mirror of
https://github.com/42wim/matterbridge.git
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68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
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/*
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* Copyright (c) 2020 Samsung Electronics Co., Ltd. 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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#include "vector_vpathmesure.h"
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#include <limits>
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#include "vector_vbezier.h"
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#include "vector_vdasher.h"
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V_BEGIN_NAMESPACE
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/*
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* start and end value must be normalized to [0 - 1]
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* Path mesure trims the path from [start --> end]
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* if start > end it treates as a loop and trims as two segment
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* [0-->end] and [start --> 1]
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*/
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VPath VPathMesure::trim(const VPath &path)
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{
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if (vCompare(mStart, mEnd)) return VPath();
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if ((vCompare(mStart, 0.0f) && (vCompare(mEnd, 1.0f))) ||
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(vCompare(mStart, 1.0f) && (vCompare(mEnd, 0.0f))))
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return path;
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float length = path.length();
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if (mStart < mEnd) {
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float array[4] = {
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0.0f, length * mStart, // 1st segment
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(mEnd - mStart) * length,
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std::numeric_limits<float>::max(), // 2nd segment
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};
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VDasher dasher(array, 4);
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dasher.dashed(path, mScratchObject);
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return mScratchObject;
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} else {
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float array[4] = {
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length * mEnd, (mStart - mEnd) * length, // 1st segment
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(1 - mStart) * length,
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std::numeric_limits<float>::max(), // 2nd segment
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};
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VDasher dasher(array, 4);
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dasher.dashed(path, mScratchObject);
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return mScratchObject;
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}
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}
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V_END_NAMESPACE
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