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57 lines
2.7 KiB
C++
57 lines
2.7 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2016 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#include "volumeutils.h"
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namespace openspace {
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namespace volumeutils {
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size_t coordsToIndex(const glm::vec3& coords, const glm::ivec3& dims) {
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size_t w = dims.x;
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size_t h = dims.y;
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size_t d = dims.z;
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size_t x = coords.x;
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size_t y = coords.y;
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size_t z = coords.z;
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return coords.z * (h * w) + coords.y * w + coords.x;
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}
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glm::vec3 indexToCoords(size_t index, const glm::ivec3& dims) {
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size_t w = dims.x;
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size_t h = dims.y;
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size_t d = dims.z;
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size_t x = index % w;
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size_t y = (index / w) % h;
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size_t z = index / w / h;
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return glm::ivec3(x, y, z);
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}
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} // namespace volumeutils
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} // namespace openspace
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