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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/wordrec/olutil.cpp</div> </div>
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<div class="contents">
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<a href="a01242.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*-C-*-</span>
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<a name="l00002"></a>00002 <span class="comment"> ********************************************************************************</span>
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<a name="l00003"></a>00003 <span class="comment"> *</span>
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<a name="l00004"></a>00004 <span class="comment"> * File: olutil.c (Formerly olutil.c)</span>
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<a name="l00005"></a>00005 <span class="comment"> * Description:</span>
108
<a name="l00006"></a>00006 <span class="comment"> * Author: Mark Seaman, OCR Technology</span>
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<a name="l00007"></a>00007 <span class="comment"> * Created: Fri Oct 16 14:37:00 1987</span>
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<a name="l00008"></a>00008 <span class="comment"> * Modified: Fri May 17 13:11:24 1991 (Mark Seaman) marks@hpgrlt</span>
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<a name="l00009"></a>00009 <span class="comment"> * Language: C</span>
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<a name="l00010"></a>00010 <span class="comment"> * Package: N/A</span>
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<a name="l00011"></a>00011 <span class="comment"> * Status: Reusable Software Component</span>
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<a name="l00012"></a>00012 <span class="comment"> *</span>
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<a name="l00013"></a>00013 <span class="comment"> * (c) Copyright 1987, Hewlett-Packard Company.</span>
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<a name="l00014"></a>00014 <span class="comment"> ** Licensed under the Apache License, Version 2.0 (the "License");</span>
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<a name="l00015"></a>00015 <span class="comment"> ** you may not use this file except in compliance with the License.</span>
118
<a name="l00016"></a>00016 <span class="comment"> ** You may obtain a copy of the License at</span>
119
<a name="l00017"></a>00017 <span class="comment"> ** http://www.apache.org/licenses/LICENSE-2.0</span>
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<a name="l00018"></a>00018 <span class="comment"> ** Unless required by applicable law or agreed to in writing, software</span>
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<a name="l00019"></a>00019 <span class="comment"> ** distributed under the License is distributed on an "AS IS" BASIS,</span>
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<a name="l00020"></a>00020 <span class="comment"> ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
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<a name="l00021"></a>00021 <span class="comment"> ** See the License for the specific language governing permissions and</span>
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<a name="l00022"></a>00022 <span class="comment"> ** limitations under the License.</span>
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<a name="l00023"></a>00023 <span class="comment"> *</span>
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<a name="l00024"></a>00024 <span class="comment"> *********************************************************************************/</span>
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<a name="l00025"></a>00025 <span class="comment">/*----------------------------------------------------------------------</span>
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<a name="l00026"></a>00026 <span class="comment"> I n c l u d e s</span>
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<a name="l00027"></a>00027 <span class="comment">----------------------------------------------------------------------*/</span>
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<a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="a01243.html">olutil.h</a>"</span>
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<a name="l00029"></a>00029 <span class="preprocessor">#include "<a class="code" href="a01045.html">structures.h</a>"</span>
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<a name="l00030"></a>00030 <span class="preprocessor">#include "<a class="code" href="a00730.html">blobs.h</a>"</span>
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<a name="l00031"></a>00031 <span class="preprocessor">#include "<a class="code" href="a01026.html">const.h</a>"</span>
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<a name="l00032"></a>00032
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<a name="l00033"></a>00033 <span class="preprocessor">#ifdef __UNIX__</span>
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<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#include <assert.h></span>
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<a name="l00035"></a>00035 <span class="preprocessor">#endif</span>
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<a name="l00036"></a>00036 <span class="preprocessor"></span>
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<a name="l00037"></a>00037 <span class="comment">/*----------------------------------------------------------------------</span>
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<a name="l00038"></a>00038 <span class="comment"> F u n c t i o n s</span>
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<a name="l00039"></a>00039 <span class="comment">----------------------------------------------------------------------*/</span>
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<a name="l00040"></a>00040 <span class="comment">/**********************************************************************</span>
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<a name="l00041"></a>00041 <span class="comment"> * correct_blob_order</span>
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<a name="l00042"></a>00042 <span class="comment"> *</span>
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<a name="l00043"></a>00043 <span class="comment"> * Check to see if the blobs are in the correct order. If they are not</span>
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<a name="l00044"></a>00044 <span class="comment"> * then swap which outlines are attached to which blobs.</span>
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<a name="l00045"></a>00045 <span class="comment"> **********************************************************************/</span>
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<a name="l00046"></a><a class="code" href="a01243.html#ac29e40d2a6a1a8a7a1eb317324262d86">00046</a> <span class="keywordtype">void</span> <a class="code" href="a01242.html#ac29e40d2a6a1a8a7a1eb317324262d86">correct_blob_order</a>(<a class="code" href="a00591.html">TBLOB</a> *blob1, <a class="code" href="a00591.html">TBLOB</a> *blob2) {
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<a name="l00047"></a>00047 <a class="code" href="a00629.html">TPOINT</a> origin1;
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<a name="l00048"></a>00048 <a class="code" href="a00629.html">TPOINT</a> origin2;
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<a name="l00049"></a>00049 <a class="code" href="a00613.html">TESSLINE</a> *temp;
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<a name="l00050"></a>00050
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<a name="l00051"></a>00051 <a class="code" href="a00729.html#a0464f690c04a9aeb7710a6df1c0ba1fb">blob_origin</a>(blob1, &origin1);
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<a name="l00052"></a>00052 <a class="code" href="a00729.html#a0464f690c04a9aeb7710a6df1c0ba1fb">blob_origin</a>(blob2, &origin2);
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<a name="l00053"></a>00053
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<a name="l00054"></a>00054 <span class="keywordflow">if</span> (origin1.<a class="code" href="a00629.html#aa9c98655c3a2a0437821e5a3d3418b0f">x</a> > origin2.<a class="code" href="a00629.html#aa9c98655c3a2a0437821e5a3d3418b0f">x</a>) {
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<a name="l00055"></a>00055 temp = blob2-><a class="code" href="a00591.html#a3c9282cad4102157d214bcc6311cda07">outlines</a>;
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<a name="l00056"></a>00056 blob2-><a class="code" href="a00591.html#a3c9282cad4102157d214bcc6311cda07">outlines</a> = blob1-><a class="code" href="a00591.html#a3c9282cad4102157d214bcc6311cda07">outlines</a>;
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<a name="l00057"></a>00057 blob1-><a class="code" href="a00591.html#a3c9282cad4102157d214bcc6311cda07">outlines</a> = temp;
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<a name="l00058"></a>00058 }
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<a name="l00059"></a>00059 }
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<a name="l00060"></a>00060
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<a name="l00061"></a>00061
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<a name="l00062"></a>00062 <span class="comment">/**********************************************************************</span>
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<a name="l00063"></a>00063 <span class="comment"> * eliminate_duplicate_outlines</span>
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<a name="l00064"></a>00064 <span class="comment"> *</span>
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<a name="l00065"></a>00065 <span class="comment"> * Find and delete any duplicate outline records in this blob.</span>
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<a name="l00066"></a>00066 <span class="comment"> **********************************************************************/</span>
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<a name="l00067"></a><a class="code" href="a01243.html#a1d3c90a38ea91d7baf73af2c77b03d7f">00067</a> <span class="keywordtype">void</span> <a class="code" href="a01242.html#a1d3c90a38ea91d7baf73af2c77b03d7f">eliminate_duplicate_outlines</a>(<a class="code" href="a00591.html">TBLOB</a> *blob) {
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<a name="l00068"></a>00068 <a class="code" href="a00613.html">TESSLINE</a> *outline;
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<a name="l00069"></a>00069 <a class="code" href="a00613.html">TESSLINE</a> *other_outline;
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<a name="l00070"></a>00070 <a class="code" href="a00613.html">TESSLINE</a> *last_outline;
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<a name="l00071"></a>00071
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<a name="l00072"></a>00072 <span class="keywordflow">for</span> (outline = blob-><a class="code" href="a00591.html#a3c9282cad4102157d214bcc6311cda07">outlines</a>; outline; outline = outline-><a class="code" href="a00613.html#a0fb224d43ea53a791f0957fa92793bef">next</a>) {
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<a name="l00073"></a>00073
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<a name="l00074"></a>00074 <span class="keywordflow">for</span> (last_outline = outline, other_outline = outline-><a class="code" href="a00613.html#a0fb224d43ea53a791f0957fa92793bef">next</a>;
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<a name="l00075"></a>00075 other_outline;
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<a name="l00076"></a>00076 last_outline = other_outline, other_outline = other_outline-><a class="code" href="a00613.html#a0fb224d43ea53a791f0957fa92793bef">next</a>) {
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<a name="l00077"></a>00077
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<a name="l00078"></a>00078 <span class="keywordflow">if</span> (<a class="code" href="a01243.html#a4bc2f1c0c8896eb6273a1e213280a446">same_outline_bounds</a> (outline, other_outline)) {
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<a name="l00079"></a>00079 last_outline-><a class="code" href="a00613.html#a0fb224d43ea53a791f0957fa92793bef">next</a> = other_outline-><a class="code" href="a00613.html#a0fb224d43ea53a791f0957fa92793bef">next</a>;
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<a name="l00080"></a>00080 <span class="comment">// This doesn't leak - the outlines share the EDGEPTs.</span>
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<a name="l00081"></a>00081 other_outline-><a class="code" href="a00613.html#a0ab1e26b1dae548f0bd3c096c6183b18">loop</a> = NULL;
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<a name="l00082"></a>00082 <span class="keyword">delete</span> other_outline;
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<a name="l00083"></a>00083 other_outline = last_outline;
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<a name="l00084"></a>00084 <span class="comment">// If it is part of a cut, then it can't be a hole any more.</span>
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<a name="l00085"></a>00085 outline-><a class="code" href="a00613.html#a8af6c63b0dca8a993397d2f5f0bc5723">is_hole</a> = <span class="keyword">false</span>;
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<a name="l00086"></a>00086 }
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<a name="l00087"></a>00087 }
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<a name="l00088"></a>00088 }
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<a name="l00089"></a>00089 }
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<a name="l00090"></a>00090
193
<a name="l00091"></a>00091 <span class="comment">/**********************************************************************</span>
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<a name="l00092"></a>00092 <span class="comment"> * setup_blob_outlines</span>
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<a name="l00093"></a>00093 <span class="comment"> *</span>
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<a name="l00094"></a>00094 <span class="comment"> * Set up each of the outlines in this blob.</span>
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<a name="l00095"></a>00095 <span class="comment"> **********************************************************************/</span>
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<a name="l00096"></a><a class="code" href="a01243.html#ad4f4e346c4650affddae46c8df8299ce">00096</a> <span class="keywordtype">void</span> <a class="code" href="a01242.html#ad4f4e346c4650affddae46c8df8299ce">setup_blob_outlines</a>(<a class="code" href="a00591.html">TBLOB</a> *blob) {
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<a name="l00097"></a>00097 <a class="code" href="a00613.html">TESSLINE</a> *outline;
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<a name="l00098"></a>00098
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<a name="l00099"></a>00099 <span class="keywordflow">for</span> (outline = blob-><a class="code" href="a00591.html#a3c9282cad4102157d214bcc6311cda07">outlines</a>; outline; outline = outline-><a class="code" href="a00613.html#a0fb224d43ea53a791f0957fa92793bef">next</a>) {
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<a name="l00100"></a>00100 outline-><a class="code" href="a00613.html#aacf6d56a8b92228f875e06d09c78eca5">ComputeBoundingBox</a>();
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<a name="l00101"></a>00101 }
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<a name="l00102"></a>00102 }
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</pre></div></div><!-- contents -->
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