 drawing operation to a given (rectangular) region of an image.</dd></dl>
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<h1><a class="anchor" id="autotoc_md7"></a>
Vectors and Boxes</h1>
<p >The tgx library defines classes for 2D vectors and boxes:</p>
<ul>
<li><a class="el" href="_vec2_8h.html#a37eab41759a1a4093ac2fbde648b4c0f">tgx::iVec2</a> : integer-valued 2D vector. <b>Use for pixel location in images</b></li>
<li><a class="el" href="_vec2_8h.html#a21109f9665da891178228a1fb80b90b6">tgx::fVec2</a> : floating point-valued 2D vector. <b>Used 