItemLeft" align="right" valign="top"><a id="acf81c27b3fffa67d66b47f46979b607e"></a>
 254 static const std::size_t&#160;</td><td class="memItemRight" valign="bottom"><b>num_dimensions</b></td></tr>
 255 <tr class="separator:acf81c27b3fffa67d66b47f46979b607e inherit pub_static_attribs_classboost_1_1gil_1_1pixel__2d__locator__base"><td class="memSeparator" colspan="2">&#160;</td></tr>
 256 </table>
 257 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
 258 <div class="textblock"><h3>template&lt;typename DerefFn, bool IsTransposed&gt;<br />
 259 class boost::gil::virtual_2d_locator&lt; DerefFn, IsTransposed &gt;</h3>
 260
 261 <p>A 2D locator over a virtual image Upon dereferencing, invokes a given function object passing it its coordinates. Models: <a class="el" href="structboost_1_1gil_1_1_pixel_locator_concept.html" title="GIL&#39;s 2-dimensional locator over immutable GIL pixels.">PixelLocatorConcept</a>, <a class="el" href="structboost_1_1gil_1_1_has_dynamic_x_step_type_concept.html" title="Concept for iterators, locators and views that can define a type just like the given iterator,...">HasDynamicXStepTypeConcept</a>, <a class="el" href="structboost_1_1gil_1_1_has_dynamic_y_step_type_concept.html" title="Concept for locators and views that can define a type just like the given locator or view,...">HasDynamicYStepTypeConcept</a>, <a class="el" href="structboost_1_1gil_1_1_has_transposed_type_concept.html" title="Concept for locators and views that can define a type just like the given locator or view,...">HasTransposedTypeConcept</a>. </p>
 262 <dl class="tparams"><dt>Template Parameters</dt><dd>
 263   <table class="tparams">
 264     <tr><td class="paramname">DerefFn</td><td>Function object that given a point returns a reference. Models <a class="el" href="structboost_1_1gil_1_1_pixel_dereference_adaptor_concept.html" title="Represents a unary function object that can be invoked upon dereferencing a pixel iterator.">PixelDereferenceAdaptorConcept</a>. </td></tr>
 265     <tr><td class="paramname">IsTransposed</td><td>Indicates if locator should navigate in transposed mode. </td></tr>
 266   </table>
 267   </dd>
 268 </dl>
 269 </div><h2 class="groupheader">Member Function Documentation</h2>
 270 <a id="a5b6f376ae8856b9fdd19bd68b80a1cb0"></a>
 271 <h2 class="memtitle"><span class="permalink"><a href="#a5b6f376ae8856b9fdd19bd68b80a1cb0">&#9670;&nbsp;</a></span>is_1d_traversable()</h2>
 272
 273 <div class="memitem">
 274 <div class="memproto">
 275 <table class="mlabels">
 276   <tr>
 277   <td class="mlabels-left">
 278       <table class="memname">
 279         <tr>
 280           <td class="memname">bool is_1d_traversable </td>
 281           <td>(</td>
 282           <td class="paramtype">x_coord_t&#160;</td>
 283           <td class="paramname"></td><td>)</td>
 284           <td> const</td>
 285         </tr>
 286       </table>
 287   </td>
 288   <td class="mlabels-right">
 289 <span class="mlabels"><span class="mlabel">inline</span></span>  </td>
 290   </tr>
 291 </table>
 292 </div><div class="memdoc">
 293 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000003">Todo:</a></b></dt><dd>TODO: is there no gap at the end of each row? i.e. can we use x_iterator to visit every pixel instead of nested loops? </dd></dl>
 294
 295 </div>
 296 </div>
 297 <hr/>The documentation for this class was generated from the following file:<ul>
 298 <li><a class="el" href="virtual__locator_8hpp_source.html">virtual_locator.hpp</a></li>
 299 </ul>
 300 </div><!-- contents -->
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