mirror of http://192.168.1.51:8099/lmh188/twain3.0
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
///////////////////////////////////////////////////////////////////////
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// File: ccstruct.h
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// Description: ccstruct class.
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// Author: Samuel Charron
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//
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// (C) Copyright 2006, Google Inc.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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///////////////////////////////////////////////////////////////////////
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#ifndef TESSERACT_CCSTRUCT_CCSTRUCT_H__
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#define TESSERACT_CCSTRUCT_CCSTRUCT_H__
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#include "cutil.h"
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namespace tesseract {
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class CCStruct : public CUtil {
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public:
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CCStruct();
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~CCStruct();
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// Globally accessible constants.
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// APPROXIMATIONS of the fractions of the character cell taken by
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// the descenders, ascenders, and x-height.
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static const double kDescenderFraction; // = 0.25;
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static const double kXHeightFraction; // = 0.5;
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static const double kAscenderFraction; // = 0.25;
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// Derived value giving the x-height as a fraction of cap-height.
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static const double kXHeightCapRatio; // = XHeight/(XHeight + Ascender).
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};
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class Tesseract;
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} // namespace tesseract
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#endif // TESSERACT_CCSTRUCT_CCSTRUCT_H__
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