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 <span id="projectnumber">3.03</span>
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<div class="title">/usr/local/google/home/jbreiden/tesseract-ocr-read-only/textord/equationdetectbase.cpp</div> </div>
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<a href="a01116.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
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<a name="l00002"></a>00002 <span class="comment">// File: equationdetectbase.cpp</span>
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<a name="l00003"></a>00003 <span class="comment">// Description: The base class equation detection class.</span>
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<a name="l00004"></a>00004 <span class="comment">// Author: Zongyi (Joe) Liu (joeliu@google.com)</span>
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<a name="l00005"></a>00005 <span class="comment">// Created: Fri Aug 31 11:13:01 PST 2011</span>
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<a name="l00006"></a>00006 <span class="comment">//</span>
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<a name="l00007"></a>00007 <span class="comment">// (C) Copyright 2011, Google Inc.</span>
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<a name="l00008"></a>00008 <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span>
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<a name="l00009"></a>00009 <span class="comment">// you may not use this file except in compliance with the License.</span>
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<a name="l00010"></a>00010 <span class="comment">// You may obtain a copy of the License at</span>
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<a name="l00011"></a>00011 <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span>
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<a name="l00012"></a>00012 <span class="comment">// Unless required by applicable law or agreed to in writing, software</span>
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<a name="l00013"></a>00013 <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span>
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<a name="l00014"></a>00014 <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
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<a name="l00015"></a>00015 <span class="comment">// See the License for the specific language governing permissions and</span>
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<a name="l00016"></a>00016 <span class="comment">// limitations under the License.</span>
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<a name="l00017"></a>00017 <span class="comment">//</span>
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<a name="l00019"></a>00019 <span class="comment"></span>
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<a name="l00020"></a>00020 <span class="preprocessor">#include "allheaders.h"</span>
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<a name="l00021"></a>00021 <span class="preprocessor">#include "<a class="code" href="a00728.html">blobbox.h</a>"</span>
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<a name="l00022"></a>00022 <span class="preprocessor">#include "<a class="code" href="a01117.html">equationdetectbase.h</a>"</span>
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<a name="l00023"></a>00023
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<a name="l00024"></a>00024 <span class="keyword">namespace </span><a class="code" href="a01266.html#afed58feacb84df2de88bdd613cfdba6d">tesseract</a> {
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<a name="l00025"></a>00025
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<a name="l00026"></a><a class="code" href="a00371.html#a3b2301eba9ed77a87db61b404aadfd09">00026</a> <a class="code" href="a00371.html#a3b2301eba9ed77a87db61b404aadfd09">EquationDetectBase::EquationDetectBase</a>() {
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<a name="l00027"></a>00027 }
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<a name="l00028"></a>00028
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<a name="l00029"></a><a class="code" href="a00371.html#a4fc19c3b0dc2f209d4dd93b9f2ac48e3">00029</a> <a class="code" href="a00371.html#a4fc19c3b0dc2f209d4dd93b9f2ac48e3">EquationDetectBase::~EquationDetectBase</a>() {
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<a name="l00030"></a>00030 }
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<a name="l00031"></a>00031
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<a name="l00032"></a><a class="code" href="a00371.html#a135d1cd23d326e3e8f64e7e3255e8e0d">00032</a> <span class="keywordtype">void</span> <a class="code" href="a00371.html#a135d1cd23d326e3e8f64e7e3255e8e0d">EquationDetectBase::RenderSpecialText</a>(Pix* pix,
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<a name="l00033"></a>00033 <a class="code" href="a00279.html">BLOBNBOX</a>* blob) {
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<a name="l00034"></a>00034 <a class="code" href="a00823.html#a93a603f4063a6b9403d81caa245a583b">ASSERT_HOST</a>(pix != NULL && pixGetDepth(pix) == 32 && blob != NULL);
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<a name="l00035"></a>00035 <span class="keyword">const</span> <a class="code" href="a00592.html">TBOX</a>& tbox = blob-><a class="code" href="a00279.html#a7b97b8bc16b1473a28f9c44011522f4e">bounding_box</a>();
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<a name="l00036"></a>00036 <span class="keywordtype">int</span> height = pixGetHeight(pix);
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<a name="l00037"></a>00037 <span class="keyword">const</span> <span class="keywordtype">int</span> box_width = 5;
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<a name="l00038"></a>00038
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<a name="l00039"></a>00039 <span class="comment">// Coordinate translation: tesseract use left bottom as the original, while</span>
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<a name="l00040"></a>00040 <span class="comment">// leptonica uses left top as the original.</span>
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<a name="l00041"></a>00041 Box *box = boxCreate(tbox.<a class="code" href="a00592.html#a724fabf566586b663577dfa944ffbc61">left</a>(), height - tbox.<a class="code" href="a00592.html#adf92e9fdac1bdf11c10d1c4d1178791a">top</a>(),
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<a name="l00042"></a>00042 tbox.<a class="code" href="a00592.html#af95494a2ccacc70cc2b83820b2948619">width</a>(), tbox.<a class="code" href="a00592.html#a8379d4bbc72bdbb1f069fc14790e632d">height</a>());
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<a name="l00043"></a>00043 <span class="keywordflow">switch</span> (blob-><a class="code" href="a00279.html#aa33e4d1cf720df979dc50d2b39abb4e9">special_text_type</a>()) {
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<a name="l00044"></a>00044 <span class="keywordflow">case</span> <a class="code" href="a00728.html#a75b089d27e1df813fed544e0c131df8ca356056d522254adc40c8acdf14f19c4d">BSTT_MATH</a>: <span class="comment">// Red box.</span>
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<a name="l00045"></a>00045 pixRenderBoxArb(pix, box, box_width, 255, 0, 0);
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<a name="l00046"></a>00046 <span class="keywordflow">break</span>;
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<a name="l00047"></a>00047 <span class="keywordflow">case</span> <a class="code" href="a00728.html#a75b089d27e1df813fed544e0c131df8caaf28e2df284d1c1c8caf262b5fcdb3f4">BSTT_DIGIT</a>: <span class="comment">// cyan box.</span>
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<a name="l00048"></a>00048 pixRenderBoxArb(pix, box, box_width, 0, 255, 255);
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<a name="l00049"></a>00049 <span class="keywordflow">break</span>;
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<a name="l00050"></a>00050 <span class="keywordflow">case</span> <a class="code" href="a00728.html#a75b089d27e1df813fed544e0c131df8ca9f7c059031ba5f95a4e0f43bac16a33a">BSTT_ITALIC</a>: <span class="comment">// Green box.</span>
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<a name="l00051"></a>00051 pixRenderBoxArb(pix, box, box_width, 0, 255, 0);
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<a name="l00052"></a>00052 <span class="keywordflow">break</span>;
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<a name="l00053"></a>00053 <span class="keywordflow">case</span> <a class="code" href="a00728.html#a75b089d27e1df813fed544e0c131df8ca604529fa299b8dcc81b0ac07ebb2c9b7">BSTT_UNCLEAR</a>: <span class="comment">// blue box.</span>
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<a name="l00054"></a>00054 pixRenderBoxArb(pix, box, box_width, 0, 255, 0);
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<a name="l00055"></a>00055 <span class="keywordflow">break</span>;
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<a name="l00056"></a>00056 <span class="keywordflow">case</span> <a class="code" href="a00728.html#a75b089d27e1df813fed544e0c131df8ca1e2ca6a59ce1487c101d4605eab44b7a">BSTT_NONE</a>:
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<a name="l00057"></a>00057 <span class="keywordflow">default</span>:
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<a name="l00058"></a>00058 <span class="comment">// yellow box.</span>
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<a name="l00059"></a>00059 pixRenderBoxArb(pix, box, box_width, 255, 255, 0);
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<a name="l00060"></a>00060 <span class="keywordflow">break</span>;
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<a name="l00061"></a>00061 }
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<a name="l00062"></a>00062 boxDestroy(&box);
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<a name="l00063"></a>00063 }
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<a name="l00064"></a>00064
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<a name="l00065"></a>00065 }; <span class="comment">// namespace tesseract</span>
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