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9e55eefe13
refactor common code to consolidate Bezier and line function implementations into a single location.
61 lines
2 KiB
C++
61 lines
2 KiB
C++
/*
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* Copyright (c) 2020 - 2024 the ThorVG project. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _TVG_LINES_H_
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#define _TVG_LINES_H_
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#include "tvgCommon.h"
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namespace tvg
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{
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struct Line
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{
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Point pt1;
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Point pt2;
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};
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float lineLength(const Point& pt1, const Point& pt2);
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void lineSplitAt(const Line& cur, float at, Line& left, Line& right);
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struct Bezier
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{
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Point start;
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Point ctrl1;
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Point ctrl2;
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Point end;
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};
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void bezSplit(const Bezier&cur, Bezier& left, Bezier& right);
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float bezLength(const Bezier& cur);
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void bezSplitLeft(Bezier& cur, float at, Bezier& left);
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float bezAt(const Bezier& bz, float at, float length);
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void bezSplitAt(const Bezier& cur, float at, Bezier& left, Bezier& right);
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Point bezPointAt(const Bezier& bz, float t);
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float bezAngleAt(const Bezier& bz, float t);
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float bezLengthApprox(const Bezier& cur);
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float bezAtApprox(const Bezier& bz, float at, float length);
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}
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#endif //_TVG_LINES_H_
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