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tesseract
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src/ccstruct/ccstruct.h
40 строк
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Stefan Weil
Use more `constexpr`
18 июн 2026, 18:34
18 июн 2026, 18:34
b1cbc63
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/////////////////////////////////////////////////////////////////////// // File: ccstruct.h // Description: ccstruct class. // Author: Samuel Charron // // (C) Copyright 2006, Google Inc. // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // http://www.apache.org/licenses/LICENSE-2.0 // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // /////////////////////////////////////////////////////////////////////// #ifndef TESSERACT_CCSTRUCT_CCSTRUCT_H_ #define TESSERACT_CCSTRUCT_CCSTRUCT_H_ #include "ccutil.h" // for CCUtil namespace tesseract { class CCStruct : public CCUtil { public: // Globally accessible constants. // APPROXIMATIONS of the fractions of the character cell taken by // the descenders, ascenders, and x-height. static constexpr double kDescenderFraction = 0.25; static constexpr double kXHeightFraction = 0.5; static constexpr double kAscenderFraction = 0.25; // Derived value giving the x-height as a fraction of cap-height. static constexpr double kXHeightCapRatio = kXHeightFraction / (kXHeightFraction + kAscenderFraction); }; } // namespace tesseract #endif // TESSERACT_CCSTRUCT_CCSTRUCT_H_